sd

Fork of TextLCD by Wim Huiskamp

Committer:
wim
Date:
Sun Mar 29 13:08:03 2015 +0000
Revision:
37:ce348c002929
Parent:
36:9f5f86dfd44a
Child:
38:cbe275b0b647
Child:
42:c21b3e729cb3
Cleaned up low level command and data write operations to improve speed of I2C expander versions (PCF8574 and MCP23008). Added initial support for controllers with alternative fonttables.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wim 37:ce348c002929 1 /* mbed TextLCD Library, for LCDs based on HD44780 controllers
simon 6:e4cb7ddee0d3 2 * Copyright (c) 2007-2010, sford, http://mbed.org
wim 14:0c32b66b14b8 3 * 2013, v01: WH, Added LCD types, fixed LCD address issues, added Cursor and UDCs
wim 14:0c32b66b14b8 4 * 2013, v02: WH, Added I2C and SPI bus interfaces
wim 15:b70ebfffb258 5 * 2013, v03: WH, Added support for LCD40x4 which uses 2 controllers
wim 18:bd65dc10f27f 6 * 2013, v04: WH, Added support for Display On/Off, improved 4bit bootprocess
wim 18:bd65dc10f27f 7 * 2013, v05: WH, Added support for 8x2B, added some UDCs
wim 19:c747b9e2e7b8 8 * 2013, v06: WH, Added support for devices that use internal DC/DC converters
wim 20:e0da005a777f 9 * 2013, v07: WH, Added support for backlight and include portdefinitions for LCD2004 Module from DFROBOT
wim 22:35742ec80c24 10 * 2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined pins
wim 25:6162b31128c9 11 * 2014, v09: WH/EO, Added Class for Native SPI controllers such as ST7032
wim 26:bd897a001012 12 * 2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module
wim 30:033048611c01 13 * 2014, v11: WH, Added support for native I2C controllers such as PCF21XX, Improved the _initCtrl() method to deal with differences between all supported controllers
wim 32:59c4b8f648d4 14 * 2014, v12: WH, Added support for native I2C controller PCF2119 and native I2C/SPI controllers SSD1803, ST7036, added setContrast method (by JH1PJL) for supported devices (eg ST7032i)
wim 34:e5a0dcb43ecc 15 * 2014, v13: WH, Added support for controllers US2066/SSD1311 (OLED), added setUDCBlink() method for supported devices (eg SSD1803), fixed issue in setPower()
wim 34:e5a0dcb43ecc 16 * 2014, v14: WH, Added support for PT6314 (VFD), added setOrient() method for supported devices (eg SSD1803, US2066), added Double Height lines for supported devices,
wim 34:e5a0dcb43ecc 17 * added 16 UDCs for supported devices (eg PCF2103), moved UDC defines to TextLCD_UDC file, added TextLCD_Config.h for feature and footprint settings.
wim 35:311be6444a39 18 * 2014, v15: WH, Added AC780 support, added I2C expander modules, fixed setBacklight() for inverted logic modules. Fixed bug in LCD_SPI_N define
wim 36:9f5f86dfd44a 19 * 2014, v16: WH, Added ST7070 and KS0073 support, added setIcon(), clrIcon() and setInvert() method for supported devices
wim 37:ce348c002929 20 * 2015, v17: WH, Clean up low-level _writeCommand() and _writeData(), Added support for alternative fonttables (eg PCF21XX), Added ST7066_ACM controller for ACM1602 module
simon 1:ac48b187213c 21 *
simon 1:ac48b187213c 22 * Permission is hereby granted, free of charge, to any person obtaining a copy
simon 1:ac48b187213c 23 * of this software and associated documentation files (the "Software"), to deal
simon 1:ac48b187213c 24 * in the Software without restriction, including without limitation the rights
simon 1:ac48b187213c 25 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
simon 1:ac48b187213c 26 * copies of the Software, and to permit persons to whom the Software is
simon 1:ac48b187213c 27 * furnished to do so, subject to the following conditions:
simon 1:ac48b187213c 28 *
simon 1:ac48b187213c 29 * The above copyright notice and this permission notice shall be included in
simon 1:ac48b187213c 30 * all copies or substantial portions of the Software.
simon 1:ac48b187213c 31 *
simon 1:ac48b187213c 32 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
simon 1:ac48b187213c 33 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
simon 1:ac48b187213c 34 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
simon 1:ac48b187213c 35 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
simon 1:ac48b187213c 36 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
simon 1:ac48b187213c 37 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
simon 1:ac48b187213c 38 * THE SOFTWARE.
simon 1:ac48b187213c 39 */
wim 34:e5a0dcb43ecc 40 #include "mbed.h"
simon 1:ac48b187213c 41 #include "TextLCD.h"
wim 34:e5a0dcb43ecc 42 #include "TextLCD_UDC.inc"
wim 34:e5a0dcb43ecc 43
wim 21:9eb628d9e164 44 /** Create a TextLCD_Base interface
wim 15:b70ebfffb258 45 *
wim 21:9eb628d9e164 46 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 21:9eb628d9e164 47 * @param ctrl LCD controller (default = HD44780)
wim 15:b70ebfffb258 48 */
wim 21:9eb628d9e164 49 TextLCD_Base::TextLCD_Base(LCDType type, LCDCtrl ctrl) : _type(type), _ctrl(ctrl) {
wim 30:033048611c01 50
wim 30:033048611c01 51 // Extract LCDType data
wim 30:033048611c01 52
wim 30:033048611c01 53 // Columns encoded in b7..b0
wim 30:033048611c01 54 _nr_cols = (_type & 0xFF);
wim 30:033048611c01 55
wim 30:033048611c01 56 // Rows encoded in b15..b8
wim 30:033048611c01 57 _nr_rows = ((_type >> 8) & 0xFF);
wim 30:033048611c01 58
wim 30:033048611c01 59 // Addressing mode encoded in b19..b16
wim 30:033048611c01 60 _addr_mode = _type & LCD_T_ADR_MSK;
wim 37:ce348c002929 61
wim 37:ce348c002929 62 // Font table, encoded in LCDCtrl
wim 37:ce348c002929 63 _font = _type & LCD_C_FNT_MSK;
wim 14:0c32b66b14b8 64 }
wim 14:0c32b66b14b8 65
wim 21:9eb628d9e164 66 /** Init the LCD Controller(s)
wim 21:9eb628d9e164 67 * Clear display
wim 36:9f5f86dfd44a 68 * @param _LCDDatalength dl sets the datalength of data/commands
wim 36:9f5f86dfd44a 69 * @return none
wim 21:9eb628d9e164 70 */
wim 36:9f5f86dfd44a 71 void TextLCD_Base::_init(_LCDDatalength dl) {
wim 15:b70ebfffb258 72
wim 15:b70ebfffb258 73 // Select and configure second LCD controller when needed
wim 15:b70ebfffb258 74 if(_type==LCD40x4) {
wim 30:033048611c01 75 _ctrl_idx=_LCDCtrl_1; // Select 2nd controller
wim 36:9f5f86dfd44a 76 _initCtrl(dl); // Init 2nd controller
wim 15:b70ebfffb258 77 }
wim 15:b70ebfffb258 78
wim 15:b70ebfffb258 79 // Select and configure primary LCD controller
wim 27:22d5086f6ba6 80 _ctrl_idx=_LCDCtrl_0; // Select primary controller
wim 36:9f5f86dfd44a 81 _initCtrl(dl); // Init primary controller
wim 28:30fa94f7341c 82
wim 32:59c4b8f648d4 83 // Clear whole display and Reset Cursor location
wim 32:59c4b8f648d4 84 // Note: This will make sure that some 3-line displays that skip topline of a 4-line configuration
wim 32:59c4b8f648d4 85 // are cleared and init cursor correctly.
wim 32:59c4b8f648d4 86 cls();
wim 15:b70ebfffb258 87 }
wim 15:b70ebfffb258 88
wim 21:9eb628d9e164 89 /** Init the LCD controller
wim 36:9f5f86dfd44a 90 * Set number of lines, fonttype, no cursor etc
wim 36:9f5f86dfd44a 91 * The controller is accessed in 4-bit parallel mode either directly via mbed pins or through I2C or SPI expander.
wim 36:9f5f86dfd44a 92 * Some controllers also support native I2C or SPI interfaces.
wim 36:9f5f86dfd44a 93 *
wim 36:9f5f86dfd44a 94 * @param _LCDDatalength dl sets the 4 or 8 bit datalength of data/commands. Required for some native serial modes.
wim 36:9f5f86dfd44a 95 * @return none
wim 30:033048611c01 96 *
wim 30:033048611c01 97 * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim 21:9eb628d9e164 98 */
wim 36:9f5f86dfd44a 99 void TextLCD_Base::_initCtrl(_LCDDatalength dl) {
wim 32:59c4b8f648d4 100 int _bias_lines=0; // Set Bias and lines (Instr Set 1), temporary variable.
wim 32:59c4b8f648d4 101 int _lines=0; // Set lines (Ext Instr Set), temporary variable.
wim 36:9f5f86dfd44a 102
wim 26:bd897a001012 103 this->_setRS(false); // command mode
wim 13:24506ba22480 104
wim 26:bd897a001012 105 wait_ms(20); // Wait 20ms to ensure powered up
simon 1:ac48b187213c 106
wim 37:ce348c002929 107 if (dl == _LCD_DL_4) {
wim 37:ce348c002929 108 // The Controller could be in 8 bit mode (power-on reset) or in 4 bit mode (warm reboot) at this point.
wim 37:ce348c002929 109 // Follow this procedure to make sure the Controller enters the correct state. The hardware interface
wim 37:ce348c002929 110 // between the uP and the LCD can only write the 4 most significant bits (Most Significant Nibble, MSN).
wim 37:ce348c002929 111 // In 4 bit mode the LCD expects the MSN first, followed by the LSN.
wim 37:ce348c002929 112 //
wim 37:ce348c002929 113 // Current state: 8 bit mode | 4 bit mode, MSN is next | 4 bit mode, LSN is next
wim 37:ce348c002929 114 //-------------------------------------------------------------------------------------------------
wim 37:ce348c002929 115 _writeNibble(0x3); // set 8 bit mode (MSN) and dummy LSN, | set 8 bit mode (MSN), | set dummy LSN,
wim 37:ce348c002929 116 // remains in 8 bit mode | change to 8 bit mode | remains in 4 bit mode
wim 37:ce348c002929 117 wait_ms(15); //
wim 37:ce348c002929 118
wim 37:ce348c002929 119 _writeNibble(0x3); // set 8 bit mode and dummy LSN, | set 8 bit mode and dummy LSN, | set 8bit mode (MSN),
wim 37:ce348c002929 120 // remains in 8 bit mode | remains in 8 bit mode | remains in 4 bit mode
wim 37:ce348c002929 121 wait_ms(15); //
wim 33:900a94bc7585 122
wim 37:ce348c002929 123 _writeNibble(0x3); // set 8 bit mode and dummy LSN, | set 8 bit mode and dummy LSN, | set dummy LSN,
wim 37:ce348c002929 124 // remains in 8 bit mode | remains in 8 bit mode | change to 8 bit mode
wim 37:ce348c002929 125 wait_ms(15); //
wim 37:ce348c002929 126
wim 37:ce348c002929 127 // Controller is now in 8 bit mode
wim 37:ce348c002929 128
wim 37:ce348c002929 129 _writeNibble(0x2); // Change to 4-bit mode (MSN), the LSN is undefined dummy
wim 37:ce348c002929 130 wait_us(40); // most instructions take 40us
wim 37:ce348c002929 131
wim 37:ce348c002929 132 // Controller is now in 4-bit mode
wim 37:ce348c002929 133 // Note: 4/8 bit mode is ignored for most native SPI and I2C devices. They dont use the parallel bus.
wim 37:ce348c002929 134 // However, _writeNibble() method is void anyway for native SPI and I2C devices.
wim 37:ce348c002929 135 }
wim 25:6162b31128c9 136
wim 29:a3663151aa65 137 // Device specific initialisations: DC/DC converter to generate VLCD or VLED, number of lines etc
wim 19:c747b9e2e7b8 138 switch (_ctrl) {
wim 32:59c4b8f648d4 139
wim 36:9f5f86dfd44a 140 case KS0073:
wim 36:9f5f86dfd44a 141 // Initialise Display configuration
wim 36:9f5f86dfd44a 142 switch (_type) {
wim 36:9f5f86dfd44a 143 case LCD8x1: //8x1 is a regular 1 line display
wim 36:9f5f86dfd44a 144 case LCD12x1:
wim 36:9f5f86dfd44a 145 case LCD16x1:
wim 36:9f5f86dfd44a 146 case LCD20x1:
wim 36:9f5f86dfd44a 147 case LCD24x1:
wim 36:9f5f86dfd44a 148 // case LCD32x1: // EXT pin is High, extension driver needed
wim 36:9f5f86dfd44a 149 // case LCD40x1: // EXT pin is High, extension driver needed
wim 36:9f5f86dfd44a 150 _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 151 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 152 // N=0 (1-line mode, N=1 2-line mode)
wim 36:9f5f86dfd44a 153 // RE=0 (Dis. Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 154 // DH=1 (Disp shift enable, special mode for KS0073)
wim 36:9f5f86dfd44a 155 // REV=0 (Reverse normal, special mode for KS0073)
wim 36:9f5f86dfd44a 156
wim 36:9f5f86dfd44a 157 _function_1 = 0x04; // Function set 001 DL N RE(1) BE LP (Ext Regs)
wim 36:9f5f86dfd44a 158 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 159 // N=0 (1-line mode, N=1 2-line mode)
wim 36:9f5f86dfd44a 160 // RE=1 (Ena Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 161 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
wim 36:9f5f86dfd44a 162 // LP=0 (LP=1 Low power mode, LP=0 Normal)
wim 36:9f5f86dfd44a 163
wim 36:9f5f86dfd44a 164 _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 36:9f5f86dfd44a 165 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
wim 36:9f5f86dfd44a 166 break;
wim 36:9f5f86dfd44a 167
wim 36:9f5f86dfd44a 168 // case LCD12x3D: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 169 // case LCD12x3D1: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 170 case LCD12x4D: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 171 // case LCD16x3D: // Special mode for KS0073, KS0078
wim 36:9f5f86dfd44a 172 // case LCD16x4D: // Special mode for KS0073, KS0078
wim 36:9f5f86dfd44a 173 case LCD20x4D: // Special mode for KS0073, KS0078
wim 36:9f5f86dfd44a 174 _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 175 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 176 // N=0 (dont care for 4 line mode)
wim 36:9f5f86dfd44a 177 // RE=0 (Dis. Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 178 // DH=1 (Disp shift enable, special mode for KS0073)
wim 36:9f5f86dfd44a 179 // REV=0 (Reverse normal, special mode for KS0073)
wim 36:9f5f86dfd44a 180
wim 36:9f5f86dfd44a 181 _function_1 = 0x04; // Function set 001 DL N RE(1) BE LP (Ext Regs)
wim 36:9f5f86dfd44a 182 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 183 // N=0 (1-line mode), N=1 (2-line mode)
wim 36:9f5f86dfd44a 184 // RE=1 (Ena Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 185 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
wim 36:9f5f86dfd44a 186 // LP=0 (LP=1 Low power mode, LP=0 Normal)
wim 36:9f5f86dfd44a 187
wim 36:9f5f86dfd44a 188 _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 36:9f5f86dfd44a 189 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
wim 36:9f5f86dfd44a 190 break;
wim 36:9f5f86dfd44a 191
wim 36:9f5f86dfd44a 192
wim 36:9f5f86dfd44a 193 case LCD16x3G: // Special mode for ST7036
wim 36:9f5f86dfd44a 194 // case LCD24x3D: // Special mode for KS0078
wim 36:9f5f86dfd44a 195 // case LCD24x3D1: // Special mode for KS0078
wim 36:9f5f86dfd44a 196 case LCD24x4D: // Special mode for KS0078
wim 36:9f5f86dfd44a 197 error("Error: LCD Controller type does not support this Display type\n\r");
wim 36:9f5f86dfd44a 198 break;
wim 36:9f5f86dfd44a 199
wim 36:9f5f86dfd44a 200 default:
wim 36:9f5f86dfd44a 201 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 36:9f5f86dfd44a 202 _function = 0x0A; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 203 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 204 // N=1 (2-line mode), N=0 (1-line mode)
wim 36:9f5f86dfd44a 205 // RE=0 (Dis. Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 206 // DH=1 (Disp shift enable, special mode for KS0073)
wim 36:9f5f86dfd44a 207 // REV=0 (Reverse normal, special mode for KS0073)
wim 36:9f5f86dfd44a 208
wim 36:9f5f86dfd44a 209 _function_1 = 0x0C; // Function set 001 DL N RE(1) BE LP (Ext Regs)
wim 36:9f5f86dfd44a 210 // DL=0 (4 bits bus)
wim 36:9f5f86dfd44a 211 // N=1 (2 line mode), N=0 (1-line mode)
wim 36:9f5f86dfd44a 212 // RE=1 (Ena Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 213 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
wim 36:9f5f86dfd44a 214 // LP=0 (LP=1 Low power mode, LP=0 Normal)
wim 36:9f5f86dfd44a 215
wim 36:9f5f86dfd44a 216 _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 36:9f5f86dfd44a 217 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
wim 36:9f5f86dfd44a 218 break;
wim 36:9f5f86dfd44a 219 } // switch type
wim 36:9f5f86dfd44a 220
wim 36:9f5f86dfd44a 221 // init special features
wim 36:9f5f86dfd44a 222 _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE LP (Ext Regs)
wim 36:9f5f86dfd44a 223 // DL=0 (4 bits bus), DL=1 (8 bits mode)
wim 36:9f5f86dfd44a 224 // N=0 (1 line mode), N=1 (2 line mode)
wim 36:9f5f86dfd44a 225 // RE=1 (Ena Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 226 // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for KS0073)
wim 36:9f5f86dfd44a 227 // LP=0 (LP=1 Low power mode, LP=0 Normal)
wim 36:9f5f86dfd44a 228
wim 36:9f5f86dfd44a 229 _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 36:9f5f86dfd44a 230 // FW=0 (5-dot font, special mode for KS0073)
wim 36:9f5f86dfd44a 231 // BW=0 (Cur BW invert disable, special mode for KS0073)
wim 36:9f5f86dfd44a 232 // NW=0 (1,2 Line), NW=1 (4 line, special mode for KS0073)
wim 36:9f5f86dfd44a 233
wim 36:9f5f86dfd44a 234 _writeCommand(0x10); // Scroll/Shift set 0001 DS/HS4 DS/HS3 DS/HS2 DS/HS1 (Ext Regs)
wim 36:9f5f86dfd44a 235 // Dotscroll/Display shift enable (Special mode for KS0073)
wim 36:9f5f86dfd44a 236
wim 36:9f5f86dfd44a 237 _writeCommand(0x80); // Scroll Quantity set 1 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 (Ext Regs)
wim 36:9f5f86dfd44a 238 // Scroll quantity (Special mode for KS0073)
wim 36:9f5f86dfd44a 239
wim 36:9f5f86dfd44a 240 _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 241 // DL=0 (4 bits bus), DL=1 (8 bits mode)
wim 36:9f5f86dfd44a 242 // N=0 (1 line mode), N=1 (2 line mode)
wim 36:9f5f86dfd44a 243 // RE=0 (Dis. Extended Regs, special mode for KS0073)
wim 36:9f5f86dfd44a 244 // DH=1 (Disp shift enable/disable, special mode for KS0073)
wim 36:9f5f86dfd44a 245 // REV=0 (Reverse/Normal, special mode for KS0073)
wim 36:9f5f86dfd44a 246 break; // case KS0073 Controller
wim 36:9f5f86dfd44a 247
wim 36:9f5f86dfd44a 248
wim 29:a3663151aa65 249 case KS0078:
wim 29:a3663151aa65 250 // Initialise Display configuration
wim 29:a3663151aa65 251 switch (_type) {
wim 29:a3663151aa65 252 case LCD8x1: //8x1 is a regular 1 line display
wim 29:a3663151aa65 253 case LCD8x2B: //8x2B is a special case of 16x1
wim 29:a3663151aa65 254 // case LCD12x1:
wim 29:a3663151aa65 255 case LCD16x1:
wim 30:033048611c01 256 // case LCD20x1:
wim 29:a3663151aa65 257 case LCD24x1:
wim 32:59c4b8f648d4 258 _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 32:59c4b8f648d4 259 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 260 // N=0 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 261 // RE=0 (Dis. Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 262 // DH=1 (Disp shift enable, special mode for KS0078)
wim 32:59c4b8f648d4 263 // REV=0 (Reverse normal, special mode for KS0078)
wim 32:59c4b8f648d4 264
wim 33:900a94bc7585 265 _function_1 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
wim 32:59c4b8f648d4 266 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 267 // N=0 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 268 // RE=1 (Ena Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 269 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
wim 32:59c4b8f648d4 270 // 0
wim 30:033048611c01 271
wim 32:59c4b8f648d4 272 _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 32:59c4b8f648d4 273 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
wim 29:a3663151aa65 274 break;
wim 29:a3663151aa65 275
wim 36:9f5f86dfd44a 276 // case LCD12x3D: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 277 // case LCD12x3D1: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 278 // case LCD12x4D: // Special mode for KS0073, KS0078 and PCF21XX
wim 36:9f5f86dfd44a 279 // case LCD16x3D: // Special mode for KS0073, KS0078
wim 36:9f5f86dfd44a 280 // case LCD16x4D: // Special mode for KS0073, KS0078
wim 36:9f5f86dfd44a 281 // case LCD20x4D: // Special mode for KS0073, KS0078
wim 30:033048611c01 282 // case LCD24x3D: // Special mode for KS0078
wim 30:033048611c01 283 // case LCD24x3D1: // Special mode for KS0078
wim 30:033048611c01 284 case LCD24x4D: // Special mode for KS0078
wim 32:59c4b8f648d4 285 _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 32:59c4b8f648d4 286 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 287 // N=0 (dont care for 4 line mode)
wim 32:59c4b8f648d4 288 // RE=0 (Dis. Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 289 // DH=1 (Disp shift enable, special mode for KS0078)
wim 32:59c4b8f648d4 290 // REV=0 (Reverse normal, special mode for KS0078)
wim 32:59c4b8f648d4 291
wim 33:900a94bc7585 292 _function_1 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
wim 32:59c4b8f648d4 293 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 294 // N=0 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 295 // RE=1 (Ena Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 296 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
wim 32:59c4b8f648d4 297 // 0
wim 29:a3663151aa65 298
wim 32:59c4b8f648d4 299 _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 32:59c4b8f648d4 300 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
wim 30:033048611c01 301 break;
wim 33:900a94bc7585 302
wim 33:900a94bc7585 303 case LCD16x3G: // Special mode for ST7036
wim 33:900a94bc7585 304 error("Error: LCD Controller type does not support this Display type\n\r");
wim 33:900a94bc7585 305 break;
wim 30:033048611c01 306
wim 29:a3663151aa65 307 default:
wim 30:033048611c01 308 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 32:59c4b8f648d4 309 _function = 0x0A; // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 32:59c4b8f648d4 310 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 311 // N=1 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 312 // RE=0 (Dis. Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 313 // DH=1 (Disp shift enable, special mode for KS0078)
wim 32:59c4b8f648d4 314 // REV=0 (Reverse normal, special mode for KS0078)
wim 32:59c4b8f648d4 315
wim 33:900a94bc7585 316 _function_1 = 0x0C; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
wim 32:59c4b8f648d4 317 // DL=0 (4 bits bus)
wim 32:59c4b8f648d4 318 // N=1 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 319 // RE=1 (Ena Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 320 // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
wim 32:59c4b8f648d4 321 // 0
wim 30:033048611c01 322
wim 32:59c4b8f648d4 323 _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 32:59c4b8f648d4 324 // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
wim 29:a3663151aa65 325 break;
wim 29:a3663151aa65 326 } // switch type
wim 29:a3663151aa65 327
wim 32:59c4b8f648d4 328 // init special features
wim 32:59c4b8f648d4 329 _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE 0 (Ext Regs)
wim 32:59c4b8f648d4 330 // DL=0 (4 bits bus), DL=1 (8 bits mode)
wim 32:59c4b8f648d4 331 // N=0 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 332 // RE=1 (Ena Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 333 // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for KS0078)
wim 32:59c4b8f648d4 334 // 0
wim 32:59c4b8f648d4 335
wim 32:59c4b8f648d4 336 _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs)
wim 32:59c4b8f648d4 337 // FW=0 (5-dot font, special mode for KS0078)
wim 32:59c4b8f648d4 338 // BW=0 (Cur BW invert disable, special mode for KS0078)
wim 32:59c4b8f648d4 339 // NW=0 (1,2 Line), NW=1 (4 line, special mode for KS0078)
wim 32:59c4b8f648d4 340
wim 32:59c4b8f648d4 341 _writeCommand(0x10); // Scroll/Shift set 0001 DS/HS4 DS/HS3 DS/HS2 DS/HS1 (Ext Regs)
wim 32:59c4b8f648d4 342 // Dotscroll/Display shift enable (Special mode for KS0078)
wim 32:59c4b8f648d4 343
wim 32:59c4b8f648d4 344 _writeCommand(0x80); // Scroll Quantity set 1 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 (Ext Regs)
wim 32:59c4b8f648d4 345 // Scroll quantity (Special mode for KS0078)
wim 32:59c4b8f648d4 346
wim 32:59c4b8f648d4 347 _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs)
wim 32:59c4b8f648d4 348 // DL=0 (4 bits bus), DL=1 (8 bits mode)
wim 32:59c4b8f648d4 349 // N=0 (1 line mode), N=1 (2 line mode)
wim 32:59c4b8f648d4 350 // RE=0 (Dis. Extended Regs, special mode for KS0078)
wim 32:59c4b8f648d4 351 // DH=1 (Disp shift enable/disable, special mode for KS0078)
wim 32:59c4b8f648d4 352 // REV=0 (Reverse/Normal, special mode for KS0078)
wim 29:a3663151aa65 353 break; // case KS0078 Controller
wim 29:a3663151aa65 354
wim 26:bd897a001012 355 case ST7032_3V3:
wim 26:bd897a001012 356 // ST7032 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim 26:bd897a001012 357 case ST7032_5V:
wim 32:59c4b8f648d4 358 // ST7032 controller: Disable Voltage booster for VLCD. VDD=5V
wim 29:a3663151aa65 359
wim 29:a3663151aa65 360 // Initialise Display configuration
wim 29:a3663151aa65 361 switch (_type) {
wim 29:a3663151aa65 362 case LCD8x1: //8x1 is a regular 1 line display
wim 29:a3663151aa65 363 case LCD8x2B: //8x2B is a special case of 16x1
wim 29:a3663151aa65 364 // case LCD12x1:
wim 29:a3663151aa65 365 case LCD16x1:
wim 30:033048611c01 366 // case LCD20x1:
wim 32:59c4b8f648d4 367 case LCD24x1:
wim 32:59c4b8f648d4 368 _function = 0x00; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=0 (1-line display mode), F=0 (5*7dot), 0, IS
wim 32:59c4b8f648d4 369 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 370 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 371 break;
wim 28:30fa94f7341c 372
wim 32:59c4b8f648d4 373 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 374 case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 375 case LCD12x4D: // Special mode for KS0078 and PCF21XX
wim 33:900a94bc7585 376 case LCD16x3G: // Special mode for ST7036
wim 32:59c4b8f648d4 377 case LCD24x4D: // Special mode for KS0078
wim 32:59c4b8f648d4 378 error("Error: LCD Controller type does not support this Display type\n\r");
wim 30:033048611c01 379 break;
wim 29:a3663151aa65 380
wim 32:59c4b8f648d4 381 default:
wim 32:59c4b8f648d4 382 // All other LCD types are initialised as 2 Line displays
wim 32:59c4b8f648d4 383 _function = 0x08; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=1 (2-line display mode), F=0 (5*7dot), 0, IS
wim 32:59c4b8f648d4 384 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 385 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 386 break;
wim 32:59c4b8f648d4 387 } // switch type
wim 32:59c4b8f648d4 388
wim 32:59c4b8f648d4 389 // init special features
wim 33:900a94bc7585 390 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
wim 33:900a94bc7585 391
wim 33:900a94bc7585 392 _writeCommand(0x1C); // Internal OSC frequency adjustment Framefreq=183HZ, Bias will be 1/4 (Instr Set=1)
wim 32:59c4b8f648d4 393
wim 32:59c4b8f648d4 394 _contrast = LCD_ST7032_CONTRAST;
wim 32:59c4b8f648d4 395 _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast Low bits, 0 1 1 1 C3 C2 C1 C0 (IS=1)
wim 32:59c4b8f648d4 396
wim 32:59c4b8f648d4 397
wim 32:59c4b8f648d4 398 if (_ctrl == ST7032_3V3) {
wim 36:9f5f86dfd44a 399 // _icon_power = 0x04; // Icon display off, Booster circuit is turned on (IS=1)
wim 36:9f5f86dfd44a 400 _icon_power = 0x0C; // Icon display on, Booster circuit is turned on (IS=1)
wim 32:59c4b8f648d4 401 // Saved to allow contrast change at later time
wim 32:59c4b8f648d4 402 }
wim 32:59c4b8f648d4 403 else {
wim 36:9f5f86dfd44a 404 // _icon_power = 0x00; // Icon display off, Booster circuit is turned off (IS=1)
wim 36:9f5f86dfd44a 405 _icon_power = 0x08; // Icon display on, Booster circuit is turned off (IS=1)
wim 32:59c4b8f648d4 406 // Saved to allow contrast change at later time
wim 32:59c4b8f648d4 407 }
wim 32:59c4b8f648d4 408 _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Icon, Booster and Contrast High bits, 0 1 0 1 Ion Bon C5 C4 (IS=1)
wim 32:59c4b8f648d4 409 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 410
wim 32:59c4b8f648d4 411 _writeCommand(0x68 | (LCD_ST7032_RAB & 0x07)); // Voltage follower, 0 1 1 0 FOn=1, Ampl ratio Rab2=1, Rab1=0, Rab0=0 (IS=1)
wim 32:59c4b8f648d4 412 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 413
wim 32:59c4b8f648d4 414 _writeCommand(0x20 | _function); // Select Instruction Set = 0
wim 32:59c4b8f648d4 415
wim 32:59c4b8f648d4 416 break; // case ST7032_3V3 Controller
wim 32:59c4b8f648d4 417 // case ST7032_5V Controller
wim 32:59c4b8f648d4 418
wim 32:59c4b8f648d4 419 case ST7036_3V3:
wim 32:59c4b8f648d4 420 // ST7036 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim 32:59c4b8f648d4 421 // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G)
wim 32:59c4b8f648d4 422 case ST7036_5V:
wim 32:59c4b8f648d4 423 // ST7036 controller: Disable Voltage booster for VLCD. VDD=5V
wim 32:59c4b8f648d4 424 // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G)
wim 32:59c4b8f648d4 425
wim 32:59c4b8f648d4 426 // Initialise Display configuration
wim 32:59c4b8f648d4 427 switch (_type) {
wim 32:59c4b8f648d4 428 case LCD8x1: //8x1 is a regular 1 line display
wim 32:59c4b8f648d4 429 case LCD8x2B: //8x2D is a special case of 16x1
wim 32:59c4b8f648d4 430 // case LCD12x1:
wim 32:59c4b8f648d4 431 case LCD16x1:
wim 32:59c4b8f648d4 432 case LCD24x1:
wim 32:59c4b8f648d4 433 _function = 0x00; // Set function, 0 0 1 DL=0 (4-bit Databus), N=0 (1 Line), DH=0 (5x7font), IS2, IS1 (Select Instruction Set)
wim 32:59c4b8f648d4 434 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 435 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 436
wim 32:59c4b8f648d4 437 _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD
wim 32:59c4b8f648d4 438 break;
wim 32:59c4b8f648d4 439
wim 32:59c4b8f648d4 440 // case LCD12x3G: // Special mode for ST7036
wim 32:59c4b8f648d4 441 case LCD16x3G: // Special mode for ST7036
wim 32:59c4b8f648d4 442 _function = 0x08; // Set function, 0 0 1 DL=0 (4-bit Databus), N=1 (2 Line), DH=0 (5x7font), IS2,IS1 (Select Instruction Set)
wim 32:59c4b8f648d4 443 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 444 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 445
wim 32:59c4b8f648d4 446 _bias_lines = 0x05; // Bias: 1/5, 3-Lines LCD
wim 32:59c4b8f648d4 447 break;
wim 32:59c4b8f648d4 448
wim 32:59c4b8f648d4 449 // case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 450 // case LCD16x3D1: // Special mode for SSD1803
wim 30:033048611c01 451 case LCD12x4D: // Special mode for PCF2116
wim 30:033048611c01 452 case LCD24x4D: // Special mode for KS0078
wim 30:033048611c01 453 error("Error: LCD Controller type does not support this Display type\n\r");
wim 29:a3663151aa65 454 break;
wim 28:30fa94f7341c 455
wim 29:a3663151aa65 456 default:
wim 32:59c4b8f648d4 457 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 32:59c4b8f648d4 458 _function = 0x08; // Set function, 0 0 1 DL=0 (4-bit Databus), N=1 (2 Line), DH=0 (5x7font), IS2,IS1 (Select Instruction Set)
wim 32:59c4b8f648d4 459 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 460 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 461
wim 32:59c4b8f648d4 462 _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD
wim 32:59c4b8f648d4 463 break;
wim 32:59c4b8f648d4 464 } // switch type
wim 32:59c4b8f648d4 465
wim 29:a3663151aa65 466
wim 32:59c4b8f648d4 467 // init special features
wim 33:900a94bc7585 468 _writeCommand(0x20 | _function | 0x01); // Set function, IS2,IS1 = 01 (Select Instr Set = 1)
wim 32:59c4b8f648d4 469 _writeCommand(0x10 | _bias_lines); // Set Bias and 1,2 or 3 lines (Instr Set 1)
wim 29:a3663151aa65 470
wim 32:59c4b8f648d4 471 _contrast = LCD_ST7036_CONTRAST;
wim 32:59c4b8f648d4 472 _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast, 0 1 1 1 C3 C2 C1 C0 (Instr Set 1)
wim 32:59c4b8f648d4 473
wim 32:59c4b8f648d4 474 if (_ctrl == ST7036_3V3) {
wim 36:9f5f86dfd44a 475 _icon_power = 0x0C; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=1 Bon=1 C5 C4 (Instr Set 1)
wim 36:9f5f86dfd44a 476 // _icon_power = 0x04; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=0 Bon=1 C5 C4 (Instr Set 1)
wim 32:59c4b8f648d4 477 // Saved to allow contrast change at later time
wim 32:59c4b8f648d4 478 }
wim 32:59c4b8f648d4 479 else {
wim 36:9f5f86dfd44a 480 _icon_power = 0x08; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=1 Bon=0 C5 C4 (Instr Set 1)
wim 36:9f5f86dfd44a 481 // _icon_power = 0x00; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=0 Bon=0 C5 C4 (Instr Set 1)
wim 32:59c4b8f648d4 482 }
wim 29:a3663151aa65 483
wim 32:59c4b8f648d4 484 _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Contrast C5, C4 (Instr Set 1)
wim 32:59c4b8f648d4 485 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 486
wim 32:59c4b8f648d4 487 _writeCommand(0x68 | (LCD_ST7036_RAB & 0x07)); // Voltagefollower On = 1, Ampl ratio Rab2, Rab1, Rab0 = 1 0 1 (Instr Set 1)
wim 32:59c4b8f648d4 488 wait_ms(10); // Wait 10ms to ensure powered up
wim 28:30fa94f7341c 489
wim 32:59c4b8f648d4 490 _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instruction Set = 0)
wim 32:59c4b8f648d4 491
wim 32:59c4b8f648d4 492 break; // case ST7036_3V3 Controller
wim 32:59c4b8f648d4 493 // case ST7036_5V Controller
wim 36:9f5f86dfd44a 494
wim 36:9f5f86dfd44a 495 case ST7070:
wim 36:9f5f86dfd44a 496 // Initialise Display configuration
wim 36:9f5f86dfd44a 497 switch (_type) {
wim 36:9f5f86dfd44a 498 case LCD8x1: //8x1 is a regular 1 line display
wim 36:9f5f86dfd44a 499 case LCD8x2B: //8x2D is a special case of 16x1
wim 36:9f5f86dfd44a 500 // case LCD12x1:
wim 36:9f5f86dfd44a 501 case LCD16x1:
wim 36:9f5f86dfd44a 502 case LCD24x1:
wim 36:9f5f86dfd44a 503 _function = dl | 0x00; // Set function, 0 0 1 DL=0 (4-bit Databus), N=0 (1 Line), EXT=0, x, x
wim 36:9f5f86dfd44a 504 // Note: 4 bit mode is NOT ignored for native SPI !
