just a fork with another display choosen. LCD at D1 ROBOT shield seems to in YWROBOT configuration.
Fork of TextLCD by
TextLCD.cpp@32:59c4b8f648d4, 2014-08-22 (annotated)
- Committer:
- wim
- Date:
- Fri Aug 22 19:50:49 2014 +0000
- Revision:
- 32:59c4b8f648d4
- Parent:
- 31:ef31cd8a00d1
- Child:
- 33:900a94bc7585
Added support for controllers PCF2119 (native I2C) and SSD1803A, ST7036 (native I2C/SPI), added setContrast method (by JH1PJL) and setPower method for supported devices (eg ST7032i). Cleaned up Init method.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
simon | 1:ac48b187213c | 1 | /* mbed TextLCD Library, for a 4-bit LCD based on HD44780 |
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) |
simon | 1:ac48b187213c | 15 | * |
simon | 1:ac48b187213c | 16 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
simon | 1:ac48b187213c | 17 | * of this software and associated documentation files (the "Software"), to deal |
simon | 1:ac48b187213c | 18 | * in the Software without restriction, including without limitation the rights |
simon | 1:ac48b187213c | 19 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
simon | 1:ac48b187213c | 20 | * copies of the Software, and to permit persons to whom the Software is |
simon | 1:ac48b187213c | 21 | * furnished to do so, subject to the following conditions: |
simon | 1:ac48b187213c | 22 | * |
simon | 1:ac48b187213c | 23 | * The above copyright notice and this permission notice shall be included in |
simon | 1:ac48b187213c | 24 | * all copies or substantial portions of the Software. |
simon | 1:ac48b187213c | 25 | * |
simon | 1:ac48b187213c | 26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
simon | 1:ac48b187213c | 27 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
simon | 1:ac48b187213c | 28 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
simon | 1:ac48b187213c | 29 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
simon | 1:ac48b187213c | 30 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
simon | 1:ac48b187213c | 31 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
simon | 1:ac48b187213c | 32 | * THE SOFTWARE. |
simon | 1:ac48b187213c | 33 | */ |
simon | 1:ac48b187213c | 34 | |
simon | 1:ac48b187213c | 35 | #include "TextLCD.h" |
simon | 1:ac48b187213c | 36 | #include "mbed.h" |
simon | 1:ac48b187213c | 37 | |
wim | 30:033048611c01 | 38 | //For Testing only |
wim | 30:033048611c01 | 39 | //DigitalOut led1(LED1); |
wim | 30:033048611c01 | 40 | //DigitalOut led2(LED2); |
wim | 30:033048611c01 | 41 | // led2=!led2; |
wim | 29:a3663151aa65 | 42 | |
wim | 29:a3663151aa65 | 43 | |
wim | 30:033048611c01 | 44 | /** Some sample User Defined Chars 5x7 dots */ |
wim | 32:59c4b8f648d4 | 45 | //const char udc_ae[] = {0x00, 0x00, 0x1B, 0x05, 0x1F, 0x14, 0x1F, 0x00}; //æ |
wim | 32:59c4b8f648d4 | 46 | //const char udc_0e[] = {0x00, 0x00, 0x0E, 0x13, 0x15, 0x19, 0x0E, 0x00}; //ø |
wim | 32:59c4b8f648d4 | 47 | //const char udc_ao[] = {0x0E, 0x0A, 0x0E, 0x01, 0x0F, 0x11, 0x0F, 0x00}; //å |
wim | 32:59c4b8f648d4 | 48 | //const char udc_AE[] = {0x0F, 0x14, 0x14, 0x1F, 0x14, 0x14, 0x17, 0x00}; //Æ |
wim | 32:59c4b8f648d4 | 49 | //const char udc_0E[] = {0x0E, 0x13, 0x15, 0x15, 0x15, 0x19, 0x0E, 0x00}; //Ø |
wim | 32:59c4b8f648d4 | 50 | //const char udc_Ao[] = {0x0E, 0x0A, 0x0E, 0x11, 0x1F, 0x11, 0x11, 0x00}; //Å |
wim | 32:59c4b8f648d4 | 51 | //const char udc_PO[] = {0x04, 0x0A, 0x0A, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Open |
wim | 32:59c4b8f648d4 | 52 | //const char udc_PC[] = {0x1C, 0x10, 0x08, 0x1F, 0x1B, 0x1B, 0x1F, 0x00}; //Padlock Closed |
wim | 32:59c4b8f648d4 | 53 | |
wim | 32:59c4b8f648d4 | 54 | //const char udc_alpha[] = {0x00, 0x00, 0x0D, 0x12, 0x12, 0x12, 0x0D, 0x00}; //alpha |
wim | 32:59c4b8f648d4 | 55 | //const char udc_ohm[] = {0x0E, 0x11, 0x11, 0x11, 0x0A, 0x0A, 0x1B, 0x00}; //ohm |
wim | 32:59c4b8f648d4 | 56 | //const char udc_sigma[] = {0x1F, 0x08, 0x04, 0x02, 0x04, 0x08, 0x1F, 0x00}; //sigma |
wim | 32:59c4b8f648d4 | 57 | //const char udc_pi[] = {0x1F, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x00}; //pi |
wim | 32:59c4b8f648d4 | 58 | //const char udc_root[] = {0x07, 0x04, 0x04, 0x04, 0x14, 0x0C, 0x04, 0x00}; //root |
wim | 30:033048611c01 | 59 | |
wim | 30:033048611c01 | 60 | const char udc_0[] = {0x18, 0x14, 0x12, 0x11, 0x12, 0x14, 0x18, 0x00}; // |> |
wim | 30:033048611c01 | 61 | const char udc_1[] = {0x03, 0x05, 0x09, 0x11, 0x09, 0x05, 0x03, 0x00}; // <| |
wim | 30:033048611c01 | 62 | const char udc_2[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // | |
wim | 30:033048611c01 | 63 | const char udc_3[] = {0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00}; // || |
wim | 30:033048611c01 | 64 | const char udc_4[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x00}; // ||| |
wim | 30:033048611c01 | 65 | const char udc_5[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x00}; // = |
wim | 30:033048611c01 | 66 | const char udc_6[] = {0x15, 0x0a, 0x15, 0x0a, 0x15, 0x0a, 0x15, 0x00}; // checkerboard |
wim | 30:033048611c01 | 67 | const char udc_7[] = {0x10, 0x08, 0x04, 0x02, 0x01, 0x00, 0x10, 0x00}; // \ |
wim | 30:033048611c01 | 68 | |
wim | 30:033048611c01 | 69 | const char udc_degr[] = {0x06, 0x09, 0x09, 0x06, 0x00, 0x00, 0x00, 0x00}; // Degree symbol |
wim | 30:033048611c01 | 70 | |
wim | 30:033048611c01 | 71 | const char udc_TM_T[] = {0x1F, 0x04, 0x04, 0x04, 0x00, 0x00, 0x00, 0x00}; // Trademark T |
wim | 30:033048611c01 | 72 | const char udc_TM_M[] = {0x11, 0x1B, 0x15, 0x11, 0x00, 0x00, 0x00, 0x00}; // Trademark M |
wim | 30:033048611c01 | 73 | |
wim | 30:033048611c01 | 74 | //const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full |
wim | 30:033048611c01 | 75 | //const char udc_Bat_Ha[] = {0x0E, 0x11, 0x13, 0x17, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half |
wim | 30:033048611c01 | 76 | //const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x00}; // Battery Low |
wim | 30:033048611c01 | 77 | const char udc_Bat_Hi[] = {0x0E, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Full |
wim | 30:033048611c01 | 78 | const char udc_Bat_Ha[] = {0x0E, 0x11, 0x11, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Battery Half |
wim | 30:033048611c01 | 79 | const char udc_Bat_Lo[] = {0x0E, 0x11, 0x11, 0x11, 0x11, 0x1F, 0x1F, 0x00}; // Battery Low |
wim | 30:033048611c01 | 80 | const char udc_AC[] = {0x0A, 0x0A, 0x1F, 0x11, 0x0E, 0x04, 0x04, 0x00}; // AC Power |
wim | 30:033048611c01 | 81 | |
wim | 30:033048611c01 | 82 | //const char udc_smiley[] = {0x00, 0x0A, 0x00, 0x04, 0x11, 0x0E, 0x00, 0x00}; // Smiley |
wim | 30:033048611c01 | 83 | //const char udc_droopy[] = {0x00, 0x0A, 0x00, 0x04, 0x00, 0x0E, 0x11, 0x00}; // Droopey |
wim | 30:033048611c01 | 84 | //const char udc_note[] = {0x01, 0x03, 0x05, 0x09, 0x0B, 0x1B, 0x18, 0x00}; // Note |
wim | 30:033048611c01 | 85 | |
wim | 30:033048611c01 | 86 | //const char udc_bar_1[] = {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x00}; // Bar 1 |
wim | 30:033048611c01 | 87 | //const char udc_bar_2[] = {0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00}; // Bar 11 |
wim | 30:033048611c01 | 88 | //const char udc_bar_3[] = {0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x1C, 0x00}; // Bar 111 |
wim | 30:033048611c01 | 89 | //const char udc_bar_4[] = {0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x17, 0x00}; // Bar 1111 |
wim | 30:033048611c01 | 90 | //const char udc_bar_5[] = {0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00}; // Bar 11111 |
wim | 30:033048611c01 | 91 | |
wim | 30:033048611c01 | 92 | //const char udc_ch_1[] = {0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00}; // Hor bars 4 |
wim | 30:033048611c01 | 93 | //const char udc_ch_2[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f}; // Hor bars 4 (inverted) |
wim | 30:033048611c01 | 94 | //const char udc_ch_3[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15}; // Ver bars 3 |
wim | 30:033048611c01 | 95 | //const char udc_ch_4[] = {0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a}; // Ver bars 3 (inverted) |
wim | 30:033048611c01 | 96 | //const char udc_ch_yr[] = {0x08, 0x0f, 0x12, 0x0f, 0x0a, 0x1f, 0x02, 0x02}; // Year (kana) |
wim | 30:033048611c01 | 97 | //const char udc_ch_mo[] = {0x0f, 0x09, 0x0f, 0x09, 0x0f, 0x09, 0x09, 0x13}; // Month (kana) |
wim | 30:033048611c01 | 98 | //const char udc_ch_dy[] = {0x1f, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, 0x1F}; // Day (kana) |
wim | 30:033048611c01 | 99 | //const char udc_ch_mi[] = {0x0C, 0x0a, 0x11, 0x1f, 0x09, 0x09, 0x09, 0x13}; // minute (kana) |
wim | 30:033048611c01 | 100 | |
wim | 32:59c4b8f648d4 | 101 | const char udc_None[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
wim | 32:59c4b8f648d4 | 102 | const char udc_All[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
wim | 30:033048611c01 | 103 | |
wim | 21:9eb628d9e164 | 104 | /** Create a TextLCD_Base interface |
wim | 15:b70ebfffb258 | 105 | * |
wim | 21:9eb628d9e164 | 106 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 107 | * @param ctrl LCD controller (default = HD44780) |
wim | 15:b70ebfffb258 | 108 | */ |
wim | 21:9eb628d9e164 | 109 | TextLCD_Base::TextLCD_Base(LCDType type, LCDCtrl ctrl) : _type(type), _ctrl(ctrl) { |
wim | 30:033048611c01 | 110 | |
wim | 30:033048611c01 | 111 | // Extract LCDType data |
wim | 30:033048611c01 | 112 | |
wim | 30:033048611c01 | 113 | // Columns encoded in b7..b0 |
wim | 30:033048611c01 | 114 | _nr_cols = (_type & 0xFF); |
wim | 30:033048611c01 | 115 | |
wim | 30:033048611c01 | 116 | // Rows encoded in b15..b8 |
wim | 30:033048611c01 | 117 | _nr_rows = ((_type >> 8) & 0xFF); |
wim | 30:033048611c01 | 118 | |
wim | 30:033048611c01 | 119 | // Addressing mode encoded in b19..b16 |
wim | 30:033048611c01 | 120 | _addr_mode = _type & LCD_T_ADR_MSK; |
wim | 14:0c32b66b14b8 | 121 | } |
wim | 14:0c32b66b14b8 | 122 | |
wim | 14:0c32b66b14b8 | 123 | |
wim | 21:9eb628d9e164 | 124 | /** Init the LCD Controller(s) |
wim | 21:9eb628d9e164 | 125 | * Clear display |
wim | 21:9eb628d9e164 | 126 | */ |
wim | 21:9eb628d9e164 | 127 | void TextLCD_Base::_init() { |
wim | 15:b70ebfffb258 | 128 | |
wim | 15:b70ebfffb258 | 129 | // Select and configure second LCD controller when needed |
wim | 15:b70ebfffb258 | 130 | if(_type==LCD40x4) { |
wim | 30:033048611c01 | 131 | _ctrl_idx=_LCDCtrl_1; // Select 2nd controller |
wim | 30:033048611c01 | 132 | _initCtrl(); // Init 2nd controller |
wim | 15:b70ebfffb258 | 133 | } |
wim | 15:b70ebfffb258 | 134 | |
wim | 15:b70ebfffb258 | 135 | // Select and configure primary LCD controller |
wim | 27:22d5086f6ba6 | 136 | _ctrl_idx=_LCDCtrl_0; // Select primary controller |
wim | 19:c747b9e2e7b8 | 137 | _initCtrl(); // Init primary controller |
wim | 28:30fa94f7341c | 138 | |
wim | 32:59c4b8f648d4 | 139 | // Clear whole display and Reset Cursor location |
wim | 32:59c4b8f648d4 | 140 | // Note: This will make sure that some 3-line displays that skip topline of a 4-line configuration |
wim | 32:59c4b8f648d4 | 141 | // are cleared and init cursor correctly. |
wim | 32:59c4b8f648d4 | 142 | cls(); |
wim | 15:b70ebfffb258 | 143 | } |
wim | 15:b70ebfffb258 | 144 | |
wim | 21:9eb628d9e164 | 145 | /** Init the LCD controller |
wim | 21:9eb628d9e164 | 146 | * 4-bit mode, number of lines, fonttype, no cursor etc |
wim | 30:033048611c01 | 147 | * |
wim | 30:033048611c01 | 148 | * Note: some configurations are commented out because they have not yet been tested due to lack of hardware |
wim | 21:9eb628d9e164 | 149 | */ |
wim | 21:9eb628d9e164 | 150 | void TextLCD_Base::_initCtrl() { |
wim | 32:59c4b8f648d4 | 151 | int _bias_lines=0; // Set Bias and lines (Instr Set 1), temporary variable. |
wim | 32:59c4b8f648d4 | 152 | int _lines=0; // Set lines (Ext Instr Set), temporary variable. |
wim | 32:59c4b8f648d4 | 153 | // int _function_x=0; // Set ext. function (Ext Instr Set), temporary variable. |
wim | 32:59c4b8f648d4 | 154 | |
wim | 26:bd897a001012 | 155 | this->_setRS(false); // command mode |
wim | 13:24506ba22480 | 156 | |
wim | 26:bd897a001012 | 157 | wait_ms(20); // Wait 20ms to ensure powered up |
simon | 1:ac48b187213c | 158 | |
wim | 17:652ab113bc2e | 159 | // send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus) |
wim | 17:652ab113bc2e | 160 | for (int i=0; i<3; i++) { |
wim | 17:652ab113bc2e | 161 | _writeNibble(0x3); |
wim | 20:e0da005a777f | 162 | wait_ms(15); // This command takes 1.64ms, so wait for it |
wim | 17:652ab113bc2e | 163 | } |
wim | 17:652ab113bc2e | 164 | _writeNibble(0x2); // 4-bit mode |
wim | 17:652ab113bc2e | 165 | wait_us(40); // most instructions take 40us |
wim | 18:bd65dc10f27f | 166 | |
wim | 18:bd65dc10f27f | 167 | // Display is now in 4-bit mode |
wim | 27:22d5086f6ba6 | 168 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 25:6162b31128c9 | 169 | |
wim | 29:a3663151aa65 | 170 | // Device specific initialisations: DC/DC converter to generate VLCD or VLED, number of lines etc |
wim | 19:c747b9e2e7b8 | 171 | switch (_ctrl) { |
wim | 32:59c4b8f648d4 | 172 | |
wim | 29:a3663151aa65 | 173 | case KS0078: |
wim | 29:a3663151aa65 | 174 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 175 | switch (_type) { |
wim | 29:a3663151aa65 | 176 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 29:a3663151aa65 | 177 | case LCD8x2B: //8x2B is a special case of 16x1 |
wim | 29:a3663151aa65 | 178 | // case LCD12x1: |
wim | 29:a3663151aa65 | 179 | case LCD16x1: |
wim | 30:033048611c01 | 180 | // case LCD20x1: |
wim | 29:a3663151aa65 | 181 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 182 | _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs) |
wim | 32:59c4b8f648d4 | 183 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 184 | // N=0 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 185 | // RE=0 (Dis. Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 186 | // DH=1 (Disp shift enable, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 187 | // REV=0 (Reverse normal, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 188 | |
wim | 32:59c4b8f648d4 | 189 | _function_1 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs) |
wim | 32:59c4b8f648d4 | 190 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 191 | // N=0 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 192 | // RE=1 (Ena Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 193 | // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 194 | // 0 |
wim | 30:033048611c01 | 195 | |
wim | 32:59c4b8f648d4 | 196 | _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs) |
wim | 32:59c4b8f648d4 | 197 | // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078) |
wim | 29:a3663151aa65 | 198 | break; |
wim | 29:a3663151aa65 | 199 | |
wim | 32:59c4b8f648d4 | 200 | // case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 201 | // case LCD12x3D1: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 202 | // case LCD12x4D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 203 | // case LCD16x3D: // Special mode for KS0078 |
wim | 32:59c4b8f648d4 | 204 | // case LCD16x4D: // Special mode for KS0078 |
wim | 30:033048611c01 | 205 | // case LCD24x3D: // Special mode for KS0078 |
wim | 30:033048611c01 | 206 | // case LCD24x3D1: // Special mode for KS0078 |
wim | 30:033048611c01 | 207 | case LCD24x4D: // Special mode for KS0078 |
wim | 32:59c4b8f648d4 | 208 | _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs) |
wim | 32:59c4b8f648d4 | 209 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 210 | // N=0 (dont care for 4 line mode) |
wim | 32:59c4b8f648d4 | 211 | // RE=0 (Dis. Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 212 | // DH=1 (Disp shift enable, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 213 | // REV=0 (Reverse normal, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 214 | |
wim | 32:59c4b8f648d4 | 215 | _function_1 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs) |
wim | 32:59c4b8f648d4 | 216 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 217 | // N=0 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 218 | // RE=1 (Ena Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 219 | // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 220 | // 0 |
wim | 29:a3663151aa65 | 221 | |
wim | 32:59c4b8f648d4 | 222 | _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs) |
wim | 32:59c4b8f648d4 | 223 | // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078) |
wim | 30:033048611c01 | 224 | break; |
wim | 30:033048611c01 | 225 | |
wim | 29:a3663151aa65 | 226 | default: |
wim | 30:033048611c01 | 227 | // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4) |
wim | 32:59c4b8f648d4 | 228 | _function = 0x0A; // Function set 001 DL N RE(0) DH REV (Std Regs) |
wim | 32:59c4b8f648d4 | 229 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 230 | // N=1 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 231 | // RE=0 (Dis. Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 232 | // DH=1 (Disp shift enable, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 233 | // REV=0 (Reverse normal, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 234 | |
wim | 32:59c4b8f648d4 | 235 | _function_1 = 0x0C; // Function set 001 DL N RE(1) BE 0 (Ext Regs) |
wim | 32:59c4b8f648d4 | 236 | // DL=0 (4 bits bus) |
wim | 32:59c4b8f648d4 | 237 | // N=1 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 238 | // RE=1 (Ena Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 239 | // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 240 | // 0 |
wim | 30:033048611c01 | 241 | |
wim | 32:59c4b8f648d4 | 242 | _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs) |
wim | 32:59c4b8f648d4 | 243 | // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078) |
wim | 29:a3663151aa65 | 244 | break; |
wim | 29:a3663151aa65 | 245 | } // switch type |
wim | 29:a3663151aa65 | 246 | |
wim | 32:59c4b8f648d4 | 247 | // init special features |
wim | 32:59c4b8f648d4 | 248 | _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE 0 (Ext Regs) |
wim | 32:59c4b8f648d4 | 249 | // DL=0 (4 bits bus), DL=1 (8 bits mode) |
wim | 32:59c4b8f648d4 | 250 | // N=0 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 251 | // RE=1 (Ena Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 252 | // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 253 | // 0 |
wim | 32:59c4b8f648d4 | 254 | |
wim | 32:59c4b8f648d4 | 255 | _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs) |
wim | 32:59c4b8f648d4 | 256 | // FW=0 (5-dot font, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 257 | // BW=0 (Cur BW invert disable, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 258 | // NW=0 (1,2 Line), NW=1 (4 line, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 259 | |