wim 36:9f5f86dfd44a 505 // Saved to allow switch between Instruction sets at later time
wim 36:9f5f86dfd44a 506 break;
wim 36:9f5f86dfd44a 507
wim 36:9f5f86dfd44a 508 // case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 36:9f5f86dfd44a 509 // case LCD16x3D1: // Special mode for SSD1803
wim 36:9f5f86dfd44a 510 case LCD12x4D: // Special mode for PCF2116
wim 36:9f5f86dfd44a 511 case LCD24x4D: // Special mode for KS0078
wim 36:9f5f86dfd44a 512 // case LCD12x3G: // Special mode for ST7036
wim 36:9f5f86dfd44a 513 case LCD16x3G: // Special mode for ST7036
wim 36:9f5f86dfd44a 514 error("Error: LCD Controller type does not support this Display type\n\r");
wim 36:9f5f86dfd44a 515 break;
wim 36:9f5f86dfd44a 516
wim 36:9f5f86dfd44a 517 default:
wim 36:9f5f86dfd44a 518 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 36:9f5f86dfd44a 519 _function = dl | 0x08; // Set function, 0 0 1 DL, N=1 (2 Line), EXT=0, x, x
wim 36:9f5f86dfd44a 520 // Note: 4 bit mode is NOT ignored for native SPI !
wim 36:9f5f86dfd44a 521 // Saved to allow switch between Instruction sets at later time
wim 36:9f5f86dfd44a 522 break;
wim 36:9f5f86dfd44a 523 } // switch type
wim 36:9f5f86dfd44a 524
wim 36:9f5f86dfd44a 525 // _writeCommand(0x00); // NOP, make sure to sync SPI
wim 36:9f5f86dfd44a 526
wim 36:9f5f86dfd44a 527 // init special features
wim 36:9f5f86dfd44a 528 _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1)
wim 36:9f5f86dfd44a 529
wim 36:9f5f86dfd44a 530 _writeCommand(0x04 | 0x00); // Set Bias resistors 0 0 0 0 0 1 Rb1,Rb0= 0 0 (Extern Res) (Instr Set 1)
wim 36:9f5f86dfd44a 531
wim 36:9f5f86dfd44a 532 _writeCommand(0x40 | 0x00); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
wim 36:9f5f86dfd44a 533 // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
wim 36:9f5f86dfd44a 534 // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
wim 36:9f5f86dfd44a 535
wim 36:9f5f86dfd44a 536 _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
wim 36:9f5f86dfd44a 537
wim 36:9f5f86dfd44a 538 break; // case ST7070 Controller
wim 36:9f5f86dfd44a 539
wim 32:59c4b8f648d4 540 case SSD1803_3V3:
wim 32:59c4b8f648d4 541 // SSD1803 controller: Initialise Voltage booster for VLCD. VDD=3V3
wim 32:59c4b8f648d4 542 // Note: supports 1,2, 3 or 4 lines
wim 32:59c4b8f648d4 543 // case SSD1803_5V:
wim 32:59c4b8f648d4 544 // SSD1803 controller: No Voltage booster for VLCD. VDD=5V
wim 32:59c4b8f648d4 545
wim 29:a3663151aa65 546 // Initialise Display configuration
wim 29:a3663151aa65 547 switch (_type) {
wim 29:a3663151aa65 548 case LCD8x1: //8x1 is a regular 1 line display
wim 30:033048611c01 549 case LCD8x2B: //8x2D is a special case of 16x1
wim 29:a3663151aa65 550 // case LCD12x1:
wim 29:a3663151aa65 551 case LCD16x1:
wim 29:a3663151aa65 552 case LCD24x1:
wim 32:59c4b8f648d4 553 _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS
wim 32:59c4b8f648d4 554 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 555 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 556 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 557 // N=0 1 Line / 3 Line
wim 32:59c4b8f648d4 558 // DH=0 Double Height disable
wim 32:59c4b8f648d4 559 // IS=0
wim 32:59c4b8f648d4 560
wim 33:900a94bc7585 561 _function_1 = 0x02; // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 562 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 563 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 564 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 565 // N=0 1 Line / 3 Line
wim 32:59c4b8f648d4 566 // BE=0 Blink Enable off, special feature of SSD1803
wim 32:59c4b8f648d4 567 // REV=0 Reverse off, special feature of SSD1803
wim 32:59c4b8f648d4 568
wim 32:59c4b8f648d4 569 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 32:59c4b8f648d4 570 // NW=0 1-Line LCD (N=0)
wim 29:a3663151aa65 571 break;
wim 32:59c4b8f648d4 572
wim 33:900a94bc7585 573 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 574 // case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 33:900a94bc7585 575 case LCD16x3D: // Special mode for KS0078
wim 32:59c4b8f648d4 576 // case LCD16x3D1: // Special mode for SSD1803
wim 32:59c4b8f648d4 577 // case LCD20x3D: // Special mode for SSD1803
wim 32:59c4b8f648d4 578 _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS
wim 32:59c4b8f648d4 579 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 580 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 581 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 582 // N=0 1 Line / 3 Line
wim 32:59c4b8f648d4 583 // DH=0 Double Height disable
wim 32:59c4b8f648d4 584 // IS=0
wim 32:59c4b8f648d4 585
wim 33:900a94bc7585 586 _function_1 = 0x02; // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 587 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 588 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 589 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 590 // N=0 1 Line / 3 Line
wim 32:59c4b8f648d4 591 // BE=0 Blink Enable off, special feature of SSD1803
wim 32:59c4b8f648d4 592 // REV=0 Reverse off, special feature of SSD1803
wim 32:59c4b8f648d4 593
wim 32:59c4b8f648d4 594 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 32:59c4b8f648d4 595 // NW=1 3-Line LCD (N=0)
wim 29:a3663151aa65 596 break;
wim 30:033048611c01 597
wim 32:59c4b8f648d4 598 case LCD20x4D: // Special mode for SSD1803
wim 32:59c4b8f648d4 599 _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS
wim 32:59c4b8f648d4 600 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 601 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 602 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 603 // N=1 4 Line
wim 32:59c4b8f648d4 604 // DH=0 Double Height disable
wim 32:59c4b8f648d4 605 // IS=0
wim 32:59c4b8f648d4 606
wim 33:900a94bc7585 607 _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 608 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 609 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 610 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 611 // N=1 4 Line
wim 32:59c4b8f648d4 612 // BE=0 Blink Enable off, special feature of SSD1803
wim 32:59c4b8f648d4 613 // REV=0 Reverse off, special feature of SSD1803
wim 32:59c4b8f648d4 614
wim 32:59c4b8f648d4 615 _lines = 0x01; // Ext function set 0 0 0 0 1 FW BW NW
wim 32:59c4b8f648d4 616 // NW=1 4-Line LCD (N=1)
wim 32:59c4b8f648d4 617 break;
wim 32:59c4b8f648d4 618
wim 33:900a94bc7585 619 case LCD16x3G: // Special mode for ST7036
wim 32:59c4b8f648d4 620 case LCD24x4D: // Special mode for KS0078
wim 30:033048611c01 621 error("Error: LCD Controller type does not support this Display type\n\r");
wim 30:033048611c01 622 break;
wim 30:033048611c01 623
wim 29:a3663151aa65 624 default:
wim 30:033048611c01 625 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 32:59c4b8f648d4 626 _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS
wim 32:59c4b8f648d4 627 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 628 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 629 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 630 // N=1 2 line / 4 Line
wim 32:59c4b8f648d4 631 // DH=0 Double Height disable
wim 36:9f5f86dfd44a 632 // RE=0
wim 32:59c4b8f648d4 633 // IS=0
wim 29:a3663151aa65 634
wim 33:900a94bc7585 635 _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 636 // Saved to allow switch between Instruction sets at later time
wim 32:59c4b8f648d4 637 // DL=0 4-bit Databus,
wim 32:59c4b8f648d4 638 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 32:59c4b8f648d4 639 // N=1 2 line / 4 Line
wim 32:59c4b8f648d4 640 // BE=0 Blink Enable off, special feature of SSD1803
wim 36:9f5f86dfd44a 641 // RE=1
wim 32:59c4b8f648d4 642 // REV=0 Reverse off, special feature of SSD1803
wim 32:59c4b8f648d4 643
wim 32:59c4b8f648d4 644 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 32:59c4b8f648d4 645 // NW=0 2-Line LCD (N=1)
wim 32:59c4b8f648d4 646 break;
wim 32:59c4b8f648d4 647 } // switch type
wim 32:59c4b8f648d4 648
wim 32:59c4b8f648d4 649
wim 32:59c4b8f648d4 650 // init special features
wim 33:900a94bc7585 651 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 652 // Select Extended Instruction Set
wim 33:900a94bc7585 653
wim 33:900a94bc7585 654 _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
wim 33:900a94bc7585 655 // _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
wim 33:900a94bc7585 656 wait_ms(5); // Wait to ensure completion or SSD1803 fails to set Top/Bottom after reset..
wim 33:900a94bc7585 657
wim 33:900a94bc7585 658 _writeCommand(0x08 | _lines); // Set ext function 0 0 0 0 1 FW BW NW 1,2,3 or 4 lines (Ext Instr Set)
wim 32:59c4b8f648d4 659
wim 32:59c4b8f648d4 660 _writeCommand(0x10); // Double Height and Bias, 0 0 0 1 UD2=0, UD1=0, BS1=0 Bias 1/5, DH=0 (Ext Instr Set)
wim 32:59c4b8f648d4 661
wim 32:59c4b8f648d4 662 // _writeCommand(0x76); // Set TC Control, 0 1 1 1 0 1 1 0 (Ext Instr Set)
wim 32:59c4b8f648d4 663 // _writeData(0x02); // Set TC data, 0 0 0 0 0 TC2,TC1,TC0 = 0 1 0 (Ext Instr Set)
wim 32:59c4b8f648d4 664
wim 32:59c4b8f648d4 665 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS=1 Select Instruction Set 1
wim 32:59c4b8f648d4 666 // Select Std Instr set, Select IS=1
wim 32:59c4b8f648d4 667
wim 32:59c4b8f648d4 668 _contrast = LCD_SSD1_CONTRAST;
wim 32:59c4b8f648d4 669 _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast 0 1 1 1 C3, C2, C1, C0 (Instr Set 1)
wim 32:59c4b8f648d4 670
wim 36:9f5f86dfd44a 671 // _icon_power = 0x04; // Icon off, Booster on (Instr Set 1)
wim 36:9f5f86dfd44a 672 _icon_power = 0x0C; // Icon on, Booster on (Instr Set 1)
wim 32:59c4b8f648d4 673 // Saved to allow contrast change at later time
wim 32:59c4b8f648d4 674 _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Power, Icon and Contrast, 0 1 0 1 Ion Bon C5 C4 (Instr Set 1)
wim 32:59c4b8f648d4 675 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 676
wim 32:59c4b8f648d4 677 _writeCommand(0x68 | (LCD_SSD1_RAB & 0x07)); // Set Voltagefollower 0 1 1 0 Don = 1, Ampl ratio Rab2, Rab1, Rab0 = 1 1 0 (Instr Set 1)
wim 32:59c4b8f648d4 678 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 679
wim 33:900a94bc7585 680 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
wim 32:59c4b8f648d4 681 // Select Extended Instruction Set 1
wim 32:59c4b8f648d4 682 _writeCommand(0x10); // Shift/Scroll enable, 0 0 0 1 DS4/HS4 DS3/HS3 DS2/HS2 DS1/HS1 (Ext Instr Set 1)
wim 32:59c4b8f648d4 683
wim 32:59c4b8f648d4 684
wim 32:59c4b8f648d4 685 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 32:59c4b8f648d4 686 // Select Std Instr set, Select IS=0
wim 32:59c4b8f648d4 687
wim 32:59c4b8f648d4 688 break; // case SSD1803 Controller
wim 32:59c4b8f648d4 689
wim 29:a3663151aa65 690
wim 32:59c4b8f648d4 691 // Note1: The PCF21XX family of controllers has several types that dont have an onboard voltage generator for V-LCD.
wim 32:59c4b8f648d4 692 // You must supply this LCD voltage externally and not try to enable VGen.
wim 32:59c4b8f648d4 693 // Note2: The early versions of PCF2116 controllers (eg PCF2116C) can not generate sufficiently negative voltage for the LCD at a VDD of 3V3.
wim 32:59c4b8f648d4 694 // You must supply this voltage externally and not enable VGen or you must use a higher VDD (e.g. 5V) and enable VGen.
wim 32:59c4b8f648d4 695 // More recent versions of the controller (eg PCF2116K) have an improved VGen that will work with 3V3.
wim 32:59c4b8f648d4 696 // Note3: See datasheet, PCF2116 and other types provide a V0 pin to control the LCD contrast voltage that is provided by VGen. This pins allows
wim 32:59c4b8f648d4 697 // contrast control similar to that of pin 3 on the standard 14pin LCD module connector.
wim 32:59c4b8f648d4 698 // You can disable VGen by connecting Vo to VDD. VLCD will then be used directly as LCD voltage.
wim 32:59c4b8f648d4 699 // Note4: PCF2113 and PCF2119 are different wrt to VLCD generator! There is no V0 pin. The contrast voltage is software controlled by setting the VA and VB registers.
wim 32:59c4b8f648d4 700 // Vgen is automatically switched off when the contrast voltage VA or VB is set to 0x00. Note that certain limits apply to allowed values for VA and VB.
wim 32:59c4b8f648d4 701 // Note5: See datasheet, members of the PCF21XX family support different numbers of rows/columns. Not all can support 3 or 4 rows.
wim 32:59c4b8f648d4 702 // Note6: See datasheet, the PCF21XX-C and PCF21XX-K use a non-standard character set. This may result is strange looking text when not corrected..
wim 32:59c4b8f648d4 703
wim 34:e5a0dcb43ecc 704 case PCF2103_3V3:
wim 34:e5a0dcb43ecc 705 // PCF2103 controller: No Voltage generator for VLCD, VDD=3V3..5V, VLCD input controls contrast voltage.
wim 34:e5a0dcb43ecc 706 // Initialise Display configuration
wim 34:e5a0dcb43ecc 707 switch (_type) {
wim 34:e5a0dcb43ecc 708 case LCD24x1:
wim 34:e5a0dcb43ecc 709 _function = 0x00; //FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=0 1-line/24 chars display mode, 0, H=0
wim 34:e5a0dcb43ecc 710 //Note: 4 bit mode is ignored for I2C mode
wim 34:e5a0dcb43ecc 711 break;
wim 34:e5a0dcb43ecc 712
wim 34:e5a0dcb43ecc 713 // case LCD12x1D: //Special mode for PCF21XX, Only top line used
wim 34:e5a0dcb43ecc 714 case LCD12x2:
wim 34:e5a0dcb43ecc 715 _function = 0x04; //FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=1 2-line/12 chars display mode, 0, H=0
wim 34:e5a0dcb43ecc 716 //Note: 4 bit mode is ignored for I2C mode
wim 34:e5a0dcb43ecc 717 break;
wim 34:e5a0dcb43ecc 718
wim 34:e5a0dcb43ecc 719 default:
wim 34:e5a0dcb43ecc 720 error("Error: LCD Controller type does not support this Display type\n\r");
wim 34:e5a0dcb43ecc 721 break;
wim 34:e5a0dcb43ecc 722
wim 34:e5a0dcb43ecc 723 } // switch type
wim 34:e5a0dcb43ecc 724
wim 34:e5a0dcb43ecc 725 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 34:e5a0dcb43ecc 726 wait_ms(10); // Wait 10ms to ensure powered up
wim 34:e5a0dcb43ecc 727
wim 34:e5a0dcb43ecc 728 // Note: Display from GA628 shows 12 chars. This is actually the right half of a 24x1 display. The commons have been connected in reverse order.
wim 34:e5a0dcb43ecc 729 _writeCommand(0x05); // Display Conf Set 0000 0, 1, P=0, Q=1 (Instr. Set 1)
wim 34:e5a0dcb43ecc 730
wim 34:e5a0dcb43ecc 731 _writeCommand(0x02); // Screen Config 0000 001, L=0 (Instr. Set 1)
wim 34:e5a0dcb43ecc 732 _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=0 (no Icon blink), 0 (Instr. Set 1)
wim 34:e5a0dcb43ecc 733
wim 34:e5a0dcb43ecc 734 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 34:e5a0dcb43ecc 735
wim 36:9f5f86dfd44a 736 #if(0)
wim 34:e5a0dcb43ecc 737 // Select CG RAM
wim 34:e5a0dcb43ecc 738 _writeCommand(0x40); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 34:e5a0dcb43ecc 739 // Store UDC/Icon pattern:
wim 34:e5a0dcb43ecc 740 // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
wim 34:e5a0dcb43ecc 741 // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
wim 34:e5a0dcb43ecc 742 for (int i=0; i<(8 * 8); i++) {
wim 34:e5a0dcb43ecc 743 // _writeData(0x1F); // All On
wim 34:e5a0dcb43ecc 744 _writeData(0x00); // All Off
wim 34:e5a0dcb43ecc 745 }
wim 36:9f5f86dfd44a 746 #endif
wim 34:e5a0dcb43ecc 747 break; // case PCF2103_3V3 Controller
wim 34:e5a0dcb43ecc 748
wim 30:033048611c01 749 case PCF2113_3V3:
wim 32:59c4b8f648d4 750 // PCF2113 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
wim 29:a3663151aa65 751 // Initialise Display configuration
wim 29:a3663151aa65 752 switch (_type) {
wim 29:a3663151aa65 753 // case LCD12x1:
wim 33:900a94bc7585 754 // _function = 0x02; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=0 1-line/12 chars display mode, SL=1, IS=0
wim 32:59c4b8f648d4 755 // Note: 4 bit mode is ignored for I2C mode
wim 29:a3663151aa65 756 case LCD24x1:
wim 33:900a94bc7585 757 _function = 0x00; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=0 1-line/24 chars display mode, SL=0, IS=0
wim 32:59c4b8f648d4 758 // Note: 4 bit mode is ignored for I2C mode
wim 30:033048611c01 759 break;
wim 30:033048611c01 760
wim 30:033048611c01 761 case LCD12x2:
wim 33:900a94bc7585 762 _function = 0x04; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=1 2-line/12 chars display mode, SL=0, IS=0
wim 30:033048611c01 763 break;
wim 30:033048611c01 764
wim 30:033048611c01 765 default:
wim 30:033048611c01 766 error("Error: LCD Controller type does not support this Display type\n\r");
wim 30:033048611c01 767 break;
wim 30:033048611c01 768
wim 30:033048611c01 769 } // switch type
wim 30:033048611c01 770
wim 32:59c4b8f648d4 771 // Init special features
wim 33:900a94bc7585 772 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 33:900a94bc7585 773
wim 33:900a94bc7585 774 _writeCommand(0x04); // Display Conf Set 0000 0, 1, P=0, Q=0 (Instr. Set 1)
wim 33:900a94bc7585 775 _writeCommand(0x10); // Temp Compensation Set 0001 0, 0, TC1=0, TC2=0 (Instr. Set 1)
wim 33:900a94bc7585 776 // _writeCommand(0x42); // HV GEN 0100 S1=1, S2=0 (2x multiplier) (Instr. Set 1)
wim 33:900a94bc7585 777 _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV Gen 0100 S1=1, S2=0 (2x multiplier) (Instr. Set 1)
wim 32:59c4b8f648d4 778
wim 32:59c4b8f648d4 779 _contrast = LCD_PCF2_CONTRAST;
wim 33:900a94bc7585 780 _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) 1, V=0, VA=contrast
wim 33:900a94bc7585 781 _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) 1, V=1, VB=contrast
wim 32:59c4b8f648d4 782 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 783
wim 33:900a94bc7585 784 _writeCommand(0x02); // Screen Config 0000 001, L=0 (Instr. Set 1)
wim 33:900a94bc7585 785 _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=0 (no icon blink) DM=0 (no direct mode) (Instr. Set 1)
wim 33:900a94bc7585 786
wim 33:900a94bc7585 787 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 32:59c4b8f648d4 788
wim 30:033048611c01 789 break; // case PCF2113_3V3 Controller
wim 30:033048611c01 790
wim 30:033048611c01 791
wim 32:59c4b8f648d4 792 // case PCF2113_5V:
wim 32:59c4b8f648d4 793 // PCF2113 controller: No Voltage generator for VLCD. VDD=5V. Contrast voltage controlled by VA or VB.
wim 32:59c4b8f648d4 794 //@TODO
wim 32:59c4b8f648d4 795
wim 30:033048611c01 796
wim 30:033048611c01 797 case PCF2116_3V3:
wim 32:59c4b8f648d4 798 // PCF2116 controller: Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage.
wim 30:033048611c01 799 // Initialise Display configuration
wim 30:033048611c01 800 switch (_type) {
wim 30:033048611c01 801 // case LCD12x1:
wim 30:033048611c01 802 // case LCD12x2:
wim 30:033048611c01 803 case LCD24x1:
wim 34:e5a0dcb43ecc 804 _writeCommand(0x22); //FUNCTION SET 0 0 1 DL=0 4-bit, N=0/M=0 1-line/24 chars display mode, G=1 Vgen on, 0
wim 29:a3663151aa65 805 //Note: 4 bit mode is ignored for I2C mode
wim 29:a3663151aa65 806 wait_ms(10); // Wait 10ms to ensure powered up
wim 29:a3663151aa65 807 break;
wim 29:a3663151aa65 808
wim 32:59c4b8f648d4 809 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 810 case LCD12x3D1: // Special mode for PCF21XX
wim 32:59c4b8f648d4 811 case LCD12x4D: // Special mode for PCF21XX:
wim 34:e5a0dcb43ecc 812 _writeCommand(0x2E); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=1 4-line/12 chars display mode, G=1 VGen on, 0
wim 29:a3663151aa65 813 //Note: 4 bit mode is ignored for I2C mode
wim 29:a3663151aa65 814 wait_ms(10); // Wait 10ms to ensure powered up
wim 29:a3663151aa65 815 break;
wim 30:033048611c01 816
wim 30:033048611c01 817 case LCD24x2:
wim 34:e5a0dcb43ecc 818 _writeCommand(0x2A); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=0 2-line/24 chars display mode, G=1 VGen on, 0
wim 29:a3663151aa65 819 //Note: 4 bit mode is ignored for I2C mode
wim 30:033048611c01 820 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 821 break;
wim 32:59c4b8f648d4 822
wim 30:033048611c01 823 default:
wim 30:033048611c01 824 error("Error: LCD Controller type does not support this Display type\n\r");
wim 30:033048611c01 825 break;
wim 30:033048611c01 826
wim 29:a3663151aa65 827 } // switch type
wim 29:a3663151aa65 828
wim 30:033048611c01 829 break; // case PCF2116_3V3 Controller
wim 29:a3663151aa65 830
wim 32:59c4b8f648d4 831
wim 32:59c4b8f648d4 832 //Experimental for cellphone 3-line display, SA=0x74, No Ack supported, Character set C or K, DL = 8 bit, N=0,M=1 (reserved mode !!), external VLCD -2V5
wim 32:59c4b8f648d4 833 //@TODO
wim 32:59c4b8f648d4 834 case PCF2116_5V:
wim 32:59c4b8f648d4 835 // PCF2116 controller: No Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage.
wim 32:59c4b8f648d4 836 // Initialise Display configuration
wim 32:59c4b8f648d4 837 switch (_type) {
wim 32:59c4b8f648d4 838 // case LCD12x1:
wim 32:59c4b8f648d4 839 // case LCD12x2:
wim 32:59c4b8f648d4 840 // case LCD24x1:
wim 34:e5a0dcb43ecc 841 // _writeCommand(0x20); //FUNCTION SET 0 0 1 DL=0 4-bit, N=0/M=0 1-line/24 chars display mode, G=0 no Vgen, 0
wim 32:59c4b8f648d4 842 //Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 843 // wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 844 // break;
wim 32:59c4b8f648d4 845
wim 32:59c4b8f648d4 846 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 847 case LCD12x3D1: // Special mode for PCF21XX
wim 32:59c4b8f648d4 848 case LCD12x4D: // Special mode for PCF21XX:
wim 32:59c4b8f648d4 849 // _writeCommand(0x34); //FUNCTION SET 8 bit, N=0/M=1 4-line/12 chars display mode OK
wim 32:59c4b8f648d4 850 // _writeCommand(0x24); //FUNCTION SET 4 bit, N=0/M=1 4-line/12 chars display mode OK
wim 34:e5a0dcb43ecc 851 _writeCommand(0x2C); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=1 4-line/12 chars display mode, G=0 no Vgen, 0 OK
wim 32:59c4b8f648d4 852 //Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 853 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 854 break;
wim 32:59c4b8f648d4 855
wim 32:59c4b8f648d4 856 // case LCD24x2:
wim 32:59c4b8f648d4 857 // _writeCommand(0x28); //FUNCTION SET 4 bit, N=1/M=0 2-line/24 chars display mode
wim 32:59c4b8f648d4 858 //Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 859 // wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 860 // break;
wim 32:59c4b8f648d4 861
wim 32:59c4b8f648d4 862 default:
wim 32:59c4b8f648d4 863 error("Error: LCD Controller type does not support this Display type\n\r");
wim 32:59c4b8f648d4 864 break;
wim 32:59c4b8f648d4 865
wim 32:59c4b8f648d4 866 } // switch type
wim 32:59c4b8f648d4 867
wim 32:59c4b8f648d4 868 break; // case PCF2116_5V Controller
wim 32:59c4b8f648d4 869
wim 32:59c4b8f648d4 870 case PCF2119_3V3:
wim 32:59c4b8f648d4 871 // PCF2119 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
wim 32:59c4b8f648d4 872 // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters.
wim 32:59c4b8f648d4 873 // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00.
wim 32:59c4b8f648d4 874
wim 32:59c4b8f648d4 875 //POR or Hardware Reset should be applied
wim 32:59c4b8f648d4 876 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 877
wim 32:59c4b8f648d4 878 // Initialise Display configuration
wim 32:59c4b8f648d4 879 switch (_type) {
wim 32:59c4b8f648d4 880 case LCD8x1:
wim 32:59c4b8f648d4 881 // case LCD12x1:
wim 32:59c4b8f648d4 882 case LCD16x1:
wim 34:e5a0dcb43ecc 883 _function = 0x02; // FUNCTION SET 0 0 1 DL=0 4-bit, 0 , M=0 1-line/16 chars display mode, SL=1
wim 32:59c4b8f648d4 884 // Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 885 break;
wim 32:59c4b8f648d4 886
wim 32:59c4b8f648d4 887 case LCD24x1:
wim 32:59c4b8f648d4 888 // case LCD32x1:
wim 34:e5a0dcb43ecc 889 _function = 0x00; // FUNCTION SET 0 0 1 DL=0 4-bit, 0 , M=0 1-line/32 chars display mode, SL=0
wim 32:59c4b8f648d4 890 // Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 891 break;
wim 32:59c4b8f648d4 892
wim 32:59c4b8f648d4 893 case LCD8x2:
wim 32:59c4b8f648d4 894 // case LCD12x2:
wim 32:59c4b8f648d4 895 case LCD16x2:
wim 34:e5a0dcb43ecc 896 _function = 0x04; // FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=1 2-line/16 chars display mode, SL=0
wim 32:59c4b8f648d4 897 // Note: 4 bit mode is ignored for I2C mode
wim 32:59c4b8f648d4 898 break;
wim 32:59c4b8f648d4 899
wim 32:59c4b8f648d4 900 default:
wim 32:59c4b8f648d4 901 error("Error: LCD Controller type does not support this Display type\n\r");
wim 32:59c4b8f648d4 902 break;
wim 32:59c4b8f648d4 903
wim 32:59c4b8f648d4 904 } // switch type
wim 32:59c4b8f648d4 905
wim 32:59c4b8f648d4 906 // Init special features
wim 32:59c4b8f648d4 907 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1
wim 32:59c4b8f648d4 908
wim 32:59c4b8f648d4 909 _writeCommand(0x04); // DISP CONF SET (Instr. Set 1) 0000, 0, 1, P=0, Q=0
wim 32:59c4b8f648d4 910 _writeCommand(0x10); // TEMP CTRL SET (Instr. Set 1) 0001, 0, 0, TC1=0, TC2=0
wim 32:59c4b8f648d4 911 // _writeCommand(0x42); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier)
wim 32:59c4b8f648d4 912 _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier)
wim 32:59c4b8f648d4 913
wim 32:59c4b8f648d4 914 _contrast = LCD_PCF2_CONTRAST;
wim 32:59c4b8f648d4 915 _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast
wim 32:59c4b8f648d4 916 _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast
wim 32:59c4b8f648d4 917 wait_ms(10); // Wait 10ms to ensure powered up
wim 32:59c4b8f648d4 918
wim 32:59c4b8f648d4 919 _writeCommand(0x02); // SCRN CONF (Instr. Set 1) L=0
wim 32:59c4b8f648d4 920 _writeCommand(0x08); // ICON CONF (Instr. Set 1) IM=0 (Char mode) IB=0 (no icon blink) DM=0 (no direct mode)
wim 32:59c4b8f648d4 921
wim 32:59c4b8f648d4 922 _writeCommand(0x20 | _function); // Select Instruction Set = 0
wim 32:59c4b8f648d4 923
wim 32:59c4b8f648d4 924 break; // case PCF2119_3V3 Controller
wim 32:59c4b8f648d4 925
wim 32:59c4b8f648d4 926 // case PCF2119_5V:
wim 32:59c4b8f648d4 927 // PCF2119 controller: No Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
wim 32:59c4b8f648d4 928 // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters.