wim | 32:59c4b8f648d4 | 260 | _writeCommand(0x10); // Scroll/Shift set 0001 DS/HS4 DS/HS3 DS/HS2 DS/HS1 (Ext Regs) |
wim | 32:59c4b8f648d4 | 261 | // Dotscroll/Display shift enable (Special mode for KS0078) |
wim | 32:59c4b8f648d4 | 262 | |
wim | 32:59c4b8f648d4 | 263 | _writeCommand(0x80); // Scroll Quantity set 1 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 (Ext Regs) |
wim | 32:59c4b8f648d4 | 264 | // Scroll quantity (Special mode for KS0078) |
wim | 32:59c4b8f648d4 | 265 | |
wim | 32:59c4b8f648d4 | 266 | _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs) |
wim | 32:59c4b8f648d4 | 267 | // DL=0 (4 bits bus), DL=1 (8 bits mode) |
wim | 32:59c4b8f648d4 | 268 | // N=0 (1 line mode), N=1 (2 line mode) |
wim | 32:59c4b8f648d4 | 269 | // RE=0 (Dis. Extended Regs, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 270 | // DH=1 (Disp shift enable/disable, special mode for KS0078) |
wim | 32:59c4b8f648d4 | 271 | // REV=0 (Reverse/Normal, special mode for KS0078) |
wim | 29:a3663151aa65 | 272 | break; // case KS0078 Controller |
wim | 29:a3663151aa65 | 273 | |
wim | 26:bd897a001012 | 274 | case ST7032_3V3: |
wim | 26:bd897a001012 | 275 | // ST7032 controller: Initialise Voltage booster for VLCD. VDD=3V3 |
wim | 26:bd897a001012 | 276 | case ST7032_5V: |
wim | 32:59c4b8f648d4 | 277 | // ST7032 controller: Disable Voltage booster for VLCD. VDD=5V |
wim | 29:a3663151aa65 | 278 | |
wim | 29:a3663151aa65 | 279 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 280 | switch (_type) { |
wim | 29:a3663151aa65 | 281 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 29:a3663151aa65 | 282 | case LCD8x2B: //8x2B is a special case of 16x1 |
wim | 29:a3663151aa65 | 283 | // case LCD12x1: |
wim | 29:a3663151aa65 | 284 | case LCD16x1: |
wim | 30:033048611c01 | 285 | // case LCD20x1: |
wim | 32:59c4b8f648d4 | 286 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 287 | _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 | 288 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 289 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 290 | break; |
wim | 28:30fa94f7341c | 291 | |
wim | 32:59c4b8f648d4 | 292 | case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 293 | case LCD12x3D1: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 294 | case LCD12x4D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 295 | case LCD24x4D: // Special mode for KS0078 |
wim | 32:59c4b8f648d4 | 296 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 30:033048611c01 | 297 | break; |
wim | 29:a3663151aa65 | 298 | |
wim | 32:59c4b8f648d4 | 299 | default: |
wim | 32:59c4b8f648d4 | 300 | // All other LCD types are initialised as 2 Line displays |
wim | 32:59c4b8f648d4 | 301 | _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 | 302 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 303 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 304 | break; |
wim | 32:59c4b8f648d4 | 305 | } // switch type |
wim | 32:59c4b8f648d4 | 306 | |
wim | 32:59c4b8f648d4 | 307 | // init special features |
wim | 32:59c4b8f648d4 | 308 | _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instruction Set = 1 |
wim | 32:59c4b8f648d4 | 309 | |
wim | 32:59c4b8f648d4 | 310 | _writeCommand(0x1C); // Internal OSC frequency adjustment Framefreq=183HZ, Bias will be 1/4 (IS=1) |
wim | 32:59c4b8f648d4 | 311 | |
wim | 32:59c4b8f648d4 | 312 | _contrast = LCD_ST7032_CONTRAST; |
wim | 32:59c4b8f648d4 | 313 | _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast Low bits, 0 1 1 1 C3 C2 C1 C0 (IS=1) |
wim | 32:59c4b8f648d4 | 314 | |
wim | 32:59c4b8f648d4 | 315 | |
wim | 32:59c4b8f648d4 | 316 | if (_ctrl == ST7032_3V3) { |
wim | 32:59c4b8f648d4 | 317 | _icon_power = 0x04; // Icon display off, Booster circuit is turned on (IS=1) |
wim | 32:59c4b8f648d4 | 318 | // Saved to allow contrast change at later time |
wim | 32:59c4b8f648d4 | 319 | } |
wim | 32:59c4b8f648d4 | 320 | else { |
wim | 32:59c4b8f648d4 | 321 | _icon_power = 0x00; // Icon display off, Booster circuit is turned off (IS=1) |
wim | 32:59c4b8f648d4 | 322 | // Saved to allow contrast change at later time |
wim | 32:59c4b8f648d4 | 323 | } |
wim | 32:59c4b8f648d4 | 324 | _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 | 325 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 326 | |
wim | 32:59c4b8f648d4 | 327 | _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 | 328 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 329 | |
wim | 32:59c4b8f648d4 | 330 | _writeCommand(0x20 | _function); // Select Instruction Set = 0 |
wim | 32:59c4b8f648d4 | 331 | |
wim | 32:59c4b8f648d4 | 332 | break; // case ST7032_3V3 Controller |
wim | 32:59c4b8f648d4 | 333 | // case ST7032_5V Controller |
wim | 32:59c4b8f648d4 | 334 | |
wim | 32:59c4b8f648d4 | 335 | case ST7036_3V3: |
wim | 32:59c4b8f648d4 | 336 | // ST7036 controller: Initialise Voltage booster for VLCD. VDD=3V3 |
wim | 32:59c4b8f648d4 | 337 | // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G) |
wim | 32:59c4b8f648d4 | 338 | case ST7036_5V: |
wim | 32:59c4b8f648d4 | 339 | // ST7036 controller: Disable Voltage booster for VLCD. VDD=5V |
wim | 32:59c4b8f648d4 | 340 | // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G) |
wim | 32:59c4b8f648d4 | 341 | |
wim | 32:59c4b8f648d4 | 342 | // Initialise Display configuration |
wim | 32:59c4b8f648d4 | 343 | switch (_type) { |
wim | 32:59c4b8f648d4 | 344 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 32:59c4b8f648d4 | 345 | case LCD8x2B: //8x2D is a special case of 16x1 |
wim | 32:59c4b8f648d4 | 346 | // case LCD12x1: |
wim | 32:59c4b8f648d4 | 347 | case LCD16x1: |
wim | 32:59c4b8f648d4 | 348 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 349 | _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 | 350 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 351 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 352 | |
wim | 32:59c4b8f648d4 | 353 | _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD |
wim | 32:59c4b8f648d4 | 354 | break; |
wim | 32:59c4b8f648d4 | 355 | |
wim | 32:59c4b8f648d4 | 356 | // case LCD12x3G: // Special mode for ST7036 |
wim | 32:59c4b8f648d4 | 357 | case LCD16x3G: // Special mode for ST7036 |
wim | 32:59c4b8f648d4 | 358 | _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 | 359 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 360 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 361 | |
wim | 32:59c4b8f648d4 | 362 | _bias_lines = 0x05; // Bias: 1/5, 3-Lines LCD |
wim | 32:59c4b8f648d4 | 363 | break; |
wim | 32:59c4b8f648d4 | 364 | |
wim | 32:59c4b8f648d4 | 365 | // case LCD12x3D1: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 366 | // case LCD16x3D1: // Special mode for SSD1803 |
wim | 30:033048611c01 | 367 | case LCD12x4D: // Special mode for PCF2116 |
wim | 30:033048611c01 | 368 | case LCD24x4D: // Special mode for KS0078 |
wim | 30:033048611c01 | 369 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 29:a3663151aa65 | 370 | break; |
wim | 28:30fa94f7341c | 371 | |
wim | 29:a3663151aa65 | 372 | default: |
wim | 32:59c4b8f648d4 | 373 | // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4) |
wim | 32:59c4b8f648d4 | 374 | _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 | 375 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 376 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 377 | |
wim | 32:59c4b8f648d4 | 378 | _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD |
wim | 32:59c4b8f648d4 | 379 | break; |
wim | 32:59c4b8f648d4 | 380 | } // switch type |
wim | 32:59c4b8f648d4 | 381 | |
wim | 29:a3663151aa65 | 382 | |
wim | 32:59c4b8f648d4 | 383 | // init special features |
wim | 32:59c4b8f648d4 | 384 | _writeCommand(0x20 | _function | 0x01); // Set function, IS2,IS1 = 01 (Select Instruction Set = 1) |
wim | 32:59c4b8f648d4 | 385 | _writeCommand(0x10 | _bias_lines); // Set Bias and 1,2 or 3 lines (Instr Set 1) |
wim | 29:a3663151aa65 | 386 | |
wim | 32:59c4b8f648d4 | 387 | _contrast = LCD_ST7036_CONTRAST; |
wim | 32:59c4b8f648d4 | 388 | _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast, 0 1 1 1 C3 C2 C1 C0 (Instr Set 1) |
wim | 32:59c4b8f648d4 | 389 | |
wim | 32:59c4b8f648d4 | 390 | if (_ctrl == ST7036_3V3) { |
wim | 32:59c4b8f648d4 | 391 | _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 | 392 | // Saved to allow contrast change at later time |
wim | 32:59c4b8f648d4 | 393 | } |
wim | 32:59c4b8f648d4 | 394 | else { |
wim | 32:59c4b8f648d4 | 395 | _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 | 396 | } |
wim | 29:a3663151aa65 | 397 | |
wim | 32:59c4b8f648d4 | 398 | _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Contrast C5, C4 (Instr Set 1) |
wim | 32:59c4b8f648d4 | 399 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 400 | |
wim | 32:59c4b8f648d4 | 401 | _writeCommand(0x68 | (LCD_ST7036_RAB & 0x07)); // Voltagefollower On = 1, Ampl ratio Rab2, Rab1, Rab0 = 1 0 1 (Instr Set 1) |
wim | 32:59c4b8f648d4 | 402 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 28:30fa94f7341c | 403 | |
wim | 32:59c4b8f648d4 | 404 | _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instruction Set = 0) |
wim | 32:59c4b8f648d4 | 405 | |
wim | 32:59c4b8f648d4 | 406 | break; // case ST7036_3V3 Controller |
wim | 32:59c4b8f648d4 | 407 | // case ST7036_5V Controller |
wim | 32:59c4b8f648d4 | 408 | |
wim | 32:59c4b8f648d4 | 409 | case SSD1803_3V3: |
wim | 32:59c4b8f648d4 | 410 | // SSD1803 controller: Initialise Voltage booster for VLCD. VDD=3V3 |
wim | 32:59c4b8f648d4 | 411 | // Note: supports 1,2, 3 or 4 lines |
wim | 32:59c4b8f648d4 | 412 | // case SSD1803_5V: |
wim | 32:59c4b8f648d4 | 413 | // SSD1803 controller: No Voltage booster for VLCD. VDD=5V |
wim | 32:59c4b8f648d4 | 414 | |
wim | 29:a3663151aa65 | 415 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 416 | switch (_type) { |
wim | 29:a3663151aa65 | 417 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 30:033048611c01 | 418 | case LCD8x2B: //8x2D is a special case of 16x1 |
wim | 29:a3663151aa65 | 419 | // case LCD12x1: |
wim | 29:a3663151aa65 | 420 | case LCD16x1: |
wim | 29:a3663151aa65 | 421 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 422 | _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS |
wim | 32:59c4b8f648d4 | 423 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 424 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 425 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 426 | // N=0 1 Line / 3 Line |
wim | 32:59c4b8f648d4 | 427 | // DH=0 Double Height disable |
wim | 32:59c4b8f648d4 | 428 | // IS=0 |
wim | 32:59c4b8f648d4 | 429 | |
wim | 32:59c4b8f648d4 | 430 | _function_1 = 0x00; // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 431 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 432 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 433 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 434 | // N=0 1 Line / 3 Line |
wim | 32:59c4b8f648d4 | 435 | // BE=0 Blink Enable off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 436 | // REV=0 Reverse off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 437 | |
wim | 32:59c4b8f648d4 | 438 | _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW |
wim | 32:59c4b8f648d4 | 439 | // NW=0 1-Line LCD (N=0) |
wim | 29:a3663151aa65 | 440 | break; |
wim | 32:59c4b8f648d4 | 441 | |
wim | 32:59c4b8f648d4 | 442 | case LCD12x3D: // Special mode for KS0078, ST7036 and PCF21XX |
wim | 32:59c4b8f648d4 | 443 | // case LCD12x3D1: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 444 | case LCD16x3D: // Special mode for KS0078 and ST7036 |
wim | 32:59c4b8f648d4 | 445 | // case LCD16x3D1: // Special mode for SSD1803 |
wim | 32:59c4b8f648d4 | 446 | // case LCD20x3D: // Special mode for SSD1803 |
wim | 32:59c4b8f648d4 | 447 | _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS |
wim | 32:59c4b8f648d4 | 448 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 449 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 450 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 451 | // N=0 1 Line / 3 Line |
wim | 32:59c4b8f648d4 | 452 | // DH=0 Double Height disable |
wim | 32:59c4b8f648d4 | 453 | // IS=0 |
wim | 32:59c4b8f648d4 | 454 | |
wim | 32:59c4b8f648d4 | 455 | _function_1 = 0x00; // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 456 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 457 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 458 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 459 | // N=0 1 Line / 3 Line |
wim | 32:59c4b8f648d4 | 460 | // BE=0 Blink Enable off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 461 | // REV=0 Reverse off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 462 | |
wim | 32:59c4b8f648d4 | 463 | _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW |
wim | 32:59c4b8f648d4 | 464 | // NW=1 3-Line LCD (N=0) |
wim | 29:a3663151aa65 | 465 | break; |
wim | 30:033048611c01 | 466 | |
wim | 32:59c4b8f648d4 | 467 | case LCD20x4D: // Special mode for SSD1803 |
wim | 32:59c4b8f648d4 | 468 | _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS |
wim | 32:59c4b8f648d4 | 469 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 470 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 471 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 472 | // N=1 4 Line |
wim | 32:59c4b8f648d4 | 473 | // DH=0 Double Height disable |
wim | 32:59c4b8f648d4 | 474 | // IS=0 |
wim | 32:59c4b8f648d4 | 475 | |
wim | 32:59c4b8f648d4 | 476 | _function_1 = 0x08; // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 477 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 478 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 479 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 480 | // N=1 4 Line |
wim | 32:59c4b8f648d4 | 481 | // BE=0 Blink Enable off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 482 | // REV=0 Reverse off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 483 | |
wim | 32:59c4b8f648d4 | 484 | _lines = 0x01; // Ext function set 0 0 0 0 1 FW BW NW |
wim | 32:59c4b8f648d4 | 485 | // NW=1 4-Line LCD (N=1) |
wim | 32:59c4b8f648d4 | 486 | break; |
wim | 32:59c4b8f648d4 | 487 | |
wim | 32:59c4b8f648d4 | 488 | case LCD24x4D: // Special mode for KS0078 |
wim | 30:033048611c01 | 489 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 30:033048611c01 | 490 | break; |
wim | 30:033048611c01 | 491 | |
wim | 29:a3663151aa65 | 492 | default: |
wim | 30:033048611c01 | 493 | // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4) |
wim | 32:59c4b8f648d4 | 494 | _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS |
wim | 32:59c4b8f648d4 | 495 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 496 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 497 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 498 | // N=1 2 line / 4 Line |
wim | 32:59c4b8f648d4 | 499 | // DH=0 Double Height disable |
wim | 32:59c4b8f648d4 | 500 | // IS=0 |
wim | 29:a3663151aa65 | 501 | |
wim | 32:59c4b8f648d4 | 502 | _function_1 = 0x08; // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 503 | // Saved to allow switch between Instruction sets at later time |
wim | 32:59c4b8f648d4 | 504 | // DL=0 4-bit Databus, |
wim | 32:59c4b8f648d4 | 505 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 32:59c4b8f648d4 | 506 | // N=1 2 line / 4 Line |
wim | 32:59c4b8f648d4 | 507 | // BE=0 Blink Enable off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 508 | // REV=0 Reverse off, special feature of SSD1803 |
wim | 32:59c4b8f648d4 | 509 | |
wim | 32:59c4b8f648d4 | 510 | _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW |
wim | 32:59c4b8f648d4 | 511 | // NW=0 2-Line LCD (N=1) |
wim | 32:59c4b8f648d4 | 512 | break; |
wim | 32:59c4b8f648d4 | 513 | } // switch type |
wim | 32:59c4b8f648d4 | 514 | |
wim | 32:59c4b8f648d4 | 515 | |
wim | 32:59c4b8f648d4 | 516 | // init special features |
wim | 32:59c4b8f648d4 | 517 | _writeCommand(0x20 | _function_1 | 0x02); // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 518 | // Select Extended Instruction Set |
wim | 32:59c4b8f648d4 | 519 | |
wim | 32:59c4b8f648d4 | 520 | _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 | 521 | |
wim | 32:59c4b8f648d4 | 522 | _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 | 523 | |
wim | 32:59c4b8f648d4 | 524 | _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-31, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set) |
wim | 32:59c4b8f648d4 | 525 | // _writeCommand(0x04); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM31-1, BDS=0 SEG100-1 "Top View" (Ext Instr Set) |
wim | 32:59c4b8f648d4 | 526 | |
wim | 32:59c4b8f648d4 | 527 | // _writeCommand(0x76); // Set TC Control, 0 1 1 1 0 1 1 0 (Ext Instr Set) |
wim | 32:59c4b8f648d4 | 528 | // _writeData(0x02); // Set TC data, 0 0 0 0 0 TC2,TC1,TC0 = 0 1 0 (Ext Instr Set) |
wim | 32:59c4b8f648d4 | 529 | |
wim | 32:59c4b8f648d4 | 530 | _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS=1 Select Instruction Set 1 |
wim | 32:59c4b8f648d4 | 531 | // Select Std Instr set, Select IS=1 |
wim | 32:59c4b8f648d4 | 532 | |
wim | 32:59c4b8f648d4 | 533 | _contrast = LCD_SSD1_CONTRAST; |
wim | 32:59c4b8f648d4 | 534 | _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast 0 1 1 1 C3, C2, C1, C0 (Instr Set 1) |
wim | 32:59c4b8f648d4 | 535 | |
wim | 32:59c4b8f648d4 | 536 | _icon_power = 0x04; // Icon off, Booster on (Instr Set 1) |
wim | 32:59c4b8f648d4 | 537 | // Saved to allow contrast change at later time |
wim | 32:59c4b8f648d4 | 538 | _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 | 539 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 540 | |
wim | 32:59c4b8f648d4 | 541 | _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 | 542 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 543 | |
wim | 32:59c4b8f648d4 | 544 | _writeCommand(0x20 | _function_1 | 0x02); // Set function, 0 0 1 DL N BE RE(1) REV |
wim | 32:59c4b8f648d4 | 545 | // Select Extended Instruction Set 1 |
wim | 32:59c4b8f648d4 | 546 | _writeCommand(0x10); // Shift/Scroll enable, 0 0 0 1 DS4/HS4 DS3/HS3 DS2/HS2 DS1/HS1 (Ext Instr Set 1) |
wim | 32:59c4b8f648d4 | 547 | |
wim | 32:59c4b8f648d4 | 548 | |
wim | 32:59c4b8f648d4 | 549 | _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0 |
wim | 32:59c4b8f648d4 | 550 | // Select Std Instr set, Select IS=0 |
wim | 32:59c4b8f648d4 | 551 | |
wim | 32:59c4b8f648d4 | 552 | break; // case SSD1803 Controller |
wim | 32:59c4b8f648d4 | 553 | |
wim | 29:a3663151aa65 | 554 | |