wim 32:59c4b8f648d4 929 // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00.
wim 30:033048611c01 930 //@TODO
wim 29:a3663151aa65 931
wim 19:c747b9e2e7b8 932 case WS0010:
wim 19:c747b9e2e7b8 933 // WS0010 OLED controller: Initialise DC/DC Voltage converter for LEDs
wim 30:033048611c01 934 // Note1: Identical to RS0010
wim 30:033048611c01 935 // Note2: supports 1 or 2 lines (and 16x100 graphics)
wim 30:033048611c01 936 // supports 4 fonts (English/Japanese (default), Western European-I, English/Russian, Western European-II)
wim 19:c747b9e2e7b8 937 // Cursor/Disp shift set 0001 SC RL 0 0
wim 19:c747b9e2e7b8 938 //
wim 30:033048611c01 939 // Mode and Power set 0001 GC PWR 1 1
wim 19:c747b9e2e7b8 940 // GC = 0 (Graph Mode=1, Char Mode=0)
wim 30:033048611c01 941 // PWR = 1 (DC/DC On/Off)
wim 30:033048611c01 942
wim 30:033048611c01 943 //@Todo: This may be needed to enable a warm reboot
wim 32:59c4b8f648d4 944 //_writeCommand(0x13); // Char mode, DC/DC off
wim 30:033048611c01 945 //wait_ms(10); // Wait 10ms to ensure powered down
wim 32:59c4b8f648d4 946 _writeCommand(0x17); // Char mode, DC/DC on
wim 30:033048611c01 947 wait_ms(10); // Wait 10ms to ensure powered up
wim 29:a3663151aa65 948
wim 29:a3663151aa65 949 // Initialise Display configuration
wim 29:a3663151aa65 950 switch (_type) {
wim 29:a3663151aa65 951 case LCD8x1: //8x1 is a regular 1 line display
wim 29:a3663151aa65 952 case LCD8x2B: //8x2B is a special case of 16x1
wim 29:a3663151aa65 953 // case LCD12x1:
wim 29:a3663151aa65 954 case LCD16x1:
wim 30:033048611c01 955 case LCD24x1:
wim 30:033048611c01 956 _writeCommand(0x20); // Function set 001 DL N F FT1 FT0
wim 30:033048611c01 957 // DL=0 (4 bits bus)
wim 30:033048611c01 958 // N=0 (1 line)
wim 30:033048611c01 959 // F=0 (5x7 dots font)
wim 30:033048611c01 960 // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
wim 30:033048611c01 961 break;
wim 30:033048611c01 962
wim 32:59c4b8f648d4 963 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 964 case LCD12x3D1: // Special mode for PCF21XX
wim 32:59c4b8f648d4 965 case LCD12x4D: // Special mode for PCF21XX:
wim 33:900a94bc7585 966 case LCD16x3G: // Special mode for ST7036
wim 30:033048611c01 967 case LCD24x4D: // Special mode for KS0078
wim 30:033048611c01 968 error("Error: LCD Controller type does not support this Display type\n\r");
wim 29:a3663151aa65 969 break;
wim 29:a3663151aa65 970
wim 29:a3663151aa65 971 default:
wim 30:033048611c01 972 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 30:033048611c01 973 _writeCommand(0x28); // Function set 001 DL N F FT1 FT0
wim 30:033048611c01 974 // DL=0 (4 bits bus)
wim 30:033048611c01 975 // N=1 (2 lines)
wim 30:033048611c01 976 // F=0 (5x7 dots font)
wim 30:033048611c01 977 // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
wim 30:033048611c01 978
wim 29:a3663151aa65 979 break;
wim 29:a3663151aa65 980 } // switch type
wim 29:a3663151aa65 981
wim 32:59c4b8f648d4 982 break; // case WS0010 Controller
wim 33:900a94bc7585 983
wim 33:900a94bc7585 984
wim 33:900a94bc7585 985 case US2066_3V3:
wim 33:900a94bc7585 986 // US2066/SSD1311 OLED controller, Initialise for VDD=3V3
wim 33:900a94bc7585 987 // Note: supports 1,2, 3 or 4 lines
wim 33:900a94bc7585 988 // case USS2066_5V:
wim 33:900a94bc7585 989 // US2066 controller, VDD=5V
wim 33:900a94bc7585 990
wim 33:900a94bc7585 991 // Initialise Display configuration
wim 33:900a94bc7585 992 switch (_type) {
wim 33:900a94bc7585 993 case LCD8x1: //8x1 is a regular 1 line display
wim 33:900a94bc7585 994 case LCD8x2B: //8x2D is a special case of 16x1
wim 33:900a94bc7585 995 // case LCD12x1:
wim 33:900a94bc7585 996 case LCD16x1:
wim 33:900a94bc7585 997 // case LCD20x1:
wim 33:900a94bc7585 998 _function = 0x00; // Set function 0 0 1 X N DH RE(0) IS
wim 33:900a94bc7585 999 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1000 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1001 // N=0 1 Line / 3 Line
wim 33:900a94bc7585 1002 // DH=0 Double Height disable
wim 33:900a94bc7585 1003 // IS=0
wim 33:900a94bc7585 1004
wim 33:900a94bc7585 1005 _function_1 = 0x02; // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 1006 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1007 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1008 // N=0 1 Line / 3 Line
wim 33:900a94bc7585 1009 // BE=0 Blink Enable off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1010 // REV=0 Reverse off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1011
wim 33:900a94bc7585 1012 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 33:900a94bc7585 1013 // NW=0 1-Line LCD (N=0)
wim 33:900a94bc7585 1014 break;
wim 33:900a94bc7585 1015
wim 33:900a94bc7585 1016 case LCD16x1C:
wim 33:900a94bc7585 1017 case LCD8x2:
wim 33:900a94bc7585 1018 case LCD16x2:
wim 33:900a94bc7585 1019 case LCD20x2:
wim 33:900a94bc7585 1020 _function = 0x08; // Set function 0 0 1 X N DH RE(0) IS
wim 33:900a94bc7585 1021 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1022 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1023 // N=1 2 line / 4 Line
wim 33:900a94bc7585 1024 // DH=0 Double Height disable
wim 33:900a94bc7585 1025 // IS=0
wim 33:900a94bc7585 1026
wim 33:900a94bc7585 1027 _function_1 = 0x0A; // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 1028 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1029 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1030 // N=1 2 line / 4 Line
wim 33:900a94bc7585 1031 // BE=0 Blink Enable off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1032 // REV=0 Reverse off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1033
wim 33:900a94bc7585 1034 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 33:900a94bc7585 1035 // NW=0 2-Line LCD (N=1)
wim 33:900a94bc7585 1036 break;
wim 33:900a94bc7585 1037
wim 33:900a94bc7585 1038 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 33:900a94bc7585 1039 // case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 33:900a94bc7585 1040 case LCD16x3D: // Special mode for KS0078, SSD1803 and US2066
wim 33:900a94bc7585 1041 // case LCD16x3D1: // Special mode for SSD1803, US2066
wim 33:900a94bc7585 1042 // case LCD20x3D: // Special mode for SSD1803, US2066
wim 33:900a94bc7585 1043 _function = 0x00; // Set function 0 0 1 X N DH RE(0) IS
wim 33:900a94bc7585 1044 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1045 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1046 // N=0 1 Line / 3 Line
wim 33:900a94bc7585 1047 // DH=0 Double Height disable
wim 33:900a94bc7585 1048 // IS=0
wim 33:900a94bc7585 1049
wim 33:900a94bc7585 1050 _function_1 = 0x02; // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 1051 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1052 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1053 // N=0 1 Line / 3 Line
wim 33:900a94bc7585 1054 // BE=0 Blink Enable off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1055 // REV=0 Reverse off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1056
wim 33:900a94bc7585 1057 _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
wim 33:900a94bc7585 1058 // NW=1 3-Line LCD (N=0)
wim 33:900a94bc7585 1059 break;
wim 33:900a94bc7585 1060
wim 33:900a94bc7585 1061 case LCD20x4D: // Special mode for SSD1803, US2066
wim 33:900a94bc7585 1062 _function = 0x08; // Set function 0 0 1 X N DH RE(0) IS
wim 33:900a94bc7585 1063 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1064 // DL=X bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1065 // N=1 2 line / 4 Line
wim 33:900a94bc7585 1066 // DH=0 Double Height disable
wim 33:900a94bc7585 1067 // IS=0
wim 33:900a94bc7585 1068
wim 33:900a94bc7585 1069 _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
wim 33:900a94bc7585 1070 // Saved to allow switch between Instruction sets at later time
wim 33:900a94bc7585 1071 // DL=0 bit is ignored for US2066. Uses hardwired pins instead
wim 33:900a94bc7585 1072 // N=1 2 line / 4 Line
wim 33:900a94bc7585 1073 // BE=0 Blink Enable off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1074 // REV=0 Reverse off, special feature of SSD1803, US2066
wim 33:900a94bc7585 1075
wim 33:900a94bc7585 1076 _lines = 0x01; // Ext function set 0 0 0 0 1 FW BW NW
wim 33:900a94bc7585 1077 // NW=1 4-Line LCD (N=1)
wim 33:900a94bc7585 1078 break;
wim 33:900a94bc7585 1079
wim 33:900a94bc7585 1080 // case LCD24x1:
wim 33:900a94bc7585 1081 // case LCD16x3G: // Special mode for ST7036
wim 33:900a94bc7585 1082 // case LCD24x4D: // Special mode for KS0078
wim 33:900a94bc7585 1083 default:
wim 33:900a94bc7585 1084 error("Error: LCD Controller type does not support this Display type\n\r");
wim 33:900a94bc7585 1085 break;
wim 33:900a94bc7585 1086
wim 33:900a94bc7585 1087 } // switch type
wim 33:900a94bc7585 1088
wim 34:e5a0dcb43ecc 1089 _writeCommand(0x00); // NOP, make sure to sync SPI
wim 33:900a94bc7585 1090
wim 33:900a94bc7585 1091 // init special features
wim 33:900a94bc7585 1092 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 1093 // Select Extended Instruction Set
wim 33:900a94bc7585 1094
wim 33:900a94bc7585 1095 _writeCommand(0x71); // Function Select A: 0 1 1 1 0 0 0 1 (Ext Instr Set)
wim 33:900a94bc7585 1096 _writeData(0x00); // Disable Internal VDD
wim 33:900a94bc7585 1097
wim 33:900a94bc7585 1098 _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
wim 33:900a94bc7585 1099
wim 33:900a94bc7585 1100 _writeCommand(0xD5); // Display Clock Divide Ratio: 1 1 0 1 0 1 0 1 (Ext Instr Set, OLED Instr Set)
wim 33:900a94bc7585 1101 _writeCommand(0x70); // Display Clock Divide Ratio value: 0 1 1 1 0 0 0 0 (Ext Instr Set, OLED Instr Set)
wim 33:900a94bc7585 1102
wim 33:900a94bc7585 1103 _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
wim 33:900a94bc7585 1104
wim 33:900a94bc7585 1105 // _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
wim 33:900a94bc7585 1106 _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
wim 33:900a94bc7585 1107
wim 33:900a94bc7585 1108 _writeCommand(0x08 | _lines); // Set ext function 0 0 0 0 1 FW BW NW 1,2,3 or 4 lines (Ext Instr Set)
wim 33:900a94bc7585 1109
wim 34:e5a0dcb43ecc 1110 // _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
wim 33:900a94bc7585 1111 // // Default
wim 33:900a94bc7585 1112
wim 33:900a94bc7585 1113 _writeCommand(0x72); // Function Select B: 0 1 1 1 0 0 1 0 (Ext Instr Set)
wim 33:900a94bc7585 1114 _writeData(0x01); // Select ROM A (CGRAM 8, CGROM 248)
wim 33:900a94bc7585 1115
wim 33:900a94bc7585 1116 _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
wim 33:900a94bc7585 1117
wim 33:900a94bc7585 1118 _writeCommand(0xDA); // Set Segm Pins Config: 1 1 0 1 1 0 1 0 (Ext Instr Set, OLED)
wim 33:900a94bc7585 1119 _writeCommand(0x10); // Set Segm Pins Config value: Altern Odd/Even, Disable Remap (Ext Instr Set, OLED)
wim 33:900a94bc7585 1120
wim 33:900a94bc7585 1121 _writeCommand(0xDC); // Function Select C: 1 1 0 1 1 1 0 0 (Ext Instr Set, OLED)
wim 33:900a94bc7585 1122 // _writeCommand(0x00); // Set internal VSL, GPIO pin HiZ (always read low)
wim 33:900a94bc7585 1123 _writeCommand(0x80); // Set external VSL, GPIO pin HiZ (always read low)
wim 33:900a94bc7585 1124
wim 33:900a94bc7585 1125 _contrast = LCD_US20_CONTRAST;
wim 33:900a94bc7585 1126 _writeCommand(0x81); // Set Contrast Control: 1 0 0 0 0 0 0 1 (Ext Instr Set, OLED)
wim 33:900a94bc7585 1127 _writeCommand((_contrast << 2) | 0x03); // Set Contrast Value: 8 bits, use 6 bits for compatibility
wim 33:900a94bc7585 1128
wim 33:900a94bc7585 1129 _writeCommand(0xD9); // Set Phase Length: 1 1 0 1 1 0 0 1 (Ext Instr Set, OLED)
wim 33:900a94bc7585 1130 _writeCommand(0xF1); // Set Phase Length Value:
wim 33:900a94bc7585 1131
wim 33:900a94bc7585 1132 _writeCommand(0xDB); // Set VCOMH Deselect Lvl: 1 1 0 1 1 0 1 1 (Ext Instr Set, OLED)
wim 33:900a94bc7585 1133 _writeCommand(0x30); // Set VCOMH Deselect Value: 0.83 x VCC
wim 33:900a94bc7585 1134
wim 33:900a94bc7585 1135 wait_ms(10); // Wait 10ms to ensure powered up
wim 33:900a94bc7585 1136
wim 33:900a94bc7585 1137 //Test Fade/Blinking. Hard Blink on/off, No fade in/out ??
wim 33:900a94bc7585 1138 // _writeCommand(0x23); // Set (Ext Instr Set, OLED)
wim 33:900a94bc7585 1139 // _writeCommand(0x3F); // Set interval 128 frames
wim 33:900a94bc7585 1140 //End Test Blinking
wim 33:900a94bc7585 1141
wim 33:900a94bc7585 1142 _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
wim 33:900a94bc7585 1143
wim 33:900a94bc7585 1144 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 X N DH RE(0) IS=1 Select Instruction Set 1
wim 33:900a94bc7585 1145 // Select Std Instr set, Select IS=1
wim 33:900a94bc7585 1146
wim 33:900a94bc7585 1147 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 1148 // Select Ext Instr Set, IS=1
wim 33:900a94bc7585 1149 _writeCommand(0x10); // Shift/Scroll enable, 0 0 0 1 DS4/HS4 DS3/HS3 DS2/HS2 DS1/HS1 (Ext Instr Set, IS=1)
wim 33:900a94bc7585 1150
wim 33:900a94bc7585 1151 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 1152 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 1153 break; // case US2066/SSD1311 Controller
wim 33:900a94bc7585 1154
wim 34:e5a0dcb43ecc 1155 //not yet tested on hardware
wim 34:e5a0dcb43ecc 1156 case PT6314 :
wim 34:e5a0dcb43ecc 1157 // Initialise Display configuration
wim 34:e5a0dcb43ecc 1158 switch (_type) {
wim 34:e5a0dcb43ecc 1159 case LCD8x1: //8x1 is a regular 1 line display
wim 34:e5a0dcb43ecc 1160 case LCD8x2B: //8x2B is a special case of 16x1
wim 34:e5a0dcb43ecc 1161 // case LCD12x1:
wim 34:e5a0dcb43ecc 1162 case LCD16x1:
wim 34:e5a0dcb43ecc 1163 case LCD20x1:
wim 34:e5a0dcb43ecc 1164 case LCD24x1:
wim 34:e5a0dcb43ecc 1165 _function = 0x00; // Function set 001 DL N X BR1 BR0
wim 34:e5a0dcb43ecc 1166 // DL=0 (4 bits bus)
wim 34:e5a0dcb43ecc 1167 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 34:e5a0dcb43ecc 1168 // N=0 (1 line)
wim 34:e5a0dcb43ecc 1169 // X
wim 34:e5a0dcb43ecc 1170 // BR1=0 (2 significant bits for brightness
wim 34:e5a0dcb43ecc 1171 // BR0=0
wim 34:e5a0dcb43ecc 1172 // 0x0 = 100%
wim 34:e5a0dcb43ecc 1173 // 0x1 = 75%
wim 34:e5a0dcb43ecc 1174 // 0x2 = 50%
wim 34:e5a0dcb43ecc 1175 // 0x3 = 25%
wim 34:e5a0dcb43ecc 1176
wim 34:e5a0dcb43ecc 1177 break;
wim 34:e5a0dcb43ecc 1178
wim 34:e5a0dcb43ecc 1179 // All other valid LCD types are initialised as 2 Line displays
wim 34:e5a0dcb43ecc 1180 case LCD8x2:
wim 34:e5a0dcb43ecc 1181 case LCD16x2:
wim 34:e5a0dcb43ecc 1182 case LCD20x2:
wim 34:e5a0dcb43ecc 1183 case LCD24x2:
wim 34:e5a0dcb43ecc 1184 _function = 0x08; // Function set 001 DL N X BR1 BR2
wim 34:e5a0dcb43ecc 1185 // DL=0 (4 bits bus)
wim 34:e5a0dcb43ecc 1186 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 34:e5a0dcb43ecc 1187 // N=1 (2 lines)
wim 34:e5a0dcb43ecc 1188 // X
wim 34:e5a0dcb43ecc 1189 // BR1=0 (2 significant bits for brightness
wim 34:e5a0dcb43ecc 1190 // BR0=0
wim 34:e5a0dcb43ecc 1191 break;
wim 34:e5a0dcb43ecc 1192
wim 34:e5a0dcb43ecc 1193 default:
wim 34:e5a0dcb43ecc 1194 error("Error: LCD Controller type does not support this Display type\n\r");
wim 34:e5a0dcb43ecc 1195 break;
wim 34:e5a0dcb43ecc 1196 } // switch type
wim 34:e5a0dcb43ecc 1197
wim 34:e5a0dcb43ecc 1198 _contrast = LCD_PT63_CONTRAST;
wim 34:e5a0dcb43ecc 1199 _writeCommand(0x20 | _function | ((~_contrast) >> 4)); // Invert and shift to use 2 MSBs
wim 34:e5a0dcb43ecc 1200 break; // case PT6314 Controller (VFD)
wim 29:a3663151aa65 1201
wim 37:ce348c002929 1202 case ST7066_ACM: // ST7066 4/8 bit, I2C on ACM1602 using a PIC
wim 19:c747b9e2e7b8 1203 default:
wim 32:59c4b8f648d4 1204 // Devices fully compatible to HD44780 that do not use any DC/DC Voltage converters but external VLCD, no icons etc
wim 10:dd9b3a696acd 1205
wim 29:a3663151aa65 1206 // Initialise Display configuration
wim 29:a3663151aa65 1207 switch (_type) {
wim 29:a3663151aa65 1208 case LCD8x1: //8x1 is a regular 1 line display
wim 29:a3663151aa65 1209 case LCD8x2B: //8x2B is a special case of 16x1
wim 29:a3663151aa65 1210 // case LCD12x1:
wim 29:a3663151aa65 1211 case LCD16x1:
wim 30:033048611c01 1212 // case LCD20x1:
wim 29:a3663151aa65 1213 case LCD24x1:
wim 30:033048611c01 1214 // case LCD40x1:
wim 32:59c4b8f648d4 1215 _function = 0x00; // Function set 001 DL N F - -
wim 29:a3663151aa65 1216 // DL=0 (4 bits bus)
wim 29:a3663151aa65 1217 // N=0 (1 line)
wim 29:a3663151aa65 1218 // F=0 (5x7 dots font)
wim 29:a3663151aa65 1219 break;
wim 29:a3663151aa65 1220
wim 32:59c4b8f648d4 1221 case LCD12x3D: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 1222 case LCD12x3D1: // Special mode for KS0078 and PCF21XX
wim 32:59c4b8f648d4 1223 case LCD12x4D: // Special mode for KS0078 and PCF21XX:
wim 33:900a94bc7585 1224 case LCD16x3D: // Special mode for KS0078
wim 32:59c4b8f648d4 1225 // case LCD16x3D1: // Special mode for KS0078
wim 30:033048611c01 1226 // case LCD24x3D: // Special mode for KS0078
wim 32:59c4b8f648d4 1227 // case LCD24x3D1: // Special mode for KS0078
wim 30:033048611c01 1228 case LCD24x4D: // Special mode for KS0078
wim 30:033048611c01 1229 error("Error: LCD Controller type does not support this Display type\n\r");
wim 30:033048611c01 1230 break;
wim 30:033048611c01 1231
wim 30:033048611c01 1232 // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
wim 29:a3663151aa65 1233 default:
wim 32:59c4b8f648d4 1234 _function = 0x08; // Function set 001 DL N F - -
wim 29:a3663151aa65 1235 // DL=0 (4 bits bus)
wim 29:a3663151aa65 1236 // Note: 4 bit mode is ignored for native SPI and I2C devices
wim 29:a3663151aa65 1237 // N=1 (2 lines)
wim 29:a3663151aa65 1238 // F=0 (5x7 dots font, only option for 2 line display)
wim 32:59c4b8f648d4 1239 // - (Don't care)
wim 29:a3663151aa65 1240 break;
wim 29:a3663151aa65 1241 } // switch type
wim 10:dd9b3a696acd 1242
wim 34:e5a0dcb43ecc 1243 _writeCommand(0x20 | _function);
wim 29:a3663151aa65 1244 break; // case default Controller
wim 29:a3663151aa65 1245
wim 34:e5a0dcb43ecc 1246 } // switch Controller specific initialisations
wim 10:dd9b3a696acd 1247
wim 30:033048611c01 1248 // Controller general initialisations
wim 32:59c4b8f648d4 1249 // _writeCommand(0x01); // cls, and set cursor to 0
wim 32:59c4b8f648d4 1250 // wait_ms(10); // The CLS command takes 1.64 ms.
wim 32:59c4b8f648d4 1251 // // Since we are not using the Busy flag, Lets be safe and take 10 ms
wim 28:30fa94f7341c 1252
wim 28:30fa94f7341c 1253 _writeCommand(0x02); // Return Home
wim 28:30fa94f7341c 1254 // Cursor Home, DDRAM Address to Origin
wim 28:30fa94f7341c 1255
wim 28:30fa94f7341c 1256 _writeCommand(0x06); // Entry Mode 0000 0 1 I/D S
wim 13:24506ba22480 1257 // Cursor Direction and Display Shift
wim 28:30fa94f7341c 1258 // I/D=1 (Cur incr)
wim 28:30fa94f7341c 1259 // S=0 (No display shift)
wim 10:dd9b3a696acd 1260
wim 29:a3663151aa65 1261 _writeCommand(0x14); // Cursor or Display shift 0001 S/C R/L x x
wim 29:a3663151aa65 1262 // S/C=0 Cursor moves
wim 29:a3663151aa65 1263 // R/L=1 Right
wim 29:a3663151aa65 1264 //
wim 29:a3663151aa65 1265
wim 13:24506ba22480 1266 // _writeCommand(0x0C); // Display Ctrl 0000 1 D C B
wim 17:652ab113bc2e 1267 // // Display On, Cursor Off, Blink Off
wim 36:9f5f86dfd44a 1268
wim 21:9eb628d9e164 1269 setCursor(CurOff_BlkOff);
wim 21:9eb628d9e164 1270 setMode(DispOn);
simon 1:ac48b187213c 1271 }
simon 1:ac48b187213c 1272
wim 8:03116f75b66e 1273
wim 21:9eb628d9e164 1274 /** Clear the screen, Cursor home.
wim 21:9eb628d9e164 1275 */
wim 21:9eb628d9e164 1276 void TextLCD_Base::cls() {
wim 15:b70ebfffb258 1277
wim 15:b70ebfffb258 1278 // Select and configure second LCD controller when needed
wim 15:b70ebfffb258 1279 if(_type==LCD40x4) {
wim 21:9eb628d9e164 1280 _ctrl_idx=_LCDCtrl_1; // Select 2nd controller
wim 15:b70ebfffb258 1281
wim 15:b70ebfffb258 1282 // Second LCD controller Cursor always Off
wim 21:9eb628d9e164 1283 _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim 15:b70ebfffb258 1284
wim 15:b70ebfffb258 1285 // Second LCD controller Clearscreen
wim 27:22d5086f6ba6 1286 _writeCommand(0x01); // cls, and set cursor to 0
wim 29:a3663151aa65 1287 wait_ms(10); // The CLS command takes 1.64 ms.
wim 29:a3663151aa65 1288 // Since we are not using the Busy flag, Lets be safe and take 10 ms
wim 15:b70ebfffb258 1289
wim 21:9eb628d9e164 1290 _ctrl_idx=_LCDCtrl_0; // Select primary controller
wim 15:b70ebfffb258 1291 }
wim 15:b70ebfffb258 1292
wim 15:b70ebfffb258 1293 // Primary LCD controller Clearscreen
wim 27:22d5086f6ba6 1294 _writeCommand(0x01); // cls, and set cursor to 0
wim 29:a3663151aa65 1295 wait_ms(10); // The CLS command takes 1.64 ms.
wim 29:a3663151aa65 1296 // Since we are not using the Busy flag, Lets be safe and take 10 ms
wim 15:b70ebfffb258 1297
wim 15:b70ebfffb258 1298 // Restore cursormode on primary LCD controller when needed
wim 15:b70ebfffb258 1299 if(_type==LCD40x4) {
wim 17:652ab113bc2e 1300 _setCursorAndDisplayMode(_currentMode,_currentCursor);
wim 15:b70ebfffb258 1301 }
wim 15:b70ebfffb258 1302
wim 29:a3663151aa65 1303 setAddress(0, 0); // Reset Cursor location
wim 32:59c4b8f648d4 1304 // Note: This is needed because some displays (eg PCF21XX) don't use line 0 in the '3 Line' mode.
simon 1:ac48b187213c 1305 }
simon 1:ac48b187213c 1306
wim 29:a3663151aa65 1307 /** Locate cursor to a screen column and row
wim 29:a3663151aa65 1308 *
wim 29:a3663151aa65 1309 * @param column The horizontal position from the left, indexed from 0
wim 29:a3663151aa65 1310 * @param row The vertical position from the top, indexed from 0
wim 29:a3663151aa65 1311 */
wim 21:9eb628d9e164 1312 void TextLCD_Base::locate(int column, int row) {
wim 15:b70ebfffb258 1313
wim 15:b70ebfffb258 1314 // setAddress() does all the heavy lifting:
wim 15:b70ebfffb258 1315 // check column and row sanity,
wim 15:b70ebfffb258 1316 // switch controllers for LCD40x4 if needed
wim 15:b70ebfffb258 1317 // switch cursor for LCD40x4 if needed
wim 15:b70ebfffb258 1318 // set the new memory address to show cursor at correct location
wim 32:59c4b8f648d4 1319 setAddress(column, row);
wim 15:b70ebfffb258 1320 }
wim 30:033048611c01 1321
wim 15:b70ebfffb258 1322
wim 21:9eb628d9e164 1323 /** Write a single character (Stream implementation)
wim 21:9eb628d9e164 1324 */
wim 21:9eb628d9e164 1325 int TextLCD_Base::_putc(int value) {
wim 15:b70ebfffb258 1326 int addr;
wim 15:b70ebfffb258 1327
wim 15:b70ebfffb258 1328 if (value == '\n') {
wim 15:b70ebfffb258 1329 //No character to write
wim 15:b70ebfffb258 1330
wim 15:b70ebfffb258 1331 //Update Cursor
wim 15:b70ebfffb258 1332 _column = 0;
wim 15:b70ebfffb258 1333 _row++;
wim 15:b70ebfffb258 1334 if (_row >= rows()) {
wim 15:b70ebfffb258 1335 _row = 0;
wim 15:b70ebfffb258 1336 }
wim 15:b70ebfffb258 1337 }
wim 15:b70ebfffb258 1338 else {
wim 37:ce348c002929 1339 //Character to write
wim 37:ce348c002929 1340 #if (LCD_DEFAULT_FONT == 1)
wim 37:ce348c002929 1341 _writeData(value);
wim 37:ce348c002929 1342 #else
wim 37:ce348c002929 1343 _writeData(ASCII_2_LCD(value));
wim 37:ce348c002929 1344 #endif
wim 15:b70ebfffb258 1345 //Update Cursor
wim 15:b70ebfffb258 1346 _column++;
wim 15:b70ebfffb258 1347 if (_column >= columns()) {
wim 15:b70ebfffb258 1348 _column = 0;
wim 15:b70ebfffb258 1349 _row++;
wim 15:b70ebfffb258 1350 if (_row >= rows()) {
wim 15:b70ebfffb258 1351 _row = 0;
wim 15:b70ebfffb258 1352 }
wim 15:b70ebfffb258 1353 }
wim 15:b70ebfffb258 1354 } //else
wim 15:b70ebfffb258 1355
wim 15:b70ebfffb258 1356 //Set next memoryaddress, make sure cursor blinks at next location
wim 15:b70ebfffb258 1357 addr = getAddress(_column, _row);
wim 15:b70ebfffb258 1358 _writeCommand(0x80 | addr);
wim 15:b70ebfffb258 1359
wim 15:b70ebfffb258 1360 return value;
wim 15:b70ebfffb258 1361 }
wim 15:b70ebfffb258 1362
wim 15:b70ebfffb258 1363
wim 16:c276b75e6585 1364 // get a single character (Stream implementation)
wim 21:9eb628d9e164 1365 int TextLCD_Base::_getc() {
simon 1:ac48b187213c 1366 return -1;
simon 1:ac48b187213c 1367 }
simon 1:ac48b187213c 1368
wim 37:ce348c002929 1369 /** Convert ASCII character code to the LCD fonttable code
wim 37:ce348c002929 1370 *
wim 37:ce348c002929 1371 * @param c The character to write to the display
wim 37:ce348c002929 1372 * @return The character code for the specific fonttable of the controller
wim 37:ce348c002929 1373 */
wim 37:ce348c002929 1374 int TextLCD_Base::ASCII_2_LCD (int c) {
wim 37:ce348c002929 1375
wim 37:ce348c002929 1376 //LCD_C_FT0 is default for HD44780 and compatible series
wim 37:ce348c002929 1377 if (_font == LCD_C_FT0) return c;
wim 37:ce348c002929 1378
wim 37:ce348c002929 1379 //LCD_C_FT1 for PCF21XXC series
wim 37:ce348c002929 1380 //Used code from Suga koubou library for PCF2119
wim 37:ce348c002929 1381 if (((c >= ' ') && (c <= '?')) || ((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z'))) {
wim 37:ce348c002929 1382 c |= 0x80;
wim 37:ce348c002929 1383 } else if (c >= 0xf0 && c <= 0xff) {
wim 37:ce348c002929 1384 c &= 0x0f;
wim 37:ce348c002929 1385 }
wim 37:ce348c002929 1386 return c;
wim 37:ce348c002929 1387
wim 37:ce348c002929 1388 //LCD_C_FT2 ...
wim 37:ce348c002929 1389 //@TODO add more, eg cyrillic
wim 37:ce348c002929 1390 //@TODO add method to switch between fonts for controllers that support this
wim 37:ce348c002929 1391 }
wim 37:ce348c002929 1392
wim 14:0c32b66b14b8 1393
wim 34:e5a0dcb43ecc 1394 #if(LCD_PRINTF != 1)
wim 34:e5a0dcb43ecc 1395 /** Write a character to the LCD
wim 34:e5a0dcb43ecc 1396 *
wim 34:e5a0dcb43ecc 1397 * @param c The character to write to the display
wim 34:e5a0dcb43ecc 1398 */
wim 34:e5a0dcb43ecc 1399 int TextLCD_Base::putc(int c){
wim 34:e5a0dcb43ecc 1400 return _putc(c);
wim 34:e5a0dcb43ecc 1401 }
wim 34:e5a0dcb43ecc 1402
wim 34:e5a0dcb43ecc 1403
wim 34:e5a0dcb43ecc 1404 /** Write a raw string to the LCD
wim 34:e5a0dcb43ecc 1405 *
wim 34:e5a0dcb43ecc 1406 * @param string text, may be followed by variables to emulate formatting the string.
wim 34:e5a0dcb43ecc 1407 * However, printf formatting is NOT supported and variables will be ignored!
wim 34:e5a0dcb43ecc 1408 */
wim 34:e5a0dcb43ecc 1409 int TextLCD_Base::printf(const char* text, ...) {
wim 34:e5a0dcb43ecc 1410
wim 34:e5a0dcb43ecc 1411 while (*text !=0) {
wim 34:e5a0dcb43ecc 1412 _putc(*text);
wim 34:e5a0dcb43ecc 1413 text++;
wim 34:e5a0dcb43ecc 1414 }
wim 34:e5a0dcb43ecc 1415 return 0;
wim 34:e5a0dcb43ecc 1416 }
wim 34:e5a0dcb43ecc 1417 #endif
wim 34:e5a0dcb43ecc 1418
wim 34:e5a0dcb43ecc 1419
wim 17:652ab113bc2e 1420 // Write a nibble using the 4-bit interface
wim 21:9eb628d9e164 1421 void TextLCD_Base::_writeNibble(int value) {
wim 17:652ab113bc2e 1422
wim 17:652ab113bc2e 1423 // Enable is Low
wim 21:9eb628d9e164 1424 this->_setEnable(true);
wim 37:ce348c002929 1425 this->_setData(value); // Low nibble
wim 17:652ab113bc2e 1426 wait_us(1); // Data setup time
wim 21:9eb628d9e164 1427 this->_setEnable(false);
wim 17:652ab113bc2e 1428 wait_us(1); // Datahold time
wim 17:652ab113bc2e 1429 // Enable is Low
wim 17:652ab113bc2e 1430 }
wim 17:652ab113bc2e 1431
wim 16:c276b75e6585 1432 // Write a byte using the 4-bit interface
wim 21:9eb628d9e164 1433 void TextLCD_Base::_writeByte(int value) {
wim 15:b70ebfffb258 1434
wim 15:b70ebfffb258 1435 // Enable is Low
wim 21:9eb628d9e164 1436 this->_setEnable(true);
wim 21:9eb628d9e164 1437 this->_setData(value >> 4); // High nibble
wim 15:b70ebfffb258 1438 wait_us(1); // Data setup time
wim 21:9eb628d9e164 1439 this->_setEnable(false);
wim 15:b70ebfffb258 1440 wait_us(1); // Data hold time
wim 15:b70ebfffb258 1441
wim 21:9eb628d9e164 1442 this->_setEnable(true);
wim 37:ce348c002929 1443 this->_setData(value); // Low nibble
wim 15:b70ebfffb258 1444 wait_us(1); // Data setup time
wim 21:9eb628d9e164 1445 this->_setEnable(false);
wim 15:b70ebfffb258 1446 wait_us(1); // Datahold time
wim 15:b70ebfffb258 1447
wim 15:b70ebfffb258 1448 // Enable is Low
simon 1:ac48b187213c 1449 }
simon 1:ac48b187213c 1450
wim 21:9eb628d9e164 1451 // Write a command byte to the LCD controller
wim 21:9eb628d9e164 1452 void TextLCD_Base::_writeCommand(int command) {
wim 15:b70ebfffb258 1453
wim 21:9eb628d9e164 1454 this->_setRS(false);
wim 16:c276b75e6585 1455 wait_us(1); // Data setup time for RS
wim 15:b70ebfffb258 1456
wim 21:9eb628d9e164 1457 this->_writeByte(command);
wim 15:b70ebfffb258 1458 wait_us(40); // most instructions take 40us
simon 1:ac48b187213c 1459 }
simon 1:ac48b187213c 1460
wim 21:9eb628d9e164 1461 // Write a data byte to the LCD controller
wim 21:9eb628d9e164 1462 void TextLCD_Base::_writeData(int data) {
wim 15:b70ebfffb258 1463
wim 21:9eb628d9e164 1464 this->_setRS(true);
wim 16:c276b75e6585 1465 wait_us(1); // Data setup time for RS
wim 15:b70ebfffb258 1466
wim 21:9eb628d9e164 1467 this->_writeByte(data);
wim 15:b70ebfffb258 1468 wait_us(40); // data writes take 40us
simon 1:ac48b187213c 1469 }
simon 1:ac48b187213c 1470
wim 8:03116f75b66e 1471
wim 32:59c4b8f648d4 1472 // This replaces the original _address() method.
wim 8:03116f75b66e 1473 // It is confusing since it returns the memoryaddress or-ed with the set memorycommand 0x80.
wim 8:03116f75b66e 1474 // Left it in here for compatibility with older code. New applications should use getAddress() instead.
wim 21:9eb628d9e164 1475 int TextLCD_Base::_address(int column, int row) {
wim 8:03116f75b66e 1476 return 0x80 | getAddress(column, row);
wim 8:03116f75b66e 1477 }
wim 8:03116f75b66e 1478
wim 30:033048611c01 1479
wim 30:033048611c01 1480 // This is new method to return the memory address based on row, column and displaytype.
wim 30:033048611c01 1481 //
wim 30:033048611c01 1482 /** Return the memoryaddress of screen column and row location
wim 30:033048611c01 1483 *
wim 30:033048611c01 1484 * @param column The horizontal position from the left, indexed from 0
wim 30:033048611c01 1485 * @param row The vertical position from the top, indexed from 0
wim 36:9f5f86dfd44a 1486 * @return The memoryaddress of screen column and row location
wim 30:033048611c01 1487 *
wim 30:033048611c01 1488 */
wim 30:033048611c01 1489 int TextLCD_Base::getAddress(int column, int row) {
wim 30:033048611c01 1490
wim 30:033048611c01 1491 switch (_addr_mode) {
wim 30:033048611c01 1492
wim 30:033048611c01 1493 case LCD_T_A:
wim 30:033048611c01 1494 //Default addressing mode for 1, 2 and 4 rows (except 40x4)
wim 30:033048611c01 1495 //The two available rows are split and stacked on top of eachother. Addressing for 3rd and 4th line continues where lines 1 and 2 were split.
wim 30:033048611c01 1496 //Displays top rows when less than four are used.
wim 30:033048611c01 1497 switch (row) {
wim 30:033048611c01 1498 case 0:
wim 30:033048611c01 1499 return 0x00 + column;
wim 30:033048611c01 1500 case 1:
wim 30:033048611c01 1501 return 0x40 + column;
wim 30:033048611c01 1502 case 2:
wim 30:033048611c01 1503 return 0x00 + _nr_cols + column;
wim 30:033048611c01 1504 case 3:
wim 30:033048611c01 1505 return 0x40 + _nr_cols + column;
wim 30:033048611c01 1506 // Should never get here.
wim 30:033048611c01 1507 default:
wim 30:033048611c01 1508 return 0x00;
wim 30:033048611c01 1509 }
wim 30:033048611c01 1510
wim 30:033048611c01 1511 case LCD_T_B:
wim 30:033048611c01 1512 // LCD8x2B is a special layout of LCD16x1
wim 30:033048611c01 1513 if (row==0)
wim 30:033048611c01 1514 return 0x00 + column;
wim 30:033048611c01 1515 else
wim 30:033048611c01 1516 // return _nr_cols + column;
wim 30:033048611c01 1517 return 0x08 + column;
wim 30:033048611c01 1518
wim 30:033048611c01 1519 case LCD_T_C:
wim 30:033048611c01 1520 // LCD16x1C is a special layout of LCD8x2
wim 33:900a94bc7585 1521 // LCD32x1C is a special layout of LCD16x2
wim 33:900a94bc7585 1522 // LCD40x1C is a special layout of LCD20x2
wim 33:900a94bc7585 1523 #if(0)
wim 32:59c4b8f648d4 1524 if (column < 8)
wim 30:033048611c01 1525 return 0x00 + column;
wim 30:033048611c01 1526 else
wim 30:033048611c01 1527 return 0x40 + (column - 8);
wim 32:59c4b8f648d4 1528 #else
wim 32:59c4b8f648d4 1529 if (column < (_nr_cols >> 1))
wim 32:59c4b8f648d4 1530 return 0x00 + column;
wim 32:59c4b8f648d4 1531 else
wim 32:59c4b8f648d4 1532 return 0x40 + (column - (_nr_cols >> 1));
wim 32:59c4b8f648d4 1533 #endif
wim 30:033048611c01 1534
wim 30:033048611c01 1535 // Not sure about this one, seems wrong.
wim 30:033048611c01 1536 // Left in for compatibility with original library
wim 30:033048611c01 1537 // case LCD16x2B:
wim 30:033048611c01 1538 // return 0x00 + (row * 40) + column;
wim 30:033048611c01 1539
wim 30:033048611c01 1540 case LCD_T_D:
wim 36:9f5f86dfd44a 1541 //Alternate addressing mode for 3 and 4 row displays (except 40x4). Used by PCF21XX, KS0073, KS0078, SSD1803
wim 30:033048611c01 1542 //The 4 available rows start at a hardcoded address.
wim 30:033048611c01 1543 //Displays top rows when less than four are used.
wim 30:033048611c01 1544 switch (row) {
wim 30:033048611c01 1545 case 0:
wim 30:033048611c01 1546 return 0x00 + column;
wim 30:033048611c01 1547 case 1:
wim 30:033048611c01 1548 return 0x20 + column;
wim 30:033048611c01 1549 case 2:
wim 30:033048611c01 1550 return 0x40 + column;
wim 30:033048611c01 1551 case 3:
wim 30:033048611c01 1552 return 0x60 + column;
wim 30:033048611c01 1553 // Should never get here.
wim 30:033048611c01 1554 default:
wim 30:033048611c01 1555 return 0x00;
wim 30:033048611c01 1556 }
wim 30:033048611c01 1557
wim 30:033048611c01 1558 case LCD_T_D1:
wim 36:9f5f86dfd44a 1559 //Alternate addressing mode for 3 row displays. Used by PCF21XX, KS0073, KS0078, SSD1803
wim 30:033048611c01 1560 //The 4 available rows start at a hardcoded address.
wim 30:033048611c01 1561 //Skips top row of 4 row display and starts display at row 1
wim 30:033048611c01 1562 switch (row) {
wim 30:033048611c01 1563 case 0:
wim 30:033048611c01 1564 return 0x20 + column;
wim 30:033048611c01 1565 case 1:
wim 30:033048611c01 1566 return 0x40 + column;
wim 30:033048611c01 1567 case 2:
wim 30:033048611c01 1568 return 0x60 + column;
wim 30:033048611c01 1569 // Should never get here.
wim 30:033048611c01 1570 default:
wim 30:033048611c01 1571 return 0x00;
wim 30:033048611c01 1572 }
wim 30:033048611c01 1573
wim 30:033048611c01 1574 case LCD_T_E:
wim 30:033048611c01 1575 // LCD40x4 is a special case since it has 2 controllers.
wim 30:033048611c01 1576 // Each controller is configured as 40x2 (Type A)
wim 30:033048611c01 1577 if (row<2) {
wim 30:033048611c01 1578 // Test to see if we need to switch between controllers
wim 30:033048611c01 1579 if (_ctrl_idx != _LCDCtrl_0) {
wim 30:033048611c01 1580
wim 30:033048611c01 1581 // Second LCD controller Cursor Off
wim 30:033048611c01 1582 _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim 30:033048611c01 1583
wim 30:033048611c01 1584 // Select primary controller
wim 30:033048611c01 1585 _ctrl_idx = _LCDCtrl_0;
wim 30:033048611c01 1586
wim 30:033048611c01 1587 // Restore cursormode on primary LCD controller
wim 30:033048611c01 1588 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 30:033048611c01 1589 }
wim 30:033048611c01 1590
wim 30:033048611c01 1591 return 0x00 + (row * 0x40) + column;
wim 30:033048611c01 1592 }
wim 30:033048611c01 1593 else {
wim 30:033048611c01 1594
wim 30:033048611c01 1595 // Test to see if we need to switch between controllers
wim 30:033048611c01 1596 if (_ctrl_idx != _LCDCtrl_1) {
wim 30:033048611c01 1597 // Primary LCD controller Cursor Off
wim 30:033048611c01 1598 _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim 30:033048611c01 1599
wim 30:033048611c01 1600 // Select secondary controller
wim 30:033048611c01 1601 _ctrl_idx = _LCDCtrl_1;
wim 30:033048611c01 1602
wim 30:033048611c01 1603 // Restore cursormode on secondary LCD controller
wim 30:033048611c01 1604 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 30:033048611c01 1605 }
wim 30:033048611c01 1606
wim 30:033048611c01 1607 return 0x00 + ((row-2) * 0x40) + column;
wim 30:033048611c01 1608 }
wim 30:033048611c01 1609
wim 32:59c4b8f648d4 1610 case LCD_T_F:
wim 32:59c4b8f648d4 1611 //Alternate addressing mode for 3 row displays.
wim 32:59c4b8f648d4 1612 //The first half of 3rd row continues from 1st row, the second half continues from 2nd row.
wim 32:59c4b8f648d4 1613 switch (row) {
wim 32:59c4b8f648d4 1614 case 0:
wim 32:59c4b8f648d4 1615 return 0x00 + column;
wim 32:59c4b8f648d4 1616 case 1:
wim 32:59c4b8f648d4 1617 return 0x40 + column;
wim 32:59c4b8f648d4 1618 case 2:
wim 32:59c4b8f648d4 1619 if (column < (_nr_cols >> 1)) // check first or second half of line
wim 32:59c4b8f648d4 1620 return (0x00 + _nr_cols + column);
wim 32:59c4b8f648d4 1621 else
wim 32:59c4b8f648d4 1622 return (0x40 + _nr_cols + (column - (_nr_cols >> 1)));
wim 32:59c4b8f648d4 1623 // Should never get here.
wim 32:59c4b8f648d4 1624 default:
wim 32:59c4b8f648d4 1625 return 0x00;
wim 32:59c4b8f648d4 1626 }
wim 32:59c4b8f648d4 1627
wim 32:59c4b8f648d4 1628 case LCD_T_G:
wim 32:59c4b8f648d4 1629 //Alternate addressing mode for 3 row displays. Used by ST7036
wim 32:59c4b8f648d4 1630 switch (row) {
wim 32:59c4b8f648d4 1631 case 0:
wim 32:59c4b8f648d4 1632 return 0x00 + column;
wim 32:59c4b8f648d4 1633 case 1:
wim 32:59c4b8f648d4 1634 return 0x10 + column;
wim 32:59c4b8f648d4 1635 case 2:
wim 32:59c4b8f648d4 1636 return 0x20 + column;
wim 32:59c4b8f648d4 1637 // Should never get here.
wim 32:59c4b8f648d4 1638 default:
wim 32:59c4b8f648d4 1639 return 0x00;
wim 32:59c4b8f648d4 1640 }
wim 32:59c4b8f648d4 1641
wim 30:033048611c01 1642 // Should never get here.
wim 30:033048611c01 1643 default:
wim 30:033048611c01 1644 return 0x00;
wim 32:59c4b8f648d4 1645
wim 32:59c4b8f648d4 1646 } // switch _addr_mode
wim 30:033048611c01 1647 }
wim 30:033048611c01 1648
wim 30:033048611c01 1649
wim 29:a3663151aa65 1650 /** Set the memoryaddress of screen column and row location
wim 29:a3663151aa65 1651 *
wim 29:a3663151aa65 1652 * @param column The horizontal position from the left, indexed from 0
wim 29:a3663151aa65 1653 * @param row The vertical position from the top, indexed from 0
wim 29:a3663151aa65 1654 */
wim 21:9eb628d9e164 1655 void TextLCD_Base::setAddress(int column, int row) {
wim 15:b70ebfffb258 1656
wim 15:b70ebfffb258 1657 // Sanity Check column
wim 15:b70ebfffb258 1658 if (column < 0) {
wim 15:b70ebfffb258 1659 _column = 0;
wim 15:b70ebfffb258 1660 }
wim 36:9f5f86dfd44a 1661 else if (column >= _nr_cols) {
wim 36:9f5f86dfd44a 1662 _column = _nr_cols - 1;
wim 15:b70ebfffb258 1663 } else _column = column;
wim 8:03116f75b66e 1664
wim 15:b70ebfffb258 1665 // Sanity Check row
wim 15:b70ebfffb258 1666 if (row < 0) {
wim 15:b70ebfffb258 1667 _row = 0;
wim 15:b70ebfffb258 1668 }
wim 36:9f5f86dfd44a 1669 else if (row >= _nr_rows) {
wim 36:9f5f86dfd44a 1670 _row = _nr_rows - 1;
wim 15:b70ebfffb258 1671 } else _row = row;
wim 15:b70ebfffb258 1672
wim 15:b70ebfffb258 1673
wim 15:b70ebfffb258 1674 // Compute the memory address
wim 15:b70ebfffb258 1675 // For LCD40x4: switch controllers if needed
wim 15:b70ebfffb258 1676 // switch cursor if needed
wim 15:b70ebfffb258 1677 int addr = getAddress(_column, _row);
wim 8:03116f75b66e 1678
wim 13:24506ba22480 1679 _writeCommand(0x80 | addr);
wim 8:03116f75b66e 1680 }
simon 1:ac48b187213c 1681
wim 29:a3663151aa65 1682
wim 29:a3663151aa65 1683 /** Return the number of columns
wim 29:a3663151aa65 1684 *
wim 36:9f5f86dfd44a 1685 * @return The number of columns
wim 30:033048611c01 1686 *
wim 30:033048611c01 1687 * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim 29:a3663151aa65 1688 */
wim 21:9eb628d9e164 1689 int TextLCD_Base::columns() {
wim 30:033048611c01 1690
wim 30:033048611c01 1691 // Columns encoded in b7..b0
wim 30:033048611c01 1692 //return (_type & 0xFF);
wim 31:ef31cd8a00d1 1693 return _nr_cols;
simon 1:ac48b187213c 1694 }
simon 1:ac48b187213c 1695
wim 29:a3663151aa65 1696 /** Return the number of rows
wim 29:a3663151aa65 1697 *
wim 36:9f5f86dfd44a 1698 * @return The number of rows
wim 30:033048611c01 1699 *
wim 30:033048611c01 1700 * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
wim 29:a3663151aa65 1701 */
wim 21:9eb628d9e164 1702 int TextLCD_Base::rows() {
wim 30:033048611c01 1703
wim 30:033048611c01 1704 // Rows encoded in b15..b8
wim 30:033048611c01 1705 //return ((_type >> 8) & 0xFF);
wim 30:033048611c01 1706 return _nr_rows;
simon 1:ac48b187213c 1707 }
wim 10:dd9b3a696acd 1708
wim 29:a3663151aa65 1709 /** Set the Cursormode
wim 29:a3663151aa65 1710 *
wim 29:a3663151aa65 1711 * @param cursorMode The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn)
wim 29:a3663151aa65 1712 */
wim 21:9eb628d9e164 1713 void TextLCD_Base::setCursor(LCDCursor cursorMode) {
wim 15:b70ebfffb258 1714
wim 17:652ab113bc2e 1715 // Save new cursor mode, needed when 2 controllers are in use or when display is switched off/on
wim 17:652ab113bc2e 1716 _currentCursor = cursorMode;
wim 10:dd9b3a696acd 1717
wim 17:652ab113bc2e 1718 // Configure only current LCD controller
wim 31:ef31cd8a00d1 1719 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 15:b70ebfffb258 1720 }
wim 15:b70ebfffb258 1721
wim 29:a3663151aa65 1722 /** Set the Displaymode
wim 29:a3663151aa65 1723 *
wim 29:a3663151aa65 1724 * @param displayMode The Display mode (DispOff, DispOn)
wim 29:a3663151aa65 1725 */
wim 21:9eb628d9e164 1726 void TextLCD_Base::setMode(LCDMode displayMode) {
wim 17:652ab113bc2e 1727
wim 17:652ab113bc2e 1728 // Save new displayMode, needed when 2 controllers are in use or when cursor is changed
wim 17:652ab113bc2e 1729 _currentMode = displayMode;
wim 15:b70ebfffb258 1730
wim 17:652ab113bc2e 1731 // Select and configure second LCD controller when needed
wim 17:652ab113bc2e 1732 if(_type==LCD40x4) {
wim 21:9eb628d9e164 1733 if (_ctrl_idx==_LCDCtrl_0) {
wim 17:652ab113bc2e 1734 // Configure primary LCD controller
wim 17:652ab113bc2e 1735 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 11:9ec02df863a1 1736
wim 17:652ab113bc2e 1737 // Select 2nd controller
wim 21:9eb628d9e164 1738 _ctrl_idx=_LCDCtrl_1;
wim 17:652ab113bc2e 1739
wim 17:652ab113bc2e 1740 // Configure secondary LCD controller
wim 21:9eb628d9e164 1741 _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim 11:9ec02df863a1 1742
wim 17:652ab113bc2e 1743 // Restore current controller
wim 21:9eb628d9e164 1744 _ctrl_idx=_LCDCtrl_0;
wim 17:652ab113bc2e 1745 }
wim 17:652ab113bc2e 1746 else {
wim 17:652ab113bc2e 1747 // Select primary controller
wim 21:9eb628d9e164 1748 _ctrl_idx=_LCDCtrl_0;
wim 17:652ab113bc2e 1749
wim 17:652ab113bc2e 1750 // Configure primary LCD controller
wim 21:9eb628d9e164 1751 _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff);
wim 17:652ab113bc2e 1752
wim 17:652ab113bc2e 1753 // Restore current controller
wim 21:9eb628d9e164 1754 _ctrl_idx=_LCDCtrl_1;
wim 11:9ec02df863a1 1755
wim 17:652ab113bc2e 1756 // Configure secondary LCD controller
wim 17:652ab113bc2e 1757 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 10:dd9b3a696acd 1758 }
wim 17:652ab113bc2e 1759 }
wim 17:652ab113bc2e 1760 else {
wim 17:652ab113bc2e 1761 // Configure primary LCD controller
wim 17:652ab113bc2e 1762 _setCursorAndDisplayMode(_currentMode, _currentCursor);
wim 30:033048611c01 1763 }
wim 17:652ab113bc2e 1764 }
wim 17:652ab113bc2e 1765
wim 29:a3663151aa65 1766 /** Low level method to restore the cursortype and display mode for current controller
wim 29:a3663151aa65 1767 */
wim 36:9f5f86dfd44a 1768 void TextLCD_Base::_setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType) {
wim 36:9f5f86dfd44a 1769
wim 36:9f5f86dfd44a 1770 // Configure current LCD controller
wim 36:9f5f86dfd44a 1771 switch (_ctrl) {
wim 36:9f5f86dfd44a 1772 case ST7070:
wim 36:9f5f86dfd44a 1773 //ST7070 does not support Cursorblink. The P bit selects the font instead !
wim 36:9f5f86dfd44a 1774 _writeCommand(0x08 | displayMode | (cursorType & 0x02));
wim 36:9f5f86dfd44a 1775 break;
wim 36:9f5f86dfd44a 1776 default:
wim 36:9f5f86dfd44a 1777 _writeCommand(0x08 | displayMode | cursorType);
wim 36:9f5f86dfd44a 1778 break;
wim 36:9f5f86dfd44a 1779 } //switch
wim 10:dd9b3a696acd 1780 }
wim 10:dd9b3a696acd 1781
wim 29:a3663151aa65 1782 /** Set the Backlight mode
wim 29:a3663151aa65 1783 *
wim 29:a3663151aa65 1784 * @param backlightMode The Backlight mode (LightOff, LightOn)
wim 29:a3663151aa65 1785 */
wim 21:9eb628d9e164 1786 void TextLCD_Base::setBacklight(LCDBacklight backlightMode) {
wim 20:e0da005a777f 1787
wim 35:311be6444a39 1788 #if (BACKLIGHT_INV==0)
wim 35:311be6444a39 1789 // Positive Backlight control pin logic
wim 20:e0da005a777f 1790 if (backlightMode == LightOn) {
wim 35:311be6444a39 1791 this->_setBL(true);
wim 20:e0da005a777f 1792 }
wim 20:e0da005a777f 1793 else {
wim 21:9eb628d9e164 1794 this->_setBL(false);
wim 20:e0da005a777f 1795 }
wim 35:311be6444a39 1796 #else
wim 35:311be6444a39 1797 // Inverted Backlight control pin logic
wim 35:311be6444a39 1798 if (backlightMode == LightOn) {
wim 35:311be6444a39 1799 this->_setBL(false);
wim 35:311be6444a39 1800 }
wim 35:311be6444a39 1801 else {
wim 35:311be6444a39 1802 this->_setBL(true);
wim 35:311be6444a39 1803 }
wim 35:311be6444a39 1804 #endif
wim 20:e0da005a777f 1805 }
wim 20:e0da005a777f 1806
wim 29:a3663151aa65 1807 /** Set User Defined Characters
wim 29:a3663151aa65 1808 *
wim 34:e5a0dcb43ecc 1809 * @param unsigned char c The Index of the UDC (0..7) for HD44780 or clones and (0..15) for some more advanced controllers
wim 34:e5a0dcb43ecc 1810 * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits for bitpattern and 3 bits for blinkmode (advanced types))
wim 29:a3663151aa65 1811 */
wim 21:9eb628d9e164 1812 void TextLCD_Base::setUDC(unsigned char c, char *udc_data) {
wim 15:b70ebfffb258 1813
wim 15:b70ebfffb258 1814 // Select and configure second LCD controller when needed
wim 15:b70ebfffb258 1815 if(_type==LCD40x4) {
wim 19:c747b9e2e7b8 1816 _LCDCtrl_Idx current_ctrl_idx = _ctrl_idx; // Temp save current controller
wim 15:b70ebfffb258 1817
wim 15:b70ebfffb258 1818 // Select primary controller
wim 21:9eb628d9e164 1819 _ctrl_idx=_LCDCtrl_0;
wim 15:b70ebfffb258 1820
wim 15:b70ebfffb258 1821 // Configure primary LCD controller
wim 15:b70ebfffb258 1822 _setUDC(c, udc_data);
wim 15:b70ebfffb258 1823
wim 15:b70ebfffb258 1824 // Select 2nd controller
wim 21:9eb628d9e164 1825 _ctrl_idx=_LCDCtrl_1;
wim 15:b70ebfffb258 1826
wim 15:b70ebfffb258 1827 // Configure secondary LCD controller
wim 15:b70ebfffb258 1828 _setUDC(c, udc_data);
wim 11:9ec02df863a1 1829
wim 15:b70ebfffb258 1830 // Restore current controller
wim 19:c747b9e2e7b8 1831 _ctrl_idx=current_ctrl_idx;
wim 15:b70ebfffb258 1832 }
wim 15:b70ebfffb258 1833 else {
wim 15:b70ebfffb258 1834 // Configure primary LCD controller
wim 15:b70ebfffb258 1835 _setUDC(c, udc_data);
wim 34:e5a0dcb43ecc 1836 }
wim 15:b70ebfffb258 1837 }
wim 15:b70ebfffb258 1838
wim 34:e5a0dcb43ecc 1839 /** Low level method to store user defined characters for current controller
wim 34:e5a0dcb43ecc 1840 *
wim 34:e5a0dcb43ecc 1841 * @param unsigned char c The Index of the UDC (0..7) for HD44780 clones and (0..15) for some more advanced controllers
wim 34:e5a0dcb43ecc 1842 * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits for bitpattern and 3 bits for blinkmode (advanced types))
wim 34:e5a0dcb43ecc 1843 */
wim 34:e5a0dcb43ecc 1844 void TextLCD_Base::_setUDC(unsigned char c, char *udc_data) {
wim 34:e5a0dcb43ecc 1845
wim 34:e5a0dcb43ecc 1846 switch (_ctrl) {
wim 34:e5a0dcb43ecc 1847 case PCF2103_3V3 : // Some UDCs may be used for Icons
wim 34:e5a0dcb43ecc 1848 case PCF2113_3V3 : // Some UDCs may be used for Icons
wim 34:e5a0dcb43ecc 1849 case PCF2116_3V3 :
wim 34:e5a0dcb43ecc 1850 case PCF2116_5V :
wim 34:e5a0dcb43ecc 1851 case PCF2119_3V3 : // Some UDCs may be used for Icons
wim 34:e5a0dcb43ecc 1852 c = c & 0x0F; // mask down to valid range
wim 34:e5a0dcb43ecc 1853 break;
wim 34:e5a0dcb43ecc 1854
wim 34:e5a0dcb43ecc 1855 default:
wim 34:e5a0dcb43ecc 1856 c = c & 0x07; // mask down to valid range
wim 34:e5a0dcb43ecc 1857 break;
wim 34:e5a0dcb43ecc 1858 } //switch _ctrl
wim 34:e5a0dcb43ecc 1859
wim 34:e5a0dcb43ecc 1860 // Select DD RAM for current LCD controller
wim 34:e5a0dcb43ecc 1861 // This is needed to correctly set Bit 6 of the addresspointer for controllers that support 16 UDCs
wim 34:e5a0dcb43ecc 1862 _writeCommand(0x80 | ((c << 3) & 0x40)) ;
wim 34:e5a0dcb43ecc 1863
wim 34:e5a0dcb43ecc 1864 // Select CG RAM for current LCD controller
wim 34:e5a0dcb43ecc 1865 _writeCommand(0x40 | ((c << 3) & 0x3F)); //Set CG-RAM address, (note that Bit 6 is retained and can not be set by this command !)
wim 34:e5a0dcb43ecc 1866 //8 sequential locations needed per UDC
wim 34:e5a0dcb43ecc 1867 // Store UDC pattern
wim 34:e5a0dcb43ecc 1868 for (int i=0; i<8; i++) {
wim 34:e5a0dcb43ecc 1869 _writeData(*udc_data++);
wim 34:e5a0dcb43ecc 1870 }
wim 34:e5a0dcb43ecc 1871
wim 34:e5a0dcb43ecc 1872 //Select DD RAM again for current LCD controller and restore the addresspointer
wim 34:e5a0dcb43ecc 1873 int addr = getAddress(_column, _row);
wim 34:e5a0dcb43ecc 1874 _writeCommand(0x80 | addr);
wim 34:e5a0dcb43ecc 1875 }
wim 32:59c4b8f648d4 1876
wim 36:9f5f86dfd44a 1877 /** Set UDC Blink and Icon blink
wim 33:900a94bc7585 1878 * setUDCBlink method is supported by some compatible devices (eg SSD1803)
wim 33:900a94bc7585 1879 *
wim 33:900a94bc7585 1880 * @param blinkMode The Blink mode (BlinkOff, BlinkOn)
wim 33:900a94bc7585 1881 */
wim 33:900a94bc7585 1882 void TextLCD_Base::setUDCBlink(LCDBlink blinkMode){
wim 36:9f5f86dfd44a 1883 // Blinking UDCs (and icons) are enabled when a specific controlbit (BE) is set.
wim 36:9f5f86dfd44a 1884 // The blinking pixels in the UDC and icons can be controlled by setting additional bits in the UDC or icon bitpattern.
wim 36:9f5f86dfd44a 1885 // UDCs are defined by an 8 byte bitpattern. The P0..P4 form the character pattern.
wim 33:900a94bc7585 1886 // P7 P6 P5 P4 P3 P2 P1 P0
wim 33:900a94bc7585 1887 // 0 B1 B0 x 0 1 1 1 0
wim 33:900a94bc7585 1888 // 1 B1 B0 x 1 0 0 0 1
wim 33:900a94bc7585 1889 // .............