wim | 32:59c4b8f648d4 | 555 | // Note1: The PCF21XX family of controllers has several types that dont have an onboard voltage generator for V-LCD. |
wim | 32:59c4b8f648d4 | 556 | // You must supply this LCD voltage externally and not try to enable VGen. |
wim | 32:59c4b8f648d4 | 557 | // 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 | 558 | // 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 | 559 | // More recent versions of the controller (eg PCF2116K) have an improved VGen that will work with 3V3. |
wim | 32:59c4b8f648d4 | 560 | // 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 | 561 | // contrast control similar to that of pin 3 on the standard 14pin LCD module connector. |
wim | 32:59c4b8f648d4 | 562 | // You can disable VGen by connecting Vo to VDD. VLCD will then be used directly as LCD voltage. |
wim | 32:59c4b8f648d4 | 563 | // 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 | 564 | // 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 | 565 | // 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 | 566 | // 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 | 567 | |
wim | 30:033048611c01 | 568 | case PCF2113_3V3: |
wim | 32:59c4b8f648d4 | 569 | // PCF2113 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast. |
wim | 29:a3663151aa65 | 570 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 571 | switch (_type) { |
wim | 29:a3663151aa65 | 572 | // case LCD12x1: |
wim | 32:59c4b8f648d4 | 573 | // _function = 0x02; // FUNCTION SET DL=0 4 bit, 0, M=0 1-line/12 chars display mode, SL=1 |
wim | 32:59c4b8f648d4 | 574 | // Note: 4 bit mode is ignored for I2C mode |
wim | 29:a3663151aa65 | 575 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 576 | _function = 0x00; // FUNCTION SET DL=0 4 bit, 0, M=0 1-line/24 chars display mode, SL=0 |
wim | 32:59c4b8f648d4 | 577 | // Note: 4 bit mode is ignored for I2C mode |
wim | 30:033048611c01 | 578 | break; |
wim | 30:033048611c01 | 579 | |
wim | 30:033048611c01 | 580 | //Tested OK for PCF2113 |
wim | 30:033048611c01 | 581 | case LCD12x2: |
wim | 32:59c4b8f648d4 | 582 | _function = 0x04; // FUNCTION SET DL=0 4 bit, 0, M=1 2-line/12 chars display mode, SL=0 |
wim | 30:033048611c01 | 583 | break; |
wim | 30:033048611c01 | 584 | |
wim | 30:033048611c01 | 585 | default: |
wim | 30:033048611c01 | 586 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 30:033048611c01 | 587 | break; |
wim | 30:033048611c01 | 588 | |
wim | 30:033048611c01 | 589 | } // switch type |
wim | 30:033048611c01 | 590 | |
wim | 32:59c4b8f648d4 | 591 | // Init special features |
wim | 32:59c4b8f648d4 | 592 | _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1 |
wim | 32:59c4b8f648d4 | 593 | |
wim | 32:59c4b8f648d4 | 594 | _writeCommand(0x04); // DISP CONF SET (Instr. Set 1) 0000 0, 1, P=0, Q=0 |
wim | 32:59c4b8f648d4 | 595 | _writeCommand(0x10); // TEMP CTRL SET (Instr. Set 1) 0001 0, 0, TC1=0, TC2=0 |
wim | 32:59c4b8f648d4 | 596 | // _writeCommand(0x42); // HV GEN (Instr. Set 1) 0100 S1=1, S2=0 (2x multiplier) |
wim | 32:59c4b8f648d4 | 597 | _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV GEN (Instr. Set 1) 0100 S1=1, S2=0 (2x multiplier) |
wim | 32:59c4b8f648d4 | 598 | |
wim | 32:59c4b8f648d4 | 599 | _contrast = LCD_PCF2_CONTRAST; |
wim | 32:59c4b8f648d4 | 600 | _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast |
wim | 32:59c4b8f648d4 | 601 | _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast |
wim | 32:59c4b8f648d4 | 602 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 603 | |
wim | 32:59c4b8f648d4 | 604 | _writeCommand(0x02); // SCRN CONF (Instr. Set 1) L=0 |
wim | 32:59c4b8f648d4 | 605 | _writeCommand(0x08); // ICON CONF (Instr. Set 1) IM=0 (Char mode) IB=0 (no icon blink) DM=0 (no direct mode) |
wim | 32:59c4b8f648d4 | 606 | |
wim | 32:59c4b8f648d4 | 607 | _writeCommand(0x20 | _function); // Select Instruction Set = 0 |
wim | 32:59c4b8f648d4 | 608 | |
wim | 30:033048611c01 | 609 | break; // case PCF2113_3V3 Controller |
wim | 30:033048611c01 | 610 | |
wim | 30:033048611c01 | 611 | |
wim | 32:59c4b8f648d4 | 612 | // case PCF2113_5V: |
wim | 32:59c4b8f648d4 | 613 | // PCF2113 controller: No Voltage generator for VLCD. VDD=5V. Contrast voltage controlled by VA or VB. |
wim | 32:59c4b8f648d4 | 614 | //@TODO |
wim | 32:59c4b8f648d4 | 615 | |
wim | 30:033048611c01 | 616 | |
wim | 30:033048611c01 | 617 | case PCF2116_3V3: |
wim | 32:59c4b8f648d4 | 618 | // PCF2116 controller: Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage. |
wim | 30:033048611c01 | 619 | // Initialise Display configuration |
wim | 30:033048611c01 | 620 | switch (_type) { |
wim | 30:033048611c01 | 621 | // case LCD12x1: |
wim | 30:033048611c01 | 622 | // case LCD12x2: |
wim | 30:033048611c01 | 623 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 624 | _writeCommand(0x22); //FUNCTION SET 4 bit, N/M=0 1-line/24 chars display mode, G=1 Vgen on |
wim | 29:a3663151aa65 | 625 | //Note: 4 bit mode is ignored for I2C mode |
wim | 29:a3663151aa65 | 626 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 29:a3663151aa65 | 627 | break; |
wim | 29:a3663151aa65 | 628 | |
wim | 32:59c4b8f648d4 | 629 | case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 630 | case LCD12x3D1: // Special mode for PCF21XX |
wim | 32:59c4b8f648d4 | 631 | case LCD12x4D: // Special mode for PCF21XX: |
wim | 30:033048611c01 | 632 | _writeCommand(0x2E); //FUNCTION SET 4 bit, N=1/M=1 4-line/12 chars display mode, G=1 VGen on |
wim | 29:a3663151aa65 | 633 | //Note: 4 bit mode is ignored for I2C mode |
wim | 29:a3663151aa65 | 634 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 29:a3663151aa65 | 635 | break; |
wim | 30:033048611c01 | 636 | |
wim | 30:033048611c01 | 637 | case LCD24x2: |
wim | 30:033048611c01 | 638 | _writeCommand(0x2A); //FUNCTION SET 4 bit, N=1/M=0 2-line/24 chars display mode, G=1 VGen on |
wim | 29:a3663151aa65 | 639 | //Note: 4 bit mode is ignored for I2C mode |
wim | 30:033048611c01 | 640 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 641 | break; |
wim | 32:59c4b8f648d4 | 642 | |
wim | 30:033048611c01 | 643 | default: |
wim | 30:033048611c01 | 644 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 30:033048611c01 | 645 | break; |
wim | 30:033048611c01 | 646 | |
wim | 29:a3663151aa65 | 647 | } // switch type |
wim | 29:a3663151aa65 | 648 | |
wim | 30:033048611c01 | 649 | break; // case PCF2116_3V3 Controller |
wim | 29:a3663151aa65 | 650 | |
wim | 32:59c4b8f648d4 | 651 | |
wim | 32:59c4b8f648d4 | 652 | //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 | 653 | //@TODO |
wim | 32:59c4b8f648d4 | 654 | case PCF2116_5V: |
wim | 32:59c4b8f648d4 | 655 | // PCF2116 controller: No Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage. |
wim | 32:59c4b8f648d4 | 656 | // Initialise Display configuration |
wim | 32:59c4b8f648d4 | 657 | switch (_type) { |
wim | 32:59c4b8f648d4 | 658 | // case LCD12x1: |
wim | 32:59c4b8f648d4 | 659 | // case LCD12x2: |
wim | 32:59c4b8f648d4 | 660 | // case LCD24x1: |
wim | 32:59c4b8f648d4 | 661 | // _writeCommand(0x20); //FUNCTION SET 4 bit, N/M=0 1-line/24 chars display mode |
wim | 32:59c4b8f648d4 | 662 | //Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 663 | // wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 664 | // break; |
wim | 32:59c4b8f648d4 | 665 | |
wim | 32:59c4b8f648d4 | 666 | case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 667 | case LCD12x3D1: // Special mode for PCF21XX |
wim | 32:59c4b8f648d4 | 668 | case LCD12x4D: // Special mode for PCF21XX: |
wim | 32:59c4b8f648d4 | 669 | // _writeCommand(0x34); //FUNCTION SET 8 bit, N=0/M=1 4-line/12 chars display mode OK |
wim | 32:59c4b8f648d4 | 670 | // _writeCommand(0x24); //FUNCTION SET 4 bit, N=0/M=1 4-line/12 chars display mode OK |
wim | 32:59c4b8f648d4 | 671 | _writeCommand(0x2C); //FUNCTION SET 4 bit, N=1/M=1 4-line/12 chars display mode OK |
wim | 32:59c4b8f648d4 | 672 | //Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 673 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 674 | break; |
wim | 32:59c4b8f648d4 | 675 | |
wim | 32:59c4b8f648d4 | 676 | // case LCD24x2: |
wim | 32:59c4b8f648d4 | 677 | // _writeCommand(0x28); //FUNCTION SET 4 bit, N=1/M=0 2-line/24 chars display mode |
wim | 32:59c4b8f648d4 | 678 | //Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 679 | // wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 680 | // break; |
wim | 32:59c4b8f648d4 | 681 | |
wim | 32:59c4b8f648d4 | 682 | default: |
wim | 32:59c4b8f648d4 | 683 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 32:59c4b8f648d4 | 684 | break; |
wim | 32:59c4b8f648d4 | 685 | |
wim | 32:59c4b8f648d4 | 686 | } // switch type |
wim | 32:59c4b8f648d4 | 687 | |
wim | 32:59c4b8f648d4 | 688 | break; // case PCF2116_5V Controller |
wim | 32:59c4b8f648d4 | 689 | |
wim | 32:59c4b8f648d4 | 690 | case PCF2119_3V3: |
wim | 32:59c4b8f648d4 | 691 | // PCF2119 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast. |
wim | 32:59c4b8f648d4 | 692 | // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters. |
wim | 32:59c4b8f648d4 | 693 | // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00. |
wim | 32:59c4b8f648d4 | 694 | |
wim | 32:59c4b8f648d4 | 695 | //POR or Hardware Reset should be applied |
wim | 32:59c4b8f648d4 | 696 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 697 | |
wim | 32:59c4b8f648d4 | 698 | // Initialise Display configuration |
wim | 32:59c4b8f648d4 | 699 | switch (_type) { |
wim | 32:59c4b8f648d4 | 700 | case LCD8x1: |
wim | 32:59c4b8f648d4 | 701 | // case LCD12x1: |
wim | 32:59c4b8f648d4 | 702 | case LCD16x1: |
wim | 32:59c4b8f648d4 | 703 | _function = 0x02; // FUNCTION SET DL=0 4 bit, 0 , M=0 1-line/16 chars display mode, SL=1 |
wim | 32:59c4b8f648d4 | 704 | // Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 705 | break; |
wim | 32:59c4b8f648d4 | 706 | |
wim | 32:59c4b8f648d4 | 707 | case LCD24x1: |
wim | 32:59c4b8f648d4 | 708 | // case LCD32x1: |
wim | 32:59c4b8f648d4 | 709 | _function = 0x00; // FUNCTION SET DL=0 4 bit, 0 , M=0 1-line/32 chars display mode, SL=0 |
wim | 32:59c4b8f648d4 | 710 | // Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 711 | break; |
wim | 32:59c4b8f648d4 | 712 | |
wim | 32:59c4b8f648d4 | 713 | case LCD8x2: |
wim | 32:59c4b8f648d4 | 714 | // case LCD12x2: |
wim | 32:59c4b8f648d4 | 715 | case LCD16x2: |
wim | 32:59c4b8f648d4 | 716 | _function = 0x04; // FUNCTION SET DL=0 4 bit, 0, M=1 2-line/16 chars display mode, SL=0 |
wim | 32:59c4b8f648d4 | 717 | // Note: 4 bit mode is ignored for I2C mode |
wim | 32:59c4b8f648d4 | 718 | break; |
wim | 32:59c4b8f648d4 | 719 | |
wim | 32:59c4b8f648d4 | 720 | default: |
wim | 32:59c4b8f648d4 | 721 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 32:59c4b8f648d4 | 722 | break; |
wim | 32:59c4b8f648d4 | 723 | |
wim | 32:59c4b8f648d4 | 724 | } // switch type |
wim | 32:59c4b8f648d4 | 725 | |
wim | 32:59c4b8f648d4 | 726 | // Init special features |
wim | 32:59c4b8f648d4 | 727 | _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1 |
wim | 32:59c4b8f648d4 | 728 | |
wim | 32:59c4b8f648d4 | 729 | _writeCommand(0x04); // DISP CONF SET (Instr. Set 1) 0000, 0, 1, P=0, Q=0 |
wim | 32:59c4b8f648d4 | 730 | _writeCommand(0x10); // TEMP CTRL SET (Instr. Set 1) 0001, 0, 0, TC1=0, TC2=0 |
wim | 32:59c4b8f648d4 | 731 | // _writeCommand(0x42); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier) |
wim | 32:59c4b8f648d4 | 732 | _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier) |
wim | 32:59c4b8f648d4 | 733 | |
wim | 32:59c4b8f648d4 | 734 | _contrast = LCD_PCF2_CONTRAST; |
wim | 32:59c4b8f648d4 | 735 | _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast |
wim | 32:59c4b8f648d4 | 736 | _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast |
wim | 32:59c4b8f648d4 | 737 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 32:59c4b8f648d4 | 738 | |
wim | 32:59c4b8f648d4 | 739 | _writeCommand(0x02); // SCRN CONF (Instr. Set 1) L=0 |
wim | 32:59c4b8f648d4 | 740 | _writeCommand(0x08); // ICON CONF (Instr. Set 1) IM=0 (Char mode) IB=0 (no icon blink) DM=0 (no direct mode) |
wim | 32:59c4b8f648d4 | 741 | |
wim | 32:59c4b8f648d4 | 742 | _writeCommand(0x20 | _function); // Select Instruction Set = 0 |
wim | 32:59c4b8f648d4 | 743 | |
wim | 32:59c4b8f648d4 | 744 | break; // case PCF2119_3V3 Controller |
wim | 32:59c4b8f648d4 | 745 | |
wim | 32:59c4b8f648d4 | 746 | // case PCF2119_5V: |
wim | 32:59c4b8f648d4 | 747 | // PCF2119 controller: No Voltage booster for VLCD. VDD=3V3. VA and VB control contrast. |
wim | 32:59c4b8f648d4 | 748 | // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters. |
wim | 32:59c4b8f648d4 | 749 | // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00. |
wim | 30:033048611c01 | 750 | //@TODO |
wim | 29:a3663151aa65 | 751 | |
wim | 19:c747b9e2e7b8 | 752 | case WS0010: |
wim | 19:c747b9e2e7b8 | 753 | // WS0010 OLED controller: Initialise DC/DC Voltage converter for LEDs |
wim | 30:033048611c01 | 754 | // Note1: Identical to RS0010 |
wim | 30:033048611c01 | 755 | // Note2: supports 1 or 2 lines (and 16x100 graphics) |
wim | 30:033048611c01 | 756 | // supports 4 fonts (English/Japanese (default), Western European-I, English/Russian, Western European-II) |
wim | 19:c747b9e2e7b8 | 757 | // Cursor/Disp shift set 0001 SC RL 0 0 |
wim | 19:c747b9e2e7b8 | 758 | // |
wim | 30:033048611c01 | 759 | // Mode and Power set 0001 GC PWR 1 1 |
wim | 19:c747b9e2e7b8 | 760 | // GC = 0 (Graph Mode=1, Char Mode=0) |
wim | 30:033048611c01 | 761 | // PWR = 1 (DC/DC On/Off) |
wim | 30:033048611c01 | 762 | |
wim | 30:033048611c01 | 763 | //@Todo: This may be needed to enable a warm reboot |
wim | 32:59c4b8f648d4 | 764 | //_writeCommand(0x13); // Char mode, DC/DC off |
wim | 30:033048611c01 | 765 | //wait_ms(10); // Wait 10ms to ensure powered down |
wim | 32:59c4b8f648d4 | 766 | _writeCommand(0x17); // Char mode, DC/DC on |
wim | 30:033048611c01 | 767 | wait_ms(10); // Wait 10ms to ensure powered up |
wim | 29:a3663151aa65 | 768 | |
wim | 29:a3663151aa65 | 769 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 770 | switch (_type) { |
wim | 29:a3663151aa65 | 771 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 29:a3663151aa65 | 772 | case LCD8x2B: //8x2B is a special case of 16x1 |
wim | 29:a3663151aa65 | 773 | // case LCD12x1: |
wim | 29:a3663151aa65 | 774 | case LCD16x1: |
wim | 30:033048611c01 | 775 | case LCD24x1: |
wim | 30:033048611c01 | 776 | _writeCommand(0x20); // Function set 001 DL N F FT1 FT0 |
wim | 30:033048611c01 | 777 | // DL=0 (4 bits bus) |
wim | 30:033048611c01 | 778 | // N=0 (1 line) |
wim | 30:033048611c01 | 779 | // F=0 (5x7 dots font) |
wim | 30:033048611c01 | 780 | // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2 |
wim | 30:033048611c01 | 781 | break; |
wim | 30:033048611c01 | 782 | |
wim | 32:59c4b8f648d4 | 783 | case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 784 | case LCD12x3D1: // Special mode for PCF21XX |
wim | 32:59c4b8f648d4 | 785 | case LCD12x4D: // Special mode for PCF21XX: |
wim | 30:033048611c01 | 786 | case LCD24x4D: // Special mode for KS0078 |
wim | 30:033048611c01 | 787 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 29:a3663151aa65 | 788 | break; |
wim | 29:a3663151aa65 | 789 | |
wim | 29:a3663151aa65 | 790 | default: |
wim | 30:033048611c01 | 791 | // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4) |
wim | 30:033048611c01 | 792 | _writeCommand(0x28); // Function set 001 DL N F FT1 FT0 |
wim | 30:033048611c01 | 793 | // DL=0 (4 bits bus) |
wim | 30:033048611c01 | 794 | // N=1 (2 lines) |
wim | 30:033048611c01 | 795 | // F=0 (5x7 dots font) |
wim | 30:033048611c01 | 796 | // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2 |
wim | 30:033048611c01 | 797 | |
wim | 29:a3663151aa65 | 798 | break; |
wim | 29:a3663151aa65 | 799 | } // switch type |
wim | 29:a3663151aa65 | 800 | |
wim | 32:59c4b8f648d4 | 801 | break; // case WS0010 Controller |
wim | 29:a3663151aa65 | 802 | |
wim | 19:c747b9e2e7b8 | 803 | default: |
wim | 32:59c4b8f648d4 | 804 | // Devices fully compatible to HD44780 that do not use any DC/DC Voltage converters but external VLCD, no icons etc |
wim | 10:dd9b3a696acd | 805 | |
wim | 29:a3663151aa65 | 806 | // Initialise Display configuration |
wim | 29:a3663151aa65 | 807 | switch (_type) { |
wim | 29:a3663151aa65 | 808 | case LCD8x1: //8x1 is a regular 1 line display |
wim | 29:a3663151aa65 | 809 | case LCD8x2B: //8x2B is a special case of 16x1 |
wim | 29:a3663151aa65 | 810 | // case LCD12x1: |
wim | 29:a3663151aa65 | 811 | case LCD16x1: |
wim | 30:033048611c01 | 812 | // case LCD20x1: |
wim | 29:a3663151aa65 | 813 | case LCD24x1: |
wim | 30:033048611c01 | 814 | // case LCD40x1: |
wim | 32:59c4b8f648d4 | 815 | _function = 0x00; // Function set 001 DL N F - - |
wim | 29:a3663151aa65 | 816 | // DL=0 (4 bits bus) |
wim | 29:a3663151aa65 | 817 | // N=0 (1 line) |
wim | 29:a3663151aa65 | 818 | // F=0 (5x7 dots font) |
wim | 32:59c4b8f648d4 | 819 | _writeCommand(0x20 | _function); |
wim | 29:a3663151aa65 | 820 | break; |
wim | 29:a3663151aa65 | 821 | |
wim | 32:59c4b8f648d4 | 822 | case LCD12x3D: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 823 | case LCD12x3D1: // Special mode for KS0078 and PCF21XX |
wim | 32:59c4b8f648d4 | 824 | case LCD12x4D: // Special mode for KS0078 and PCF21XX: |
wim | 32:59c4b8f648d4 | 825 | case LCD16x3D: // Special mode for KS0078 and ST7036 |
wim | 32:59c4b8f648d4 | 826 | // case LCD16x3D1: // Special mode for KS0078 |
wim | 30:033048611c01 | 827 | // case LCD24x3D: // Special mode for KS0078 |
wim | 32:59c4b8f648d4 | 828 | // case LCD24x3D1: // Special mode for KS0078 |
wim | 30:033048611c01 | 829 | case LCD24x4D: // Special mode for KS0078 |
wim | 30:033048611c01 | 830 | error("Error: LCD Controller type does not support this Display type\n\r"); |
wim | 30:033048611c01 | 831 | break; |
wim | 30:033048611c01 | 832 | |
wim | 30:033048611c01 | 833 | // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4) |
wim | 29:a3663151aa65 | 834 | default: |
wim | 32:59c4b8f648d4 | 835 | _function = 0x08; // Function set 001 DL N F - - |
wim | 29:a3663151aa65 | 836 | // DL=0 (4 bits bus) |
wim | 29:a3663151aa65 | 837 | // Note: 4 bit mode is ignored for native SPI and I2C devices |
wim | 29:a3663151aa65 | 838 | // N=1 (2 lines) |
wim | 29:a3663151aa65 | 839 | // F=0 (5x7 dots font, only option for 2 line display) |
wim | 32:59c4b8f648d4 | 840 | // - (Don't care) |
wim | 32:59c4b8f648d4 | 841 | _writeCommand(0x20 | _function); |
wim | 29:a3663151aa65 | 842 | break; |
wim | 29:a3663151aa65 | 843 | } // switch type |
wim | 10:dd9b3a696acd | 844 | |
wim | 29:a3663151aa65 | 845 | break; // case default Controller |