wim 33:900a94bc7585 1890 // 7 B1 B0 x 1 0 0 0 1
wim 33:900a94bc7585 1891 //
wim 33:900a94bc7585 1892 // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
wim 33:900a94bc7585 1893 // B1 B0 Mode
wim 33:900a94bc7585 1894 // 0 0 No Blinking in this row of the UDC
wim 33:900a94bc7585 1895 // 0 1 Enabled pixels in P4 will blink
wim 33:900a94bc7585 1896 // 1 x Enabled pixels in P0..P4 will blink
wim 36:9f5f86dfd44a 1897 //
wim 36:9f5f86dfd44a 1898 // Note: the PCF2103 and PCF2113 use UDCs to set Icons
wim 36:9f5f86dfd44a 1899 // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
wim 36:9f5f86dfd44a 1900 // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
wim 36:9f5f86dfd44a 1901 // Note: the PCF2119 uses UDCs to set Icons
wim 36:9f5f86dfd44a 1902 // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
wim 36:9f5f86dfd44a 1903 // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
wim 33:900a94bc7585 1904 switch (blinkMode) {
wim 33:900a94bc7585 1905 case BlinkOn:
wim 36:9f5f86dfd44a 1906 // Controllers that support UDC/Icon Blink
wim 33:900a94bc7585 1907 switch (_ctrl) {
wim 36:9f5f86dfd44a 1908 case KS0073 :
wim 33:900a94bc7585 1909 case KS0078 :
wim 36:9f5f86dfd44a 1910 _function_1 |= 0x02; // Enable UDC/Icon Blink
wim 36:9f5f86dfd44a 1911 _writeCommand(0x20 | _function_1); // Function set 0 0 1 DL N RE(1) BE 0/LP (Ext Regs)
wim 33:900a94bc7585 1912
wim 33:900a94bc7585 1913 _writeCommand(0x20 | _function); // Function set 0 0 1 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 1914 break; // case KS0073, KS0078 Controller
wim 33:900a94bc7585 1915
wim 33:900a94bc7585 1916 case US2066_3V3 :
wim 33:900a94bc7585 1917 case SSD1803_3V3 :
wim 36:9f5f86dfd44a 1918 _function_1 |= 0x04; // Enable UDC/Icon Blink
wim 33:900a94bc7585 1919 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
wim 33:900a94bc7585 1920 // Select Ext Instr Set
wim 33:900a94bc7585 1921
wim 33:900a94bc7585 1922 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 33:900a94bc7585 1923 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 1924 break; // case SSD1803, US2066
wim 36:9f5f86dfd44a 1925
wim 36:9f5f86dfd44a 1926 case PCF2103_3V3 :
wim 36:9f5f86dfd44a 1927 case PCF2113_3V3 :
wim 36:9f5f86dfd44a 1928 case PCF2119_3V3 :
wim 36:9f5f86dfd44a 1929 // Enable Icon Blink
wim 36:9f5f86dfd44a 1930 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 36:9f5f86dfd44a 1931 _writeCommand(0x08 | 0x02); // ICON Conf 0000 1, IM=0 (Char mode), IB=1 (Icon blink), 0 (Instr. Set 1)
wim 36:9f5f86dfd44a 1932 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 36:9f5f86dfd44a 1933
wim 36:9f5f86dfd44a 1934 break;
wim 33:900a94bc7585 1935
wim 33:900a94bc7585 1936 default:
wim 33:900a94bc7585 1937 //Unsupported feature for other controllers
wim 33:900a94bc7585 1938 break;
wim 33:900a94bc7585 1939 } //switch _ctrl
wim 33:900a94bc7585 1940
wim 36:9f5f86dfd44a 1941 break; // BlinkOn
wim 33:900a94bc7585 1942
wim 33:900a94bc7585 1943 case BlinkOff:
wim 33:900a94bc7585 1944 // Controllers that support UDC Blink
wim 33:900a94bc7585 1945 switch (_ctrl) {
wim 36:9f5f86dfd44a 1946 case KS0073 :
wim 33:900a94bc7585 1947 case KS0078 :
wim 36:9f5f86dfd44a 1948 _function_1 &= ~0x02; // Disable UDC/Icon Blink
wim 36:9f5f86dfd44a 1949 _writeCommand(0x20 | _function_1); // Function set 0 0 1 DL N RE(1) BE 0/LP (Ext Regs)
wim 33:900a94bc7585 1950
wim 33:900a94bc7585 1951 _writeCommand(0x20 | _function); // Function set 0 0 1 DL N RE(0) DH REV (Std Regs)
wim 36:9f5f86dfd44a 1952 break; // case KS0073, KS0078 Controller
wim 33:900a94bc7585 1953
wim 33:900a94bc7585 1954 case US2066_3V3 :
wim 33:900a94bc7585 1955 case SSD1803_3V3 :
wim 36:9f5f86dfd44a 1956 _function_1 &= ~0x04; // Disable UDC/Icon Blink
wim 33:900a94bc7585 1957 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
wim 33:900a94bc7585 1958 // Select Ext Instr Set
wim 33:900a94bc7585 1959
wim 33:900a94bc7585 1960 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 33:900a94bc7585 1961 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 1962 break; // case SSD1803, US2066
wim 36:9f5f86dfd44a 1963
wim 36:9f5f86dfd44a 1964 case PCF2103_3V3 :
wim 36:9f5f86dfd44a 1965 case PCF2113_3V3 :
wim 36:9f5f86dfd44a 1966 case PCF2119_3V3 :
wim 36:9f5f86dfd44a 1967 // Disable Icon Blink
wim 36:9f5f86dfd44a 1968 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 36:9f5f86dfd44a 1969 _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=1 (Icon blink), 0 (Instr. Set 1)
wim 36:9f5f86dfd44a 1970 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 36:9f5f86dfd44a 1971
wim 36:9f5f86dfd44a 1972 break;
wim 33:900a94bc7585 1973
wim 33:900a94bc7585 1974 default:
wim 33:900a94bc7585 1975 //Unsupported feature for other controllers
wim 33:900a94bc7585 1976 break;
wim 33:900a94bc7585 1977 } //switch _ctrl
wim 33:900a94bc7585 1978
wim 36:9f5f86dfd44a 1979 break; //BlinkOff
wim 33:900a94bc7585 1980
wim 33:900a94bc7585 1981 default:
wim 33:900a94bc7585 1982 break;
wim 33:900a94bc7585 1983 } // blinkMode
wim 33:900a94bc7585 1984
wim 33:900a94bc7585 1985 } // setUDCBlink()
wim 33:900a94bc7585 1986
wim 33:900a94bc7585 1987
wim 32:59c4b8f648d4 1988 /** Set Contrast
wim 32:59c4b8f648d4 1989 * setContrast method is supported by some compatible devices (eg ST7032i) that have onboard LCD voltage generation
wim 32:59c4b8f648d4 1990 * Initial code for ST70XX imported from fork by JH1PJL
wim 32:59c4b8f648d4 1991 *
wim 32:59c4b8f648d4 1992 * @param unsigned char c contrast data (6 significant bits, valid range 0..63, Value 0 will disable the Vgen)
wim 32:59c4b8f648d4 1993 * @return none
wim 32:59c4b8f648d4 1994 */
wim 32:59c4b8f648d4 1995 //@TODO Add support for 40x4 dual controller
wim 32:59c4b8f648d4 1996 void TextLCD_Base::setContrast(unsigned char c) {
wim 32:59c4b8f648d4 1997
wim 32:59c4b8f648d4 1998 // Function set mode stored during Init. Make sure we dont accidentally switch between 1-line and 2-line mode!
wim 32:59c4b8f648d4 1999 // Icon/Booster mode stored during Init. Make sure we dont accidentally change this!
wim 32:59c4b8f648d4 2000
wim 32:59c4b8f648d4 2001 _contrast = c & 0x3F; // Sanity check
wim 32:59c4b8f648d4 2002
wim 33:900a94bc7585 2003 switch (_ctrl) {
wim 32:59c4b8f648d4 2004 case PCF2113_3V3 :
wim 32:59c4b8f648d4 2005 case PCF2119_3V3 :
wim 32:59c4b8f648d4 2006 if (_contrast < 5) _contrast = 0; // See datasheet. Sanity check for PCF2113/PCF2119
wim 32:59c4b8f648d4 2007 if (_contrast > 55) _contrast = 55;
wim 32:59c4b8f648d4 2008
wim 32:59c4b8f648d4 2009 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1
wim 32:59c4b8f648d4 2010 _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast
wim 32:59c4b8f648d4 2011 _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast
wim 32:59c4b8f648d4 2012 _writeCommand(0x20 | _function); // Select Instruction Set = 0
wim 32:59c4b8f648d4 2013 break;
wim 32:59c4b8f648d4 2014
wim 32:59c4b8f648d4 2015 case ST7032_3V3 :
wim 32:59c4b8f648d4 2016 case ST7032_5V :
wim 32:59c4b8f648d4 2017 case ST7036_3V3 :
wim 32:59c4b8f648d4 2018 // case ST7036_5V :
wim 32:59c4b8f648d4 2019 case SSD1803_3V3 :
wim 32:59c4b8f648d4 2020 _writeCommand(0x20 | _function | 0x01); // Select Instruction Set = 1
wim 32:59c4b8f648d4 2021 _writeCommand(0x70 | (_contrast & 0x0F)); // Contrast Low bits
wim 32:59c4b8f648d4 2022 _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Contrast High bits
wim 32:59c4b8f648d4 2023 _writeCommand(0x20 | _function); // Select Instruction Set = 0
wim 32:59c4b8f648d4 2024 break;
wim 32:59c4b8f648d4 2025
wim 33:900a94bc7585 2026 case US2066_3V3 :
wim 33:900a94bc7585 2027 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
wim 33:900a94bc7585 2028 // Select Extended Instruction Set
wim 33:900a94bc7585 2029
wim 33:900a94bc7585 2030 _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
wim 33:900a94bc7585 2031
wim 33:900a94bc7585 2032 _writeCommand(0x81); // Set Contrast Control: 1 0 0 0 0 0 0 1 (Ext Instr Set, OLED)
wim 33:900a94bc7585 2033 _writeCommand((_contrast << 2) | 0x03); // Set Contrast Value: 8 bits. Use 6 bits for compatibility
wim 33:900a94bc7585 2034
wim 33:900a94bc7585 2035 _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
wim 33:900a94bc7585 2036
wim 33:900a94bc7585 2037 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 33:900a94bc7585 2038 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 2039 break;
wim 33:900a94bc7585 2040
wim 34:e5a0dcb43ecc 2041 //not yet tested on hardware
wim 32:59c4b8f648d4 2042 case PT6314 :
wim 32:59c4b8f648d4 2043 // Only 2 significant bits
wim 32:59c4b8f648d4 2044 // 0x00 = 100%
wim 32:59c4b8f648d4 2045 // 0x01 = 75%
wim 32:59c4b8f648d4 2046 // 0x02 = 50%
wim 32:59c4b8f648d4 2047 // 0x03 = 25%
wim 32:59c4b8f648d4 2048 _writeCommand(0x20 | _function | ((~_contrast) >> 4)); // Invert and shift to use 2 MSBs
wim 32:59c4b8f648d4 2049 break;
wim 32:59c4b8f648d4 2050
wim 32:59c4b8f648d4 2051 default:
wim 32:59c4b8f648d4 2052 //Unsupported feature for other controllers
wim 33:900a94bc7585 2053 break;
wim 33:900a94bc7585 2054 } // end switch
wim 33:900a94bc7585 2055 } // end setContrast()
wim 32:59c4b8f648d4 2056
wim 32:59c4b8f648d4 2057
wim 32:59c4b8f648d4 2058 /** Set Power
wim 32:59c4b8f648d4 2059 * setPower method is supported by some compatible devices (eg SSD1803) that have power down modes
wim 32:59c4b8f648d4 2060 *
wim 32:59c4b8f648d4 2061 * @param bool powerOn Power on/off
wim 32:59c4b8f648d4 2062 * @return none
wim 32:59c4b8f648d4 2063 */
wim 32:59c4b8f648d4 2064 //@TODO Add support for 40x4 dual controller
wim 32:59c4b8f648d4 2065 void TextLCD_Base::setPower(bool powerOn) {
wim 32:59c4b8f648d4 2066
wim 32:59c4b8f648d4 2067 if (powerOn) {
wim 32:59c4b8f648d4 2068 // Switch on
wim 32:59c4b8f648d4 2069 setMode(DispOn);
wim 32:59c4b8f648d4 2070
wim 32:59c4b8f648d4 2071 // Controllers that supports specific Power Down mode
wim 32:59c4b8f648d4 2072 switch (_ctrl) {
wim 32:59c4b8f648d4 2073
wim 32:59c4b8f648d4 2074 // case PCF2113_3V3 :
wim 32:59c4b8f648d4 2075 // case PCF2119_3V3 :
wim 32:59c4b8f648d4 2076 // case ST7032_3V3 :
wim 32:59c4b8f648d4 2077 //@todo
wim 33:900a94bc7585 2078 // enable Booster Bon
wim 33:900a94bc7585 2079
wim 33:900a94bc7585 2080 case WS0010:
wim 33:900a94bc7585 2081 _writeCommand(0x17); // Char mode, DC/DC on
wim 33:900a94bc7585 2082 wait_ms(10); // Wait 10ms to ensure powered up
wim 33:900a94bc7585 2083 break;
wim 33:900a94bc7585 2084
wim 36:9f5f86dfd44a 2085 case KS0073:
wim 33:900a94bc7585 2086 case KS0078:
wim 32:59c4b8f648d4 2087 case SSD1803_3V3 :
wim 32:59c4b8f648d4 2088 // case SSD1803_5V :
wim 33:900a94bc7585 2089 _writeCommand(0x20 | _function_1); // Select Ext Instr Set
wim 33:900a94bc7585 2090 _writeCommand(0x02); // Power On
wim 32:59c4b8f648d4 2091 _writeCommand(0x20 | _function); // Select Std Instr Set
wim 32:59c4b8f648d4 2092 break;
wim 32:59c4b8f648d4 2093
wim 32:59c4b8f648d4 2094 default:
wim 32:59c4b8f648d4 2095 //Unsupported feature for other controllers
wim 32:59c4b8f648d4 2096 break;
wim 32:59c4b8f648d4 2097 } // end switch
wim 32:59c4b8f648d4 2098 }
wim 32:59c4b8f648d4 2099 else {
wim 32:59c4b8f648d4 2100 // Switch off
wim 32:59c4b8f648d4 2101 setMode(DispOff);
wim 32:59c4b8f648d4 2102
wim 32:59c4b8f648d4 2103 // Controllers that support specific Power Down mode
wim 32:59c4b8f648d4 2104 switch (_ctrl) {
wim 32:59c4b8f648d4 2105
wim 32:59c4b8f648d4 2106 // case PCF2113_3V3 :
wim 32:59c4b8f648d4 2107 // case PCF2119_3V3 :
wim 32:59c4b8f648d4 2108 // case ST7032_3V3 :
wim 32:59c4b8f648d4 2109 //@todo
wim 33:900a94bc7585 2110 // disable Booster Bon
wim 33:900a94bc7585 2111
wim 33:900a94bc7585 2112 case WS0010:
wim 33:900a94bc7585 2113 _writeCommand(0x13); // Char mode, DC/DC off
wim 33:900a94bc7585 2114 break;
wim 33:900a94bc7585 2115
wim 36:9f5f86dfd44a 2116 case KS0073:
wim 33:900a94bc7585 2117 case KS0078:
wim 32:59c4b8f648d4 2118 case SSD1803_3V3 :
wim 32:59c4b8f648d4 2119 // case SSD1803_5V :
wim 33:900a94bc7585 2120 _writeCommand(0x20 | _function_1); // Select Ext Instr Set
wim 33:900a94bc7585 2121 _writeCommand(0x03); // Power Down
wim 32:59c4b8f648d4 2122 _writeCommand(0x20 | _function); // Select Std Instr Set
wim 32:59c4b8f648d4 2123 break;
wim 32:59c4b8f648d4 2124
wim 32:59c4b8f648d4 2125 default:
wim 32:59c4b8f648d4 2126 //Unsupported feature for other controllers
wim 32:59c4b8f648d4 2127 break;
wim 32:59c4b8f648d4 2128 } // end switch
wim 32:59c4b8f648d4 2129 }
wim 33:900a94bc7585 2130 } // end setPower()
wim 33:900a94bc7585 2131
wim 33:900a94bc7585 2132
wim 33:900a94bc7585 2133 /** Set Orient
wim 33:900a94bc7585 2134 * setOrient method is supported by some compatible devices (eg SSD1803, US2066) that have top/bottom view modes
wim 33:900a94bc7585 2135 *
wim 33:900a94bc7585 2136 * @param LCDOrient orient Orientation
wim 33:900a94bc7585 2137 * @return none
wim 33:900a94bc7585 2138 */
wim 33:900a94bc7585 2139 void TextLCD_Base::setOrient(LCDOrient orient){
wim 33:900a94bc7585 2140
wim 33:900a94bc7585 2141 switch (orient) {
wim 33:900a94bc7585 2142
wim 33:900a94bc7585 2143 case Top:
wim 33:900a94bc7585 2144 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2145 case PCF2103_3V3:
wim 34:e5a0dcb43ecc 2146 case PCF2116_3V3:
wim 34:e5a0dcb43ecc 2147 case PCF2116_5V:
wim 34:e5a0dcb43ecc 2148 case PCF2119_3V3:
wim 34:e5a0dcb43ecc 2149 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 34:e5a0dcb43ecc 2150 _writeCommand(0x05); // Display Conf Set 0000 0, 1, P=0, Q=1 (Instr. Set 1)
wim 34:e5a0dcb43ecc 2151 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 34:e5a0dcb43ecc 2152 break;
wim 34:e5a0dcb43ecc 2153
wim 33:900a94bc7585 2154 case SSD1803_3V3 :
wim 33:900a94bc7585 2155 // case SSD1803_5V :
wim 33:900a94bc7585 2156 case US2066_3V3 :
wim 33:900a94bc7585 2157 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 2158 // Select Extended Instruction Set
wim 33:900a94bc7585 2159 // _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
wim 33:900a94bc7585 2160 _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
wim 33:900a94bc7585 2161
wim 33:900a94bc7585 2162 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 33:900a94bc7585 2163 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 2164 break;
wim 36:9f5f86dfd44a 2165
wim 36:9f5f86dfd44a 2166 case ST7070:
wim 36:9f5f86dfd44a 2167 _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL, N, EXT=1, x, x (Select Instr Set = 1)
wim 36:9f5f86dfd44a 2168
wim 36:9f5f86dfd44a 2169 _writeCommand(0x40 | 0x00); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
wim 36:9f5f86dfd44a 2170 // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
wim 36:9f5f86dfd44a 2171 // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
wim 36:9f5f86dfd44a 2172 wait_ms(5); // Wait to ensure completion or ST7070 fails to set Top/Bottom after reset..
wim 36:9f5f86dfd44a 2173
wim 36:9f5f86dfd44a 2174 _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
wim 36:9f5f86dfd44a 2175
wim 36:9f5f86dfd44a 2176 break; // case ST7070 Controller
wim 33:900a94bc7585 2177
wim 33:900a94bc7585 2178 default:
wim 33:900a94bc7585 2179 //Unsupported feature for other controllers
wim 33:900a94bc7585 2180 break;
wim 33:900a94bc7585 2181
wim 33:900a94bc7585 2182 } // end switch _ctrl
wim 33:900a94bc7585 2183 break; // end Top
wim 33:900a94bc7585 2184
wim 33:900a94bc7585 2185 case Bottom:
wim 33:900a94bc7585 2186 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2187 case PCF2103_3V3:
wim 34:e5a0dcb43ecc 2188 case PCF2116_3V3:
wim 34:e5a0dcb43ecc 2189 case PCF2116_5V:
wim 34:e5a0dcb43ecc 2190 case PCF2119_3V3:
wim 34:e5a0dcb43ecc 2191 _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
wim 34:e5a0dcb43ecc 2192 _writeCommand(0x06); // Display Conf Set 0000 0, 1, P=1, Q=0 (Instr. Set 1)
wim 34:e5a0dcb43ecc 2193 _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
wim 34:e5a0dcb43ecc 2194 break;
wim 34:e5a0dcb43ecc 2195
wim 33:900a94bc7585 2196 case SSD1803_3V3 :
wim 33:900a94bc7585 2197 // case SSD1803_5V :
wim 33:900a94bc7585 2198 case US2066_3V3 :
wim 33:900a94bc7585 2199 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 33:900a94bc7585 2200 // Select Extended Instruction Set
wim 33:900a94bc7585 2201 _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
wim 33:900a94bc7585 2202 // _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
wim 33:900a94bc7585 2203
wim 33:900a94bc7585 2204 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 33:900a94bc7585 2205 // Select Std Instr set, Select IS=0
wim 33:900a94bc7585 2206 break;
wim 36:9f5f86dfd44a 2207
wim 36:9f5f86dfd44a 2208 case ST7070:
wim 36:9f5f86dfd44a 2209 //Note: this does not result in correct top/bottom view.
wim 36:9f5f86dfd44a 2210 //The left and right half of each row are reversed and the addressing of both rows is also incorrect:
wim 36:9f5f86dfd44a 2211 //Top/bottomline when orientation is flipped:
wim 36:9f5f86dfd44a 2212 // 0x48...0x4F 0x40...0x47
wim 36:9f5f86dfd44a 2213 // 0x08...0x0F 0x00...0x07
wim 36:9f5f86dfd44a 2214 _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1)
wim 36:9f5f86dfd44a 2215
wim 36:9f5f86dfd44a 2216 _writeCommand(0x40 | 0x0F); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
wim 36:9f5f86dfd44a 2217 // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
wim 36:9f5f86dfd44a 2218 // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
wim 36:9f5f86dfd44a 2219 wait_ms(5); // Wait to ensure completion or ST7070 fails to set Top/Bottom after reset..
wim 36:9f5f86dfd44a 2220
wim 36:9f5f86dfd44a 2221 _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
wim 36:9f5f86dfd44a 2222
wim 36:9f5f86dfd44a 2223 break; // case ST7070 Controller
wim 33:900a94bc7585 2224
wim 33:900a94bc7585 2225 default:
wim 33:900a94bc7585 2226 //Unsupported feature for other controllers
wim 33:900a94bc7585 2227 break;
wim 33:900a94bc7585 2228
wim 33:900a94bc7585 2229 } // end switch _ctrl
wim 33:900a94bc7585 2230
wim 33:900a94bc7585 2231 break; // end Bottom
wim 33:900a94bc7585 2232 } // end switch orient
wim 33:900a94bc7585 2233 } // end setOrient()
wim 33:900a94bc7585 2234
wim 34:e5a0dcb43ecc 2235 /** Set Big Font
wim 34:e5a0dcb43ecc 2236 * setBigFont method is supported by some compatible devices (eg SSD1803, US2066)
wim 34:e5a0dcb43ecc 2237 *
wim 34:e5a0dcb43ecc 2238 * @param lines The selected Big Font lines (None, TopLine, CenterLine, BottomLine, TopBottomLine)
wim 34:e5a0dcb43ecc 2239 * Double height characters can be shown on lines 1+2, 2+3, 3+4 or 1+2 and 3+4
wim 34:e5a0dcb43ecc 2240 * Valid double height lines depend on the LCDs number of rows.
wim 34:e5a0dcb43ecc 2241 */
wim 34:e5a0dcb43ecc 2242 void TextLCD_Base::setBigFont(LCDBigFont lines) {
wim 34:e5a0dcb43ecc 2243
wim 34:e5a0dcb43ecc 2244 switch (lines) {
wim 34:e5a0dcb43ecc 2245 case None:
wim 34:e5a0dcb43ecc 2246 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2247 case SSD1803_3V3 :
wim 34:e5a0dcb43ecc 2248 case US2066_3V3 :
wim 34:e5a0dcb43ecc 2249 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 34:e5a0dcb43ecc 2250 // Select Extended Instruction Set
wim 34:e5a0dcb43ecc 2251 _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2252 // Default
wim 34:e5a0dcb43ecc 2253 _function = _function & ~0x04; // Set function, 0 0 1 DL N DH=0 RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2254 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2255 // Select Std Instr set, Select IS=0
wim 34:e5a0dcb43ecc 2256 break; // end US2066
wim 34:e5a0dcb43ecc 2257
wim 34:e5a0dcb43ecc 2258 default:
wim 34:e5a0dcb43ecc 2259 break; // end default
wim 34:e5a0dcb43ecc 2260 } // end switch _ctrl
wim 34:e5a0dcb43ecc 2261 break; // end None
wim 34:e5a0dcb43ecc 2262
wim 34:e5a0dcb43ecc 2263 case TopLine:
wim 34:e5a0dcb43ecc 2264 if (_nr_rows < 2) return; //Sanity check
wim 34:e5a0dcb43ecc 2265
wim 34:e5a0dcb43ecc 2266 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2267 case SSD1803_3V3 :
wim 34:e5a0dcb43ecc 2268 case US2066_3V3 :
wim 34:e5a0dcb43ecc 2269 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 34:e5a0dcb43ecc 2270 // Select Extended Instruction Set
wim 34:e5a0dcb43ecc 2271 _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2272 // Default
wim 34:e5a0dcb43ecc 2273 _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2274 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2275 // Select Std Instr set, Select IS=0
wim 34:e5a0dcb43ecc 2276 break; // end US2066, SSD1803
wim 34:e5a0dcb43ecc 2277
wim 34:e5a0dcb43ecc 2278 default:
wim 34:e5a0dcb43ecc 2279 break; // end default
wim 34:e5a0dcb43ecc 2280 } // end switch _ctrl
wim 34:e5a0dcb43ecc 2281 break; // end TopLine
wim 34:e5a0dcb43ecc 2282
wim 34:e5a0dcb43ecc 2283 case CenterLine:
wim 34:e5a0dcb43ecc 2284 if (_nr_rows != 4) return; //Sanity check
wim 34:e5a0dcb43ecc 2285
wim 34:e5a0dcb43ecc 2286 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2287 case SSD1803_3V3 :
wim 34:e5a0dcb43ecc 2288 case US2066_3V3 :
wim 34:e5a0dcb43ecc 2289 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 34:e5a0dcb43ecc 2290 // Select Extended Instruction Set
wim 34:e5a0dcb43ecc 2291 _writeCommand(0x14); // Double Height, 0 0 0 1 UD2=0, UD1=1, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2292 // Default
wim 34:e5a0dcb43ecc 2293 _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2294 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2295 // Select Std Instr set, Select IS=0
wim 34:e5a0dcb43ecc 2296 break; // end US2066, SSD1803
wim 34:e5a0dcb43ecc 2297
wim 34:e5a0dcb43ecc 2298 default:
wim 34:e5a0dcb43ecc 2299 break; // end default
wim 34:e5a0dcb43ecc 2300 } // end switch _ctrl
wim 34:e5a0dcb43ecc 2301 break; // end CenterLine
wim 34:e5a0dcb43ecc 2302
wim 34:e5a0dcb43ecc 2303 case BottomLine:
wim 34:e5a0dcb43ecc 2304 if (_nr_rows < 3) return; //Sanity check
wim 34:e5a0dcb43ecc 2305
wim 34:e5a0dcb43ecc 2306 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2307 case SSD1803_3V3 :
wim 34:e5a0dcb43ecc 2308 case US2066_3V3 :
wim 34:e5a0dcb43ecc 2309 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 34:e5a0dcb43ecc 2310 // Select Extended Instruction Set
wim 34:e5a0dcb43ecc 2311 if (_nr_rows == 3) {
wim 34:e5a0dcb43ecc 2312 _writeCommand(0x14); // Double Height, 0 0 0 1 UD2=0, UD1=1, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2313 }
wim 34:e5a0dcb43ecc 2314 else {
wim 34:e5a0dcb43ecc 2315 _writeCommand(0x10); // Double Height, 0 0 0 1 UD2=0, UD1=0, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2316 }
wim 34:e5a0dcb43ecc 2317 _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2318 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2319 // Select Std Instr set, Select IS=0
wim 34:e5a0dcb43ecc 2320 break; // end US2066, SSD1803
wim 34:e5a0dcb43ecc 2321
wim 34:e5a0dcb43ecc 2322 default:
wim 34:e5a0dcb43ecc 2323 break; // end default
wim 34:e5a0dcb43ecc 2324 } // end switch _ctrl
wim 34:e5a0dcb43ecc 2325 break; // end BottomLine
wim 34:e5a0dcb43ecc 2326
wim 34:e5a0dcb43ecc 2327 case TopBottomLine:
wim 34:e5a0dcb43ecc 2328 if (_nr_rows != 4) return; //Sanity check
wim 34:e5a0dcb43ecc 2329
wim 34:e5a0dcb43ecc 2330 switch (_ctrl) {
wim 34:e5a0dcb43ecc 2331 case SSD1803_3V3 :
wim 34:e5a0dcb43ecc 2332 case US2066_3V3 :
wim 34:e5a0dcb43ecc 2333 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
wim 34:e5a0dcb43ecc 2334 // Select Extended Instruction Set
wim 34:e5a0dcb43ecc 2335 _writeCommand(0x18); // Double Height, 0 0 0 1 UD2=1, UD1=0, X, DH'=0 (Ext Instr Set)
wim 34:e5a0dcb43ecc 2336 // Default
wim 34:e5a0dcb43ecc 2337 _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2338 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
wim 34:e5a0dcb43ecc 2339 // Select Std Instr set, Select IS=0
wim 34:e5a0dcb43ecc 2340 break; // end US2066, SSD1803
wim 34:e5a0dcb43ecc 2341
wim 34:e5a0dcb43ecc 2342 default:
wim 34:e5a0dcb43ecc 2343 break; // end default
wim 34:e5a0dcb43ecc 2344 } // end switch _ctrl
wim 34:e5a0dcb43ecc 2345 break; // end TopBottomLine
wim 34:e5a0dcb43ecc 2346
wim 34:e5a0dcb43ecc 2347 } // end switch lines
wim 34:e5a0dcb43ecc 2348
wim 34:e5a0dcb43ecc 2349 } // end setBigFont()
wim 32:59c4b8f648d4 2350
wim 36:9f5f86dfd44a 2351
wim 36:9f5f86dfd44a 2352 /** Set Icons
wim 36:9f5f86dfd44a 2353 *
wim 36:9f5f86dfd44a 2354 * @param unsigned char idx The Index of the icon pattern (0..15) for KS0073 and similar controllers
wim 36:9f5f86dfd44a 2355 * and Index (0..31) for PCF2103 and similar controllers
wim 36:9f5f86dfd44a 2356 * @param unsigned char data The bitpattern for the icons (6 lsb for KS0073 bitpattern (5 lsb for KS0078) and 2 msb for blinkmode)
wim 36:9f5f86dfd44a 2357 * The bitpattern for the PCF2103 icons is 5 lsb (UDC 0..2) and 5 lsb for blinkmode (UDC 4..6)
wim 36:9f5f86dfd44a 2358 */
wim 36:9f5f86dfd44a 2359 void TextLCD_Base::setIcon(unsigned char idx, unsigned char data) {
wim 36:9f5f86dfd44a 2360 // Blinking icons are enabled when a specific controlbit (BE) is set.
wim 36:9f5f86dfd44a 2361 // The blinking pixels in the icons can be controlled by setting additional bits in the icon bitpattern.
wim 36:9f5f86dfd44a 2362 // Icons are defined by a byte bitpattern. The P0..P5 form the Icon pattern for KS0073, and P0..P4 for KS0078
wim 36:9f5f86dfd44a 2363 // P7 P6 P5 P4 P3 P2 P1 P0
wim 36:9f5f86dfd44a 2364 // 0 B1 B0 0 0 1 1 1 0
wim 36:9f5f86dfd44a 2365 // 1 B1 B0 1 1 0 0 0 1
wim 36:9f5f86dfd44a 2366 // .............
wim 36:9f5f86dfd44a 2367 // 15 B1 B0 1 1 0 0 0 1
wim 36:9f5f86dfd44a 2368 //
wim 36:9f5f86dfd44a 2369 // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
wim 36:9f5f86dfd44a 2370 // B1 B0 Mode
wim 36:9f5f86dfd44a 2371 // 0 0 No Blinking for this icon row
wim 36:9f5f86dfd44a 2372 // 0 1 Enabled pixels in P5 will blink
wim 36:9f5f86dfd44a 2373 // 1 x Enabled pixels in P0..P5 will blink
wim 36:9f5f86dfd44a 2374 //
wim 36:9f5f86dfd44a 2375 // Note: the PCF2103 and PCF2113 use UDCs to set Icons
wim 36:9f5f86dfd44a 2376 // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
wim 36:9f5f86dfd44a 2377 // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
wim 36:9f5f86dfd44a 2378 // Note: the PCF2119 uses UDCs to set Icons
wim 36:9f5f86dfd44a 2379 // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
wim 36:9f5f86dfd44a 2380 // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
wim 36:9f5f86dfd44a 2381
wim 36:9f5f86dfd44a 2382 switch (_ctrl) {
wim 36:9f5f86dfd44a 2383 case KS0073:
wim 36:9f5f86dfd44a 2384 case KS0078:
wim 36:9f5f86dfd44a 2385 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N RE(1) BE LP
wim 36:9f5f86dfd44a 2386 // Select Extended Instruction Set
wim 36:9f5f86dfd44a 2387 _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Ext Instr Set)
wim 36:9f5f86dfd44a 2388
wim 36:9f5f86dfd44a 2389 _writeData(data); // Set Icon pattern (Ext Instr Set)
wim 36:9f5f86dfd44a 2390
wim 36:9f5f86dfd44a 2391 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
wim 36:9f5f86dfd44a 2392 // Select Std Instr set, Select IS=0
wim 36:9f5f86dfd44a 2393 break; // end KS0073, KS0078
wim 36:9f5f86dfd44a 2394
wim 36:9f5f86dfd44a 2395 case ST7032_3V3:
wim 36:9f5f86dfd44a 2396 case ST7032_5V:
wim 36:9f5f86dfd44a 2397 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
wim 36:9f5f86dfd44a 2398 _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set 1)
wim 36:9f5f86dfd44a 2399
wim 36:9f5f86dfd44a 2400 _writeData(data & 0x1F); // Set Icon pattern, no blink support (Instr Set 1)
wim 36:9f5f86dfd44a 2401
wim 36:9f5f86dfd44a 2402 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
wim 36:9f5f86dfd44a 2403 // Select Std Instr set, Select IS=0
wim 36:9f5f86dfd44a 2404 break; // end ST7032
wim 36:9f5f86dfd44a 2405
wim 36:9f5f86dfd44a 2406 case ST7036_3V3:
wim 36:9f5f86dfd44a 2407 case ST7036_5V:
wim 36:9f5f86dfd44a 2408 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH IS2,IS1 = 01 (Select Instr Set = 1)
wim 36:9f5f86dfd44a 2409 _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set 1)
wim 36:9f5f86dfd44a 2410
wim 36:9f5f86dfd44a 2411 _writeData(data & 0x1F); // Set Icon pattern, no blink support (Instr Set 1)
wim 36:9f5f86dfd44a 2412
wim 36:9f5f86dfd44a 2413 _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instr Set = 0)
wim 36:9f5f86dfd44a 2414 // Select Std Instr set, Select IS=0
wim 36:9f5f86dfd44a 2415 break; // end ST7036
wim 36:9f5f86dfd44a 2416
wim 36:9f5f86dfd44a 2417 case SSD1803_3V3:
wim 36:9f5f86dfd44a 2418 // case SSD1803_5V:
wim 36:9f5f86dfd44a 2419 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS
wim 36:9f5f86dfd44a 2420 // Select Instruction Set 1
wim 36:9f5f86dfd44a 2421 _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set = 1)
wim 36:9f5f86dfd44a 2422 _writeData(data); // Set Icon pattern (Instr Set = 1)
wim 36:9f5f86dfd44a 2423
wim 36:9f5f86dfd44a 2424 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS
wim 36:9f5f86dfd44a 2425 // Select IS=0
wim 36:9f5f86dfd44a 2426 break; // end SSD1803
wim 36:9f5f86dfd44a 2427
wim 36:9f5f86dfd44a 2428 case PCF2103_3V3:
wim 36:9f5f86dfd44a 2429 case PCF2113_3V3:
wim 36:9f5f86dfd44a 2430 case PCF2119_3V3:
wim 36:9f5f86dfd44a 2431 // Store UDC/Icon pattern for PCF2103 and PCF2113:
wim 36:9f5f86dfd44a 2432 // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
wim 36:9f5f86dfd44a 2433 // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
wim 36:9f5f86dfd44a 2434 // Store UDC/Icon pattern for PCF2119:
wim 36:9f5f86dfd44a 2435 // 4 x 8 rows x 5 bits = 160 bits for Normal pattern (UDC 0..3) and
wim 36:9f5f86dfd44a 2436 // 4 x 8 rows x 5 bits = 160 bits for Blink pattern (UDC 4..7)
wim 36:9f5f86dfd44a 2437 _writeCommand(0x40 | (idx & 0x3F)); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 36:9f5f86dfd44a 2438 _writeData(data); // Set Icon pattern (Instr Set = 1)
wim 36:9f5f86dfd44a 2439 break; // case PCF2103_3V3 Controller
wim 36:9f5f86dfd44a 2440
wim 36:9f5f86dfd44a 2441 default:
wim 36:9f5f86dfd44a 2442 break; // end default
wim 36:9f5f86dfd44a 2443 } // end switch _ctrl
wim 36:9f5f86dfd44a 2444
wim 36:9f5f86dfd44a 2445 //Select DD RAM again for current LCD controller and restore the addresspointer
wim 36:9f5f86dfd44a 2446 int addr = getAddress(_column, _row);
wim 36:9f5f86dfd44a 2447 _writeCommand(0x80 | addr);
wim 36:9f5f86dfd44a 2448
wim 36:9f5f86dfd44a 2449 } // end setIcon()
wim 36:9f5f86dfd44a 2450
wim 36:9f5f86dfd44a 2451 /** Clear Icons
wim 36:9f5f86dfd44a 2452 *
wim 36:9f5f86dfd44a 2453 * @param none
wim 36:9f5f86dfd44a 2454 * @return none
wim 36:9f5f86dfd44a 2455 */
wim 36:9f5f86dfd44a 2456 //@TODO Add support for 40x4 dual controller
wim 36:9f5f86dfd44a 2457 void TextLCD_Base::clrIcon() {
wim 36:9f5f86dfd44a 2458 // Icons are defined by a byte bitpattern. The P0..P5 form the Icon pattern for KS0073, and P0..P4 for KS0078
wim 36:9f5f86dfd44a 2459 // P7 P6 P5 P4 P3 P2 P1 P0
wim 36:9f5f86dfd44a 2460 // 0 B1 B0 0 0 0 0 0 0
wim 36:9f5f86dfd44a 2461 // 1 B1 B0 0 0 0 0 0 0
wim 36:9f5f86dfd44a 2462 // .............
wim 36:9f5f86dfd44a 2463 // 15 B1 B0 0 0 0 0 0 0
wim 36:9f5f86dfd44a 2464 //
wim 36:9f5f86dfd44a 2465 // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
wim 36:9f5f86dfd44a 2466 // B1 B0 Mode
wim 36:9f5f86dfd44a 2467 // 0 0 No Blinking for this icon row
wim 36:9f5f86dfd44a 2468 // 0 1 Enabled pixels in P5 will blink
wim 36:9f5f86dfd44a 2469 // 1 x Enabled pixels in P0..P5 will blink
wim 36:9f5f86dfd44a 2470 //
wim 36:9f5f86dfd44a 2471 // Note: the PCF2103 and PCF2113 use UDCs to set Icons
wim 36:9f5f86dfd44a 2472 // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
wim 36:9f5f86dfd44a 2473 // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
wim 36:9f5f86dfd44a 2474 // Note: the PCF2119 uses UDCs to set Icons
wim 36:9f5f86dfd44a 2475 // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
wim 36:9f5f86dfd44a 2476 // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
wim 36:9f5f86dfd44a 2477 int idx;
wim 36:9f5f86dfd44a 2478
wim 36:9f5f86dfd44a 2479 switch (_ctrl) {
wim 36:9f5f86dfd44a 2480 case KS0073:
wim 36:9f5f86dfd44a 2481 case KS0078:
wim 36:9f5f86dfd44a 2482 _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N RE(1) BE LP
wim 36:9f5f86dfd44a 2483 // Select Extended Instruction Set
wim 36:9f5f86dfd44a 2484 for (idx=0; idx<16; idx++) {
wim 36:9f5f86dfd44a 2485 _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Ext Instr Set)
wim 36:9f5f86dfd44a 2486 _writeData(0x00); // Clear Icon pattern (Ext Instr Set)
wim 36:9f5f86dfd44a 2487 }
wim 36:9f5f86dfd44a 2488 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Std Instruction Set
wim 36:9f5f86dfd44a 2489 // Select Std Instr set
wim 36:9f5f86dfd44a 2490 break; // end KS0073, KS0078
wim 36:9f5f86dfd44a 2491
wim 36:9f5f86dfd44a 2492 case ST7032_3V3:
wim 36:9f5f86dfd44a 2493 case ST7032_5V:
wim 36:9f5f86dfd44a 2494 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
wim 36:9f5f86dfd44a 2495
wim 36:9f5f86dfd44a 2496 for (idx=0; idx<16; idx++) {
wim 36:9f5f86dfd44a 2497 _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Instr Set 1)
wim 36:9f5f86dfd44a 2498 _writeData(0x00); // Clear Icon pattern (Instr Set 1)
wim 36:9f5f86dfd44a 2499 }
wim 36:9f5f86dfd44a 2500
wim 36:9f5f86dfd44a 2501 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
wim 36:9f5f86dfd44a 2502 // Select Std Instr set, Select IS=0
wim 36:9f5f86dfd44a 2503 break; // end ST7032
wim 36:9f5f86dfd44a 2504
wim 36:9f5f86dfd44a 2505 case ST7036_3V3:
wim 36:9f5f86dfd44a 2506 case ST7036_5V:
wim 36:9f5f86dfd44a 2507 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH IS2,IS1 = 01 (Select Instr Set = 1)
wim 36:9f5f86dfd44a 2508
wim 36:9f5f86dfd44a 2509 for (idx=0; idx<16; idx++) {
wim 36:9f5f86dfd44a 2510 _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Instr Set 1)
wim 36:9f5f86dfd44a 2511 _writeData(0x00); // Clear Icon pattern (Instr Set 1)
wim 36:9f5f86dfd44a 2512 }
wim 36:9f5f86dfd44a 2513
wim 36:9f5f86dfd44a 2514 _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instr Set = 0)
wim 36:9f5f86dfd44a 2515 // Select Std Instr set, Select IS=0
wim 36:9f5f86dfd44a 2516 break; // end ST7036
wim 36:9f5f86dfd44a 2517
wim 36:9f5f86dfd44a 2518 case SSD1803_3V3:
wim 36:9f5f86dfd44a 2519 // case SSD1803_5V:
wim 36:9f5f86dfd44a 2520 _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS
wim 36:9f5f86dfd44a 2521 // Select Instruction Set 1
wim 36:9f5f86dfd44a 2522 for (idx=0; idx<16; idx++) {
wim 36:9f5f86dfd44a 2523 _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Ext Instr Set)
wim 36:9f5f86dfd44a 2524 _writeData(0x00); // Clear Icon pattern (Ext Instr Set)
wim 36:9f5f86dfd44a 2525 }
wim 36:9f5f86dfd44a 2526 _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS
wim 36:9f5f86dfd44a 2527 // Select IS=0
wim 36:9f5f86dfd44a 2528 break; // end SSD1803
wim 36:9f5f86dfd44a 2529
wim 36:9f5f86dfd44a 2530 case PCF2103_3V3:
wim 36:9f5f86dfd44a 2531 case PCF2113_3V3:
wim 36:9f5f86dfd44a 2532 // PCF2103 and PCF2113 use part of the UDC RAM to control Icons
wim 36:9f5f86dfd44a 2533 // Select CG RAM
wim 36:9f5f86dfd44a 2534
wim 36:9f5f86dfd44a 2535 _writeCommand(0x40 | (0 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 36:9f5f86dfd44a 2536 // Store UDC/Icon pattern:
wim 36:9f5f86dfd44a 2537 // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
wim 36:9f5f86dfd44a 2538 for (int i=0; i<(3 * 8); i++) {
wim 36:9f5f86dfd44a 2539 // _writeData(0x1F); // All On
wim 36:9f5f86dfd44a 2540 _writeData(0x00); // All Off
wim 36:9f5f86dfd44a 2541 }
wim 36:9f5f86dfd44a 2542
wim 36:9f5f86dfd44a 2543 _writeCommand(0x40 | (4 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 36:9f5f86dfd44a 2544 // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
wim 36:9f5f86dfd44a 2545 for (int i=0; i<(3 * 8); i++) {
wim 36:9f5f86dfd44a 2546 // _writeData(0x1F); // All On
wim 36:9f5f86dfd44a 2547 _writeData(0x00); // All Off
wim 36:9f5f86dfd44a 2548 }
wim 36:9f5f86dfd44a 2549 break; // case PCF2103_3V3 Controller
wim 36:9f5f86dfd44a 2550
wim 36:9f5f86dfd44a 2551 case PCF2119_3V3:
wim 36:9f5f86dfd44a 2552 // PCF2119 uses part of the UDC RAM to control Icons
wim 36:9f5f86dfd44a 2553 // Select CG RAM
wim 36:9f5f86dfd44a 2554
wim 36:9f5f86dfd44a 2555 _writeCommand(0x40 | (0 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 36:9f5f86dfd44a 2556 // Store UDC/Icon pattern:
wim 36:9f5f86dfd44a 2557 // 4 x 8 rows x 5 bits = 160 bits for Normal pattern (UDC 0..3) and
wim 36:9f5f86dfd44a 2558 for (int i=0; i<(4 * 8); i++) {
wim 36:9f5f86dfd44a 2559 // _writeData(0x1F); // All On
wim 36:9f5f86dfd44a 2560 _writeData(0x00); // All Off
wim 36:9f5f86dfd44a 2561 }
wim 36:9f5f86dfd44a 2562
wim 36:9f5f86dfd44a 2563 _writeCommand(0x40 | (4 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
wim 36:9f5f86dfd44a 2564 // 4 x 8 rows x 5 bits = 160 bits for Blink pattern (UDC 4..7)
wim 36:9f5f86dfd44a 2565 for (int i=0; i<(4 * 8); i++) {
wim 36:9f5f86dfd44a 2566 // _writeData(0x1F); // All On
wim 36:9f5f86dfd44a 2567 _writeData(0x00); // All Off
wim 36:9f5f86dfd44a 2568 }
wim 36:9f5f86dfd44a 2569 break; // case PCF2119_3V3 Controller
wim 36:9f5f86dfd44a 2570
wim 36:9f5f86dfd44a 2571 default:
wim 36:9f5f86dfd44a 2572 break; // end default
wim 36:9f5f86dfd44a 2573 } // end switch _ctrl
wim 36:9f5f86dfd44a 2574
wim 36:9f5f86dfd44a 2575 //Select DD RAM again for current LCD controller and restore the addresspointer
wim 36:9f5f86dfd44a 2576 int addr = getAddress(_column, _row);
wim 36:9f5f86dfd44a 2577 _writeCommand(0x80 | addr);
wim 36:9f5f86dfd44a 2578 } //end clrIcon()
wim 36:9f5f86dfd44a 2579
wim 36:9f5f86dfd44a 2580
wim 36:9f5f86dfd44a 2581 /** Set Invert
wim 36:9f5f86dfd44a 2582 * setInvert method is supported by some compatible devices (eg KS0073) to swap between black and white
wim 36:9f5f86dfd44a 2583 *
wim 36:9f5f86dfd44a 2584 * @param bool invertOn Invert on/off
wim 36:9f5f86dfd44a 2585 * @return none
wim 36:9f5f86dfd44a 2586 */
wim 36:9f5f86dfd44a 2587 //@TODO Add support for 40x4 dual controller
wim 36:9f5f86dfd44a 2588 void TextLCD_Base::setInvert(bool invertOn) {
wim 36:9f5f86dfd44a 2589
wim 36:9f5f86dfd44a 2590 if (invertOn) {
wim 36:9f5f86dfd44a 2591 // Controllers that support Invert
wim 36:9f5f86dfd44a 2592 switch (_ctrl) {
wim 36:9f5f86dfd44a 2593 case KS0073:
wim 36:9f5f86dfd44a 2594 case KS0078:
wim 36:9f5f86dfd44a 2595 _function = _function | 0x01; // Enable Invert
wim 36:9f5f86dfd44a 2596 _writeCommand(0x20 | _function); // Activate Invert (Std Instr Set)
wim 36:9f5f86dfd44a 2597 break;
wim 36:9f5f86dfd44a 2598 case SSD1803_3V3 :
wim 36:9f5f86dfd44a 2599 // case SSD1803_5V :
wim 36:9f5f86dfd44a 2600 case US2066_3V3:
wim 36:9f5f86dfd44a 2601 // case USS2066_5V:
wim 36:9f5f86dfd44a 2602 _function_1 = _function_1 | 0x01; // Enable Invert
wim 36:9f5f86dfd44a 2603 // Set function, 0 0 1 DL N BE RE(1) REV (SSD1803)
wim 36:9f5f86dfd44a 2604 // Set function, 0 0 1 X N BE RE(1) REV (US2066)
wim 36:9f5f86dfd44a 2605 _writeCommand(0x20 | _function_1); // Activate Invert (Ext Instr Set)
wim 36:9f5f86dfd44a 2606 _writeCommand(0x20 | _function); // Return to Std Instr Set
wim 36:9f5f86dfd44a 2607 break;
wim 36:9f5f86dfd44a 2608 default:
wim 36:9f5f86dfd44a 2609 //Unsupported feature for other controllers
wim 36:9f5f86dfd44a 2610 break;
wim 36:9f5f86dfd44a 2611 } // end switch
wim 36:9f5f86dfd44a 2612 }
wim 36:9f5f86dfd44a 2613 else {
wim 36:9f5f86dfd44a 2614 // Controllers that support Invert
wim 36:9f5f86dfd44a 2615 switch (_ctrl) {
wim 36:9f5f86dfd44a 2616 case KS0073:
wim 36:9f5f86dfd44a 2617 case KS0078:
wim 36:9f5f86dfd44a 2618 _function = _function & ~0x01; // Disable Invert
wim 36:9f5f86dfd44a 2619 _writeCommand(0x20 | _function); // Disable Invert (Std Instr Set)
wim 36:9f5f86dfd44a 2620 break;
wim 36:9f5f86dfd44a 2621 case SSD1803_3V3 :
wim 36:9f5f86dfd44a 2622 // case SSD1803_5V :
wim 36:9f5f86dfd44a 2623 case US2066_3V3:
wim 36:9f5f86dfd44a 2624 // case USS2066_5V:
wim 36:9f5f86dfd44a 2625 _function_1 = _function_1 & ~0x01; // Disable Invert
wim 36:9f5f86dfd44a 2626 // Set function, 0 0 1 DL N BE RE(1) REV (SSD1803)
wim 36:9f5f86dfd44a 2627 // Set function, 0 0 1 X N BE RE(1) REV (US2066)
wim 36:9f5f86dfd44a 2628 _writeCommand(0x20 | _function_1); // Activate Invert (Ext Instr Set)
wim 36:9f5f86dfd44a 2629 _writeCommand(0x20 | _function); // Return to Std Instr Set
wim 36:9f5f86dfd44a 2630 break;
wim 36:9f5f86dfd44a 2631
wim 36:9f5f86dfd44a 2632 default:
wim 36:9f5f86dfd44a 2633 //Unsupported feature for other controllers
wim 36:9f5f86dfd44a 2634 break;
wim 36:9f5f86dfd44a 2635 } // end switch
wim 36:9f5f86dfd44a 2636 }
wim 36:9f5f86dfd44a 2637 } // end setInvert()
wim 36:9f5f86dfd44a 2638
wim 23:d47f226efb24 2639 //--------- End TextLCD_Base -----------
wim 21:9eb628d9e164 2640
wim 22:35742ec80c24 2641
wim 23:d47f226efb24 2642 //--------- Start TextLCD Bus -----------
wim 21:9eb628d9e164 2643
wim 21:9eb628d9e164 2644 /* Create a TextLCD interface for using regular mbed pins
wim 21:9eb628d9e164 2645 *
wim 21:9eb628d9e164 2646 * @param rs Instruction/data control line
wim 21:9eb628d9e164 2647 * @param e Enable line (clock)
wim 21:9eb628d9e164 2648 * @param d4-d7 Data lines for using as a 4-bit interface
wim 21:9eb628d9e164 2649 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 21:9eb628d9e164 2650 * @param bl Backlight control line (optional, default = NC)
wim 21:9eb628d9e164 2651 * @param e2 Enable2 line (clock for second controller, LCD40x4 only)
wim 21:9eb628d9e164 2652 * @param ctrl LCD controller (default = HD44780)
wim 21:9eb628d9e164 2653 */
wim 21:9eb628d9e164 2654 TextLCD::TextLCD(PinName rs, PinName e,
wim 21:9eb628d9e164 2655 PinName d4, PinName d5, PinName d6, PinName d7,
wim 21:9eb628d9e164 2656 LCDType type, PinName bl, PinName e2, LCDCtrl ctrl) :
wim 21:9eb628d9e164 2657 TextLCD_Base(type, ctrl),
wim 22:35742ec80c24 2658 _rs(rs), _e(e), _d(d4, d5, d6, d7) {
wim 22:35742ec80c24 2659
wim 22:35742ec80c24 2660 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 22:35742ec80c24 2661 if (bl != NC) {
wim 22:35742ec80c24 2662 _bl = new DigitalOut(bl); //Construct new pin
wim 22:35742ec80c24 2663 _bl->write(0); //Deactivate
wim 22:35742ec80c24 2664 }
wim 22:35742ec80c24 2665 else {
wim 22:35742ec80c24 2666 // No Hardware Backlight pin
wim 22:35742ec80c24 2667 _bl = NULL; //Construct dummy pin
wim 22:35742ec80c24 2668 }
wim 22:35742ec80c24 2669
wim 22:35742ec80c24 2670 // The hardware Enable2 pin is only needed for LCD40x4. Test and make sure whether it exists or not to prevent illegal access.
wim 22:35742ec80c24 2671 if (e2 != NC) {
wim 22:35742ec80c24 2672 _e2 = new DigitalOut(e2); //Construct new pin
wim 22:35742ec80c24 2673 _e2->write(0); //Deactivate
wim 22:35742ec80c24 2674 }
wim 22:35742ec80c24 2675 else {
wim 22:35742ec80c24 2676 // No Hardware Enable pin
wim 22:35742ec80c24 2677 _e2 = NULL; //Construct dummy pin
wim 22:35742ec80c24 2678 }
wim 37:ce348c002929 2679
wim 37:ce348c002929 2680 _init(_LCD_DL_4); // Set Datalength to 4 bit for mbed bus interfaces
wim 21:9eb628d9e164 2681 }
wim 21:9eb628d9e164 2682
wim 29:a3663151aa65 2683 /** Destruct a TextLCD interface for using regular mbed pins
wim 29:a3663151aa65 2684 *
wim 29:a3663151aa65 2685 * @param none
wim 29:a3663151aa65 2686 * @return none
wim 29:a3663151aa65 2687 */
wim 29:a3663151aa65 2688 TextLCD::~TextLCD() {
wim 29:a3663151aa65 2689 if (_bl != NULL) {delete _bl;} // BL pin
wim 29:a3663151aa65 2690 if (_e2 != NULL) {delete _e2;} // E2 pin
wim 29:a3663151aa65 2691 }
wim 29:a3663151aa65 2692
wim 22:35742ec80c24 2693 /** Set E pin (or E2 pin)
wim 22:35742ec80c24 2694 * Used for mbed pins, I2C bus expander or SPI shiftregister
wim 22:35742ec80c24 2695 * Default PinName value for E2 is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins
wim 22:35742ec80c24 2696 * @param value true or false
wim 22:35742ec80c24 2697 * @return none
wim 22:35742ec80c24 2698 */
wim 21:9eb628d9e164 2699 void TextLCD::_setEnable(bool value) {
wim 21:9eb628d9e164 2700
wim 22:35742ec80c24 2701 if(_ctrl_idx==_LCDCtrl_0) {
wim 22:35742ec80c24 2702 if (value) {
wim 22:35742ec80c24 2703 _e = 1; // Set E bit
wim 22:35742ec80c24 2704 }
wim 22:35742ec80c24 2705 else {
wim 22:35742ec80c24 2706 _e = 0; // Reset E bit
wim 22:35742ec80c24 2707 }
wim 22:35742ec80c24 2708 }
wim 22:35742ec80c24 2709 else {
wim 22:35742ec80c24 2710 if (value) {
wim 22:35742ec80c24 2711 if (_e2 != NULL) {_e2->write(1);} //Set E2 bit
wim 22:35742ec80c24 2712 }
wim 22:35742ec80c24 2713 else {
wim 22:35742ec80c24 2714 if (_e2 != NULL) {_e2->write(0);} //Reset E2 bit
wim 22:35742ec80c24 2715 }
wim 22:35742ec80c24 2716 }
wim 21:9eb628d9e164 2717 }
wim 21:9eb628d9e164 2718
wim 21:9eb628d9e164 2719 // Set RS pin
wim 21:9eb628d9e164 2720 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 21:9eb628d9e164 2721 void TextLCD::_setRS(bool value) {
wim 21:9eb628d9e164 2722
wim 22:35742ec80c24 2723 if (value) {
wim 21:9eb628d9e164 2724 _rs = 1; // Set RS bit
wim 22:35742ec80c24 2725 }
wim 22:35742ec80c24 2726 else {
wim 21:9eb628d9e164 2727 _rs = 0; // Reset RS bit
wim 22:35742ec80c24 2728 }
wim 21:9eb628d9e164 2729 }
wim 21:9eb628d9e164 2730
wim 22:35742ec80c24 2731 /** Set BL pin
wim 22:35742ec80c24 2732 * Used for mbed pins, I2C bus expander or SPI shiftregister
wim 22:35742ec80c24 2733 * Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins
wim 22:35742ec80c24 2734 * @param value true or false
wim 22:35742ec80c24 2735 * @return none
wim 22:35742ec80c24 2736 */
wim 21:9eb628d9e164 2737 void TextLCD::_setBL(bool value) {
wim 21:9eb628d9e164 2738
wim 22:35742ec80c24 2739 if (value) {
wim 22:35742ec80c24 2740 if (_bl != NULL) {_bl->write(1);} //Set BL bit
wim 22:35742ec80c24 2741 }
wim 22:35742ec80c24 2742 else {
wim 22:35742ec80c24 2743 if (_bl != NULL) {_bl->write(0);} //Reset BL bit
wim 22:35742ec80c24 2744 }
wim 21:9eb628d9e164 2745 }
wim 21:9eb628d9e164 2746
wim 21:9eb628d9e164 2747 // Place the 4bit data on the databus
wim 21:9eb628d9e164 2748 // Used for mbed pins, I2C bus expander or SPI shifregister
wim 21:9eb628d9e164 2749 void TextLCD::_setData(int value) {
wim 21:9eb628d9e164 2750 _d = value & 0x0F; // Write Databits
wim 21:9eb628d9e164 2751 }
wim 34:e5a0dcb43ecc 2752
wim 23:d47f226efb24 2753 //----------- End TextLCD ---------------
wim 21:9eb628d9e164 2754
wim 21:9eb628d9e164 2755
wim 23:d47f226efb24 2756 //--------- Start TextLCD_I2C -----------
wim 34:e5a0dcb43ecc 2757 #if(LCD_I2C == 1) /* I2C Expander PCF8574/MCP23008 */
wim 26:bd897a001012 2758 /** Create a TextLCD interface using an I2C PC8574 (or PCF8574A) or MCP23008 portexpander
wim 22:35742ec80c24 2759 *
wim 22:35742ec80c24 2760 * @param i2c I2C Bus
wim 26:bd897a001012 2761 * @param deviceAddress I2C slave address (PCF8574, PCF8574A or MCP23008, default = 0x40)
wim 22:35742ec80c24 2762 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 22:35742ec80c24 2763 * @param ctrl LCD controller (default = HD44780)
wim 22:35742ec80c24 2764 */
wim 21:9eb628d9e164 2765 TextLCD_I2C::TextLCD_I2C(I2C *i2c, char deviceAddress, LCDType type, LCDCtrl ctrl) :
wim 21:9eb628d9e164 2766 TextLCD_Base(type, ctrl),
wim 21:9eb628d9e164 2767 _i2c(i2c){
wim 21:9eb628d9e164 2768
wim 22:35742ec80c24 2769 _slaveAddress = deviceAddress & 0xFE;
wim 28:30fa94f7341c 2770
wim 28:30fa94f7341c 2771 // Setup the I2C bus
wim 28:30fa94f7341c 2772 // The max bitrate for PCF8574 is 100kbit, the max bitrate for MCP23008 is 400kbit,
wim 32:59c4b8f648d4 2773 _i2c->frequency(100000);
wim 21:9eb628d9e164 2774
wim 26:bd897a001012 2775 #if (MCP23008==1)
wim 26:bd897a001012 2776 // MCP23008 portexpander Init
wim 37:ce348c002929 2777 _writeRegister(IODIR, 0x00); // All pins are outputs
wim 37:ce348c002929 2778 _writeRegister(IPOL, 0x00); // No reverse polarity on inputs
wim 37:ce348c002929 2779 _writeRegister(GPINTEN, 0x00); // No interrupt on change of input pins
wim 37:ce348c002929 2780 _writeRegister(DEFVAL, 0x00); // Default value to compare against for interrupts
wim 37:ce348c002929 2781 _writeRegister(INTCON, 0x00); // No interrupt on changes, compare against previous pin value
wim 37:ce348c002929 2782 _writeRegister(IOCON, 0x20); // b1=0 - Interrupt polarity active low
wim 37:ce348c002929 2783 // b2=0 - Interrupt pin active driver output
wim 37:ce348c002929 2784 // b4=0 - Slew rate enable on SDA
wim 37:ce348c002929 2785 // b5=0 - Auto-increment on registeraddress
wim 37:ce348c002929 2786 // b5=1 - No auto-increment on registeraddress => needed for performance improved I2C expander mode
wim 37:ce348c002929 2787 _writeRegister(GPPU, 0x00); // No Pullup
wim 37:ce348c002929 2788 // INTF // Interrupt flags read (Read-Only)
wim 37:ce348c002929 2789 // INTCAP // Captured inputpins at time of interrupt (Read-Only)
wim 37:ce348c002929 2790 // _writeRegister(GPIO, 0x00); // Output/Input pins
wim 37:ce348c002929 2791 // _writeRegister(OLAT, 0x00); // Output Latch
wim 26:bd897a001012 2792
wim 21:9eb628d9e164 2793 // Init the portexpander bus
wim 21:9eb628d9e164 2794 _lcd_bus = D_LCD_BUS_DEF;
wim 21:9eb628d9e164 2795
wim 21:9eb628d9e164 2796 // write the new data to the portexpander
wim 37:ce348c002929 2797 _writeRegister(GPIO, _lcd_bus);
wim 26:bd897a001012 2798 #else
wim 26:bd897a001012 2799 // PCF8574 of PCF8574A portexpander
wim 26:bd897a001012 2800
wim 26:bd897a001012 2801 // Init the portexpander bus
wim 26:bd897a001012 2802 _lcd_bus = D_LCD_BUS_DEF;
wim 26:bd897a001012 2803
wim 26:bd897a001012 2804 // write the new data to the portexpander
wim 21:9eb628d9e164 2805 _i2c->write(_slaveAddress, &_lcd_bus, 1);
wim 26:bd897a001012 2806 #endif
wim 21:9eb628d9e164 2807
wim 37:ce348c002929 2808 _init(_LCD_DL_4); // Set Datalength to 4 bit for all serial expander interfaces
wim 21:9eb628d9e164 2809 }
wim 21:9eb628d9e164 2810
wim 37:ce348c002929 2811 // Set E bit (or E2 bit) in the databus shadowvalue
wim 37:ce348c002929 2812 // Used for mbed I2C bus expander
wim 37:ce348c002929 2813 void TextLCD_I2C::_setEnableBit(bool value) {
wim 21:9eb628d9e164 2814
wim 22:35742ec80c24 2815 if(_ctrl_idx==_LCDCtrl_0) {
wim 26:bd897a001012 2816 if (value) {
wim 22:35742ec80c24 2817 _lcd_bus |= D_LCD_E; // Set E bit
wim 26:bd897a001012 2818 }
wim 26:bd897a001012 2819 else {
wim 22:35742ec80c24 2820 _lcd_bus &= ~D_LCD_E; // Reset E bit
wim 26:bd897a001012 2821 }
wim 22:35742ec80c24 2822 }
wim 22:35742ec80c24 2823 else {
wim 26:bd897a001012 2824 if (value) {
wim 22:35742ec80c24 2825 _lcd_bus |= D_LCD_E2; // Set E2 bit
wim 26:bd897a001012 2826 }
wim 26:bd897a001012 2827 else {
wim 22:35742ec80c24 2828 _lcd_bus &= ~D_LCD_E2; // Reset E2bit
wim 26:bd897a001012 2829 }
wim 26:bd897a001012 2830 }
wim 37:ce348c002929 2831 }
wim 37:ce348c002929 2832
wim 37:ce348c002929 2833 // Set E pin (or E2 pin)
wim 37:ce348c002929 2834 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 37:ce348c002929 2835 void TextLCD_I2C::_setEnable(bool value) {
wim 37:ce348c002929 2836
wim 37:ce348c002929 2837 // Place the E or E2 bit data on the databus shadowvalue
wim 37:ce348c002929 2838 _setEnableBit(value);
wim 26:bd897a001012 2839
wim 26:bd897a001012 2840 #if (MCP23008==1)