wim | 29:a3663151aa65 | 846 | |
wim | 29:a3663151aa65 | 847 | } // switch Controller specific initialisations |
wim | 29:a3663151aa65 | 848 | |
wim | 10:dd9b3a696acd | 849 | |
wim | 30:033048611c01 | 850 | // Controller general initialisations |
wim | 32:59c4b8f648d4 | 851 | // _writeCommand(0x01); // cls, and set cursor to 0 |
wim | 32:59c4b8f648d4 | 852 | // wait_ms(10); // The CLS command takes 1.64 ms. |
wim | 32:59c4b8f648d4 | 853 | // // Since we are not using the Busy flag, Lets be safe and take 10 ms |
wim | 28:30fa94f7341c | 854 | |
wim | 28:30fa94f7341c | 855 | _writeCommand(0x02); // Return Home |
wim | 28:30fa94f7341c | 856 | // Cursor Home, DDRAM Address to Origin |
wim | 28:30fa94f7341c | 857 | |
wim | 28:30fa94f7341c | 858 | _writeCommand(0x06); // Entry Mode 0000 0 1 I/D S |
wim | 13:24506ba22480 | 859 | // Cursor Direction and Display Shift |
wim | 28:30fa94f7341c | 860 | // I/D=1 (Cur incr) |
wim | 28:30fa94f7341c | 861 | // S=0 (No display shift) |
wim | 10:dd9b3a696acd | 862 | |
wim | 29:a3663151aa65 | 863 | _writeCommand(0x14); // Cursor or Display shift 0001 S/C R/L x x |
wim | 29:a3663151aa65 | 864 | // S/C=0 Cursor moves |
wim | 29:a3663151aa65 | 865 | // R/L=1 Right |
wim | 29:a3663151aa65 | 866 | // |
wim | 29:a3663151aa65 | 867 | |
wim | 13:24506ba22480 | 868 | // _writeCommand(0x0C); // Display Ctrl 0000 1 D C B |
wim | 17:652ab113bc2e | 869 | // // Display On, Cursor Off, Blink Off |
wim | 21:9eb628d9e164 | 870 | setCursor(CurOff_BlkOff); |
wim | 21:9eb628d9e164 | 871 | setMode(DispOn); |
simon | 1:ac48b187213c | 872 | } |
simon | 1:ac48b187213c | 873 | |
wim | 8:03116f75b66e | 874 | |
wim | 21:9eb628d9e164 | 875 | /** Clear the screen, Cursor home. |
wim | 21:9eb628d9e164 | 876 | */ |
wim | 21:9eb628d9e164 | 877 | void TextLCD_Base::cls() { |
wim | 15:b70ebfffb258 | 878 | |
wim | 15:b70ebfffb258 | 879 | // Select and configure second LCD controller when needed |
wim | 15:b70ebfffb258 | 880 | if(_type==LCD40x4) { |
wim | 21:9eb628d9e164 | 881 | _ctrl_idx=_LCDCtrl_1; // Select 2nd controller |
wim | 15:b70ebfffb258 | 882 | |
wim | 15:b70ebfffb258 | 883 | // Second LCD controller Cursor always Off |
wim | 21:9eb628d9e164 | 884 | _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff); |
wim | 15:b70ebfffb258 | 885 | |
wim | 15:b70ebfffb258 | 886 | // Second LCD controller Clearscreen |
wim | 27:22d5086f6ba6 | 887 | _writeCommand(0x01); // cls, and set cursor to 0 |
wim | 29:a3663151aa65 | 888 | wait_ms(10); // The CLS command takes 1.64 ms. |
wim | 29:a3663151aa65 | 889 | // Since we are not using the Busy flag, Lets be safe and take 10 ms |
wim | 15:b70ebfffb258 | 890 | |
wim | 21:9eb628d9e164 | 891 | _ctrl_idx=_LCDCtrl_0; // Select primary controller |
wim | 15:b70ebfffb258 | 892 | } |
wim | 15:b70ebfffb258 | 893 | |
wim | 15:b70ebfffb258 | 894 | // Primary LCD controller Clearscreen |
wim | 27:22d5086f6ba6 | 895 | _writeCommand(0x01); // cls, and set cursor to 0 |
wim | 29:a3663151aa65 | 896 | wait_ms(10); // The CLS command takes 1.64 ms. |
wim | 29:a3663151aa65 | 897 | // Since we are not using the Busy flag, Lets be safe and take 10 ms |
wim | 15:b70ebfffb258 | 898 | |
wim | 15:b70ebfffb258 | 899 | // Restore cursormode on primary LCD controller when needed |
wim | 15:b70ebfffb258 | 900 | if(_type==LCD40x4) { |
wim | 17:652ab113bc2e | 901 | _setCursorAndDisplayMode(_currentMode,_currentCursor); |
wim | 15:b70ebfffb258 | 902 | } |
wim | 15:b70ebfffb258 | 903 | |
wim | 29:a3663151aa65 | 904 | setAddress(0, 0); // Reset Cursor location |
wim | 32:59c4b8f648d4 | 905 | // Note: This is needed because some displays (eg PCF21XX) don't use line 0 in the '3 Line' mode. |
simon | 1:ac48b187213c | 906 | } |
simon | 1:ac48b187213c | 907 | |
wim | 29:a3663151aa65 | 908 | /** Locate cursor to a screen column and row |
wim | 29:a3663151aa65 | 909 | * |
wim | 29:a3663151aa65 | 910 | * @param column The horizontal position from the left, indexed from 0 |
wim | 29:a3663151aa65 | 911 | * @param row The vertical position from the top, indexed from 0 |
wim | 29:a3663151aa65 | 912 | */ |
wim | 21:9eb628d9e164 | 913 | void TextLCD_Base::locate(int column, int row) { |
wim | 15:b70ebfffb258 | 914 | |
wim | 15:b70ebfffb258 | 915 | // setAddress() does all the heavy lifting: |
wim | 15:b70ebfffb258 | 916 | // check column and row sanity, |
wim | 15:b70ebfffb258 | 917 | // switch controllers for LCD40x4 if needed |
wim | 15:b70ebfffb258 | 918 | // switch cursor for LCD40x4 if needed |
wim | 15:b70ebfffb258 | 919 | // set the new memory address to show cursor at correct location |
wim | 32:59c4b8f648d4 | 920 | setAddress(column, row); |
wim | 15:b70ebfffb258 | 921 | } |
wim | 30:033048611c01 | 922 | |
wim | 15:b70ebfffb258 | 923 | |
wim | 21:9eb628d9e164 | 924 | /** Write a single character (Stream implementation) |
wim | 21:9eb628d9e164 | 925 | */ |
wim | 21:9eb628d9e164 | 926 | int TextLCD_Base::_putc(int value) { |
wim | 15:b70ebfffb258 | 927 | int addr; |
wim | 15:b70ebfffb258 | 928 | |
wim | 15:b70ebfffb258 | 929 | if (value == '\n') { |
wim | 15:b70ebfffb258 | 930 | //No character to write |
wim | 15:b70ebfffb258 | 931 | |
wim | 15:b70ebfffb258 | 932 | //Update Cursor |
wim | 15:b70ebfffb258 | 933 | _column = 0; |
wim | 15:b70ebfffb258 | 934 | _row++; |
wim | 15:b70ebfffb258 | 935 | if (_row >= rows()) { |
wim | 15:b70ebfffb258 | 936 | _row = 0; |
wim | 15:b70ebfffb258 | 937 | } |
wim | 15:b70ebfffb258 | 938 | } |
wim | 15:b70ebfffb258 | 939 | else { |
wim | 15:b70ebfffb258 | 940 | //Character to write |
wim | 15:b70ebfffb258 | 941 | _writeData(value); |
wim | 15:b70ebfffb258 | 942 | |
wim | 15:b70ebfffb258 | 943 | //Update Cursor |
wim | 15:b70ebfffb258 | 944 | _column++; |
wim | 15:b70ebfffb258 | 945 | if (_column >= columns()) { |
wim | 15:b70ebfffb258 | 946 | _column = 0; |
wim | 15:b70ebfffb258 | 947 | _row++; |
wim | 15:b70ebfffb258 | 948 | if (_row >= rows()) { |
wim | 15:b70ebfffb258 | 949 | _row = 0; |
wim | 15:b70ebfffb258 | 950 | } |
wim | 15:b70ebfffb258 | 951 | } |
wim | 15:b70ebfffb258 | 952 | } //else |
wim | 15:b70ebfffb258 | 953 | |
wim | 15:b70ebfffb258 | 954 | //Set next memoryaddress, make sure cursor blinks at next location |
wim | 15:b70ebfffb258 | 955 | addr = getAddress(_column, _row); |
wim | 15:b70ebfffb258 | 956 | _writeCommand(0x80 | addr); |
wim | 15:b70ebfffb258 | 957 | |
wim | 15:b70ebfffb258 | 958 | return value; |
wim | 15:b70ebfffb258 | 959 | } |
wim | 15:b70ebfffb258 | 960 | |
wim | 15:b70ebfffb258 | 961 | |
wim | 16:c276b75e6585 | 962 | // get a single character (Stream implementation) |
wim | 21:9eb628d9e164 | 963 | int TextLCD_Base::_getc() { |
simon | 1:ac48b187213c | 964 | return -1; |
simon | 1:ac48b187213c | 965 | } |
simon | 1:ac48b187213c | 966 | |
wim | 14:0c32b66b14b8 | 967 | |
wim | 17:652ab113bc2e | 968 | // Write a nibble using the 4-bit interface |
wim | 21:9eb628d9e164 | 969 | void TextLCD_Base::_writeNibble(int value) { |
wim | 17:652ab113bc2e | 970 | |
wim | 17:652ab113bc2e | 971 | // Enable is Low |
wim | 21:9eb628d9e164 | 972 | this->_setEnable(true); |
wim | 21:9eb628d9e164 | 973 | this->_setData(value & 0x0F); // Low nibble |
wim | 17:652ab113bc2e | 974 | wait_us(1); // Data setup time |
wim | 21:9eb628d9e164 | 975 | this->_setEnable(false); |
wim | 17:652ab113bc2e | 976 | wait_us(1); // Datahold time |
wim | 17:652ab113bc2e | 977 | |
wim | 17:652ab113bc2e | 978 | // Enable is Low |
wim | 17:652ab113bc2e | 979 | } |
wim | 17:652ab113bc2e | 980 | |
wim | 16:c276b75e6585 | 981 | // Write a byte using the 4-bit interface |
wim | 21:9eb628d9e164 | 982 | void TextLCD_Base::_writeByte(int value) { |
wim | 15:b70ebfffb258 | 983 | |
wim | 15:b70ebfffb258 | 984 | // Enable is Low |
wim | 21:9eb628d9e164 | 985 | this->_setEnable(true); |
wim | 21:9eb628d9e164 | 986 | this->_setData(value >> 4); // High nibble |
wim | 15:b70ebfffb258 | 987 | wait_us(1); // Data setup time |
wim | 21:9eb628d9e164 | 988 | this->_setEnable(false); |
wim | 15:b70ebfffb258 | 989 | wait_us(1); // Data hold time |
wim | 15:b70ebfffb258 | 990 | |
wim | 21:9eb628d9e164 | 991 | this->_setEnable(true); |
wim | 21:9eb628d9e164 | 992 | this->_setData(value >> 0); // Low nibble |
wim | 15:b70ebfffb258 | 993 | wait_us(1); // Data setup time |
wim | 21:9eb628d9e164 | 994 | this->_setEnable(false); |
wim | 15:b70ebfffb258 | 995 | wait_us(1); // Datahold time |
wim | 15:b70ebfffb258 | 996 | |
wim | 15:b70ebfffb258 | 997 | // Enable is Low |
simon | 1:ac48b187213c | 998 | } |
simon | 1:ac48b187213c | 999 | |
wim | 21:9eb628d9e164 | 1000 | // Write a command byte to the LCD controller |
wim | 21:9eb628d9e164 | 1001 | void TextLCD_Base::_writeCommand(int command) { |
wim | 15:b70ebfffb258 | 1002 | |
wim | 21:9eb628d9e164 | 1003 | this->_setRS(false); |
wim | 16:c276b75e6585 | 1004 | wait_us(1); // Data setup time for RS |
wim | 15:b70ebfffb258 | 1005 | |
wim | 21:9eb628d9e164 | 1006 | this->_writeByte(command); |
wim | 15:b70ebfffb258 | 1007 | wait_us(40); // most instructions take 40us |
simon | 1:ac48b187213c | 1008 | } |
simon | 1:ac48b187213c | 1009 | |
wim | 21:9eb628d9e164 | 1010 | // Write a data byte to the LCD controller |
wim | 21:9eb628d9e164 | 1011 | void TextLCD_Base::_writeData(int data) { |
wim | 15:b70ebfffb258 | 1012 | |
wim | 21:9eb628d9e164 | 1013 | this->_setRS(true); |
wim | 16:c276b75e6585 | 1014 | wait_us(1); // Data setup time for RS |
wim | 15:b70ebfffb258 | 1015 | |
wim | 21:9eb628d9e164 | 1016 | this->_writeByte(data); |
wim | 15:b70ebfffb258 | 1017 | wait_us(40); // data writes take 40us |
simon | 1:ac48b187213c | 1018 | } |
simon | 1:ac48b187213c | 1019 | |
wim | 8:03116f75b66e | 1020 | |
wim | 32:59c4b8f648d4 | 1021 | // This replaces the original _address() method. |
wim | 8:03116f75b66e | 1022 | // It is confusing since it returns the memoryaddress or-ed with the set memorycommand 0x80. |
wim | 8:03116f75b66e | 1023 | // Left it in here for compatibility with older code. New applications should use getAddress() instead. |
wim | 21:9eb628d9e164 | 1024 | int TextLCD_Base::_address(int column, int row) { |
wim | 8:03116f75b66e | 1025 | return 0x80 | getAddress(column, row); |
wim | 8:03116f75b66e | 1026 | } |
wim | 8:03116f75b66e | 1027 | |
wim | 30:033048611c01 | 1028 | |
wim | 30:033048611c01 | 1029 | // This is new method to return the memory address based on row, column and displaytype. |
wim | 30:033048611c01 | 1030 | // |
wim | 30:033048611c01 | 1031 | /** Return the memoryaddress of screen column and row location |
wim | 30:033048611c01 | 1032 | * |
wim | 30:033048611c01 | 1033 | * @param column The horizontal position from the left, indexed from 0 |
wim | 30:033048611c01 | 1034 | * @param row The vertical position from the top, indexed from 0 |
wim | 30:033048611c01 | 1035 | * @param return The memoryaddress of screen column and row location |
wim | 30:033048611c01 | 1036 | * |
wim | 30:033048611c01 | 1037 | */ |
wim | 30:033048611c01 | 1038 | int TextLCD_Base::getAddress(int column, int row) { |
wim | 30:033048611c01 | 1039 | |
wim | 30:033048611c01 | 1040 | switch (_addr_mode) { |
wim | 30:033048611c01 | 1041 | |
wim | 30:033048611c01 | 1042 | case LCD_T_A: |
wim | 30:033048611c01 | 1043 | //Default addressing mode for 1, 2 and 4 rows (except 40x4) |
wim | 30:033048611c01 | 1044 | //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 | 1045 | //Displays top rows when less than four are used. |
wim | 30:033048611c01 | 1046 | switch (row) { |
wim | 30:033048611c01 | 1047 | case 0: |
wim | 30:033048611c01 | 1048 | return 0x00 + column; |
wim | 30:033048611c01 | 1049 | case 1: |
wim | 30:033048611c01 | 1050 | return 0x40 + column; |
wim | 30:033048611c01 | 1051 | case 2: |
wim | 30:033048611c01 | 1052 | return 0x00 + _nr_cols + column; |
wim | 30:033048611c01 | 1053 | case 3: |
wim | 30:033048611c01 | 1054 | return 0x40 + _nr_cols + column; |
wim | 30:033048611c01 | 1055 | // Should never get here. |
wim | 30:033048611c01 | 1056 | default: |
wim | 30:033048611c01 | 1057 | return 0x00; |
wim | 30:033048611c01 | 1058 | } |
wim | 30:033048611c01 | 1059 | |
wim | 30:033048611c01 | 1060 | case LCD_T_B: |
wim | 30:033048611c01 | 1061 | // LCD8x2B is a special layout of LCD16x1 |
wim | 30:033048611c01 | 1062 | if (row==0) |
wim | 30:033048611c01 | 1063 | return 0x00 + column; |
wim | 30:033048611c01 | 1064 | else |
wim | 30:033048611c01 | 1065 | // return _nr_cols + column; |
wim | 30:033048611c01 | 1066 | return 0x08 + column; |
wim | 30:033048611c01 | 1067 | |
wim | 30:033048611c01 | 1068 | case LCD_T_C: |
wim | 30:033048611c01 | 1069 | // LCD16x1C is a special layout of LCD8x2 |
wim | 32:59c4b8f648d4 | 1070 | #if(1) |
wim | 32:59c4b8f648d4 | 1071 | if (column < 8) |
wim | 30:033048611c01 | 1072 | return 0x00 + column; |
wim | 30:033048611c01 | 1073 | else |
wim | 30:033048611c01 | 1074 | return 0x40 + (column - 8); |
wim | 32:59c4b8f648d4 | 1075 | #else |
wim | 32:59c4b8f648d4 | 1076 | if (column < (_nr_cols >> 1)) |
wim | 32:59c4b8f648d4 | 1077 | return 0x00 + column; |
wim | 32:59c4b8f648d4 | 1078 | else |
wim | 32:59c4b8f648d4 | 1079 | return 0x40 + (column - (_nr_cols >> 1)); |
wim | 32:59c4b8f648d4 | 1080 | #endif |
wim | 30:033048611c01 | 1081 | |
wim | 30:033048611c01 | 1082 | // Not sure about this one, seems wrong. |
wim | 30:033048611c01 | 1083 | // Left in for compatibility with original library |
wim | 30:033048611c01 | 1084 | // case LCD16x2B: |
wim | 30:033048611c01 | 1085 | // return 0x00 + (row * 40) + column; |
wim | 30:033048611c01 | 1086 | |
wim | 30:033048611c01 | 1087 | |
wim | 30:033048611c01 | 1088 | case LCD_T_D: |
wim | 32:59c4b8f648d4 | 1089 | //Alternate addressing mode for 3 and 4 row displays (except 40x4). Used by PCF21XX, KS0078, ST7036, SSD1803 |
wim | 30:033048611c01 | 1090 | //The 4 available rows start at a hardcoded address. |
wim | 30:033048611c01 | 1091 | //Displays top rows when less than four are used. |
wim | 30:033048611c01 | 1092 | switch (row) { |
wim | 30:033048611c01 | 1093 | case 0: |
wim | 30:033048611c01 | 1094 | return 0x00 + column; |
wim | 30:033048611c01 | 1095 | case 1: |
wim | 30:033048611c01 | 1096 | return 0x20 + column; |
wim | 30:033048611c01 | 1097 | case 2: |
wim | 30:033048611c01 | 1098 | return 0x40 + column; |
wim | 30:033048611c01 | 1099 | case 3: |
wim | 30:033048611c01 | 1100 | return 0x60 + column; |
wim | 30:033048611c01 | 1101 | // Should never get here. |
wim | 30:033048611c01 | 1102 | default: |
wim | 30:033048611c01 | 1103 | return 0x00; |
wim | 30:033048611c01 | 1104 | } |
wim | 30:033048611c01 | 1105 | |
wim | 30:033048611c01 | 1106 | case LCD_T_D1: |
wim | 32:59c4b8f648d4 | 1107 | //Alternate addressing mode for 3 row displays. Used by PCF21XX, KS0078, SSD1803 |
wim | 30:033048611c01 | 1108 | //The 4 available rows start at a hardcoded address. |
wim | 30:033048611c01 | 1109 | //Skips top row of 4 row display and starts display at row 1 |
wim | 30:033048611c01 | 1110 | switch (row) { |
wim | 30:033048611c01 | 1111 | case 0: |
wim | 30:033048611c01 | 1112 | return 0x20 + column; |
wim | 30:033048611c01 | 1113 | case 1: |
wim | 30:033048611c01 | 1114 | return 0x40 + column; |
wim | 30:033048611c01 | 1115 | case 2: |
wim | 30:033048611c01 | 1116 | return 0x60 + column; |
wim | 30:033048611c01 | 1117 | // Should never get here. |
wim | 30:033048611c01 | 1118 | default: |
wim | 30:033048611c01 | 1119 | return 0x00; |
wim | 30:033048611c01 | 1120 | } |
wim | 30:033048611c01 | 1121 | |
wim | 30:033048611c01 | 1122 | case LCD_T_E: |
wim | 30:033048611c01 | 1123 | // LCD40x4 is a special case since it has 2 controllers. |
wim | 30:033048611c01 | 1124 | // Each controller is configured as 40x2 (Type A) |
wim | 30:033048611c01 | 1125 | if (row<2) { |
wim | 30:033048611c01 | 1126 | // Test to see if we need to switch between controllers |
wim | 30:033048611c01 | 1127 | if (_ctrl_idx != _LCDCtrl_0) { |
wim | 30:033048611c01 | 1128 | |
wim | 30:033048611c01 | 1129 | // Second LCD controller Cursor Off |
wim | 30:033048611c01 | 1130 | _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff); |
wim | 30:033048611c01 | 1131 | |
wim | 30:033048611c01 | 1132 | // Select primary controller |
wim | 30:033048611c01 | 1133 | _ctrl_idx = _LCDCtrl_0; |
wim | 30:033048611c01 | 1134 | |
wim | 30:033048611c01 | 1135 | // Restore cursormode on primary LCD controller |
wim | 30:033048611c01 | 1136 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 30:033048611c01 | 1137 | } |
wim | 30:033048611c01 | 1138 | |
wim | 30:033048611c01 | 1139 | return 0x00 + (row * 0x40) + column; |
wim | 30:033048611c01 | 1140 | } |
wim | 30:033048611c01 | 1141 | else { |
wim | 30:033048611c01 | 1142 | |
wim | 30:033048611c01 | 1143 | // Test to see if we need to switch between controllers |
wim | 30:033048611c01 | 1144 | if (_ctrl_idx != _LCDCtrl_1) { |
wim | 30:033048611c01 | 1145 | // Primary LCD controller Cursor Off |
wim | 30:033048611c01 | 1146 | _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff); |
wim | 30:033048611c01 | 1147 | |
wim | 30:033048611c01 | 1148 | // Select secondary controller |
wim | 30:033048611c01 | 1149 | _ctrl_idx = _LCDCtrl_1; |
wim | 30:033048611c01 | 1150 | |
wim | 30:033048611c01 | 1151 | // Restore cursormode on secondary LCD controller |
wim | 30:033048611c01 | 1152 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 30:033048611c01 | 1153 | } |
wim | 30:033048611c01 | 1154 | |
wim | 30:033048611c01 | 1155 | return 0x00 + ((row-2) * 0x40) + column; |
wim | 30:033048611c01 | 1156 | } |
wim | 30:033048611c01 | 1157 | |
wim | 32:59c4b8f648d4 | 1158 | case LCD_T_F: |
wim | 32:59c4b8f648d4 | 1159 | //Alternate addressing mode for 3 row displays. |
wim | 32:59c4b8f648d4 | 1160 | //The first half of 3rd row continues from 1st row, the second half continues from 2nd row. |
wim | 32:59c4b8f648d4 | 1161 | switch (row) { |
wim | 32:59c4b8f648d4 | 1162 | case 0: |
wim | 32:59c4b8f648d4 | 1163 | return 0x00 + column; |
wim | 32:59c4b8f648d4 | 1164 | case 1: |
wim | 32:59c4b8f648d4 | 1165 | return 0x40 + column; |
wim | 32:59c4b8f648d4 | 1166 | case 2: |
wim | 32:59c4b8f648d4 | 1167 | if (column < (_nr_cols >> 1)) // check first or second half of line |
wim | 32:59c4b8f648d4 | 1168 | return (0x00 + _nr_cols + column); |
wim | 32:59c4b8f648d4 | 1169 | else |
wim | 32:59c4b8f648d4 | 1170 | return (0x40 + _nr_cols + (column - (_nr_cols >> 1))); |
wim | 32:59c4b8f648d4 | 1171 | // Should never get here. |
wim | 32:59c4b8f648d4 | 1172 | default: |
wim | 32:59c4b8f648d4 | 1173 | return 0x00; |
wim | 32:59c4b8f648d4 | 1174 | } |
wim | 32:59c4b8f648d4 | 1175 | |
wim | 32:59c4b8f648d4 | 1176 | case LCD_T_G: |