wim 26:bd897a001012 2841 // MCP23008 portexpander
wim 26:bd897a001012 2842
wim 26:bd897a001012 2843 // write the new data to the portexpander
wim 37:ce348c002929 2844 _writeRegister(GPIO, _lcd_bus);
wim 26:bd897a001012 2845 #else
wim 26:bd897a001012 2846 // PCF8574 of PCF8574A portexpander
wim 21:9eb628d9e164 2847
wim 22:35742ec80c24 2848 // write the new data to the I2C portexpander
wim 22:35742ec80c24 2849 _i2c->write(_slaveAddress, &_lcd_bus, 1);
wim 26:bd897a001012 2850 #endif
wim 21:9eb628d9e164 2851 }
wim 21:9eb628d9e164 2852
wim 37:ce348c002929 2853
wim 21:9eb628d9e164 2854 // Set RS pin
wim 21:9eb628d9e164 2855 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 21:9eb628d9e164 2856 void TextLCD_I2C::_setRS(bool value) {
wim 21:9eb628d9e164 2857
wim 26:bd897a001012 2858 if (value) {
wim 22:35742ec80c24 2859 _lcd_bus |= D_LCD_RS; // Set RS bit
wim 26:bd897a001012 2860 }
wim 26:bd897a001012 2861 else {
wim 22:35742ec80c24 2862 _lcd_bus &= ~D_LCD_RS; // Reset RS bit
wim 26:bd897a001012 2863 }
wim 26:bd897a001012 2864
wim 26:bd897a001012 2865 #if (MCP23008==1)
wim 26:bd897a001012 2866 // MCP23008 portexpander
wim 26:bd897a001012 2867
wim 26:bd897a001012 2868 // write the new data to the portexpander
wim 37:ce348c002929 2869 _writeRegister(GPIO, _lcd_bus);
wim 26:bd897a001012 2870 #else
wim 26:bd897a001012 2871 // PCF8574 of PCF8574A portexpander
wim 21:9eb628d9e164 2872
wim 22:35742ec80c24 2873 // write the new data to the I2C portexpander
wim 22:35742ec80c24 2874 _i2c->write(_slaveAddress, &_lcd_bus, 1);
wim 30:033048611c01 2875 #endif
wim 21:9eb628d9e164 2876 }
wim 21:9eb628d9e164 2877
wim 21:9eb628d9e164 2878 // Set BL pin
wim 21:9eb628d9e164 2879 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 21:9eb628d9e164 2880 void TextLCD_I2C::_setBL(bool value) {
wim 21:9eb628d9e164 2881
wim 26:bd897a001012 2882 if (value) {
wim 21:9eb628d9e164 2883 _lcd_bus |= D_LCD_BL; // Set BL bit
wim 26:bd897a001012 2884 }
wim 26:bd897a001012 2885 else {
wim 21:9eb628d9e164 2886 _lcd_bus &= ~D_LCD_BL; // Reset BL bit
wim 26:bd897a001012 2887 }
wim 26:bd897a001012 2888
wim 26:bd897a001012 2889 #if (MCP23008==1)
wim 26:bd897a001012 2890 // MCP23008 portexpander
wim 26:bd897a001012 2891
wim 26:bd897a001012 2892 // write the new data to the portexpander
wim 37:ce348c002929 2893 _writeRegister(GPIO, _lcd_bus);
wim 37:ce348c002929 2894 #else
wim 37:ce348c002929 2895 // PCF8574 of PCF8574A portexpander
wim 37:ce348c002929 2896
wim 37:ce348c002929 2897 // write the new data to the I2C portexpander
wim 37:ce348c002929 2898 _i2c->write(_slaveAddress, &_lcd_bus, 1);
wim 37:ce348c002929 2899 #endif
wim 37:ce348c002929 2900 }
wim 37:ce348c002929 2901
wim 37:ce348c002929 2902
wim 37:ce348c002929 2903 // Place the 4bit data in the databus shadowvalue
wim 37:ce348c002929 2904 // Used for mbed I2C bus expander
wim 37:ce348c002929 2905 void TextLCD_I2C::_setDataBits(int value) {
wim 37:ce348c002929 2906
wim 37:ce348c002929 2907 // Set bit by bit to support any mapping of expander portpins to LCD pins
wim 37:ce348c002929 2908 if (value & 0x01){
wim 37:ce348c002929 2909 _lcd_bus |= D_LCD_D4; // Set Databit
wim 37:ce348c002929 2910 }
wim 37:ce348c002929 2911 else {
wim 37:ce348c002929 2912 _lcd_bus &= ~D_LCD_D4; // Reset Databit
wim 37:ce348c002929 2913 }
wim 37:ce348c002929 2914
wim 37:ce348c002929 2915 if (value & 0x02){
wim 37:ce348c002929 2916 _lcd_bus |= D_LCD_D5; // Set Databit
wim 37:ce348c002929 2917 }
wim 37:ce348c002929 2918 else {
wim 37:ce348c002929 2919 _lcd_bus &= ~D_LCD_D5; // Reset Databit
wim 37:ce348c002929 2920 }
wim 37:ce348c002929 2921
wim 37:ce348c002929 2922 if (value & 0x04) {
wim 37:ce348c002929 2923 _lcd_bus |= D_LCD_D6; // Set Databit
wim 37:ce348c002929 2924 }
wim 37:ce348c002929 2925 else {
wim 37:ce348c002929 2926 _lcd_bus &= ~D_LCD_D6; // Reset Databit
wim 37:ce348c002929 2927 }
wim 37:ce348c002929 2928
wim 37:ce348c002929 2929 if (value & 0x08) {
wim 37:ce348c002929 2930 _lcd_bus |= D_LCD_D7; // Set Databit
wim 37:ce348c002929 2931 }
wim 37:ce348c002929 2932 else {
wim 37:ce348c002929 2933 _lcd_bus &= ~D_LCD_D7; // Reset Databit
wim 37:ce348c002929 2934 }
wim 37:ce348c002929 2935 }
wim 37:ce348c002929 2936
wim 37:ce348c002929 2937 // Place the 4bit data on the databus
wim 37:ce348c002929 2938 // Used for mbed pins, I2C bus expander or SPI shifregister
wim 37:ce348c002929 2939 void TextLCD_I2C::_setData(int value) {
wim 37:ce348c002929 2940
wim 37:ce348c002929 2941 // Place the 4bit data on the databus shadowvalue
wim 37:ce348c002929 2942 _setDataBits(value);
wim 37:ce348c002929 2943
wim 37:ce348c002929 2944 // Place the 4bit data on the databus
wim 37:ce348c002929 2945 #if (MCP23008==1)
wim 37:ce348c002929 2946 // MCP23008 portexpander
wim 37:ce348c002929 2947
wim 37:ce348c002929 2948 // write the new data to the portexpander
wim 37:ce348c002929 2949 _writeRegister(GPIO, _lcd_bus);
wim 26:bd897a001012 2950 #else
wim 26:bd897a001012 2951 // PCF8574 of PCF8574A portexpander
wim 21:9eb628d9e164 2952
wim 21:9eb628d9e164 2953 // write the new data to the I2C portexpander
wim 21:9eb628d9e164 2954 _i2c->write(_slaveAddress, &_lcd_bus, 1);
wim 30:033048611c01 2955 #endif
wim 21:9eb628d9e164 2956 }
wim 21:9eb628d9e164 2957
wim 37:ce348c002929 2958 // Write data to MCP23008 I2C portexpander
wim 37:ce348c002929 2959 // Used for mbed I2C bus expander
wim 37:ce348c002929 2960 void TextLCD_I2C::_writeRegister (int reg, int value) {
wim 37:ce348c002929 2961 char data[] = {reg, value};
wim 37:ce348c002929 2962
wim 37:ce348c002929 2963 _i2c->write(_slaveAddress, data, 2);
wim 37:ce348c002929 2964 }
wim 37:ce348c002929 2965
wim 37:ce348c002929 2966 //New optimized
wim 37:ce348c002929 2967 //Test faster _writeByte 0.11s vs 0.27s for a 20x4 fillscreen (PCF8574)
wim 37:ce348c002929 2968 //Test faster _writeByte 0.14s vs 0.34s for a 20x4 fillscreen (MCP23008)
wim 37:ce348c002929 2969
wim 37:ce348c002929 2970 // Write a byte using I2C
wim 37:ce348c002929 2971 void TextLCD_I2C::_writeByte(int value) {
wim 37:ce348c002929 2972 char data[6];
wim 37:ce348c002929 2973
wim 37:ce348c002929 2974 #if (MCP23008==1)
wim 37:ce348c002929 2975 // MCP23008 portexpander
wim 37:ce348c002929 2976
wim 37:ce348c002929 2977 data[0] = GPIO; // set registeraddres
wim 37:ce348c002929 2978 // Note: auto-increment is disabled so all data will go to GPIO register
wim 37:ce348c002929 2979
wim 37:ce348c002929 2980 _setEnableBit(true); // set E
wim 37:ce348c002929 2981 _setDataBits(value >> 4); // set data high
wim 37:ce348c002929 2982 data[1] = _lcd_bus;
wim 37:ce348c002929 2983
wim 37:ce348c002929 2984 _setEnableBit(false); // clear E
wim 37:ce348c002929 2985 data[2] = _lcd_bus;
wim 37:ce348c002929 2986
wim 37:ce348c002929 2987 _setEnableBit(true); // set E
wim 37:ce348c002929 2988 _setDataBits(value); // set data low
wim 37:ce348c002929 2989 data[3] = _lcd_bus;
wim 37:ce348c002929 2990
wim 37:ce348c002929 2991 _setEnableBit(false); // clear E
wim 37:ce348c002929 2992 data[4] = _lcd_bus;
wim 37:ce348c002929 2993
wim 37:ce348c002929 2994 // write the packed data to the I2C portexpander
wim 37:ce348c002929 2995 _i2c->write(_slaveAddress, data, 5);
wim 37:ce348c002929 2996 #else
wim 37:ce348c002929 2997 // PCF8574 of PCF8574A portexpander
wim 37:ce348c002929 2998
wim 37:ce348c002929 2999 _setEnableBit(true); // set E
wim 37:ce348c002929 3000 _setDataBits(value >> 4); // set data high
wim 37:ce348c002929 3001 data[0] = _lcd_bus;
wim 37:ce348c002929 3002
wim 37:ce348c002929 3003 _setEnableBit(false); // clear E
wim 37:ce348c002929 3004 data[1] = _lcd_bus;
wim 37:ce348c002929 3005
wim 37:ce348c002929 3006 _setEnableBit(true); // set E
wim 37:ce348c002929 3007 _setDataBits(value); // set data low
wim 37:ce348c002929 3008 data[2] = _lcd_bus;
wim 37:ce348c002929 3009
wim 37:ce348c002929 3010 _setEnableBit(false); // clear E
wim 37:ce348c002929 3011 data[3] = _lcd_bus;
wim 37:ce348c002929 3012
wim 37:ce348c002929 3013 // write the packed data to the I2C portexpander
wim 37:ce348c002929 3014 _i2c->write(_slaveAddress, data, 4);
wim 37:ce348c002929 3015 #endif
wim 37:ce348c002929 3016 }
wim 37:ce348c002929 3017
wim 37:ce348c002929 3018 #endif /* I2C Expander PCF8574/MCP23008 */
wim 37:ce348c002929 3019 //---------- End TextLCD_I2C ------------
wim 37:ce348c002929 3020
wim 37:ce348c002929 3021
wim 37:ce348c002929 3022 //--------- Start TextLCD_SPI -----------
wim 37:ce348c002929 3023 #if(LCD_SPI == 1) /* SPI Expander SN74595 */
wim 37:ce348c002929 3024
wim 37:ce348c002929 3025 /** Create a TextLCD interface using an SPI 74595 portexpander
wim 37:ce348c002929 3026 *
wim 37:ce348c002929 3027 * @param spi SPI Bus
wim 37:ce348c002929 3028 * @param cs chip select pin (active low)
wim 37:ce348c002929 3029 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 37:ce348c002929 3030 * @param ctrl LCD controller (default = HD44780)
wim 37:ce348c002929 3031 */
wim 37:ce348c002929 3032 TextLCD_SPI::TextLCD_SPI(SPI *spi, PinName cs, LCDType type, LCDCtrl ctrl) :
wim 37:ce348c002929 3033 TextLCD_Base(type, ctrl),
wim 37:ce348c002929 3034 _spi(spi),
wim 37:ce348c002929 3035 _cs(cs) {
wim 37:ce348c002929 3036
wim 37:ce348c002929 3037 // Init cs
wim 37:ce348c002929 3038 _cs = 1;
wim 37:ce348c002929 3039
wim 37:ce348c002929 3040 // Setup the spi for 8 bit data, low steady state clock,
wim 37:ce348c002929 3041 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 37:ce348c002929 3042 _spi->format(8,0);
wim 37:ce348c002929 3043 _spi->frequency(500000);
wim 37:ce348c002929 3044 //_spi.frequency(1000000);
wim 37:ce348c002929 3045
wim 37:ce348c002929 3046 // Init the portexpander bus
wim 37:ce348c002929 3047 _lcd_bus = D_LCD_BUS_DEF;
wim 37:ce348c002929 3048
wim 37:ce348c002929 3049 // write the new data to the portexpander
wim 37:ce348c002929 3050 _cs = 0;
wim 37:ce348c002929 3051 _spi->write(_lcd_bus);
wim 37:ce348c002929 3052 _cs = 1;
wim 37:ce348c002929 3053
wim 37:ce348c002929 3054 _init(_LCD_DL_4); // Set Datalength to 4 bit for all serial expander interfaces
wim 37:ce348c002929 3055 }
wim 37:ce348c002929 3056
wim 37:ce348c002929 3057 // Set E pin (or E2 pin)
wim 37:ce348c002929 3058 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 37:ce348c002929 3059 void TextLCD_SPI::_setEnable(bool value) {
wim 37:ce348c002929 3060
wim 37:ce348c002929 3061 if(_ctrl_idx==_LCDCtrl_0) {
wim 37:ce348c002929 3062 if (value) {
wim 37:ce348c002929 3063 _lcd_bus |= D_LCD_E; // Set E bit
wim 37:ce348c002929 3064 }
wim 37:ce348c002929 3065 else {
wim 37:ce348c002929 3066 _lcd_bus &= ~D_LCD_E; // Reset E bit
wim 37:ce348c002929 3067 }
wim 37:ce348c002929 3068 }
wim 37:ce348c002929 3069 else {
wim 37:ce348c002929 3070 if (value) {
wim 37:ce348c002929 3071 _lcd_bus |= D_LCD_E2; // Set E2 bit
wim 37:ce348c002929 3072 }
wim 37:ce348c002929 3073 else {
wim 37:ce348c002929 3074 _lcd_bus &= ~D_LCD_E2; // Reset E2 bit
wim 37:ce348c002929 3075 }
wim 37:ce348c002929 3076 }
wim 37:ce348c002929 3077
wim 37:ce348c002929 3078 // write the new data to the SPI portexpander
wim 37:ce348c002929 3079 _cs = 0;
wim 37:ce348c002929 3080 _spi->write(_lcd_bus);
wim 37:ce348c002929 3081 _cs = 1;
wim 37:ce348c002929 3082 }
wim 37:ce348c002929 3083
wim 37:ce348c002929 3084 // Set RS pin
wim 37:ce348c002929 3085 // Used for mbed pins, I2C bus expander or SPI shiftregister and SPI_N
wim 37:ce348c002929 3086 void TextLCD_SPI::_setRS(bool value) {
wim 37:ce348c002929 3087
wim 37:ce348c002929 3088 if (value) {
wim 37:ce348c002929 3089 _lcd_bus |= D_LCD_RS; // Set RS bit
wim 37:ce348c002929 3090 }
wim 37:ce348c002929 3091 else {
wim 37:ce348c002929 3092 _lcd_bus &= ~D_LCD_RS; // Reset RS bit
wim 37:ce348c002929 3093 }
wim 37:ce348c002929 3094
wim 37:ce348c002929 3095 // write the new data to the SPI portexpander
wim 37:ce348c002929 3096 _cs = 0;
wim 37:ce348c002929 3097 _spi->write(_lcd_bus);
wim 37:ce348c002929 3098 _cs = 1;
wim 37:ce348c002929 3099 }
wim 37:ce348c002929 3100
wim 37:ce348c002929 3101 // Set BL pin
wim 37:ce348c002929 3102 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 37:ce348c002929 3103 void TextLCD_SPI::_setBL(bool value) {
wim 37:ce348c002929 3104
wim 37:ce348c002929 3105 if (value) {
wim 37:ce348c002929 3106 _lcd_bus |= D_LCD_BL; // Set BL bit
wim 37:ce348c002929 3107 }
wim 37:ce348c002929 3108 else {
wim 37:ce348c002929 3109 _lcd_bus &= ~D_LCD_BL; // Reset BL bit
wim 37:ce348c002929 3110 }
wim 37:ce348c002929 3111
wim 37:ce348c002929 3112 // write the new data to the SPI portexpander
wim 37:ce348c002929 3113 _cs = 0;
wim 37:ce348c002929 3114 _spi->write(_lcd_bus);
wim 37:ce348c002929 3115 _cs = 1;
wim 37:ce348c002929 3116 }
wim 21:9eb628d9e164 3117
wim 21:9eb628d9e164 3118 // Place the 4bit data on the databus
wim 37:ce348c002929 3119 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 37:ce348c002929 3120 void TextLCD_SPI::_setData(int value) {
wim 22:35742ec80c24 3121
wim 22:35742ec80c24 3122 // Set bit by bit to support any mapping of expander portpins to LCD pins
wim 37:ce348c002929 3123 if (value & 0x01) {
wim 22:35742ec80c24 3124 _lcd_bus |= D_LCD_D4; // Set Databit
wim 26:bd897a001012 3125 }
wim 37:ce348c002929 3126 else {
wim 37:ce348c002929 3127 _lcd_bus &= ~D_LCD_D4; // Reset Databit
wim 37:ce348c002929 3128 }
wim 37:ce348c002929 3129
wim 37:ce348c002929 3130 if (value & 0x02) {
wim 22:35742ec80c24 3131 _lcd_bus |= D_LCD_D5; // Set Databit
wim 26:bd897a001012 3132 }
wim 26:bd897a001012 3133 else {
wim 37:ce348c002929 3134 _lcd_bus &= ~D_LCD_D5; // Reset Databit
wim 37:ce348c002929 3135 }
wim 37:ce348c002929 3136
wim 37:ce348c002929 3137 if (value & 0x04) {
wim 22:35742ec80c24 3138 _lcd_bus |= D_LCD_D6; // Set Databit
wim 26:bd897a001012 3139 }
wim 37:ce348c002929 3140 else {
wim 37:ce348c002929 3141 _lcd_bus &= ~D_LCD_D6; // Reset Databit
wim 37:ce348c002929 3142 }
wim 37:ce348c002929 3143
wim 37:ce348c002929 3144 if (value & 0x08) {
wim 22:35742ec80c24 3145 _lcd_bus |= D_LCD_D7; // Set Databit
wim 26:bd897a001012 3146 }
wim 26:bd897a001012 3147 else {
wim 26:bd897a001012 3148 _lcd_bus &= ~D_LCD_D7; // Reset Databit
wim 26:bd897a001012 3149 }
wim 21:9eb628d9e164 3150
wim 37:ce348c002929 3151 // write the new data to the SPI portexpander
wim 37:ce348c002929 3152 _cs = 0;
wim 37:ce348c002929 3153 _spi->write(_lcd_bus);
wim 37:ce348c002929 3154 _cs = 1;
wim 22:35742ec80c24 3155 }
wim 21:9eb628d9e164 3156
wim 37:ce348c002929 3157 #endif /* SPI Expander SN74595 */
wim 37:ce348c002929 3158 //---------- End TextLCD_SPI ------------
wim 21:9eb628d9e164 3159
wim 21:9eb628d9e164 3160
wim 28:30fa94f7341c 3161 //--------- Start TextLCD_I2C_N ---------
wim 34:e5a0dcb43ecc 3162 #if(LCD_I2C_N == 1) /* Native I2C */
wim 28:30fa94f7341c 3163
wim 28:30fa94f7341c 3164 /** Create a TextLCD interface using a controller with native I2C interface
wim 28:30fa94f7341c 3165 *
wim 28:30fa94f7341c 3166 * @param i2c I2C Bus
wim 28:30fa94f7341c 3167 * @param deviceAddress I2C slave address (default = 0x7C)
wim 28:30fa94f7341c 3168 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 28:30fa94f7341c 3169 * @param bl Backlight control line (optional, default = NC)
wim 28:30fa94f7341c 3170 * @param ctrl LCD controller (default = ST7032_3V3)
wim 28:30fa94f7341c 3171 */
wim 28:30fa94f7341c 3172 TextLCD_I2C_N::TextLCD_I2C_N(I2C *i2c, char deviceAddress, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 28:30fa94f7341c 3173 TextLCD_Base(type, ctrl),
wim 32:59c4b8f648d4 3174
wim 33:900a94bc7585 3175 _i2c(i2c){
wim 30:033048611c01 3176
wim 28:30fa94f7341c 3177 _slaveAddress = deviceAddress & 0xFE;
wim 28:30fa94f7341c 3178
wim 28:30fa94f7341c 3179 // Setup the I2C bus
wim 29:a3663151aa65 3180 // The max bitrate for ST7032i is 400kbit, lets stick to default here
wim 29:a3663151aa65 3181 _i2c->frequency(100000);
wim 32:59c4b8f648d4 3182
wim 30:033048611c01 3183
wim 28:30fa94f7341c 3184 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 28:30fa94f7341c 3185 if (bl != NC) {
wim 28:30fa94f7341c 3186 _bl = new DigitalOut(bl); //Construct new pin
wim 28:30fa94f7341c 3187 _bl->write(0); //Deactivate
wim 28:30fa94f7341c 3188 }
wim 28:30fa94f7341c 3189 else {
wim 28:30fa94f7341c 3190 // No Hardware Backlight pin
wim 28:30fa94f7341c 3191 _bl = NULL; //Construct dummy pin
wim 28:30fa94f7341c 3192 }
wim 28:30fa94f7341c 3193
wim 30:033048611c01 3194 //Sanity check
wim 30:033048611c01 3195 if (_ctrl & LCD_C_I2C) {
wim 36:9f5f86dfd44a 3196 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 30:033048611c01 3197 }
wim 30:033048611c01 3198 else {
wim 30:033048611c01 3199 error("Error: LCD Controller type does not support native I2C interface\n\r");
wim 30:033048611c01 3200 }
wim 28:30fa94f7341c 3201 }
wim 28:30fa94f7341c 3202
wim 28:30fa94f7341c 3203 TextLCD_I2C_N::~TextLCD_I2C_N() {
wim 28:30fa94f7341c 3204 if (_bl != NULL) {delete _bl;} // BL pin
wim 28:30fa94f7341c 3205 }
wim 28:30fa94f7341c 3206
wim 28:30fa94f7341c 3207 // Not used in this mode
wim 28:30fa94f7341c 3208 void TextLCD_I2C_N::_setEnable(bool value) {
wim 28:30fa94f7341c 3209 }
wim 28:30fa94f7341c 3210
wim 28:30fa94f7341c 3211 // Set RS pin
wim 28:30fa94f7341c 3212 // Used for mbed pins, I2C bus expander or SPI shiftregister and native I2C or SPI
wim 28:30fa94f7341c 3213 void TextLCD_I2C_N::_setRS(bool value) {
wim 30:033048611c01 3214 // The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
wim 30:033048611c01 3215 // Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
wim 30:033048611c01 3216 // Co RS RW 0 0 0 0 0 command or data
wim 30:033048611c01 3217 //
wim 30:033048611c01 3218 // C0=1 indicates that another controlbyte will follow after the next data or command byte
wim 30:033048611c01 3219 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 30:033048611c01 3220 // RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
wim 30:033048611c01 3221 // Many native I2C controllers dont support this option and it is not used by this lib.
wim 30:033048611c01 3222 //
wim 30:033048611c01 3223
wim 28:30fa94f7341c 3224 if (value) {
wim 28:30fa94f7341c 3225 _controlbyte = 0x40; // Next byte is data, No more control bytes will follow
wim 28:30fa94f7341c 3226 }
wim 28:30fa94f7341c 3227 else {
wim 28:30fa94f7341c 3228 _controlbyte = 0x00; // Next byte is command, No more control bytes will follow
wim 28:30fa94f7341c 3229 }
wim 28:30fa94f7341c 3230 }
wim 28:30fa94f7341c 3231
wim 28:30fa94f7341c 3232 // Set BL pin
wim 28:30fa94f7341c 3233 void TextLCD_I2C_N::_setBL(bool value) {
wim 28:30fa94f7341c 3234 if (_bl) {
wim 28:30fa94f7341c 3235 _bl->write(value);
wim 28:30fa94f7341c 3236 }
wim 28:30fa94f7341c 3237 }
wim 29:a3663151aa65 3238
wim 29:a3663151aa65 3239 // Not used in this mode
wim 29:a3663151aa65 3240 void TextLCD_I2C_N::_setData(int value) {
wim 29:a3663151aa65 3241 }
wim 29:a3663151aa65 3242
wim 28:30fa94f7341c 3243 // Write a byte using I2C
wim 28:30fa94f7341c 3244 void TextLCD_I2C_N::_writeByte(int value) {
wim 30:033048611c01 3245 // The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
wim 30:033048611c01 3246 // Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
wim 30:033048611c01 3247 // Co RS RW 0 0 0 0 0 command or data
wim 30:033048611c01 3248 //
wim 30:033048611c01 3249 // C0=1 indicates that another controlbyte will follow after the next data or command byte
wim 30:033048611c01 3250 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 30:033048611c01 3251 // RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
wim 30:033048611c01 3252 // Many native I2C controllers dont support this option and it is not used by this lib.
wim 30:033048611c01 3253 //
wim 28:30fa94f7341c 3254 char data[] = {_controlbyte, value};
wim 28:30fa94f7341c 3255
wim 32:59c4b8f648d4 3256 #if(LCD_I2C_ACK==1)
wim 32:59c4b8f648d4 3257 //Controllers that support ACK
wim 30:033048611c01 3258 _i2c->write(_slaveAddress, data, 2);
wim 32:59c4b8f648d4 3259 #else
wim 32:59c4b8f648d4 3260 //Controllers that dont support ACK
wim 37:ce348c002929 3261 //Note: This may be issue with some mbed platforms that dont fully/correctly support I2C byte operations.
wim 32:59c4b8f648d4 3262 _i2c->start();
wim 32:59c4b8f648d4 3263 _i2c->write(_slaveAddress);
wim 32:59c4b8f648d4 3264 _i2c->write(data[0]);
wim 32:59c4b8f648d4 3265 _i2c->write(data[1]);
wim 32:59c4b8f648d4 3266 _i2c->stop();
wim 32:59c4b8f648d4 3267 #endif
wim 28:30fa94f7341c 3268 }
wim 34:e5a0dcb43ecc 3269 #endif /* Native I2C */
wim 28:30fa94f7341c 3270 //-------- End TextLCD_I2C_N ------------
wim 28:30fa94f7341c 3271
wim 28:30fa94f7341c 3272
wim 25:6162b31128c9 3273 //--------- Start TextLCD_SPI_N ---------
wim 34:e5a0dcb43ecc 3274 #if(LCD_SPI_N == 1) /* Native SPI bus */
wim 30:033048611c01 3275 /** Create a TextLCD interface using a controller with a native SPI4 interface
Sissors 24:fb3399713710 3276 *
Sissors 24:fb3399713710 3277 * @param spi SPI Bus
Sissors 24:fb3399713710 3278 * @param cs chip select pin (active low)
wim 25:6162b31128c9 3279 * @param rs Instruction/data control line
Sissors 24:fb3399713710 3280 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 25:6162b31128c9 3281 * @param bl Backlight control line (optional, default = NC)
wim 26:bd897a001012 3282 * @param ctrl LCD controller (default = ST7032_3V3)
wim 25:6162b31128c9 3283 */
wim 25:6162b31128c9 3284 TextLCD_SPI_N::TextLCD_SPI_N(SPI *spi, PinName cs, PinName rs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 25:6162b31128c9 3285 TextLCD_Base(type, ctrl),
wim 25:6162b31128c9 3286 _spi(spi),
wim 25:6162b31128c9 3287 _cs(cs),
wim 25:6162b31128c9 3288 _rs(rs) {
Sissors 24:fb3399713710 3289
wim 32:59c4b8f648d4 3290 // Init CS
wim 32:59c4b8f648d4 3291 _cs = 1;
wim 32:59c4b8f648d4 3292
wim 36:9f5f86dfd44a 3293 // Setup the spi for 8 bit data, high steady state clock,
wim 36:9f5f86dfd44a 3294 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 36:9f5f86dfd44a 3295 // _spi->format(8,3);
wim 37:ce348c002929 3296 // _spi->frequency(500000);
wim 36:9f5f86dfd44a 3297 // _spi->frequency(1000000);
wim 36:9f5f86dfd44a 3298
Sissors 24:fb3399713710 3299 // Setup the spi for 8 bit data, low steady state clock,
Sissors 24:fb3399713710 3300 // rising edge capture, with a 500KHz or 1MHz clock rate
Sissors 24:fb3399713710 3301 _spi->format(8,0);
wim 36:9f5f86dfd44a 3302 // _spi->frequency(500000);
Sissors 24:fb3399713710 3303 _spi->frequency(1000000);
wim 36:9f5f86dfd44a 3304
Sissors 24:fb3399713710 3305 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
Sissors 24:fb3399713710 3306 if (bl != NC) {
Sissors 24:fb3399713710 3307 _bl = new DigitalOut(bl); //Construct new pin
Sissors 24:fb3399713710 3308 _bl->write(0); //Deactivate
Sissors 24:fb3399713710 3309 }
Sissors 24:fb3399713710 3310 else {
Sissors 24:fb3399713710 3311 // No Hardware Backlight pin
Sissors 24:fb3399713710 3312 _bl = NULL; //Construct dummy pin
Sissors 24:fb3399713710 3313 }
wim 30:033048611c01 3314
wim 30:033048611c01 3315 //Sanity check
wim 30:033048611c01 3316 if (_ctrl & LCD_C_SPI4) {
wim 36:9f5f86dfd44a 3317 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 36:9f5f86dfd44a 3318 // ST7070 must set datalength to 8 bits!
wim 30:033048611c01 3319 }
wim 30:033048611c01 3320 else {
wim 30:033048611c01 3321 error("Error: LCD Controller type does not support native SPI4 interface\n\r");
wim 30:033048611c01 3322 }
Sissors 24:fb3399713710 3323 }
Sissors 24:fb3399713710 3324
wim 25:6162b31128c9 3325 TextLCD_SPI_N::~TextLCD_SPI_N() {
Sissors 24:fb3399713710 3326 if (_bl != NULL) {delete _bl;} // BL pin
Sissors 24:fb3399713710 3327 }
Sissors 24:fb3399713710 3328
Sissors 24:fb3399713710 3329 // Not used in this mode
wim 25:6162b31128c9 3330 void TextLCD_SPI_N::_setEnable(bool value) {
Sissors 24:fb3399713710 3331 }
Sissors 24:fb3399713710 3332
Sissors 24:fb3399713710 3333 // Set RS pin
wim 36:9f5f86dfd44a 3334 // Used for mbed pins, I2C bus expander or SPI shiftregister, SPI_N
wim 25:6162b31128c9 3335 void TextLCD_SPI_N::_setRS(bool value) {
Sissors 24:fb3399713710 3336 _rs = value;
Sissors 24:fb3399713710 3337 }
Sissors 24:fb3399713710 3338
Sissors 24:fb3399713710 3339 // Set BL pin
wim 25:6162b31128c9 3340 void TextLCD_SPI_N::_setBL(bool value) {
wim 26:bd897a001012 3341 if (_bl) {
Sissors 24:fb3399713710 3342 _bl->write(value);
wim 26:bd897a001012 3343 }
Sissors 24:fb3399713710 3344 }
Sissors 24:fb3399713710 3345
wim 29:a3663151aa65 3346 // Not used in this mode
wim 29:a3663151aa65 3347 void TextLCD_SPI_N::_setData(int value) {
wim 29:a3663151aa65 3348 }
wim 29:a3663151aa65 3349
Sissors 24:fb3399713710 3350 // Write a byte using SPI
wim 25:6162b31128c9 3351 void TextLCD_SPI_N::_writeByte(int value) {
Sissors 24:fb3399713710 3352 _cs = 0;
Sissors 24:fb3399713710 3353 wait_us(1);
Sissors 24:fb3399713710 3354 _spi->write(value);
Sissors 24:fb3399713710 3355 wait_us(1);
Sissors 24:fb3399713710 3356 _cs = 1;
Sissors 24:fb3399713710 3357 }
wim 34:e5a0dcb43ecc 3358 #endif /* Native SPI bus */
wim 25:6162b31128c9 3359 //-------- End TextLCD_SPI_N ------------
wim 21:9eb628d9e164 3360
wim 21:9eb628d9e164 3361
wim 36:9f5f86dfd44a 3362 //-------- Start TextLCD_SPI_N_3_8 --------
wim 36:9f5f86dfd44a 3363 #if(LCD_SPI_N_3_8 == 1) /* Native SPI bus */
wim 36:9f5f86dfd44a 3364
wim 36:9f5f86dfd44a 3365 /** Create a TextLCD interface using a controller with a native SPI3 8 bits interface
wim 36:9f5f86dfd44a 3366 * This mode is supported by ST7070. Note that implementation in TexTLCD is not very efficient due to
wim 36:9f5f86dfd44a 3367 * structure of the TextLCD library: each databyte is written separately and requires a separate 'count command' set to 1 byte.