wim | 32:59c4b8f648d4 | 1177 | //Alternate addressing mode for 3 row displays. Used by ST7036 |
wim | 32:59c4b8f648d4 | 1178 | switch (row) { |
wim | 32:59c4b8f648d4 | 1179 | case 0: |
wim | 32:59c4b8f648d4 | 1180 | return 0x00 + column; |
wim | 32:59c4b8f648d4 | 1181 | case 1: |
wim | 32:59c4b8f648d4 | 1182 | return 0x10 + column; |
wim | 32:59c4b8f648d4 | 1183 | case 2: |
wim | 32:59c4b8f648d4 | 1184 | return 0x20 + column; |
wim | 32:59c4b8f648d4 | 1185 | // Should never get here. |
wim | 32:59c4b8f648d4 | 1186 | default: |
wim | 32:59c4b8f648d4 | 1187 | return 0x00; |
wim | 32:59c4b8f648d4 | 1188 | } |
wim | 32:59c4b8f648d4 | 1189 | |
wim | 30:033048611c01 | 1190 | // Should never get here. |
wim | 30:033048611c01 | 1191 | default: |
wim | 30:033048611c01 | 1192 | return 0x00; |
wim | 32:59c4b8f648d4 | 1193 | |
wim | 32:59c4b8f648d4 | 1194 | } // switch _addr_mode |
wim | 30:033048611c01 | 1195 | } |
wim | 30:033048611c01 | 1196 | |
wim | 30:033048611c01 | 1197 | |
wim | 29:a3663151aa65 | 1198 | /** Set the memoryaddress of screen column and row location |
wim | 29:a3663151aa65 | 1199 | * |
wim | 29:a3663151aa65 | 1200 | * @param column The horizontal position from the left, indexed from 0 |
wim | 29:a3663151aa65 | 1201 | * @param row The vertical position from the top, indexed from 0 |
wim | 29:a3663151aa65 | 1202 | */ |
wim | 21:9eb628d9e164 | 1203 | void TextLCD_Base::setAddress(int column, int row) { |
wim | 15:b70ebfffb258 | 1204 | |
wim | 15:b70ebfffb258 | 1205 | // Sanity Check column |
wim | 15:b70ebfffb258 | 1206 | if (column < 0) { |
wim | 15:b70ebfffb258 | 1207 | _column = 0; |
wim | 15:b70ebfffb258 | 1208 | } |
wim | 15:b70ebfffb258 | 1209 | else if (column >= columns()) { |
wim | 15:b70ebfffb258 | 1210 | _column = columns() - 1; |
wim | 15:b70ebfffb258 | 1211 | } else _column = column; |
wim | 8:03116f75b66e | 1212 | |
wim | 15:b70ebfffb258 | 1213 | // Sanity Check row |
wim | 15:b70ebfffb258 | 1214 | if (row < 0) { |
wim | 15:b70ebfffb258 | 1215 | _row = 0; |
wim | 15:b70ebfffb258 | 1216 | } |
wim | 15:b70ebfffb258 | 1217 | else if (row >= rows()) { |
wim | 15:b70ebfffb258 | 1218 | _row = rows() - 1; |
wim | 15:b70ebfffb258 | 1219 | } else _row = row; |
wim | 15:b70ebfffb258 | 1220 | |
wim | 15:b70ebfffb258 | 1221 | |
wim | 15:b70ebfffb258 | 1222 | // Compute the memory address |
wim | 15:b70ebfffb258 | 1223 | // For LCD40x4: switch controllers if needed |
wim | 15:b70ebfffb258 | 1224 | // switch cursor if needed |
wim | 15:b70ebfffb258 | 1225 | int addr = getAddress(_column, _row); |
wim | 8:03116f75b66e | 1226 | |
wim | 13:24506ba22480 | 1227 | _writeCommand(0x80 | addr); |
wim | 8:03116f75b66e | 1228 | } |
simon | 1:ac48b187213c | 1229 | |
wim | 29:a3663151aa65 | 1230 | |
wim | 29:a3663151aa65 | 1231 | /** Return the number of columns |
wim | 29:a3663151aa65 | 1232 | * |
wim | 29:a3663151aa65 | 1233 | * @param return The number of columns |
wim | 30:033048611c01 | 1234 | * |
wim | 30:033048611c01 | 1235 | * Note: some configurations are commented out because they have not yet been tested due to lack of hardware |
wim | 29:a3663151aa65 | 1236 | */ |
wim | 21:9eb628d9e164 | 1237 | int TextLCD_Base::columns() { |
wim | 30:033048611c01 | 1238 | |
wim | 30:033048611c01 | 1239 | // Columns encoded in b7..b0 |
wim | 30:033048611c01 | 1240 | //return (_type & 0xFF); |
wim | 31:ef31cd8a00d1 | 1241 | return _nr_cols; |
simon | 1:ac48b187213c | 1242 | } |
simon | 1:ac48b187213c | 1243 | |
wim | 29:a3663151aa65 | 1244 | /** Return the number of rows |
wim | 29:a3663151aa65 | 1245 | * |
wim | 29:a3663151aa65 | 1246 | * @param return The number of rows |
wim | 30:033048611c01 | 1247 | * |
wim | 30:033048611c01 | 1248 | * Note: some configurations are commented out because they have not yet been tested due to lack of hardware |
wim | 29:a3663151aa65 | 1249 | */ |
wim | 21:9eb628d9e164 | 1250 | int TextLCD_Base::rows() { |
wim | 30:033048611c01 | 1251 | |
wim | 30:033048611c01 | 1252 | // Rows encoded in b15..b8 |
wim | 30:033048611c01 | 1253 | //return ((_type >> 8) & 0xFF); |
wim | 30:033048611c01 | 1254 | return _nr_rows; |
simon | 1:ac48b187213c | 1255 | } |
wim | 10:dd9b3a696acd | 1256 | |
wim | 29:a3663151aa65 | 1257 | /** Set the Cursormode |
wim | 29:a3663151aa65 | 1258 | * |
wim | 29:a3663151aa65 | 1259 | * @param cursorMode The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn) |
wim | 29:a3663151aa65 | 1260 | */ |
wim | 21:9eb628d9e164 | 1261 | void TextLCD_Base::setCursor(LCDCursor cursorMode) { |
wim | 15:b70ebfffb258 | 1262 | |
wim | 17:652ab113bc2e | 1263 | // Save new cursor mode, needed when 2 controllers are in use or when display is switched off/on |
wim | 17:652ab113bc2e | 1264 | _currentCursor = cursorMode; |
wim | 10:dd9b3a696acd | 1265 | |
wim | 17:652ab113bc2e | 1266 | // Configure only current LCD controller |
wim | 31:ef31cd8a00d1 | 1267 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 15:b70ebfffb258 | 1268 | } |
wim | 15:b70ebfffb258 | 1269 | |
wim | 29:a3663151aa65 | 1270 | /** Set the Displaymode |
wim | 29:a3663151aa65 | 1271 | * |
wim | 29:a3663151aa65 | 1272 | * @param displayMode The Display mode (DispOff, DispOn) |
wim | 29:a3663151aa65 | 1273 | */ |
wim | 21:9eb628d9e164 | 1274 | void TextLCD_Base::setMode(LCDMode displayMode) { |
wim | 17:652ab113bc2e | 1275 | |
wim | 17:652ab113bc2e | 1276 | // Save new displayMode, needed when 2 controllers are in use or when cursor is changed |
wim | 17:652ab113bc2e | 1277 | _currentMode = displayMode; |
wim | 15:b70ebfffb258 | 1278 | |
wim | 17:652ab113bc2e | 1279 | // Select and configure second LCD controller when needed |
wim | 17:652ab113bc2e | 1280 | if(_type==LCD40x4) { |
wim | 21:9eb628d9e164 | 1281 | if (_ctrl_idx==_LCDCtrl_0) { |
wim | 17:652ab113bc2e | 1282 | // Configure primary LCD controller |
wim | 17:652ab113bc2e | 1283 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 11:9ec02df863a1 | 1284 | |
wim | 17:652ab113bc2e | 1285 | // Select 2nd controller |
wim | 21:9eb628d9e164 | 1286 | _ctrl_idx=_LCDCtrl_1; |
wim | 17:652ab113bc2e | 1287 | |
wim | 17:652ab113bc2e | 1288 | // Configure secondary LCD controller |
wim | 21:9eb628d9e164 | 1289 | _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff); |
wim | 11:9ec02df863a1 | 1290 | |
wim | 17:652ab113bc2e | 1291 | // Restore current controller |
wim | 21:9eb628d9e164 | 1292 | _ctrl_idx=_LCDCtrl_0; |
wim | 17:652ab113bc2e | 1293 | } |
wim | 17:652ab113bc2e | 1294 | else { |
wim | 17:652ab113bc2e | 1295 | // Select primary controller |
wim | 21:9eb628d9e164 | 1296 | _ctrl_idx=_LCDCtrl_0; |
wim | 17:652ab113bc2e | 1297 | |
wim | 17:652ab113bc2e | 1298 | // Configure primary LCD controller |
wim | 21:9eb628d9e164 | 1299 | _setCursorAndDisplayMode(_currentMode, CurOff_BlkOff); |
wim | 17:652ab113bc2e | 1300 | |
wim | 17:652ab113bc2e | 1301 | // Restore current controller |
wim | 21:9eb628d9e164 | 1302 | _ctrl_idx=_LCDCtrl_1; |
wim | 11:9ec02df863a1 | 1303 | |
wim | 17:652ab113bc2e | 1304 | // Configure secondary LCD controller |
wim | 17:652ab113bc2e | 1305 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 10:dd9b3a696acd | 1306 | } |
wim | 17:652ab113bc2e | 1307 | } |
wim | 17:652ab113bc2e | 1308 | else { |
wim | 17:652ab113bc2e | 1309 | // Configure primary LCD controller |
wim | 17:652ab113bc2e | 1310 | _setCursorAndDisplayMode(_currentMode, _currentCursor); |
wim | 30:033048611c01 | 1311 | } |
wim | 17:652ab113bc2e | 1312 | } |
wim | 17:652ab113bc2e | 1313 | |
wim | 17:652ab113bc2e | 1314 | |
wim | 29:a3663151aa65 | 1315 | /** Low level method to restore the cursortype and display mode for current controller |
wim | 29:a3663151aa65 | 1316 | */ |
wim | 21:9eb628d9e164 | 1317 | void TextLCD_Base::_setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType) { |
wim | 17:652ab113bc2e | 1318 | |
wim | 17:652ab113bc2e | 1319 | // Configure current LCD controller |
wim | 17:652ab113bc2e | 1320 | _writeCommand(0x08 | displayMode | cursorType); |
wim | 10:dd9b3a696acd | 1321 | } |
wim | 10:dd9b3a696acd | 1322 | |
wim | 29:a3663151aa65 | 1323 | /** Set the Backlight mode |
wim | 29:a3663151aa65 | 1324 | * |
wim | 29:a3663151aa65 | 1325 | * @param backlightMode The Backlight mode (LightOff, LightOn) |
wim | 29:a3663151aa65 | 1326 | */ |
wim | 21:9eb628d9e164 | 1327 | void TextLCD_Base::setBacklight(LCDBacklight backlightMode) { |
wim | 20:e0da005a777f | 1328 | |
wim | 20:e0da005a777f | 1329 | if (backlightMode == LightOn) { |
wim | 21:9eb628d9e164 | 1330 | this->_setBL(true); |
wim | 20:e0da005a777f | 1331 | } |
wim | 20:e0da005a777f | 1332 | else { |
wim | 21:9eb628d9e164 | 1333 | this->_setBL(false); |
wim | 20:e0da005a777f | 1334 | } |
wim | 20:e0da005a777f | 1335 | } |
wim | 20:e0da005a777f | 1336 | |
wim | 29:a3663151aa65 | 1337 | /** Set User Defined Characters |
wim | 29:a3663151aa65 | 1338 | * |
wim | 29:a3663151aa65 | 1339 | * @param unsigned char c The Index of the UDC (0..7) |
wim | 29:a3663151aa65 | 1340 | * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits) |
wim | 29:a3663151aa65 | 1341 | */ |
wim | 21:9eb628d9e164 | 1342 | void TextLCD_Base::setUDC(unsigned char c, char *udc_data) { |
wim | 15:b70ebfffb258 | 1343 | |
wim | 15:b70ebfffb258 | 1344 | // Select and configure second LCD controller when needed |
wim | 15:b70ebfffb258 | 1345 | if(_type==LCD40x4) { |
wim | 19:c747b9e2e7b8 | 1346 | _LCDCtrl_Idx current_ctrl_idx = _ctrl_idx; // Temp save current controller |
wim | 15:b70ebfffb258 | 1347 | |
wim | 15:b70ebfffb258 | 1348 | // Select primary controller |
wim | 21:9eb628d9e164 | 1349 | _ctrl_idx=_LCDCtrl_0; |
wim | 15:b70ebfffb258 | 1350 | |
wim | 15:b70ebfffb258 | 1351 | // Configure primary LCD controller |
wim | 15:b70ebfffb258 | 1352 | _setUDC(c, udc_data); |
wim | 15:b70ebfffb258 | 1353 | |
wim | 15:b70ebfffb258 | 1354 | // Select 2nd controller |
wim | 21:9eb628d9e164 | 1355 | _ctrl_idx=_LCDCtrl_1; |
wim | 15:b70ebfffb258 | 1356 | |
wim | 15:b70ebfffb258 | 1357 | // Configure secondary LCD controller |
wim | 15:b70ebfffb258 | 1358 | _setUDC(c, udc_data); |
wim | 11:9ec02df863a1 | 1359 | |
wim | 15:b70ebfffb258 | 1360 | // Restore current controller |
wim | 19:c747b9e2e7b8 | 1361 | _ctrl_idx=current_ctrl_idx; |
wim | 15:b70ebfffb258 | 1362 | } |
wim | 15:b70ebfffb258 | 1363 | else { |
wim | 15:b70ebfffb258 | 1364 | // Configure primary LCD controller |
wim | 15:b70ebfffb258 | 1365 | _setUDC(c, udc_data); |
wim | 15:b70ebfffb258 | 1366 | } |
wim | 15:b70ebfffb258 | 1367 | |
wim | 15:b70ebfffb258 | 1368 | } |
wim | 15:b70ebfffb258 | 1369 | |
wim | 29:a3663151aa65 | 1370 | /** Low level method to store user defined characters for current controller |
wim | 29:a3663151aa65 | 1371 | */ |
wim | 21:9eb628d9e164 | 1372 | void TextLCD_Base::_setUDC(unsigned char c, char *udc_data) { |
wim | 15:b70ebfffb258 | 1373 | |
wim | 15:b70ebfffb258 | 1374 | // Select CG RAM for current LCD controller |
wim | 15:b70ebfffb258 | 1375 | _writeCommand(0x40 + ((c & 0x07) << 3)); //Set CG-RAM address, |
wim | 15:b70ebfffb258 | 1376 | //8 sequential locations needed per UDC |
wim | 15:b70ebfffb258 | 1377 | // Store UDC pattern |
wim | 11:9ec02df863a1 | 1378 | for (int i=0; i<8; i++) { |
wim | 13:24506ba22480 | 1379 | _writeData(*udc_data++); |
wim | 11:9ec02df863a1 | 1380 | } |
wim | 15:b70ebfffb258 | 1381 | |
wim | 15:b70ebfffb258 | 1382 | //Select DD RAM again for current LCD controller |
wim | 15:b70ebfffb258 | 1383 | int addr = getAddress(_column, _row); |
wim | 30:033048611c01 | 1384 | _writeCommand(0x80 | addr); |
wim | 11:9ec02df863a1 | 1385 | } |
wim | 21:9eb628d9e164 | 1386 | |
wim | 32:59c4b8f648d4 | 1387 | |
wim | 32:59c4b8f648d4 | 1388 | /** Set Contrast |
wim | 32:59c4b8f648d4 | 1389 | * setContrast method is supported by some compatible devices (eg ST7032i) that have onboard LCD voltage generation |
wim | 32:59c4b8f648d4 | 1390 | * Initial code for ST70XX imported from fork by JH1PJL |
wim | 32:59c4b8f648d4 | 1391 | * |
wim | 32:59c4b8f648d4 | 1392 | * @param unsigned char c contrast data (6 significant bits, valid range 0..63, Value 0 will disable the Vgen) |
wim | 32:59c4b8f648d4 | 1393 | * @return none |
wim | 32:59c4b8f648d4 | 1394 | */ |
wim | 32:59c4b8f648d4 | 1395 | //@TODO Add support for 40x4 dual controller |
wim | 32:59c4b8f648d4 | 1396 | void TextLCD_Base::setContrast(unsigned char c) { |
wim | 32:59c4b8f648d4 | 1397 | |
wim | 32:59c4b8f648d4 | 1398 | // Function set mode stored during Init. Make sure we dont accidentally switch between 1-line and 2-line mode! |
wim | 32:59c4b8f648d4 | 1399 | // Icon/Booster mode stored during Init. Make sure we dont accidentally change this! |
wim | 32:59c4b8f648d4 | 1400 | |
wim | 32:59c4b8f648d4 | 1401 | _contrast = c & 0x3F; // Sanity check |
wim | 32:59c4b8f648d4 | 1402 | |
wim | 32:59c4b8f648d4 | 1403 | switch (_ctrl) { |
wim | 32:59c4b8f648d4 | 1404 | |
wim | 32:59c4b8f648d4 | 1405 | case PCF2113_3V3 : |
wim | 32:59c4b8f648d4 | 1406 | case PCF2119_3V3 : |
wim | 32:59c4b8f648d4 | 1407 | if (_contrast < 5) _contrast = 0; // See datasheet. Sanity check for PCF2113/PCF2119 |
wim | 32:59c4b8f648d4 | 1408 | if (_contrast > 55) _contrast = 55; |
wim | 32:59c4b8f648d4 | 1409 | |
wim | 32:59c4b8f648d4 | 1410 | _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1 |
wim | 32:59c4b8f648d4 | 1411 | _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast |
wim | 32:59c4b8f648d4 | 1412 | _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast |
wim | 32:59c4b8f648d4 | 1413 | _writeCommand(0x20 | _function); // Select Instruction Set = 0 |
wim | 32:59c4b8f648d4 | 1414 | break; |
wim | 32:59c4b8f648d4 | 1415 | |
wim | 32:59c4b8f648d4 | 1416 | case ST7032_3V3 : |
wim | 32:59c4b8f648d4 | 1417 | case ST7032_5V : |
wim | 32:59c4b8f648d4 | 1418 | case ST7036_3V3 : |
wim | 32:59c4b8f648d4 | 1419 | // case ST7036_5V : |
wim | 32:59c4b8f648d4 | 1420 | case SSD1803_3V3 : |
wim | 32:59c4b8f648d4 | 1421 | _writeCommand(0x20 | _function | 0x01); // Select Instruction Set = 1 |
wim | 32:59c4b8f648d4 | 1422 | _writeCommand(0x70 | (_contrast & 0x0F)); // Contrast Low bits |
wim | 32:59c4b8f648d4 | 1423 | _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Contrast High bits |
wim | 32:59c4b8f648d4 | 1424 | _writeCommand(0x20 | _function); // Select Instruction Set = 0 |
wim | 32:59c4b8f648d4 | 1425 | break; |
wim | 32:59c4b8f648d4 | 1426 | |
wim | 32:59c4b8f648d4 | 1427 | #if(0) |
wim | 32:59c4b8f648d4 | 1428 | //not yet tested |
wim | 32:59c4b8f648d4 | 1429 | case PT6314 : |
wim | 32:59c4b8f648d4 | 1430 | // Only 2 significant bits |
wim | 32:59c4b8f648d4 | 1431 | // 0x00 = 100% |
wim | 32:59c4b8f648d4 | 1432 | // 0x01 = 75% |
wim | 32:59c4b8f648d4 | 1433 | // 0x02 = 50% |
wim | 32:59c4b8f648d4 | 1434 | // 0x03 = 25% |
wim | 32:59c4b8f648d4 | 1435 | _writeCommand(0x20 | _function | ((~_contrast) >> 4)); // Invert and shift to use 2 MSBs |
wim | 32:59c4b8f648d4 | 1436 | break; |
wim | 32:59c4b8f648d4 | 1437 | #endif |
wim | 32:59c4b8f648d4 | 1438 | |
wim | 32:59c4b8f648d4 | 1439 | default: |
wim | 32:59c4b8f648d4 | 1440 | //Unsupported feature for other controllers |
wim | 32:59c4b8f648d4 | 1441 | break; |
wim | 32:59c4b8f648d4 | 1442 | |
wim | 32:59c4b8f648d4 | 1443 | } // end switch |
wim | 32:59c4b8f648d4 | 1444 | |
wim | 32:59c4b8f648d4 | 1445 | } |
wim | 32:59c4b8f648d4 | 1446 | |
wim | 32:59c4b8f648d4 | 1447 | |
wim | 32:59c4b8f648d4 | 1448 | /** Set Power |
wim | 32:59c4b8f648d4 | 1449 | * setPower method is supported by some compatible devices (eg SSD1803) that have power down modes |
wim | 32:59c4b8f648d4 | 1450 | * |
wim | 32:59c4b8f648d4 | 1451 | * @param bool powerOn Power on/off |
wim | 32:59c4b8f648d4 | 1452 | * @return none |
wim | 32:59c4b8f648d4 | 1453 | */ |
wim | 32:59c4b8f648d4 | 1454 | //@TODO Add support for 40x4 dual controller |
wim | 32:59c4b8f648d4 | 1455 | void TextLCD_Base::setPower(bool powerOn) { |
wim | 32:59c4b8f648d4 | 1456 | static int _tmp_contrast = LCD_DEF_CONTRAST; |
wim | 32:59c4b8f648d4 | 1457 | |
wim | 32:59c4b8f648d4 | 1458 | if (powerOn) { |
wim | 32:59c4b8f648d4 | 1459 | // Switch on |
wim | 32:59c4b8f648d4 | 1460 | setMode(DispOn); |
wim | 32:59c4b8f648d4 | 1461 | |
wim | 32:59c4b8f648d4 | 1462 | // Try to set contrast=0 |
wim | 32:59c4b8f648d4 | 1463 | _tmp_contrast = _contrast; // Temp. save current contrast |
wim | 32:59c4b8f648d4 | 1464 | setContrast(0); // Contrast 0 |
wim | 32:59c4b8f648d4 | 1465 | |
wim | 32:59c4b8f648d4 | 1466 | // Controllers that supports specific Power Down mode |
wim | 32:59c4b8f648d4 | 1467 | switch (_ctrl) { |
wim | 32:59c4b8f648d4 | 1468 | |
wim | 32:59c4b8f648d4 | 1469 | // case PCF2113_3V3 : |
wim | 32:59c4b8f648d4 | 1470 | // case PCF2119_3V3 : |
wim | 32:59c4b8f648d4 | 1471 | // case ST7032_3V3 : |
wim | 32:59c4b8f648d4 | 1472 | // case ST7032_5V : |
wim | 32:59c4b8f648d4 | 1473 | //@todo |
wim | 32:59c4b8f648d4 | 1474 | |
wim | 32:59c4b8f648d4 | 1475 | case SSD1803_3V3 : |
wim | 32:59c4b8f648d4 | 1476 | // case SSD1803_5V : |
wim | 32:59c4b8f648d4 | 1477 | _writeCommand(0x20 | _function_1 | 0x02); // Select Ext Instr Set |
wim | 32:59c4b8f648d4 | 1478 | _writeCommand(0x03); // Power Down |
wim | 32:59c4b8f648d4 | 1479 | _writeCommand(0x20 | _function); // Select Std Instr Set |
wim | 32:59c4b8f648d4 | 1480 | break; |
wim | 32:59c4b8f648d4 | 1481 | |
wim | 32:59c4b8f648d4 | 1482 | case KS0078: |
wim | 32:59c4b8f648d4 | 1483 | //@todo |
wim | 32:59c4b8f648d4 | 1484 | break; |
wim | 32:59c4b8f648d4 | 1485 | |
wim | 32:59c4b8f648d4 | 1486 | default: |
wim | 32:59c4b8f648d4 | 1487 | //Unsupported feature for other controllers |
wim | 32:59c4b8f648d4 | 1488 | break; |
wim | 32:59c4b8f648d4 | 1489 | } // end switch |
wim | 32:59c4b8f648d4 | 1490 | } |
wim | 32:59c4b8f648d4 | 1491 | else { |
wim | 32:59c4b8f648d4 | 1492 | // Switch off |
wim | 32:59c4b8f648d4 | 1493 | setMode(DispOff); |
wim | 32:59c4b8f648d4 | 1494 | |
wim | 32:59c4b8f648d4 | 1495 | // Try to restore contrast |
wim | 32:59c4b8f648d4 | 1496 | setContrast(_tmp_contrast); // Contrast |
wim | 32:59c4b8f648d4 | 1497 | |
wim | 32:59c4b8f648d4 | 1498 | // Controllers that support specific Power Down mode |
wim | 32:59c4b8f648d4 | 1499 | switch (_ctrl) { |
wim | 32:59c4b8f648d4 | 1500 | |
wim | 32:59c4b8f648d4 | 1501 | // case PCF2113_3V3 : |
wim | 32:59c4b8f648d4 | 1502 | // case PCF2119_3V3 : |
wim | 32:59c4b8f648d4 | 1503 | // case ST7032_3V3 : |
wim | 32:59c4b8f648d4 | 1504 | // case ST7032_5V : |
wim | 32:59c4b8f648d4 | 1505 | //@todo |
wim | 32:59c4b8f648d4 | 1506 | |
wim | 32:59c4b8f648d4 | 1507 | case SSD1803_3V3 : |
wim | 32:59c4b8f648d4 | 1508 | // case SSD1803_5V : |
wim | 32:59c4b8f648d4 | 1509 | _writeCommand(0x20 | _function_1 | 0x02); // Select Ext Instr Set |
wim | 32:59c4b8f648d4 | 1510 | _writeCommand(0x02); // Power On |
wim | 32:59c4b8f648d4 | 1511 | _writeCommand(0x20 | _function); // Select Std Instr Set |
wim | 32:59c4b8f648d4 | 1512 | break; |
wim | 32:59c4b8f648d4 | 1513 | |
wim | 32:59c4b8f648d4 | 1514 | case KS0078: |
wim | 32:59c4b8f648d4 | 1515 | //@todo |
wim | 32:59c4b8f648d4 | 1516 | break; |
wim | 32:59c4b8f648d4 | 1517 | |
wim | 32:59c4b8f648d4 | 1518 | default: |
wim | 32:59c4b8f648d4 | 1519 | //Unsupported feature for other controllers |
wim | 32:59c4b8f648d4 | 1520 | break; |
wim | 32:59c4b8f648d4 | 1521 | } // end switch |
wim | 32:59c4b8f648d4 | 1522 | |
wim | 32:59c4b8f648d4 | 1523 | } |
wim | 32:59c4b8f648d4 | 1524 | |
wim | 32:59c4b8f648d4 | 1525 | } |
wim | 32:59c4b8f648d4 | 1526 | |
wim | 23:d47f226efb24 | 1527 | //--------- End TextLCD_Base ----------- |
wim | 21:9eb628d9e164 | 1528 | |
wim | 22:35742ec80c24 | 1529 | |
wim | 23:d47f226efb24 | 1530 | //--------- Start TextLCD Bus ----------- |
wim | 21:9eb628d9e164 | 1531 | |
wim | 21:9eb628d9e164 | 1532 | /* Create a TextLCD interface for using regular mbed pins |
wim | 21:9eb628d9e164 | 1533 | * |
wim | 21:9eb628d9e164 | 1534 | * @param rs Instruction/data control line |
wim | 21:9eb628d9e164 | 1535 | * @param e Enable line (clock) |
wim | 21:9eb628d9e164 | 1536 | * @param d4-d7 Data lines for using as a 4-bit interface |
wim | 21:9eb628d9e164 | 1537 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 21:9eb628d9e164 | 1538 | * @param bl Backlight control line (optional, default = NC) |
wim | 21:9eb628d9e164 | 1539 | * @param e2 Enable2 line (clock for second controller, LCD40x4 only) |
wim | 21:9eb628d9e164 | 1540 | * @param ctrl LCD controller (default = HD44780) |
wim | 21:9eb628d9e164 | 1541 | */ |
wim | 21:9eb628d9e164 | 1542 | TextLCD::TextLCD(PinName rs, PinName e, |
wim | 21:9eb628d9e164 | 1543 | PinName d4, PinName d5, PinName d6, PinName d7, |
wim | 21:9eb628d9e164 | 1544 | LCDType type, PinName bl, PinName e2, LCDCtrl ctrl) : |
wim | 21:9eb628d9e164 | 1545 | TextLCD_Base(type, ctrl), |
wim | 22:35742ec80c24 | 1546 | _rs(rs), _e(e), _d(d4, d5, d6, d7) { |
wim | 22:35742ec80c24 | 1547 | |
wim | 22:35742ec80c24 | 1548 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 22:35742ec80c24 | 1549 | if (bl != NC) { |
wim | 22:35742ec80c24 | 1550 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 22:35742ec80c24 | 1551 | _bl->write(0); //Deactivate |
wim | 22:35742ec80c24 | 1552 | } |
wim | 22:35742ec80c24 | 1553 | else { |
wim | 22:35742ec80c24 | 1554 | // No Hardware Backlight pin |
wim | 22:35742ec80c24 | 1555 | _bl = NULL; //Construct dummy pin |
wim | 22:35742ec80c24 | 1556 | } |
wim | 22:35742ec80c24 | 1557 | |
wim | 22:35742ec80c24 | 1558 | // 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 | 1559 | if (e2 != NC) { |
wim | 22:35742ec80c24 | 1560 | _e2 = new DigitalOut(e2); //Construct new pin |
wim | 22:35742ec80c24 | 1561 | _e2->write(0); //Deactivate |
wim | 22:35742ec80c24 | 1562 | } |
wim | 22:35742ec80c24 | 1563 | else { |
wim | 22:35742ec80c24 | 1564 | // No Hardware Enable pin |
wim | 22:35742ec80c24 | 1565 | _e2 = NULL; //Construct dummy pin |
wim | 22:35742ec80c24 | 1566 | } |
wim | 21:9eb628d9e164 | 1567 | |
wim | 21:9eb628d9e164 | 1568 | _init(); |
wim | 21:9eb628d9e164 | 1569 | } |
wim | 21:9eb628d9e164 | 1570 | |
wim | 29:a3663151aa65 | 1571 | /** Destruct a TextLCD interface for using regular mbed pins |
wim | 29:a3663151aa65 | 1572 | * |
wim | 29:a3663151aa65 | 1573 | * @param none |
wim | 29:a3663151aa65 | 1574 | * @return none |
wim | 29:a3663151aa65 | 1575 | */ |
wim | 29:a3663151aa65 | 1576 | TextLCD::~TextLCD() { |
wim | 29:a3663151aa65 | 1577 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 29:a3663151aa65 | 1578 | if (_e2 != NULL) {delete _e2;} // E2 pin |
wim | 29:a3663151aa65 | 1579 | } |
wim | 29:a3663151aa65 | 1580 | |
wim | 29:a3663151aa65 | 1581 | |
wim | 22:35742ec80c24 | 1582 | /** Set E pin (or E2 pin) |
wim | 22:35742ec80c24 | 1583 | * Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 22:35742ec80c24 | 1584 | * Default PinName value for E2 is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins |
wim | 22:35742ec80c24 | 1585 | * @param value true or false |
wim | 22:35742ec80c24 | 1586 | * @return none |
wim | 22:35742ec80c24 | 1587 | */ |
wim | 21:9eb628d9e164 | 1588 | void TextLCD::_setEnable(bool value) { |
wim | 21:9eb628d9e164 | 1589 | |
wim | 22:35742ec80c24 | 1590 | if(_ctrl_idx==_LCDCtrl_0) { |
wim | 22:35742ec80c24 | 1591 | if (value) { |
wim | 22:35742ec80c24 | 1592 | _e = 1; // Set E bit |
wim | 22:35742ec80c24 | 1593 | } |
wim | 22:35742ec80c24 | 1594 | else { |
wim | 22:35742ec80c24 | 1595 | _e = 0; // Reset E bit |
wim | 22:35742ec80c24 | 1596 | } |
wim | 22:35742ec80c24 | 1597 | } |
wim | 22:35742ec80c24 | 1598 | else { |
wim | 22:35742ec80c24 | 1599 | if (value) { |
wim | 22:35742ec80c24 | 1600 | if (_e2 != NULL) {_e2->write(1);} //Set E2 bit |
wim | 22:35742ec80c24 | 1601 | } |
wim | 22:35742ec80c24 | 1602 | else { |
wim | 22:35742ec80c24 | 1603 | if (_e2 != NULL) {_e2->write(0);} //Reset E2 bit |
wim | 22:35742ec80c24 | 1604 | } |
wim | 22:35742ec80c24 | 1605 | } |
wim | 21:9eb628d9e164 | 1606 | } |
wim | 21:9eb628d9e164 | 1607 | |
wim | 21:9eb628d9e164 | 1608 | // Set RS pin |
wim | 21:9eb628d9e164 | 1609 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 1610 | void TextLCD::_setRS(bool value) { |
wim | 21:9eb628d9e164 | 1611 | |
wim | 22:35742ec80c24 | 1612 | if (value) { |
wim | 21:9eb628d9e164 | 1613 | _rs = 1; // Set RS bit |
wim | 22:35742ec80c24 | 1614 | } |
wim | 22:35742ec80c24 | 1615 | else { |
wim | 21:9eb628d9e164 | 1616 | _rs = 0; // Reset RS bit |
wim | 22:35742ec80c24 | 1617 | } |
wim | 21:9eb628d9e164 | 1618 | } |
wim | 21:9eb628d9e164 | 1619 | |
wim | 22:35742ec80c24 | 1620 | /** Set BL pin |
wim | 22:35742ec80c24 | 1621 | * Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 22:35742ec80c24 | 1622 | * Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins |
wim | 22:35742ec80c24 | 1623 | * @param value true or false |
wim | 22:35742ec80c24 | 1624 | * @return none |
wim | 22:35742ec80c24 | 1625 | */ |
wim | 21:9eb628d9e164 | 1626 | void TextLCD::_setBL(bool value) { |
wim | 21:9eb628d9e164 | 1627 | |
wim | 22:35742ec80c24 | 1628 | if (value) { |
wim | 22:35742ec80c24 | 1629 | if (_bl != NULL) {_bl->write(1);} //Set BL bit |
wim | 22:35742ec80c24 | 1630 | } |
wim | 22:35742ec80c24 | 1631 | else { |
wim | 22:35742ec80c24 | 1632 | if (_bl != NULL) {_bl->write(0);} //Reset BL bit |
wim | 22:35742ec80c24 | 1633 | } |
wim | 21:9eb628d9e164 | 1634 | |
wim | 21:9eb628d9e164 | 1635 | } |
wim | 21:9eb628d9e164 | 1636 | |
wim | 21:9eb628d9e164 | 1637 | // Place the 4bit data on the databus |
wim | 21:9eb628d9e164 | 1638 | // Used for mbed pins, I2C bus expander or SPI shifregister |
wim | 21:9eb628d9e164 | 1639 | void TextLCD::_setData(int value) { |
wim | 21:9eb628d9e164 | 1640 | _d = value & 0x0F; // Write Databits |
wim | 21:9eb628d9e164 | 1641 | } |
wim | 22:35742ec80c24 | 1642 | |
wim | 23:d47f226efb24 | 1643 | //----------- End TextLCD --------------- |
wim | 21:9eb628d9e164 | 1644 | |
wim | 21:9eb628d9e164 | 1645 | |
wim | 23:d47f226efb24 | 1646 | //--------- Start TextLCD_I2C ----------- |
wim | 22:35742ec80c24 | 1647 | |
wim | 26:bd897a001012 | 1648 | /** Create a TextLCD interface using an I2C PC8574 (or PCF8574A) or MCP23008 portexpander |
wim | 22:35742ec80c24 | 1649 | * |
wim | 22:35742ec80c24 | 1650 | * @param i2c I2C Bus |
wim | 26:bd897a001012 | 1651 | * @param deviceAddress I2C slave address (PCF8574, PCF8574A or MCP23008, default = 0x40) |
wim | 22:35742ec80c24 | 1652 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 22:35742ec80c24 | 1653 | * @param ctrl LCD controller (default = HD44780) |
wim | 22:35742ec80c24 | 1654 | */ |
wim | 21:9eb628d9e164 | 1655 | TextLCD_I2C::TextLCD_I2C(I2C *i2c, char deviceAddress, LCDType type, LCDCtrl ctrl) : |
wim | 21:9eb628d9e164 | 1656 | TextLCD_Base(type, ctrl), |
wim | 21:9eb628d9e164 | 1657 | _i2c(i2c){ |
wim | 21:9eb628d9e164 | 1658 | |
wim | 22:35742ec80c24 | 1659 | _slaveAddress = deviceAddress & 0xFE; |
wim | 28:30fa94f7341c | 1660 | |
wim | 28:30fa94f7341c | 1661 | // Setup the I2C bus |
wim | 28:30fa94f7341c | 1662 | // The max bitrate for PCF8574 is 100kbit, the max bitrate for MCP23008 is 400kbit, |
wim | 32:59c4b8f648d4 | 1663 | _i2c->frequency(100000); |
wim | 21:9eb628d9e164 | 1664 | |
wim | 26:bd897a001012 | 1665 | #if (MCP23008==1) |
wim | 26:bd897a001012 | 1666 | // MCP23008 portexpander Init |
wim | 27:22d5086f6ba6 | 1667 | _write_register(IODIR, 0x00); // All outputs |
wim | 27:22d5086f6ba6 | 1668 | _write_register(IPOL, 0x00); // No reverse polarity |
wim | 27:22d5086f6ba6 | 1669 | _write_register(GPINTEN, 0x00); // No interrupt |
wim | 27:22d5086f6ba6 | 1670 | _write_register(DEFVAL, 0x00); // Default value to compare against for interrupts |
wim | 27:22d5086f6ba6 | 1671 | _write_register(INTCON, 0x00); // No interrupt on changes |
wim | 27:22d5086f6ba6 | 1672 | _write_register(IOCON, 0x00); // Interrupt polarity |
wim | 27:22d5086f6ba6 | 1673 | _write_register(GPPU, 0x00); // No Pullup |
wim | 27:22d5086f6ba6 | 1674 | _write_register(INTF, 0x00); // |
wim | 27:22d5086f6ba6 | 1675 | _write_register(INTCAP, 0x00); // |
wim | 27:22d5086f6ba6 | 1676 | _write_register(GPIO, 0x00); // Output/Input pins |
wim | 27:22d5086f6ba6 | 1677 | _write_register(OLAT, 0x00); // Output Latch |
wim | 26:bd897a001012 | 1678 | |
wim | 21:9eb628d9e164 | 1679 | // Init the portexpander bus |
wim | 21:9eb628d9e164 | 1680 | _lcd_bus = D_LCD_BUS_DEF; |
wim | 21:9eb628d9e164 | 1681 | |
wim | 21:9eb628d9e164 | 1682 | // write the new data to the portexpander |
wim | 26:bd897a001012 | 1683 | _write_register(GPIO, _lcd_bus); |
wim | 26:bd897a001012 | 1684 | #else |
wim | 26:bd897a001012 | 1685 | // PCF8574 of PCF8574A portexpander |
wim | 26:bd897a001012 | 1686 | |
wim | 26:bd897a001012 | 1687 | // Init the portexpander bus |
wim | 26:bd897a001012 | 1688 | _lcd_bus = D_LCD_BUS_DEF; |
wim | 26:bd897a001012 | 1689 | |
wim | 26:bd897a001012 | 1690 | // write the new data to the portexpander |
wim | 21:9eb628d9e164 | 1691 | _i2c->write(_slaveAddress, &_lcd_bus, 1); |
wim | 26:bd897a001012 | 1692 | #endif |
wim | 21:9eb628d9e164 | 1693 | |
wim | 30:033048611c01 | 1694 | _init(); |
wim | 21:9eb628d9e164 | 1695 | } |
wim | 21:9eb628d9e164 | 1696 | |
wim | 21:9eb628d9e164 | 1697 | // Set E pin (or E2 pin) |
wim | 21:9eb628d9e164 | 1698 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 1699 | void TextLCD_I2C::_setEnable(bool value) { |
wim | 21:9eb628d9e164 | 1700 | |
wim | 22:35742ec80c24 | 1701 | if(_ctrl_idx==_LCDCtrl_0) { |
wim | 26:bd897a001012 | 1702 | if (value) { |
wim | 22:35742ec80c24 | 1703 | _lcd_bus |= D_LCD_E; // Set E bit |
wim | 26:bd897a001012 | 1704 | } |
wim | 26:bd897a001012 | 1705 | else { |
wim | 22:35742ec80c24 | 1706 | _lcd_bus &= ~D_LCD_E; // Reset E bit |
wim | 26:bd897a001012 | 1707 | } |
wim | 22:35742ec80c24 | 1708 | } |
wim | 22:35742ec80c24 | 1709 | else { |
wim | 26:bd897a001012 | 1710 | if (value) { |
wim | 22:35742ec80c24 | 1711 | _lcd_bus |= D_LCD_E2; // Set E2 bit |
wim | 26:bd897a001012 | 1712 | } |
wim | 26:bd897a001012 | 1713 | else { |
wim | 22:35742ec80c24 | 1714 | _lcd_bus &= ~D_LCD_E2; // Reset E2bit |
wim | 26:bd897a001012 | 1715 | } |
wim | 26:bd897a001012 | 1716 | } |
wim | 26:bd897a001012 | 1717 | |
wim | 26:bd897a001012 | 1718 | #if (MCP23008==1) |
wim | 26:bd897a001012 | 1719 | // MCP23008 portexpander |
wim | 26:bd897a001012 | 1720 | |
wim | 26:bd897a001012 | 1721 | // write the new data to the portexpander |
wim | 26:bd897a001012 | 1722 | _write_register(GPIO, _lcd_bus); |
wim | 26:bd897a001012 | 1723 | #else |
wim | 26:bd897a001012 | 1724 | // PCF8574 of PCF8574A portexpander |
wim | 21:9eb628d9e164 | 1725 | |
wim | 22:35742ec80c24 | 1726 | // write the new data to the I2C portexpander |
wim | 22:35742ec80c24 | 1727 | _i2c->write(_slaveAddress, &_lcd_bus, 1); |
wim | 26:bd897a001012 | 1728 | #endif |
wim | 21:9eb628d9e164 | 1729 | } |
wim | 21:9eb628d9e164 | 1730 | |
wim | 21:9eb628d9e164 | 1731 | // Set RS pin |
wim | 21:9eb628d9e164 | 1732 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 1733 | void TextLCD_I2C::_setRS(bool value) { |
wim | 21:9eb628d9e164 | 1734 | |
wim | 26:bd897a001012 | 1735 | if (value) { |
wim | 22:35742ec80c24 | 1736 | _lcd_bus |= D_LCD_RS; // Set RS bit |
wim | 26:bd897a001012 | 1737 | } |
wim | 26:bd897a001012 | 1738 | else { |
wim | 22:35742ec80c24 | 1739 | _lcd_bus &= ~D_LCD_RS; // Reset RS bit |
wim | 26:bd897a001012 | 1740 | } |
wim | 26:bd897a001012 | 1741 | |
wim | 26:bd897a001012 | 1742 | #if (MCP23008==1) |
wim | 26:bd897a001012 | 1743 | // MCP23008 portexpander |
wim | 26:bd897a001012 | 1744 | |
wim | 26:bd897a001012 | 1745 | // write the new data to the portexpander |
wim | 26:bd897a001012 | 1746 | _write_register(GPIO, _lcd_bus); |
wim | 26:bd897a001012 | 1747 | #else |
wim | 26:bd897a001012 | 1748 | // PCF8574 of PCF8574A portexpander |
wim | 21:9eb628d9e164 | 1749 | |
wim | 22:35742ec80c24 | 1750 | // write the new data to the I2C portexpander |
wim | 22:35742ec80c24 | 1751 | _i2c->write(_slaveAddress, &_lcd_bus, 1); |
wim | 30:033048611c01 | 1752 | #endif |
wim | 21:9eb628d9e164 | 1753 | } |
wim | 21:9eb628d9e164 | 1754 | |
wim | 21:9eb628d9e164 | 1755 | // Set BL pin |
wim | 21:9eb628d9e164 | 1756 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 1757 | void TextLCD_I2C::_setBL(bool value) { |
wim | 21:9eb628d9e164 | 1758 | |
wim | 26:bd897a001012 | 1759 | if (value) { |
wim | 21:9eb628d9e164 | 1760 | _lcd_bus |= D_LCD_BL; // Set BL bit |
wim | 26:bd897a001012 | 1761 | } |
wim | 26:bd897a001012 | 1762 | else { |
wim | 21:9eb628d9e164 | 1763 | _lcd_bus &= ~D_LCD_BL; // Reset BL bit |
wim | 26:bd897a001012 | 1764 | } |
wim | 26:bd897a001012 | 1765 | |
wim | 26:bd897a001012 | 1766 | #if (MCP23008==1) |
wim | 26:bd897a001012 | 1767 | // MCP23008 portexpander |
wim | 26:bd897a001012 | 1768 | |
wim | 26:bd897a001012 | 1769 | // write the new data to the portexpander |
wim | 26:bd897a001012 | 1770 | _write_register(GPIO, _lcd_bus); |
wim | 26:bd897a001012 | 1771 | #else |
wim | 26:bd897a001012 | 1772 | // PCF8574 of PCF8574A portexpander |
wim | 21:9eb628d9e164 | 1773 | |
wim | 21:9eb628d9e164 | 1774 | // write the new data to the I2C portexpander |
wim | 21:9eb628d9e164 | 1775 | _i2c->write(_slaveAddress, &_lcd_bus, 1); |
wim | 30:033048611c01 | 1776 | #endif |
wim | 21:9eb628d9e164 | 1777 | } |
wim | 21:9eb628d9e164 | 1778 | |
wim | 21:9eb628d9e164 | 1779 | |
wim | 21:9eb628d9e164 | 1780 | // Place the 4bit data on the databus |
wim | 21:9eb628d9e164 | 1781 | // Used for mbed pins, I2C bus expander or SPI shifregister |
wim | 21:9eb628d9e164 | 1782 | void TextLCD_I2C::_setData(int value) { |
wim | 21:9eb628d9e164 | 1783 | int data; |
wim | 22:35742ec80c24 | 1784 | |
wim | 22:35742ec80c24 | 1785 | // Set bit by bit to support any mapping of expander portpins to LCD pins |
wim | 21:9eb628d9e164 | 1786 | |
wim | 22:35742ec80c24 | 1787 | data = value & 0x0F; |
wim | 26:bd897a001012 | 1788 | if (data & 0x01){ |
wim | 22:35742ec80c24 | 1789 | _lcd_bus |= D_LCD_D4; // Set Databit |
wim | 26:bd897a001012 | 1790 | } |
wim | 26:bd897a001012 | 1791 | else { |
wim | 26:bd897a001012 | 1792 | _lcd_bus &= ~D_LCD_D4; // Reset Databit |
wim | 26:bd897a001012 | 1793 | } |
wim | 21:9eb628d9e164 | 1794 | |
wim | 26:bd897a001012 | 1795 | if (data & 0x02){ |
wim | 22:35742ec80c24 | 1796 | _lcd_bus |= D_LCD_D5; // Set Databit |
wim | 26:bd897a001012 | 1797 | } |
wim | 26:bd897a001012 | 1798 | else { |
wim | 26:bd897a001012 | 1799 | _lcd_bus &= ~D_LCD_D5; // Reset Databit |
wim | 26:bd897a001012 | 1800 | } |
wim | 21:9eb628d9e164 | 1801 | |
wim | 26:bd897a001012 | 1802 | if (data & 0x04) { |
wim | 22:35742ec80c24 | 1803 | _lcd_bus |= D_LCD_D6; // Set Databit |
wim | 26:bd897a001012 | 1804 | } |
wim | 26:bd897a001012 | 1805 | else { |
wim | 26:bd897a001012 | 1806 | _lcd_bus &= ~D_LCD_D6; // Reset Databit |
wim | 26:bd897a001012 | 1807 | } |
wim | 21:9eb628d9e164 | 1808 | |
wim | 26:bd897a001012 | 1809 | if (data & 0x08) { |
wim | 22:35742ec80c24 | 1810 | _lcd_bus |= D_LCD_D7; // Set Databit |
wim | 26:bd897a001012 | 1811 | } |
wim | 26:bd897a001012 | 1812 | else { |
wim | 26:bd897a001012 | 1813 | _lcd_bus &= ~D_LCD_D7; // Reset Databit |
wim | 26:bd897a001012 | 1814 | } |
wim | 21:9eb628d9e164 | 1815 | |
wim | 26:bd897a001012 | 1816 | #if (MCP23008==1) |
wim | 26:bd897a001012 | 1817 | // MCP23008 portexpander |
wim | 26:bd897a001012 | 1818 | |
wim | 26:bd897a001012 | 1819 | // write the new data to the portexpander |
wim | 26:bd897a001012 | 1820 | _write_register(GPIO, _lcd_bus); |
wim | 26:bd897a001012 | 1821 | #else |
wim | 26:bd897a001012 | 1822 | // PCF8574 of PCF8574A portexpander |
wim | 26:bd897a001012 | 1823 | |
wim | 22:35742ec80c24 | 1824 | // write the new data to the I2C portexpander |
wim | 26:bd897a001012 | 1825 | _i2c->write(_slaveAddress, &_lcd_bus, 1); |
wim | 26:bd897a001012 | 1826 | #endif |
wim | 22:35742ec80c24 | 1827 | |
wim | 22:35742ec80c24 | 1828 | } |
wim | 21:9eb628d9e164 | 1829 | |
wim | 26:bd897a001012 | 1830 | // Write data to MCP23008 I2C portexpander |
wim | 26:bd897a001012 | 1831 | void TextLCD_I2C::_write_register (int reg, int value) { |
wim | 26:bd897a001012 | 1832 | char data[] = {reg, value}; |
wim | 26:bd897a001012 | 1833 | |
wim | 30:033048611c01 | 1834 | _i2c->write(_slaveAddress, data, 2); |
wim | 26:bd897a001012 | 1835 | } |
wim | 26:bd897a001012 | 1836 | |
wim | 23:d47f226efb24 | 1837 | //---------- End TextLCD_I2C ------------ |
wim | 21:9eb628d9e164 | 1838 | |
wim | 21:9eb628d9e164 | 1839 | |
wim | 28:30fa94f7341c | 1840 | //--------- Start TextLCD_I2C_N --------- |
wim | 28:30fa94f7341c | 1841 | |
wim | 28:30fa94f7341c | 1842 | /** Create a TextLCD interface using a controller with native I2C interface |
wim | 28:30fa94f7341c | 1843 | * |
wim | 28:30fa94f7341c | 1844 | * @param i2c I2C Bus |
wim | 28:30fa94f7341c | 1845 | * @param deviceAddress I2C slave address (default = 0x7C) |
wim | 28:30fa94f7341c | 1846 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 28:30fa94f7341c | 1847 | * @param bl Backlight control line (optional, default = NC) |
wim | 28:30fa94f7341c | 1848 | * @param ctrl LCD controller (default = ST7032_3V3) |
wim | 28:30fa94f7341c | 1849 | */ |
wim | 28:30fa94f7341c | 1850 | TextLCD_I2C_N::TextLCD_I2C_N(I2C *i2c, char deviceAddress, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 28:30fa94f7341c | 1851 | TextLCD_Base(type, ctrl), |