wim 36:9f5f86dfd44a 3368 *
wim 36:9f5f86dfd44a 3369 * @param spi SPI Bus
wim 36:9f5f86dfd44a 3370 * @param cs chip select pin (active low)
wim 36:9f5f86dfd44a 3371 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 36:9f5f86dfd44a 3372 * @param bl Backlight control line (optional, default = NC)
wim 36:9f5f86dfd44a 3373 * @param ctrl LCD controller (default = ST7070)
wim 36:9f5f86dfd44a 3374 */
wim 36:9f5f86dfd44a 3375 TextLCD_SPI_N_3_8::TextLCD_SPI_N_3_8(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 36:9f5f86dfd44a 3376 TextLCD_Base(type, ctrl),
wim 36:9f5f86dfd44a 3377 _spi(spi),
wim 36:9f5f86dfd44a 3378 _cs(cs) {
wim 36:9f5f86dfd44a 3379
wim 36:9f5f86dfd44a 3380 // Init CS
wim 36:9f5f86dfd44a 3381 _cs = 1;
wim 36:9f5f86dfd44a 3382
wim 36:9f5f86dfd44a 3383 // Setup the spi for 8 bit data, high steady state clock,
wim 36:9f5f86dfd44a 3384 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 36:9f5f86dfd44a 3385 // _spi->format(8,3);
wim 37:ce348c002929 3386 // _spi->frequency(500000);
wim 36:9f5f86dfd44a 3387 // _spi->frequency(1000000);
wim 36:9f5f86dfd44a 3388
wim 36:9f5f86dfd44a 3389 // Setup the spi for 8 bit data, low steady state clock,
wim 36:9f5f86dfd44a 3390 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 36:9f5f86dfd44a 3391 _spi->format(8,0);
wim 36:9f5f86dfd44a 3392 // _spi->frequency(500000);
wim 36:9f5f86dfd44a 3393 _spi->frequency(1000000);
wim 36:9f5f86dfd44a 3394
wim 36:9f5f86dfd44a 3395
wim 36:9f5f86dfd44a 3396 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 36:9f5f86dfd44a 3397 if (bl != NC) {
wim 36:9f5f86dfd44a 3398 _bl = new DigitalOut(bl); //Construct new pin
wim 36:9f5f86dfd44a 3399 _bl->write(0); //Deactivate
wim 36:9f5f86dfd44a 3400 }
wim 36:9f5f86dfd44a 3401 else {
wim 36:9f5f86dfd44a 3402 // No Hardware Backlight pin
wim 36:9f5f86dfd44a 3403 _bl = NULL; //Construct dummy pin
wim 36:9f5f86dfd44a 3404 }
wim 36:9f5f86dfd44a 3405
wim 36:9f5f86dfd44a 3406 //Sanity check
wim 36:9f5f86dfd44a 3407 if (_ctrl & LCD_C_SPI3_8) {
wim 36:9f5f86dfd44a 3408 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 36:9f5f86dfd44a 3409 }
wim 36:9f5f86dfd44a 3410 else {
wim 36:9f5f86dfd44a 3411 error("Error: LCD Controller type does not support native SPI3 8 bits interface\n\r");
wim 36:9f5f86dfd44a 3412 }
wim 36:9f5f86dfd44a 3413 }
wim 36:9f5f86dfd44a 3414
wim 36:9f5f86dfd44a 3415 TextLCD_SPI_N_3_8::~TextLCD_SPI_N_3_8() {
wim 36:9f5f86dfd44a 3416 if (_bl != NULL) {delete _bl;} // BL pin
wim 36:9f5f86dfd44a 3417 }
wim 36:9f5f86dfd44a 3418
wim 36:9f5f86dfd44a 3419 // Not used in this mode
wim 36:9f5f86dfd44a 3420 void TextLCD_SPI_N_3_8::_setEnable(bool value) {
wim 36:9f5f86dfd44a 3421 }
wim 36:9f5f86dfd44a 3422
wim 36:9f5f86dfd44a 3423 // Used for mbed pins, I2C bus expander or SPI shiftregister, SPI_N
wim 36:9f5f86dfd44a 3424 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 36:9f5f86dfd44a 3425 void TextLCD_SPI_N_3_8::_setRS(bool value) {
wim 36:9f5f86dfd44a 3426
wim 36:9f5f86dfd44a 3427 if (value) {
wim 36:9f5f86dfd44a 3428 _controlbyte = 0x01; // Next byte is data, No more control bytes will follow
wim 36:9f5f86dfd44a 3429 }
wim 36:9f5f86dfd44a 3430 else {
wim 36:9f5f86dfd44a 3431 _controlbyte = 0x00; // Next byte is command, No more control bytes will follow
wim 36:9f5f86dfd44a 3432 }
wim 36:9f5f86dfd44a 3433 }
wim 36:9f5f86dfd44a 3434
wim 36:9f5f86dfd44a 3435 // Set BL pin
wim 36:9f5f86dfd44a 3436 void TextLCD_SPI_N_3_8::_setBL(bool value) {
wim 36:9f5f86dfd44a 3437 if (_bl) {
wim 36:9f5f86dfd44a 3438 _bl->write(value);
wim 36:9f5f86dfd44a 3439 }
wim 36:9f5f86dfd44a 3440 }
wim 36:9f5f86dfd44a 3441
wim 36:9f5f86dfd44a 3442 // Not used in this mode
wim 36:9f5f86dfd44a 3443 void TextLCD_SPI_N_3_8::_setData(int value) {
wim 36:9f5f86dfd44a 3444 }
wim 36:9f5f86dfd44a 3445
wim 36:9f5f86dfd44a 3446 // Write a byte using SPI3 8 bits mode (ST7070)
wim 36:9f5f86dfd44a 3447 void TextLCD_SPI_N_3_8::_writeByte(int value) {
wim 36:9f5f86dfd44a 3448
wim 36:9f5f86dfd44a 3449 if (_controlbyte == 0x00) { // Byte is command
wim 36:9f5f86dfd44a 3450 _cs = 0;
wim 36:9f5f86dfd44a 3451 wait_us(1);
wim 36:9f5f86dfd44a 3452 _spi->write(value);
wim 36:9f5f86dfd44a 3453 wait_us(1);
wim 36:9f5f86dfd44a 3454 _cs = 1;
wim 36:9f5f86dfd44a 3455 }
wim 36:9f5f86dfd44a 3456 else { // Byte is data
wim 36:9f5f86dfd44a 3457 // Select Extended Instr Set
wim 36:9f5f86dfd44a 3458 _cs = 0;
wim 36:9f5f86dfd44a 3459 wait_us(1);
wim 36:9f5f86dfd44a 3460 _spi->write(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1));
wim 36:9f5f86dfd44a 3461 wait_us(1);
wim 36:9f5f86dfd44a 3462 _cs = 1;
wim 36:9f5f86dfd44a 3463
wim 36:9f5f86dfd44a 3464 wait_us(40); // Wait until command has finished...
wim 36:9f5f86dfd44a 3465
wim 36:9f5f86dfd44a 3466 // Set Count to 1 databyte
wim 36:9f5f86dfd44a 3467 _cs = 0;
wim 36:9f5f86dfd44a 3468 wait_us(1);
wim 36:9f5f86dfd44a 3469 _spi->write(0x80); // Set display data length, 1 L6 L5 L4 L3 L2 L1 L0 (Instr Set = 1)
wim 36:9f5f86dfd44a 3470 wait_us(1);
wim 36:9f5f86dfd44a 3471 _cs = 1;
wim 36:9f5f86dfd44a 3472
wim 36:9f5f86dfd44a 3473 wait_us(40);
wim 36:9f5f86dfd44a 3474
wim 36:9f5f86dfd44a 3475 // Write 1 databyte
wim 36:9f5f86dfd44a 3476 _cs = 0;
wim 36:9f5f86dfd44a 3477 wait_us(1);
wim 36:9f5f86dfd44a 3478 _spi->write(value); // Write data (Instr Set = 1)
wim 36:9f5f86dfd44a 3479 wait_us(1);
wim 36:9f5f86dfd44a 3480 _cs = 1;
wim 36:9f5f86dfd44a 3481
wim 36:9f5f86dfd44a 3482 wait_us(40);
wim 36:9f5f86dfd44a 3483
wim 36:9f5f86dfd44a 3484 // Select Standard Instr Set
wim 36:9f5f86dfd44a 3485 _cs = 0;
wim 36:9f5f86dfd44a 3486 wait_us(1);
wim 36:9f5f86dfd44a 3487 _spi->write(0x20 | _function); // Set function, 0 0 1 DL N EXT=0 x x (Select Instr Set = 0));
wim 36:9f5f86dfd44a 3488 wait_us(1);
wim 36:9f5f86dfd44a 3489 _cs = 1;
wim 36:9f5f86dfd44a 3490 }
wim 36:9f5f86dfd44a 3491 }
wim 36:9f5f86dfd44a 3492 #endif /* Native SPI bus */
wim 36:9f5f86dfd44a 3493 //------- End TextLCD_SPI_N_3_8 -----------
wim 36:9f5f86dfd44a 3494
wim 36:9f5f86dfd44a 3495
wim 30:033048611c01 3496 //-------- Start TextLCD_SPI_N_3_9 --------
wim 34:e5a0dcb43ecc 3497 #if(LCD_SPI_N_3_9 == 1) /* Native SPI bus */
wim 34:e5a0dcb43ecc 3498 //Code checked out on logic analyser. Not yet tested on hardware..
wim 30:033048611c01 3499
wim 30:033048611c01 3500 /** Create a TextLCD interface using a controller with a native SPI3 9 bits interface
wim 30:033048611c01 3501 *
wim 30:033048611c01 3502 * @param spi SPI Bus
wim 30:033048611c01 3503 * @param cs chip select pin (active low)
wim 30:033048611c01 3504 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 30:033048611c01 3505 * @param bl Backlight control line (optional, default = NC)
wim 30:033048611c01 3506 * @param ctrl LCD controller (default = AIP31068)
wim 30:033048611c01 3507 */
wim 30:033048611c01 3508 TextLCD_SPI_N_3_9::TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 30:033048611c01 3509 TextLCD_Base(type, ctrl),
wim 30:033048611c01 3510 _spi(spi),
wim 33:900a94bc7585 3511 _cs(cs) {
wim 32:59c4b8f648d4 3512
wim 32:59c4b8f648d4 3513 // Init CS
wim 32:59c4b8f648d4 3514 _cs = 1;
wim 32:59c4b8f648d4 3515
wim 34:e5a0dcb43ecc 3516 // Setup the spi for 9 bit data, high steady state clock,
wim 30:033048611c01 3517 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 32:59c4b8f648d4 3518 _spi->format(9,3);
wim 30:033048611c01 3519 _spi->frequency(1000000);
wim 30:033048611c01 3520
wim 30:033048611c01 3521 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 30:033048611c01 3522 if (bl != NC) {
wim 30:033048611c01 3523 _bl = new DigitalOut(bl); //Construct new pin
wim 30:033048611c01 3524 _bl->write(0); //Deactivate
wim 30:033048611c01 3525 }
wim 30:033048611c01 3526 else {
wim 30:033048611c01 3527 // No Hardware Backlight pin
wim 30:033048611c01 3528 _bl = NULL; //Construct dummy pin
wim 30:033048611c01 3529 }
wim 30:033048611c01 3530
wim 30:033048611c01 3531 //Sanity check
wim 36:9f5f86dfd44a 3532 if (_ctrl & LCD_C_SPI3_9) {
wim 36:9f5f86dfd44a 3533 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 30:033048611c01 3534 }
wim 30:033048611c01 3535 else {
wim 30:033048611c01 3536 error("Error: LCD Controller type does not support native SPI3 9 bits interface\n\r");
wim 30:033048611c01 3537 }
wim 30:033048611c01 3538 }
wim 30:033048611c01 3539
wim 30:033048611c01 3540 TextLCD_SPI_N_3_9::~TextLCD_SPI_N_3_9() {
wim 30:033048611c01 3541 if (_bl != NULL) {delete _bl;} // BL pin
wim 30:033048611c01 3542 }
wim 30:033048611c01 3543
wim 30:033048611c01 3544 // Not used in this mode
wim 30:033048611c01 3545 void TextLCD_SPI_N_3_9::_setEnable(bool value) {
wim 30:033048611c01 3546 }
wim 30:033048611c01 3547
wim 30:033048611c01 3548 // Set RS pin
wim 30:033048611c01 3549 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 30:033048611c01 3550 void TextLCD_SPI_N_3_9::_setRS(bool value) {
wim 30:033048611c01 3551 // The controlbits define the meaning of the next byte. This next byte can either be data or command.
wim 30:033048611c01 3552 // b8 b7...........b0
wim 30:033048611c01 3553 // RS command or data
wim 30:033048611c01 3554 //
wim 30:033048611c01 3555 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 30:033048611c01 3556 //
wim 30:033048611c01 3557
wim 30:033048611c01 3558 if (value) {
wim 30:033048611c01 3559 _controlbyte = 0x01; // Next byte is data
wim 30:033048611c01 3560 }
wim 30:033048611c01 3561 else {
wim 30:033048611c01 3562 _controlbyte = 0x00; // Next byte is command
wim 34:e5a0dcb43ecc 3563 }
wim 30:033048611c01 3564 }
wim 30:033048611c01 3565
wim 30:033048611c01 3566 // Set BL pin
wim 30:033048611c01 3567 void TextLCD_SPI_N_3_9::_setBL(bool value) {
wim 30:033048611c01 3568 if (_bl) {
wim 30:033048611c01 3569 _bl->write(value);
wim 30:033048611c01 3570 }
wim 30:033048611c01 3571 }
wim 30:033048611c01 3572
wim 30:033048611c01 3573 // Not used in this mode
wim 30:033048611c01 3574 void TextLCD_SPI_N_3_9::_setData(int value) {
wim 30:033048611c01 3575 }
wim 30:033048611c01 3576
wim 30:033048611c01 3577 // Write a byte using SPI3 9 bits mode
wim 30:033048611c01 3578 void TextLCD_SPI_N_3_9::_writeByte(int value) {
wim 30:033048611c01 3579 _cs = 0;
wim 30:033048611c01 3580 wait_us(1);
wim 30:033048611c01 3581 _spi->write( (_controlbyte << 8) | (value & 0xFF));
wim 30:033048611c01 3582 wait_us(1);
wim 30:033048611c01 3583 _cs = 1;
wim 30:033048611c01 3584 }
wim 34:e5a0dcb43ecc 3585 #endif /* Native SPI bus */
wim 30:033048611c01 3586 //------- End TextLCD_SPI_N_3_9 -----------
wim 34:e5a0dcb43ecc 3587
wim 34:e5a0dcb43ecc 3588
wim 30:033048611c01 3589 //------- Start TextLCD_SPI_N_3_10 --------
wim 34:e5a0dcb43ecc 3590 #if(LCD_SPI_N_3_10 == 1) /* Native SPI bus */
wim 30:033048611c01 3591
wim 30:033048611c01 3592 /** Create a TextLCD interface using a controller with a native SPI3 10 bits interface
wim 30:033048611c01 3593 *
wim 30:033048611c01 3594 * @param spi SPI Bus
wim 30:033048611c01 3595 * @param cs chip select pin (active low)
wim 30:033048611c01 3596 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 30:033048611c01 3597 * @param bl Backlight control line (optional, default = NC)
wim 30:033048611c01 3598 * @param ctrl LCD controller (default = AIP31068)
wim 30:033048611c01 3599 */
wim 30:033048611c01 3600 TextLCD_SPI_N_3_10::TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 30:033048611c01 3601 TextLCD_Base(type, ctrl),
wim 30:033048611c01 3602 _spi(spi),
wim 30:033048611c01 3603 _cs(cs) {
wim 30:033048611c01 3604
wim 32:59c4b8f648d4 3605 // Init CS
wim 32:59c4b8f648d4 3606 _cs = 1;
wim 32:59c4b8f648d4 3607
wim 30:033048611c01 3608 // Setup the spi for 10 bit data, low steady state clock,
wim 30:033048611c01 3609 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 30:033048611c01 3610 _spi->format(10,0);
wim 30:033048611c01 3611 _spi->frequency(1000000);
wim 30:033048611c01 3612
wim 30:033048611c01 3613 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 30:033048611c01 3614 if (bl != NC) {
wim 30:033048611c01 3615 _bl = new DigitalOut(bl); //Construct new pin
wim 30:033048611c01 3616 _bl->write(0); //Deactivate
wim 30:033048611c01 3617 }
wim 30:033048611c01 3618 else {
wim 30:033048611c01 3619 // No Hardware Backlight pin
wim 30:033048611c01 3620 _bl = NULL; //Construct dummy pin
wim 30:033048611c01 3621 }
wim 30:033048611c01 3622
wim 30:033048611c01 3623 //Sanity check
wim 30:033048611c01 3624 if (_ctrl & LCD_C_SPI3_10) {
wim 36:9f5f86dfd44a 3625 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 30:033048611c01 3626 }
wim 30:033048611c01 3627 else {
wim 30:033048611c01 3628 error("Error: LCD Controller type does not support native SPI3 10 bits interface\n\r");
wim 30:033048611c01 3629 }
wim 30:033048611c01 3630 }
wim 30:033048611c01 3631
wim 30:033048611c01 3632 TextLCD_SPI_N_3_10::~TextLCD_SPI_N_3_10() {
wim 30:033048611c01 3633 if (_bl != NULL) {delete _bl;} // BL pin
wim 30:033048611c01 3634 }
wim 30:033048611c01 3635
wim 30:033048611c01 3636 // Not used in this mode
wim 30:033048611c01 3637 void TextLCD_SPI_N_3_10::_setEnable(bool value) {
wim 30:033048611c01 3638 }
wim 30:033048611c01 3639
wim 30:033048611c01 3640 // Set RS pin
wim 30:033048611c01 3641 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 30:033048611c01 3642 void TextLCD_SPI_N_3_10::_setRS(bool value) {
wim 30:033048611c01 3643 // The controlbits define the meaning of the next byte. This next byte can either be data or command.
wim 30:033048611c01 3644 // b9 b8 b7...........b0
wim 30:033048611c01 3645 // RS RW command or data
wim 30:033048611c01 3646 //
wim 30:033048611c01 3647 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 30:033048611c01 3648 // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
wim 30:033048611c01 3649 //
wim 30:033048611c01 3650
wim 30:033048611c01 3651 if (value) {
wim 30:033048611c01 3652 _controlbyte = 0x02; // Next byte is data
wim 30:033048611c01 3653 }
wim 30:033048611c01 3654 else {
wim 30:033048611c01 3655 _controlbyte = 0x00; // Next byte is command
wim 34:e5a0dcb43ecc 3656 }
wim 30:033048611c01 3657 }
wim 30:033048611c01 3658
wim 30:033048611c01 3659 // Set BL pin
wim 30:033048611c01 3660 void TextLCD_SPI_N_3_10::_setBL(bool value) {
wim 30:033048611c01 3661 if (_bl) {
wim 30:033048611c01 3662 _bl->write(value);
wim 30:033048611c01 3663 }
wim 30:033048611c01 3664 }
wim 30:033048611c01 3665
wim 30:033048611c01 3666 // Not used in this mode
wim 30:033048611c01 3667 void TextLCD_SPI_N_3_10::_setData(int value) {
wim 30:033048611c01 3668 }
wim 30:033048611c01 3669
wim 30:033048611c01 3670 // Write a byte using SPI3 10 bits mode
wim 30:033048611c01 3671 void TextLCD_SPI_N_3_10::_writeByte(int value) {
wim 30:033048611c01 3672 _cs = 0;
wim 30:033048611c01 3673 wait_us(1);
wim 30:033048611c01 3674 _spi->write( (_controlbyte << 8) | (value & 0xFF));
wim 30:033048611c01 3675 wait_us(1);
wim 30:033048611c01 3676 _cs = 1;
wim 30:033048611c01 3677 }
wim 34:e5a0dcb43ecc 3678 #endif /* Native SPI bus */
wim 30:033048611c01 3679 //------- End TextLCD_SPI_N_3_10 ----------
wim 34:e5a0dcb43ecc 3680
wim 32:59c4b8f648d4 3681
wim 32:59c4b8f648d4 3682 //------- Start TextLCD_SPI_N_3_16 --------
wim 34:e5a0dcb43ecc 3683 #if(LCD_SPI_N_3_16 == 1) /* Native SPI bus */
wim 32:59c4b8f648d4 3684
wim 32:59c4b8f648d4 3685 /** Create a TextLCD interface using a controller with a native SPI3 16 bits interface
wim 32:59c4b8f648d4 3686 *
wim 32:59c4b8f648d4 3687 * @param spi SPI Bus
wim 32:59c4b8f648d4 3688 * @param cs chip select pin (active low)
wim 32:59c4b8f648d4 3689 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 32:59c4b8f648d4 3690 * @param bl Backlight control line (optional, default = NC)
wim 32:59c4b8f648d4 3691 * @param ctrl LCD controller (default = PT6314)
wim 32:59c4b8f648d4 3692 */
wim 32:59c4b8f648d4 3693 TextLCD_SPI_N_3_16::TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 32:59c4b8f648d4 3694 TextLCD_Base(type, ctrl),
wim 32:59c4b8f648d4 3695 _spi(spi),
wim 32:59c4b8f648d4 3696 _cs(cs) {
wim 32:59c4b8f648d4 3697
wim 32:59c4b8f648d4 3698 // Init CS
wim 32:59c4b8f648d4 3699 _cs = 1;
wim 32:59c4b8f648d4 3700
wim 32:59c4b8f648d4 3701 // Setup the spi for 8 bit data, low steady state clock,
wim 32:59c4b8f648d4 3702 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 32:59c4b8f648d4 3703 _spi->format(8,0);
wim 32:59c4b8f648d4 3704 _spi->frequency(1000000);
wim 32:59c4b8f648d4 3705
wim 32:59c4b8f648d4 3706 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 32:59c4b8f648d4 3707 if (bl != NC) {
wim 32:59c4b8f648d4 3708 _bl = new DigitalOut(bl); //Construct new pin
wim 32:59c4b8f648d4 3709 _bl->write(0); //Deactivate
wim 32:59c4b8f648d4 3710 }
wim 32:59c4b8f648d4 3711 else {
wim 32:59c4b8f648d4 3712 // No Hardware Backlight pin
wim 32:59c4b8f648d4 3713 _bl = NULL; //Construct dummy pin
wim 32:59c4b8f648d4 3714 }
wim 32:59c4b8f648d4 3715
wim 32:59c4b8f648d4 3716 //Sanity check
wim 32:59c4b8f648d4 3717 if (_ctrl & LCD_C_SPI3_16) {
wim 36:9f5f86dfd44a 3718 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 32:59c4b8f648d4 3719 }
wim 32:59c4b8f648d4 3720 else {
wim 32:59c4b8f648d4 3721 error("Error: LCD Controller type does not support native SPI3 16 bits interface\n\r");
wim 32:59c4b8f648d4 3722 }
wim 32:59c4b8f648d4 3723 }
wim 32:59c4b8f648d4 3724
wim 32:59c4b8f648d4 3725 TextLCD_SPI_N_3_16::~TextLCD_SPI_N_3_16() {
wim 32:59c4b8f648d4 3726 if (_bl != NULL) {delete _bl;} // BL pin
wim 32:59c4b8f648d4 3727 }
wim 32:59c4b8f648d4 3728
wim 32:59c4b8f648d4 3729 // Not used in this mode
wim 32:59c4b8f648d4 3730 void TextLCD_SPI_N_3_16::_setEnable(bool value) {
wim 32:59c4b8f648d4 3731 }
wim 32:59c4b8f648d4 3732
wim 32:59c4b8f648d4 3733 // Set RS pin
wim 32:59c4b8f648d4 3734 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 32:59c4b8f648d4 3735 void TextLCD_SPI_N_3_16::_setRS(bool value) {
wim 32:59c4b8f648d4 3736 // The 16bit mode is split in 2 bytes. The first byte is for synchronisation and controlbits. The controlbits define the meaning of the next byte.
wim 32:59c4b8f648d4 3737 // The 8 actual bits represent either a data or a command byte.
wim 32:59c4b8f648d4 3738 // b15 b14 b13 b12 b11 b10 b9 b8 - b7 b6 b5 b4 b3 b2 b1 b0
wim 32:59c4b8f648d4 3739 // 1 1 1 1 1 RW RS 0 d7 d6 d5 d4 d3 d2 d1 d0
wim 32:59c4b8f648d4 3740 //
wim 32:59c4b8f648d4 3741 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 32:59c4b8f648d4 3742 // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
wim 32:59c4b8f648d4 3743 //
wim 32:59c4b8f648d4 3744
wim 32:59c4b8f648d4 3745 if (value) {
wim 32:59c4b8f648d4 3746 _controlbyte = 0xFA; // Next byte is data
wim 32:59c4b8f648d4 3747 }
wim 32:59c4b8f648d4 3748 else {
wim 32:59c4b8f648d4 3749 _controlbyte = 0xF8; // Next byte is command
wim 32:59c4b8f648d4 3750 }
wim 32:59c4b8f648d4 3751 }
wim 32:59c4b8f648d4 3752
wim 32:59c4b8f648d4 3753 // Set BL pin
wim 32:59c4b8f648d4 3754 void TextLCD_SPI_N_3_16::_setBL(bool value) {
wim 32:59c4b8f648d4 3755 if (_bl) {
wim 32:59c4b8f648d4 3756 _bl->write(value);
wim 32:59c4b8f648d4 3757 }
wim 32:59c4b8f648d4 3758 }
wim 32:59c4b8f648d4 3759
wim 32:59c4b8f648d4 3760 // Not used in this mode
wim 32:59c4b8f648d4 3761 void TextLCD_SPI_N_3_16::_setData(int value) {
wim 32:59c4b8f648d4 3762 }
wim 34:e5a0dcb43ecc 3763
wim 32:59c4b8f648d4 3764 // Write a byte using SPI3 16 bits mode
wim 32:59c4b8f648d4 3765 void TextLCD_SPI_N_3_16::_writeByte(int value) {
wim 32:59c4b8f648d4 3766 _cs = 0;
wim 32:59c4b8f648d4 3767 wait_us(1);
wim 32:59c4b8f648d4 3768
wim 32:59c4b8f648d4 3769 _spi->write(_controlbyte);
wim 32:59c4b8f648d4 3770
wim 32:59c4b8f648d4 3771 _spi->write(value);
wim 32:59c4b8f648d4 3772
wim 32:59c4b8f648d4 3773 wait_us(1);
wim 32:59c4b8f648d4 3774 _cs = 1;
wim 32:59c4b8f648d4 3775 }
wim 34:e5a0dcb43ecc 3776 #endif /* Native SPI bus */
wim 32:59c4b8f648d4 3777 //------- End TextLCD_SPI_N_3_16 ----------
wim 34:e5a0dcb43ecc 3778
wim 34:e5a0dcb43ecc 3779
wim 32:59c4b8f648d4 3780 //------- Start TextLCD_SPI_N_3_24 --------
wim 34:e5a0dcb43ecc 3781 #if(LCD_SPI_N_3_24 == 1) /* Native SPI bus */
wim 32:59c4b8f648d4 3782
wim 32:59c4b8f648d4 3783 /** Create a TextLCD interface using a controller with a native SPI3 24 bits interface
wim 32:59c4b8f648d4 3784 *
wim 32:59c4b8f648d4 3785 * @param spi SPI Bus
wim 32:59c4b8f648d4 3786 * @param cs chip select pin (active low)
wim 32:59c4b8f648d4 3787 * @param type Sets the panel size/addressing mode (default = LCD16x2)
wim 32:59c4b8f648d4 3788 * @param bl Backlight control line (optional, default = NC)
wim 32:59c4b8f648d4 3789 * @param ctrl LCD controller (default = SSD1803)
wim 32:59c4b8f648d4 3790 */
wim 32:59c4b8f648d4 3791 TextLCD_SPI_N_3_24::TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
wim 32:59c4b8f648d4 3792 TextLCD_Base(type, ctrl),
wim 32:59c4b8f648d4 3793 _spi(spi),
wim 32:59c4b8f648d4 3794 _cs(cs) {
wim 32:59c4b8f648d4 3795
wim 32:59c4b8f648d4 3796 // Init CS
wim 32:59c4b8f648d4 3797 _cs = 1;
wim 32:59c4b8f648d4 3798
wim 34:e5a0dcb43ecc 3799 // Setup the spi for 8 bit data, high steady state clock,
wim 32:59c4b8f648d4 3800 // rising edge capture, with a 500KHz or 1MHz clock rate
wim 34:e5a0dcb43ecc 3801 _spi->format(8,3);
wim 32:59c4b8f648d4 3802 _spi->frequency(1000000);
wim 32:59c4b8f648d4 3803
wim 32:59c4b8f648d4 3804 // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
wim 32:59c4b8f648d4 3805 if (bl != NC) {
wim 32:59c4b8f648d4 3806 _bl = new DigitalOut(bl); //Construct new pin
wim 32:59c4b8f648d4 3807 _bl->write(0); //Deactivate
wim 32:59c4b8f648d4 3808 }
wim 32:59c4b8f648d4 3809 else {
wim 32:59c4b8f648d4 3810 // No Hardware Backlight pin
wim 32:59c4b8f648d4 3811 _bl = NULL; //Construct dummy pin
wim 32:59c4b8f648d4 3812 }
wim 32:59c4b8f648d4 3813
wim 32:59c4b8f648d4 3814 //Sanity check
wim 32:59c4b8f648d4 3815 if (_ctrl & LCD_C_SPI3_24) {
wim 36:9f5f86dfd44a 3816 _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
wim 32:59c4b8f648d4 3817 }
wim 32:59c4b8f648d4 3818 else {
wim 32:59c4b8f648d4 3819 error("Error: LCD Controller type does not support native SPI3 24 bits interface\n\r");
wim 32:59c4b8f648d4 3820 }
wim 32:59c4b8f648d4 3821 }
wim 32:59c4b8f648d4 3822
wim 32:59c4b8f648d4 3823 TextLCD_SPI_N_3_24::~TextLCD_SPI_N_3_24() {
wim 32:59c4b8f648d4 3824 if (_bl != NULL) {delete _bl;} // BL pin
wim 32:59c4b8f648d4 3825 }
wim 32:59c4b8f648d4 3826
wim 32:59c4b8f648d4 3827 // Not used in this mode
wim 32:59c4b8f648d4 3828 void TextLCD_SPI_N_3_24::_setEnable(bool value) {
wim 32:59c4b8f648d4 3829 }
wim 32:59c4b8f648d4 3830
wim 32:59c4b8f648d4 3831 // Set RS pin
wim 32:59c4b8f648d4 3832 // Used for mbed pins, I2C bus expander or SPI shiftregister
wim 32:59c4b8f648d4 3833 void TextLCD_SPI_N_3_24::_setRS(bool value) {
wim 32:59c4b8f648d4 3834 // The 24bit mode is split in 3 bytes. The first byte is for synchronisation and controlbits. The controlbits define the meaning of the next two bytes.
wim 32:59c4b8f648d4 3835 // Each byte encodes 4 actual bits. The 8 actual bits represent either a data or a command byte.
wim 32:59c4b8f648d4 3836 // b23 b22 b21 b20 b19 b18 b17 b16 - b15 b14 b13 b12 b11 b10 b9 b8 - b7 b6 b5 b4 b3 b2 b1 b0
wim 32:59c4b8f648d4 3837 // 1 1 1 1 1 RW RS 0 d0 d1 d2 d3 0 0 0 0 d4 d5 d6 d7 0 0 0 0
wim 32:59c4b8f648d4 3838 //
wim 32:59c4b8f648d4 3839 // RS=1 means that next byte is data, RS=0 means that next byte is command
wim 32:59c4b8f648d4 3840 // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
wim 32:59c4b8f648d4 3841 //
wim 32:59c4b8f648d4 3842 // Note: SPI3_24 expects LSB first. This is inconsistent with regular SPI convention (and hardware) that sends MSB first.
wim 32:59c4b8f648d4 3843
wim 32:59c4b8f648d4 3844 if (value) {
wim 32:59c4b8f648d4 3845 _controlbyte = 0xFA; // Next byte is data
wim 32:59c4b8f648d4 3846 }
wim 32:59c4b8f648d4 3847 else {
wim 32:59c4b8f648d4 3848 _controlbyte = 0xF8; // Next byte is command
wim 34:e5a0dcb43ecc 3849 }
wim 32:59c4b8f648d4 3850 }
wim 32:59c4b8f648d4 3851
wim 32:59c4b8f648d4 3852 // Set BL pin
wim 32:59c4b8f648d4 3853 void TextLCD_SPI_N_3_24::_setBL(bool value) {
wim 32:59c4b8f648d4 3854 if (_bl) {
wim 32:59c4b8f648d4 3855 _bl->write(value);
wim 32:59c4b8f648d4 3856 }
wim 32:59c4b8f648d4 3857 }
wim 32:59c4b8f648d4 3858
wim 32:59c4b8f648d4 3859 // Not used in this mode
wim 32:59c4b8f648d4 3860 void TextLCD_SPI_N_3_24::_setData(int value) {
wim 32:59c4b8f648d4 3861 }
wim 32:59c4b8f648d4 3862
wim 32:59c4b8f648d4 3863 //Mapping table to flip the bits around cause SPI3_24 expects LSB first.
wim 32:59c4b8f648d4 3864 const uint8_t map3_24[16] = {0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0};
wim 32:59c4b8f648d4 3865
wim 32:59c4b8f648d4 3866 // Write a byte using SPI3 24 bits mode
wim 32:59c4b8f648d4 3867 void TextLCD_SPI_N_3_24::_writeByte(int value) {
wim 32:59c4b8f648d4 3868 _cs = 0;
wim 32:59c4b8f648d4 3869 wait_us(1);
wim 32:59c4b8f648d4 3870 _spi->write(_controlbyte);
wim 32:59c4b8f648d4 3871
wim 32:59c4b8f648d4 3872 //Map and send the LSB nibble
wim 32:59c4b8f648d4 3873 _spi->write( map3_24[value & 0x0F]);
wim 32:59c4b8f648d4 3874
wim 32:59c4b8f648d4 3875 //Map and send the MSB nibble
wim 32:59c4b8f648d4 3876 _spi->write( map3_24[(value >> 4) & 0x0F]);
wim 32:59c4b8f648d4 3877
wim 32:59c4b8f648d4 3878 wait_us(1);
wim 32:59c4b8f648d4 3879 _cs = 1;
wim 32:59c4b8f648d4 3880 }
wim 34:e5a0dcb43ecc 3881 #endif /* Native SPI bus */
wim 32:59c4b8f648d4 3882 //------- End TextLCD_SPI_N_3_24 ----------