wim | 32:59c4b8f648d4 | 1852 | |
wim | 32:59c4b8f648d4 | 1853 | // _i2c(i2c){ |
wim | 32:59c4b8f648d4 | 1854 | _i2c(i2c), _ps(p20) { |
wim | 32:59c4b8f648d4 | 1855 | //Test |
wim | 32:59c4b8f648d4 | 1856 | // Init PS |
wim | 32:59c4b8f648d4 | 1857 | wait_us(500); |
wim | 32:59c4b8f648d4 | 1858 | _ps = 0; |
wim | 32:59c4b8f648d4 | 1859 | wait_us(250); |
wim | 32:59c4b8f648d4 | 1860 | |
wim | 30:033048611c01 | 1861 | |
wim | 28:30fa94f7341c | 1862 | _slaveAddress = deviceAddress & 0xFE; |
wim | 28:30fa94f7341c | 1863 | |
wim | 28:30fa94f7341c | 1864 | // Setup the I2C bus |
wim | 29:a3663151aa65 | 1865 | // The max bitrate for ST7032i is 400kbit, lets stick to default here |
wim | 29:a3663151aa65 | 1866 | _i2c->frequency(100000); |
wim | 32:59c4b8f648d4 | 1867 | |
wim | 30:033048611c01 | 1868 | |
wim | 28:30fa94f7341c | 1869 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 28:30fa94f7341c | 1870 | if (bl != NC) { |
wim | 28:30fa94f7341c | 1871 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 28:30fa94f7341c | 1872 | _bl->write(0); //Deactivate |
wim | 28:30fa94f7341c | 1873 | } |
wim | 28:30fa94f7341c | 1874 | else { |
wim | 28:30fa94f7341c | 1875 | // No Hardware Backlight pin |
wim | 28:30fa94f7341c | 1876 | _bl = NULL; //Construct dummy pin |
wim | 28:30fa94f7341c | 1877 | } |
wim | 28:30fa94f7341c | 1878 | |
wim | 30:033048611c01 | 1879 | //Sanity check |
wim | 30:033048611c01 | 1880 | if (_ctrl & LCD_C_I2C) { |
wim | 30:033048611c01 | 1881 | _init(); |
wim | 30:033048611c01 | 1882 | } |
wim | 30:033048611c01 | 1883 | else { |
wim | 30:033048611c01 | 1884 | error("Error: LCD Controller type does not support native I2C interface\n\r"); |
wim | 30:033048611c01 | 1885 | } |
wim | 30:033048611c01 | 1886 | |
wim | 28:30fa94f7341c | 1887 | } |
wim | 28:30fa94f7341c | 1888 | |
wim | 28:30fa94f7341c | 1889 | TextLCD_I2C_N::~TextLCD_I2C_N() { |
wim | 28:30fa94f7341c | 1890 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 28:30fa94f7341c | 1891 | } |
wim | 28:30fa94f7341c | 1892 | |
wim | 28:30fa94f7341c | 1893 | // Not used in this mode |
wim | 28:30fa94f7341c | 1894 | void TextLCD_I2C_N::_setEnable(bool value) { |
wim | 28:30fa94f7341c | 1895 | } |
wim | 28:30fa94f7341c | 1896 | |
wim | 28:30fa94f7341c | 1897 | // Set RS pin |
wim | 28:30fa94f7341c | 1898 | // Used for mbed pins, I2C bus expander or SPI shiftregister and native I2C or SPI |
wim | 28:30fa94f7341c | 1899 | void TextLCD_I2C_N::_setRS(bool value) { |
wim | 30:033048611c01 | 1900 | // The controlbyte defines the meaning of the next byte. This next byte can either be data or command. |
wim | 30:033048611c01 | 1901 | // Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop |
wim | 30:033048611c01 | 1902 | // Co RS RW 0 0 0 0 0 command or data |
wim | 30:033048611c01 | 1903 | // |
wim | 30:033048611c01 | 1904 | // C0=1 indicates that another controlbyte will follow after the next data or command byte |
wim | 30:033048611c01 | 1905 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 30:033048611c01 | 1906 | // RW=0 means write to controller. RW=1 means that controller will be read from after the next command. |
wim | 30:033048611c01 | 1907 | // Many native I2C controllers dont support this option and it is not used by this lib. |
wim | 30:033048611c01 | 1908 | // |
wim | 30:033048611c01 | 1909 | |
wim | 28:30fa94f7341c | 1910 | if (value) { |
wim | 28:30fa94f7341c | 1911 | _controlbyte = 0x40; // Next byte is data, No more control bytes will follow |
wim | 28:30fa94f7341c | 1912 | } |
wim | 28:30fa94f7341c | 1913 | else { |
wim | 28:30fa94f7341c | 1914 | _controlbyte = 0x00; // Next byte is command, No more control bytes will follow |
wim | 28:30fa94f7341c | 1915 | } |
wim | 28:30fa94f7341c | 1916 | } |
wim | 28:30fa94f7341c | 1917 | |
wim | 28:30fa94f7341c | 1918 | // Set BL pin |
wim | 28:30fa94f7341c | 1919 | void TextLCD_I2C_N::_setBL(bool value) { |
wim | 28:30fa94f7341c | 1920 | if (_bl) { |
wim | 28:30fa94f7341c | 1921 | _bl->write(value); |
wim | 28:30fa94f7341c | 1922 | } |
wim | 28:30fa94f7341c | 1923 | } |
wim | 29:a3663151aa65 | 1924 | |
wim | 29:a3663151aa65 | 1925 | // Not used in this mode |
wim | 29:a3663151aa65 | 1926 | void TextLCD_I2C_N::_setData(int value) { |
wim | 29:a3663151aa65 | 1927 | } |
wim | 29:a3663151aa65 | 1928 | |
wim | 28:30fa94f7341c | 1929 | // Write a byte using I2C |
wim | 28:30fa94f7341c | 1930 | void TextLCD_I2C_N::_writeByte(int value) { |
wim | 30:033048611c01 | 1931 | // The controlbyte defines the meaning of the next byte. This next byte can either be data or command. |
wim | 30:033048611c01 | 1932 | // Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop |
wim | 30:033048611c01 | 1933 | // Co RS RW 0 0 0 0 0 command or data |
wim | 30:033048611c01 | 1934 | // |
wim | 30:033048611c01 | 1935 | // C0=1 indicates that another controlbyte will follow after the next data or command byte |
wim | 30:033048611c01 | 1936 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 30:033048611c01 | 1937 | // RW=0 means write to controller. RW=1 means that controller will be read from after the next command. |
wim | 30:033048611c01 | 1938 | // Many native I2C controllers dont support this option and it is not used by this lib. |
wim | 30:033048611c01 | 1939 | // |
wim | 28:30fa94f7341c | 1940 | char data[] = {_controlbyte, value}; |
wim | 28:30fa94f7341c | 1941 | |
wim | 32:59c4b8f648d4 | 1942 | #if(LCD_I2C_ACK==1) |
wim | 32:59c4b8f648d4 | 1943 | //Controllers that support ACK |
wim | 30:033048611c01 | 1944 | _i2c->write(_slaveAddress, data, 2); |
wim | 32:59c4b8f648d4 | 1945 | #else |
wim | 32:59c4b8f648d4 | 1946 | //Controllers that dont support ACK |
wim | 32:59c4b8f648d4 | 1947 | _i2c->start(); |
wim | 32:59c4b8f648d4 | 1948 | _i2c->write(_slaveAddress); |
wim | 32:59c4b8f648d4 | 1949 | _i2c->write(data[0]); |
wim | 32:59c4b8f648d4 | 1950 | _i2c->write(data[1]); |
wim | 32:59c4b8f648d4 | 1951 | _i2c->stop(); |
wim | 32:59c4b8f648d4 | 1952 | #endif |
wim | 28:30fa94f7341c | 1953 | } |
wim | 28:30fa94f7341c | 1954 | |
wim | 28:30fa94f7341c | 1955 | //-------- End TextLCD_I2C_N ------------ |
wim | 28:30fa94f7341c | 1956 | |
wim | 28:30fa94f7341c | 1957 | |
wim | 23:d47f226efb24 | 1958 | //--------- Start TextLCD_SPI ----------- |
wim | 21:9eb628d9e164 | 1959 | |
wim | 22:35742ec80c24 | 1960 | /** Create a TextLCD interface using an SPI 74595 portexpander |
wim | 22:35742ec80c24 | 1961 | * |
wim | 22:35742ec80c24 | 1962 | * @param spi SPI Bus |
wim | 22:35742ec80c24 | 1963 | * @param cs chip select pin (active low) |
wim | 22:35742ec80c24 | 1964 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 22:35742ec80c24 | 1965 | * @param ctrl LCD controller (default = HD44780) |
wim | 22:35742ec80c24 | 1966 | */ |
wim | 21:9eb628d9e164 | 1967 | TextLCD_SPI::TextLCD_SPI(SPI *spi, PinName cs, LCDType type, LCDCtrl ctrl) : |
wim | 21:9eb628d9e164 | 1968 | TextLCD_Base(type, ctrl), |
wim | 21:9eb628d9e164 | 1969 | _spi(spi), |
wim | 21:9eb628d9e164 | 1970 | _cs(cs) { |
wim | 21:9eb628d9e164 | 1971 | |
wim | 32:59c4b8f648d4 | 1972 | // Init cs |
wim | 32:59c4b8f648d4 | 1973 | _setCS(true); |
wim | 32:59c4b8f648d4 | 1974 | |
wim | 21:9eb628d9e164 | 1975 | // Setup the spi for 8 bit data, low steady state clock, |
wim | 21:9eb628d9e164 | 1976 | // rising edge capture, with a 500KHz or 1MHz clock rate |
wim | 21:9eb628d9e164 | 1977 | _spi->format(8,0); |
wim | 21:9eb628d9e164 | 1978 | _spi->frequency(500000); |
wim | 21:9eb628d9e164 | 1979 | //_spi.frequency(1000000); |
wim | 21:9eb628d9e164 | 1980 | |
wim | 21:9eb628d9e164 | 1981 | // Init the portexpander bus |
wim | 21:9eb628d9e164 | 1982 | _lcd_bus = D_LCD_BUS_DEF; |
wim | 21:9eb628d9e164 | 1983 | |
wim | 21:9eb628d9e164 | 1984 | // write the new data to the portexpander |
wim | 21:9eb628d9e164 | 1985 | _setCS(false); |
wim | 21:9eb628d9e164 | 1986 | _spi->write(_lcd_bus); |
wim | 21:9eb628d9e164 | 1987 | _setCS(true); |
wim | 30:033048611c01 | 1988 | |
wim | 30:033048611c01 | 1989 | _init(); |
wim | 21:9eb628d9e164 | 1990 | } |
wim | 21:9eb628d9e164 | 1991 | |
wim | 21:9eb628d9e164 | 1992 | // Set E pin (or E2 pin) |
wim | 21:9eb628d9e164 | 1993 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 1994 | void TextLCD_SPI::_setEnable(bool value) { |
wim | 21:9eb628d9e164 | 1995 | |
wim | 22:35742ec80c24 | 1996 | if(_ctrl_idx==_LCDCtrl_0) { |
wim | 26:bd897a001012 | 1997 | if (value) { |
wim | 22:35742ec80c24 | 1998 | _lcd_bus |= D_LCD_E; // Set E bit |
wim | 26:bd897a001012 | 1999 | } |
wim | 26:bd897a001012 | 2000 | else { |
wim | 22:35742ec80c24 | 2001 | _lcd_bus &= ~D_LCD_E; // Reset E bit |
wim | 26:bd897a001012 | 2002 | } |
wim | 22:35742ec80c24 | 2003 | } |
wim | 22:35742ec80c24 | 2004 | else { |
wim | 26:bd897a001012 | 2005 | if (value) { |
wim | 22:35742ec80c24 | 2006 | _lcd_bus |= D_LCD_E2; // Set E2 bit |
wim | 26:bd897a001012 | 2007 | } |
wim | 26:bd897a001012 | 2008 | else { |
wim | 22:35742ec80c24 | 2009 | _lcd_bus &= ~D_LCD_E2; // Reset E2 bit |
wim | 26:bd897a001012 | 2010 | } |
wim | 22:35742ec80c24 | 2011 | } |
wim | 21:9eb628d9e164 | 2012 | |
wim | 22:35742ec80c24 | 2013 | // write the new data to the SPI portexpander |
wim | 22:35742ec80c24 | 2014 | _setCS(false); |
wim | 22:35742ec80c24 | 2015 | _spi->write(_lcd_bus); |
wim | 30:033048611c01 | 2016 | _setCS(true); |
wim | 21:9eb628d9e164 | 2017 | } |
wim | 21:9eb628d9e164 | 2018 | |
wim | 21:9eb628d9e164 | 2019 | // Set RS pin |
wim | 21:9eb628d9e164 | 2020 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 2021 | void TextLCD_SPI::_setRS(bool value) { |
wim | 21:9eb628d9e164 | 2022 | |
wim | 22:35742ec80c24 | 2023 | if (value) { |
wim | 21:9eb628d9e164 | 2024 | _lcd_bus |= D_LCD_RS; // Set RS bit |
wim | 22:35742ec80c24 | 2025 | } |
wim | 22:35742ec80c24 | 2026 | else { |
wim | 21:9eb628d9e164 | 2027 | _lcd_bus &= ~D_LCD_RS; // Reset RS bit |
wim | 22:35742ec80c24 | 2028 | } |
wim | 21:9eb628d9e164 | 2029 | |
wim | 21:9eb628d9e164 | 2030 | // write the new data to the SPI portexpander |
wim | 21:9eb628d9e164 | 2031 | _setCS(false); |
wim | 21:9eb628d9e164 | 2032 | _spi->write(_lcd_bus); |
wim | 21:9eb628d9e164 | 2033 | _setCS(true); |
wim | 21:9eb628d9e164 | 2034 | } |
wim | 21:9eb628d9e164 | 2035 | |
wim | 21:9eb628d9e164 | 2036 | // Set BL pin |
wim | 21:9eb628d9e164 | 2037 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 2038 | void TextLCD_SPI::_setBL(bool value) { |
wim | 21:9eb628d9e164 | 2039 | |
wim | 22:35742ec80c24 | 2040 | if (value) { |
wim | 21:9eb628d9e164 | 2041 | _lcd_bus |= D_LCD_BL; // Set BL bit |
wim | 22:35742ec80c24 | 2042 | } |
wim | 22:35742ec80c24 | 2043 | else { |
wim | 21:9eb628d9e164 | 2044 | _lcd_bus &= ~D_LCD_BL; // Reset BL bit |
wim | 22:35742ec80c24 | 2045 | } |
wim | 21:9eb628d9e164 | 2046 | |
wim | 21:9eb628d9e164 | 2047 | // write the new data to the SPI portexpander |
wim | 21:9eb628d9e164 | 2048 | _setCS(false); |
wim | 21:9eb628d9e164 | 2049 | _spi->write(_lcd_bus); |
wim | 30:033048611c01 | 2050 | _setCS(true); |
wim | 21:9eb628d9e164 | 2051 | } |
wim | 21:9eb628d9e164 | 2052 | |
wim | 21:9eb628d9e164 | 2053 | // Place the 4bit data on the databus |
wim | 21:9eb628d9e164 | 2054 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 21:9eb628d9e164 | 2055 | void TextLCD_SPI::_setData(int value) { |
wim | 21:9eb628d9e164 | 2056 | int data; |
wim | 21:9eb628d9e164 | 2057 | |
wim | 22:35742ec80c24 | 2058 | // Set bit by bit to support any mapping of expander portpins to LCD pins |
wim | 22:35742ec80c24 | 2059 | |
wim | 22:35742ec80c24 | 2060 | data = value & 0x0F; |
wim | 26:bd897a001012 | 2061 | if (data & 0x01) { |
wim | 22:35742ec80c24 | 2062 | _lcd_bus |= D_LCD_D4; // Set Databit |
wim | 26:bd897a001012 | 2063 | } |
wim | 26:bd897a001012 | 2064 | else { |
wim | 22:35742ec80c24 | 2065 | _lcd_bus &= ~D_LCD_D4; // Reset Databit |
wim | 26:bd897a001012 | 2066 | } |
wim | 26:bd897a001012 | 2067 | |
wim | 26:bd897a001012 | 2068 | if (data & 0x02) { |
wim | 22:35742ec80c24 | 2069 | _lcd_bus |= D_LCD_D5; // Set Databit |
wim | 26:bd897a001012 | 2070 | } |
wim | 26:bd897a001012 | 2071 | else { |
wim | 22:35742ec80c24 | 2072 | _lcd_bus &= ~D_LCD_D5; // Reset Databit |
wim | 26:bd897a001012 | 2073 | } |
wim | 26:bd897a001012 | 2074 | |
wim | 26:bd897a001012 | 2075 | if (data & 0x04) { |
wim | 22:35742ec80c24 | 2076 | _lcd_bus |= D_LCD_D6; // Set Databit |
wim | 26:bd897a001012 | 2077 | } |
wim | 26:bd897a001012 | 2078 | else { |
wim | 22:35742ec80c24 | 2079 | _lcd_bus &= ~D_LCD_D6; // Reset Databit |
wim | 26:bd897a001012 | 2080 | } |
wim | 26:bd897a001012 | 2081 | |
wim | 26:bd897a001012 | 2082 | if (data & 0x08) { |
wim | 22:35742ec80c24 | 2083 | _lcd_bus |= D_LCD_D7; // Set Databit |
wim | 26:bd897a001012 | 2084 | } |
wim | 26:bd897a001012 | 2085 | else { |
wim | 26:bd897a001012 | 2086 | _lcd_bus &= ~D_LCD_D7; // Reset Databit |
wim | 26:bd897a001012 | 2087 | } |
wim | 21:9eb628d9e164 | 2088 | |
wim | 22:35742ec80c24 | 2089 | // write the new data to the SPI portexpander |
wim | 22:35742ec80c24 | 2090 | _setCS(false); |
wim | 22:35742ec80c24 | 2091 | _spi->write(_lcd_bus); |
wim | 30:033048611c01 | 2092 | _setCS(true); |
wim | 21:9eb628d9e164 | 2093 | } |
wim | 21:9eb628d9e164 | 2094 | |
wim | 21:9eb628d9e164 | 2095 | // Set CS line. |
wim | 21:9eb628d9e164 | 2096 | // Only used for SPI bus |
wim | 21:9eb628d9e164 | 2097 | void TextLCD_SPI::_setCS(bool value) { |
wim | 21:9eb628d9e164 | 2098 | |
wim | 21:9eb628d9e164 | 2099 | if (value) { |
wim | 21:9eb628d9e164 | 2100 | _cs = 1; // Set CS pin |
wim | 21:9eb628d9e164 | 2101 | } |
wim | 22:35742ec80c24 | 2102 | else { |
wim | 21:9eb628d9e164 | 2103 | _cs = 0; // Reset CS pin |
wim | 22:35742ec80c24 | 2104 | } |
wim | 21:9eb628d9e164 | 2105 | } |
wim | 21:9eb628d9e164 | 2106 | |
wim | 23:d47f226efb24 | 2107 | //---------- End TextLCD_SPI ------------ |
wim | 22:35742ec80c24 | 2108 | |
wim | 22:35742ec80c24 | 2109 | |
wim | 25:6162b31128c9 | 2110 | //--------- Start TextLCD_SPI_N --------- |
Sissors | 24:fb3399713710 | 2111 | |
wim | 30:033048611c01 | 2112 | /** Create a TextLCD interface using a controller with a native SPI4 interface |
Sissors | 24:fb3399713710 | 2113 | * |
Sissors | 24:fb3399713710 | 2114 | * @param spi SPI Bus |
Sissors | 24:fb3399713710 | 2115 | * @param cs chip select pin (active low) |
wim | 25:6162b31128c9 | 2116 | * @param rs Instruction/data control line |
Sissors | 24:fb3399713710 | 2117 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 25:6162b31128c9 | 2118 | * @param bl Backlight control line (optional, default = NC) |
wim | 26:bd897a001012 | 2119 | * @param ctrl LCD controller (default = ST7032_3V3) |
wim | 25:6162b31128c9 | 2120 | */ |
wim | 25:6162b31128c9 | 2121 | TextLCD_SPI_N::TextLCD_SPI_N(SPI *spi, PinName cs, PinName rs, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 25:6162b31128c9 | 2122 | TextLCD_Base(type, ctrl), |
wim | 25:6162b31128c9 | 2123 | _spi(spi), |
wim | 25:6162b31128c9 | 2124 | _cs(cs), |
wim | 25:6162b31128c9 | 2125 | _rs(rs) { |
Sissors | 24:fb3399713710 | 2126 | |
wim | 32:59c4b8f648d4 | 2127 | // Init CS |
wim | 32:59c4b8f648d4 | 2128 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2129 | |
Sissors | 24:fb3399713710 | 2130 | // Setup the spi for 8 bit data, low steady state clock, |
Sissors | 24:fb3399713710 | 2131 | // rising edge capture, with a 500KHz or 1MHz clock rate |
Sissors | 24:fb3399713710 | 2132 | _spi->format(8,0); |
Sissors | 24:fb3399713710 | 2133 | _spi->frequency(1000000); |
Sissors | 24:fb3399713710 | 2134 | |
Sissors | 24:fb3399713710 | 2135 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
Sissors | 24:fb3399713710 | 2136 | if (bl != NC) { |
Sissors | 24:fb3399713710 | 2137 | _bl = new DigitalOut(bl); //Construct new pin |
Sissors | 24:fb3399713710 | 2138 | _bl->write(0); //Deactivate |
Sissors | 24:fb3399713710 | 2139 | } |
Sissors | 24:fb3399713710 | 2140 | else { |
Sissors | 24:fb3399713710 | 2141 | // No Hardware Backlight pin |
Sissors | 24:fb3399713710 | 2142 | _bl = NULL; //Construct dummy pin |
Sissors | 24:fb3399713710 | 2143 | } |
wim | 30:033048611c01 | 2144 | |
wim | 30:033048611c01 | 2145 | //Sanity check |
wim | 30:033048611c01 | 2146 | if (_ctrl & LCD_C_SPI4) { |
wim | 30:033048611c01 | 2147 | _init(); |
wim | 30:033048611c01 | 2148 | } |
wim | 30:033048611c01 | 2149 | else { |
wim | 30:033048611c01 | 2150 | error("Error: LCD Controller type does not support native SPI4 interface\n\r"); |
wim | 30:033048611c01 | 2151 | } |
Sissors | 24:fb3399713710 | 2152 | } |
Sissors | 24:fb3399713710 | 2153 | |
wim | 25:6162b31128c9 | 2154 | TextLCD_SPI_N::~TextLCD_SPI_N() { |
Sissors | 24:fb3399713710 | 2155 | if (_bl != NULL) {delete _bl;} // BL pin |
Sissors | 24:fb3399713710 | 2156 | } |
Sissors | 24:fb3399713710 | 2157 | |
Sissors | 24:fb3399713710 | 2158 | // Not used in this mode |
wim | 25:6162b31128c9 | 2159 | void TextLCD_SPI_N::_setEnable(bool value) { |
Sissors | 24:fb3399713710 | 2160 | } |
Sissors | 24:fb3399713710 | 2161 | |
Sissors | 24:fb3399713710 | 2162 | // Set RS pin |
Sissors | 24:fb3399713710 | 2163 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 25:6162b31128c9 | 2164 | void TextLCD_SPI_N::_setRS(bool value) { |
Sissors | 24:fb3399713710 | 2165 | _rs = value; |
Sissors | 24:fb3399713710 | 2166 | } |
Sissors | 24:fb3399713710 | 2167 | |
Sissors | 24:fb3399713710 | 2168 | // Set BL pin |
wim | 25:6162b31128c9 | 2169 | void TextLCD_SPI_N::_setBL(bool value) { |
wim | 26:bd897a001012 | 2170 | if (_bl) { |
Sissors | 24:fb3399713710 | 2171 | _bl->write(value); |
wim | 26:bd897a001012 | 2172 | } |
Sissors | 24:fb3399713710 | 2173 | } |
Sissors | 24:fb3399713710 | 2174 | |
wim | 29:a3663151aa65 | 2175 | // Not used in this mode |
wim | 29:a3663151aa65 | 2176 | void TextLCD_SPI_N::_setData(int value) { |
wim | 29:a3663151aa65 | 2177 | } |
wim | 29:a3663151aa65 | 2178 | |
Sissors | 24:fb3399713710 | 2179 | // Write a byte using SPI |
wim | 25:6162b31128c9 | 2180 | void TextLCD_SPI_N::_writeByte(int value) { |
Sissors | 24:fb3399713710 | 2181 | _cs = 0; |
Sissors | 24:fb3399713710 | 2182 | wait_us(1); |
Sissors | 24:fb3399713710 | 2183 | _spi->write(value); |
Sissors | 24:fb3399713710 | 2184 | wait_us(1); |
Sissors | 24:fb3399713710 | 2185 | _cs = 1; |
Sissors | 24:fb3399713710 | 2186 | } |
wim | 30:033048611c01 | 2187 | |
wim | 25:6162b31128c9 | 2188 | //-------- End TextLCD_SPI_N ------------ |
wim | 21:9eb628d9e164 | 2189 | |
wim | 21:9eb628d9e164 | 2190 | |
wim | 21:9eb628d9e164 | 2191 | |
wim | 32:59c4b8f648d4 | 2192 | #if(1) |
wim | 30:033048611c01 | 2193 | //Code checked out on logic analyser. Not yet tested on hardware.. |
wim | 30:033048611c01 | 2194 | |
wim | 30:033048611c01 | 2195 | //-------- Start TextLCD_SPI_N_3_9 -------- |
wim | 30:033048611c01 | 2196 | |
wim | 30:033048611c01 | 2197 | /** Create a TextLCD interface using a controller with a native SPI3 9 bits interface |
wim | 30:033048611c01 | 2198 | * |
wim | 30:033048611c01 | 2199 | * @param spi SPI Bus |
wim | 30:033048611c01 | 2200 | * @param cs chip select pin (active low) |
wim | 30:033048611c01 | 2201 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 30:033048611c01 | 2202 | * @param bl Backlight control line (optional, default = NC) |
wim | 30:033048611c01 | 2203 | * @param ctrl LCD controller (default = AIP31068) |
wim | 30:033048611c01 | 2204 | */ |
wim | 30:033048611c01 | 2205 | TextLCD_SPI_N_3_9::TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 30:033048611c01 | 2206 | TextLCD_Base(type, ctrl), |
wim | 30:033048611c01 | 2207 | _spi(spi), |
wim | 32:59c4b8f648d4 | 2208 | // _cs(cs) { |
wim | 32:59c4b8f648d4 | 2209 | |
wim | 32:59c4b8f648d4 | 2210 | _cs(cs), _ps(p20) { |
wim | 32:59c4b8f648d4 | 2211 | |
wim | 32:59c4b8f648d4 | 2212 | // Init PS |
wim | 32:59c4b8f648d4 | 2213 | wait_us(500); |
wim | 32:59c4b8f648d4 | 2214 | _ps = 0; |
wim | 32:59c4b8f648d4 | 2215 | wait_us(250); |
wim | 32:59c4b8f648d4 | 2216 | |
wim | 32:59c4b8f648d4 | 2217 | // Init CS |
wim | 32:59c4b8f648d4 | 2218 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2219 | |
wim | 30:033048611c01 | 2220 | // Setup the spi for 9 bit data, low steady state clock, |
wim | 30:033048611c01 | 2221 | // rising edge capture, with a 500KHz or 1MHz clock rate |
wim | 32:59c4b8f648d4 | 2222 | // _spi->format(9,0); |
wim | 32:59c4b8f648d4 | 2223 | _spi->format(9,3); |
wim | 30:033048611c01 | 2224 | _spi->frequency(1000000); |
wim | 30:033048611c01 | 2225 | |
wim | 30:033048611c01 | 2226 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 30:033048611c01 | 2227 | if (bl != NC) { |
wim | 30:033048611c01 | 2228 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 30:033048611c01 | 2229 | _bl->write(0); //Deactivate |
wim | 30:033048611c01 | 2230 | } |
wim | 30:033048611c01 | 2231 | else { |
wim | 30:033048611c01 | 2232 | // No Hardware Backlight pin |
wim | 30:033048611c01 | 2233 | _bl = NULL; //Construct dummy pin |
wim | 30:033048611c01 | 2234 | } |
wim | 30:033048611c01 | 2235 | |
wim | 30:033048611c01 | 2236 | //Sanity check |
wim | 30:033048611c01 | 2237 | if (_ctrl & LCD_C_SPI3_9) { |
wim | 30:033048611c01 | 2238 | _init(); |
wim | 30:033048611c01 | 2239 | } |
wim | 30:033048611c01 | 2240 | else { |
wim | 30:033048611c01 | 2241 | error("Error: LCD Controller type does not support native SPI3 9 bits interface\n\r"); |
wim | 30:033048611c01 | 2242 | } |
wim | 30:033048611c01 | 2243 | } |
wim | 30:033048611c01 | 2244 | |
wim | 30:033048611c01 | 2245 | TextLCD_SPI_N_3_9::~TextLCD_SPI_N_3_9() { |
wim | 30:033048611c01 | 2246 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 30:033048611c01 | 2247 | } |
wim | 30:033048611c01 | 2248 | |
wim | 30:033048611c01 | 2249 | // Not used in this mode |
wim | 30:033048611c01 | 2250 | void TextLCD_SPI_N_3_9::_setEnable(bool value) { |
wim | 30:033048611c01 | 2251 | } |
wim | 30:033048611c01 | 2252 | |
wim | 30:033048611c01 | 2253 | // Set RS pin |
wim | 30:033048611c01 | 2254 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 30:033048611c01 | 2255 | void TextLCD_SPI_N_3_9::_setRS(bool value) { |
wim | 30:033048611c01 | 2256 | // The controlbits define the meaning of the next byte. This next byte can either be data or command. |
wim | 30:033048611c01 | 2257 | // b8 b7...........b0 |
wim | 30:033048611c01 | 2258 | // RS command or data |
wim | 30:033048611c01 | 2259 | // |
wim | 30:033048611c01 | 2260 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 30:033048611c01 | 2261 | // |
wim | 30:033048611c01 | 2262 | |
wim | 30:033048611c01 | 2263 | if (value) { |
wim | 30:033048611c01 | 2264 | _controlbyte = 0x01; // Next byte is data |
wim | 30:033048611c01 | 2265 | } |
wim | 30:033048611c01 | 2266 | else { |
wim | 30:033048611c01 | 2267 | _controlbyte = 0x00; // Next byte is command |
wim | 30:033048611c01 | 2268 | } |
wim | 30:033048611c01 | 2269 | |
wim | 30:033048611c01 | 2270 | } |
wim | 30:033048611c01 | 2271 | |
wim | 30:033048611c01 | 2272 | // Set BL pin |
wim | 30:033048611c01 | 2273 | void TextLCD_SPI_N_3_9::_setBL(bool value) { |
wim | 30:033048611c01 | 2274 | if (_bl) { |
wim | 30:033048611c01 | 2275 | _bl->write(value); |
wim | 30:033048611c01 | 2276 | } |
wim | 30:033048611c01 | 2277 | } |
wim | 30:033048611c01 | 2278 | |
wim | 30:033048611c01 | 2279 | // Not used in this mode |
wim | 30:033048611c01 | 2280 | void TextLCD_SPI_N_3_9::_setData(int value) { |
wim | 30:033048611c01 | 2281 | } |
wim | 30:033048611c01 | 2282 | |
wim | 30:033048611c01 | 2283 | // Write a byte using SPI3 9 bits mode |
wim | 30:033048611c01 | 2284 | void TextLCD_SPI_N_3_9::_writeByte(int value) { |
wim | 30:033048611c01 | 2285 | _cs = 0; |
wim | 30:033048611c01 | 2286 | wait_us(1); |
wim | 30:033048611c01 | 2287 | _spi->write( (_controlbyte << 8) | (value & 0xFF)); |
wim | 30:033048611c01 | 2288 | wait_us(1); |
wim | 30:033048611c01 | 2289 | _cs = 1; |
wim | 30:033048611c01 | 2290 | } |
wim | 30:033048611c01 | 2291 | |
wim | 30:033048611c01 | 2292 | //------- End TextLCD_SPI_N_3_9 ----------- |
wim | 30:033048611c01 | 2293 | #endif |
wim | 21:9eb628d9e164 | 2294 | |
wim | 21:9eb628d9e164 | 2295 | |
wim | 32:59c4b8f648d4 | 2296 | #if(1) |
wim | 30:033048611c01 | 2297 | //------- Start TextLCD_SPI_N_3_10 -------- |
wim | 30:033048611c01 | 2298 | |
wim | 30:033048611c01 | 2299 | /** Create a TextLCD interface using a controller with a native SPI3 10 bits interface |
wim | 30:033048611c01 | 2300 | * |
wim | 30:033048611c01 | 2301 | * @param spi SPI Bus |
wim | 30:033048611c01 | 2302 | * @param cs chip select pin (active low) |
wim | 30:033048611c01 | 2303 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 30:033048611c01 | 2304 | * @param bl Backlight control line (optional, default = NC) |
wim | 30:033048611c01 | 2305 | * @param ctrl LCD controller (default = AIP31068) |
wim | 30:033048611c01 | 2306 | */ |
wim | 30:033048611c01 | 2307 | TextLCD_SPI_N_3_10::TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 30:033048611c01 | 2308 | TextLCD_Base(type, ctrl), |
wim | 30:033048611c01 | 2309 | _spi(spi), |
wim | 30:033048611c01 | 2310 | _cs(cs) { |
wim | 30:033048611c01 | 2311 | |
wim | 32:59c4b8f648d4 | 2312 | // Init CS |
wim | 32:59c4b8f648d4 | 2313 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2314 | |
wim | 30:033048611c01 | 2315 | // Setup the spi for 10 bit data, low steady state clock, |
wim | 30:033048611c01 | 2316 | // rising edge capture, with a 500KHz or 1MHz clock rate |
wim | 30:033048611c01 | 2317 | _spi->format(10,0); |
wim | 30:033048611c01 | 2318 | _spi->frequency(1000000); |
wim | 30:033048611c01 | 2319 | |
wim | 30:033048611c01 | 2320 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 30:033048611c01 | 2321 | if (bl != NC) { |
wim | 30:033048611c01 | 2322 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 30:033048611c01 | 2323 | _bl->write(0); //Deactivate |
wim | 30:033048611c01 | 2324 | } |
wim | 30:033048611c01 | 2325 | else { |
wim | 30:033048611c01 | 2326 | // No Hardware Backlight pin |
wim | 30:033048611c01 | 2327 | _bl = NULL; //Construct dummy pin |
wim | 30:033048611c01 | 2328 | } |
wim | 30:033048611c01 | 2329 | |
wim | 30:033048611c01 | 2330 | //Sanity check |
wim | 30:033048611c01 | 2331 | if (_ctrl & LCD_C_SPI3_10) { |
wim | 30:033048611c01 | 2332 | _init(); |
wim | 30:033048611c01 | 2333 | } |
wim | 30:033048611c01 | 2334 | else { |
wim | 30:033048611c01 | 2335 | error("Error: LCD Controller type does not support native SPI3 10 bits interface\n\r"); |
wim | 30:033048611c01 | 2336 | } |
wim | 30:033048611c01 | 2337 | } |
wim | 30:033048611c01 | 2338 | |
wim | 30:033048611c01 | 2339 | TextLCD_SPI_N_3_10::~TextLCD_SPI_N_3_10() { |
wim | 30:033048611c01 | 2340 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 30:033048611c01 | 2341 | } |
wim | 30:033048611c01 | 2342 | |
wim | 30:033048611c01 | 2343 | // Not used in this mode |
wim | 30:033048611c01 | 2344 | void TextLCD_SPI_N_3_10::_setEnable(bool value) { |
wim | 30:033048611c01 | 2345 | } |
wim | 30:033048611c01 | 2346 | |
wim | 30:033048611c01 | 2347 | // Set RS pin |
wim | 30:033048611c01 | 2348 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 30:033048611c01 | 2349 | void TextLCD_SPI_N_3_10::_setRS(bool value) { |
wim | 30:033048611c01 | 2350 | // The controlbits define the meaning of the next byte. This next byte can either be data or command. |
wim | 30:033048611c01 | 2351 | // b9 b8 b7...........b0 |
wim | 30:033048611c01 | 2352 | // RS RW command or data |
wim | 30:033048611c01 | 2353 | // |
wim | 30:033048611c01 | 2354 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 30:033048611c01 | 2355 | // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib) |
wim | 30:033048611c01 | 2356 | // |
wim | 30:033048611c01 | 2357 | |
wim | 30:033048611c01 | 2358 | if (value) { |
wim | 30:033048611c01 | 2359 | _controlbyte = 0x02; // Next byte is data |
wim | 30:033048611c01 | 2360 | } |
wim | 30:033048611c01 | 2361 | else { |
wim | 30:033048611c01 | 2362 | _controlbyte = 0x00; // Next byte is command |
wim | 30:033048611c01 | 2363 | } |
wim | 30:033048611c01 | 2364 | |
wim | 30:033048611c01 | 2365 | } |
wim | 30:033048611c01 | 2366 | |
wim | 30:033048611c01 | 2367 | // Set BL pin |
wim | 30:033048611c01 | 2368 | void TextLCD_SPI_N_3_10::_setBL(bool value) { |
wim | 30:033048611c01 | 2369 | if (_bl) { |
wim | 30:033048611c01 | 2370 | _bl->write(value); |
wim | 30:033048611c01 | 2371 | } |
wim | 30:033048611c01 | 2372 | } |
wim | 30:033048611c01 | 2373 | |
wim | 30:033048611c01 | 2374 | // Not used in this mode |
wim | 30:033048611c01 | 2375 | void TextLCD_SPI_N_3_10::_setData(int value) { |
wim | 30:033048611c01 | 2376 | } |
wim | 30:033048611c01 | 2377 | |
wim | 30:033048611c01 | 2378 | // Write a byte using SPI3 10 bits mode |
wim | 30:033048611c01 | 2379 | void TextLCD_SPI_N_3_10::_writeByte(int value) { |
wim | 30:033048611c01 | 2380 | _cs = 0; |
wim | 30:033048611c01 | 2381 | wait_us(1); |
wim | 30:033048611c01 | 2382 | _spi->write( (_controlbyte << 8) | (value & 0xFF)); |
wim | 30:033048611c01 | 2383 | wait_us(1); |
wim | 30:033048611c01 | 2384 | _cs = 1; |
wim | 30:033048611c01 | 2385 | } |
wim | 30:033048611c01 | 2386 | |
wim | 30:033048611c01 | 2387 | //------- End TextLCD_SPI_N_3_10 ---------- |
wim | 32:59c4b8f648d4 | 2388 | #endif |
wim | 32:59c4b8f648d4 | 2389 | |
wim | 32:59c4b8f648d4 | 2390 | #if(0) |
wim | 32:59c4b8f648d4 | 2391 | //Code to be checked out on logic analyser. Not yet tested on hardware.. |
wim | 32:59c4b8f648d4 | 2392 | |
wim | 32:59c4b8f648d4 | 2393 | //------- Start TextLCD_SPI_N_3_16 -------- |
wim | 32:59c4b8f648d4 | 2394 | |
wim | 32:59c4b8f648d4 | 2395 | /** Create a TextLCD interface using a controller with a native SPI3 16 bits interface |
wim | 32:59c4b8f648d4 | 2396 | * |
wim | 32:59c4b8f648d4 | 2397 | * @param spi SPI Bus |
wim | 32:59c4b8f648d4 | 2398 | * @param cs chip select pin (active low) |
wim | 32:59c4b8f648d4 | 2399 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 32:59c4b8f648d4 | 2400 | * @param bl Backlight control line (optional, default = NC) |
wim | 32:59c4b8f648d4 | 2401 | * @param ctrl LCD controller (default = PT6314) |
wim | 32:59c4b8f648d4 | 2402 | */ |
wim | 32:59c4b8f648d4 | 2403 | TextLCD_SPI_N_3_16::TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 32:59c4b8f648d4 | 2404 | TextLCD_Base(type, ctrl), |
wim | 32:59c4b8f648d4 | 2405 | _spi(spi), |
wim | 32:59c4b8f648d4 | 2406 | _cs(cs) { |
wim | 32:59c4b8f648d4 | 2407 | |
wim | 32:59c4b8f648d4 | 2408 | // Init CS |
wim | 32:59c4b8f648d4 | 2409 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2410 | |
wim | 32:59c4b8f648d4 | 2411 | // Setup the spi for 8 bit data, low steady state clock, |
wim | 32:59c4b8f648d4 | 2412 | // rising edge capture, with a 500KHz or 1MHz clock rate |
wim | 32:59c4b8f648d4 | 2413 | _spi->format(8,0); |
wim | 32:59c4b8f648d4 | 2414 | _spi->frequency(1000000); |
wim | 32:59c4b8f648d4 | 2415 | |
wim | 32:59c4b8f648d4 | 2416 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 32:59c4b8f648d4 | 2417 | if (bl != NC) { |
wim | 32:59c4b8f648d4 | 2418 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 32:59c4b8f648d4 | 2419 | _bl->write(0); //Deactivate |
wim | 32:59c4b8f648d4 | 2420 | } |
wim | 32:59c4b8f648d4 | 2421 | else { |
wim | 32:59c4b8f648d4 | 2422 | // No Hardware Backlight pin |
wim | 32:59c4b8f648d4 | 2423 | _bl = NULL; //Construct dummy pin |
wim | 32:59c4b8f648d4 | 2424 | } |
wim | 32:59c4b8f648d4 | 2425 | |
wim | 32:59c4b8f648d4 | 2426 | //Sanity check |
wim | 32:59c4b8f648d4 | 2427 | if (_ctrl & LCD_C_SPI3_16) { |
wim | 32:59c4b8f648d4 | 2428 | _init(); |
wim | 32:59c4b8f648d4 | 2429 | } |
wim | 32:59c4b8f648d4 | 2430 | else { |
wim | 32:59c4b8f648d4 | 2431 | error("Error: LCD Controller type does not support native SPI3 16 bits interface\n\r"); |
wim | 32:59c4b8f648d4 | 2432 | } |
wim | 32:59c4b8f648d4 | 2433 | } |
wim | 32:59c4b8f648d4 | 2434 | |
wim | 32:59c4b8f648d4 | 2435 | TextLCD_SPI_N_3_16::~TextLCD_SPI_N_3_16() { |
wim | 32:59c4b8f648d4 | 2436 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 32:59c4b8f648d4 | 2437 | } |
wim | 32:59c4b8f648d4 | 2438 | |
wim | 32:59c4b8f648d4 | 2439 | // Not used in this mode |
wim | 32:59c4b8f648d4 | 2440 | void TextLCD_SPI_N_3_16::_setEnable(bool value) { |
wim | 32:59c4b8f648d4 | 2441 | } |
wim | 32:59c4b8f648d4 | 2442 | |
wim | 32:59c4b8f648d4 | 2443 | // Set RS pin |
wim | 32:59c4b8f648d4 | 2444 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 32:59c4b8f648d4 | 2445 | void TextLCD_SPI_N_3_16::_setRS(bool value) { |
wim | 32:59c4b8f648d4 | 2446 | // 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 | 2447 | // The 8 actual bits represent either a data or a command byte. |
wim | 32:59c4b8f648d4 | 2448 | // b15 b14 b13 b12 b11 b10 b9 b8 - b7 b6 b5 b4 b3 b2 b1 b0 |
wim | 32:59c4b8f648d4 | 2449 | // 1 1 1 1 1 RW RS 0 d7 d6 d5 d4 d3 d2 d1 d0 |
wim | 32:59c4b8f648d4 | 2450 | // |
wim | 32:59c4b8f648d4 | 2451 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 32:59c4b8f648d4 | 2452 | // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib) |
wim | 32:59c4b8f648d4 | 2453 | // |
wim | 32:59c4b8f648d4 | 2454 | |
wim | 32:59c4b8f648d4 | 2455 | if (value) { |
wim | 32:59c4b8f648d4 | 2456 | _controlbyte = 0xFA; // Next byte is data |
wim | 32:59c4b8f648d4 | 2457 | } |
wim | 32:59c4b8f648d4 | 2458 | else { |
wim | 32:59c4b8f648d4 | 2459 | _controlbyte = 0xF8; // Next byte is command |
wim | 32:59c4b8f648d4 | 2460 | } |
wim | 32:59c4b8f648d4 | 2461 | } |
wim | 32:59c4b8f648d4 | 2462 | |
wim | 32:59c4b8f648d4 | 2463 | // Set BL pin |
wim | 32:59c4b8f648d4 | 2464 | void TextLCD_SPI_N_3_16::_setBL(bool value) { |
wim | 32:59c4b8f648d4 | 2465 | if (_bl) { |
wim | 32:59c4b8f648d4 | 2466 | _bl->write(value); |
wim | 32:59c4b8f648d4 | 2467 | } |
wim | 32:59c4b8f648d4 | 2468 | } |
wim | 32:59c4b8f648d4 | 2469 | |
wim | 32:59c4b8f648d4 | 2470 | // Not used in this mode |
wim | 32:59c4b8f648d4 | 2471 | void TextLCD_SPI_N_3_16::_setData(int value) { |
wim | 32:59c4b8f648d4 | 2472 | } |
wim | 32:59c4b8f648d4 | 2473 | |
wim | 32:59c4b8f648d4 | 2474 | |
wim | 32:59c4b8f648d4 | 2475 | // Write a byte using SPI3 16 bits mode |
wim | 32:59c4b8f648d4 | 2476 | void TextLCD_SPI_N_3_16::_writeByte(int value) { |
wim | 32:59c4b8f648d4 | 2477 | _cs = 0; |
wim | 32:59c4b8f648d4 | 2478 | wait_us(1); |
wim | 32:59c4b8f648d4 | 2479 | |
wim | 32:59c4b8f648d4 | 2480 | _spi->write(_controlbyte); |
wim | 32:59c4b8f648d4 | 2481 | |
wim | 32:59c4b8f648d4 | 2482 | _spi->write(value); |
wim | 32:59c4b8f648d4 | 2483 | |
wim | 32:59c4b8f648d4 | 2484 | wait_us(1); |
wim | 32:59c4b8f648d4 | 2485 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2486 | } |
wim | 32:59c4b8f648d4 | 2487 | |
wim | 32:59c4b8f648d4 | 2488 | //------- End TextLCD_SPI_N_3_16 ---------- |
wim | 32:59c4b8f648d4 | 2489 | #endif |
wim | 32:59c4b8f648d4 | 2490 | |
wim | 32:59c4b8f648d4 | 2491 | #if(1) |
wim | 32:59c4b8f648d4 | 2492 | //Code to be checked out on logic analyser. Not yet tested on hardware.. |
wim | 32:59c4b8f648d4 | 2493 | |
wim | 32:59c4b8f648d4 | 2494 | //------- Start TextLCD_SPI_N_3_24 -------- |
wim | 32:59c4b8f648d4 | 2495 | |
wim | 32:59c4b8f648d4 | 2496 | /** Create a TextLCD interface using a controller with a native SPI3 24 bits interface |
wim | 32:59c4b8f648d4 | 2497 | * |
wim | 32:59c4b8f648d4 | 2498 | * @param spi SPI Bus |
wim | 32:59c4b8f648d4 | 2499 | * @param cs chip select pin (active low) |
wim | 32:59c4b8f648d4 | 2500 | * @param type Sets the panel size/addressing mode (default = LCD16x2) |
wim | 32:59c4b8f648d4 | 2501 | * @param bl Backlight control line (optional, default = NC) |
wim | 32:59c4b8f648d4 | 2502 | * @param ctrl LCD controller (default = SSD1803) |
wim | 32:59c4b8f648d4 | 2503 | */ |
wim | 32:59c4b8f648d4 | 2504 | TextLCD_SPI_N_3_24::TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) : |
wim | 32:59c4b8f648d4 | 2505 | TextLCD_Base(type, ctrl), |
wim | 32:59c4b8f648d4 | 2506 | _spi(spi), |
wim | 32:59c4b8f648d4 | 2507 | _cs(cs) { |
wim | 32:59c4b8f648d4 | 2508 | |
wim | 32:59c4b8f648d4 | 2509 | // Init CS |
wim | 32:59c4b8f648d4 | 2510 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2511 | |
wim | 32:59c4b8f648d4 | 2512 | // Setup the spi for 8 bit data, low steady state clock, |
wim | 32:59c4b8f648d4 | 2513 | // rising edge capture, with a 500KHz or 1MHz clock rate |
wim | 32:59c4b8f648d4 | 2514 | _spi->format(8,0); |
wim | 32:59c4b8f648d4 | 2515 | _spi->frequency(1000000); |
wim | 32:59c4b8f648d4 | 2516 | |
wim | 32:59c4b8f648d4 | 2517 | // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access. |
wim | 32:59c4b8f648d4 | 2518 | if (bl != NC) { |
wim | 32:59c4b8f648d4 | 2519 | _bl = new DigitalOut(bl); //Construct new pin |
wim | 32:59c4b8f648d4 | 2520 | _bl->write(0); //Deactivate |
wim | 32:59c4b8f648d4 | 2521 | } |
wim | 32:59c4b8f648d4 | 2522 | else { |
wim | 32:59c4b8f648d4 | 2523 | // No Hardware Backlight pin |
wim | 32:59c4b8f648d4 | 2524 | _bl = NULL; //Construct dummy pin |
wim | 32:59c4b8f648d4 | 2525 | } |
wim | 32:59c4b8f648d4 | 2526 | |
wim | 32:59c4b8f648d4 | 2527 | //Sanity check |
wim | 32:59c4b8f648d4 | 2528 | if (_ctrl & LCD_C_SPI3_24) { |
wim | 32:59c4b8f648d4 | 2529 | _init(); |
wim | 32:59c4b8f648d4 | 2530 | } |
wim | 32:59c4b8f648d4 | 2531 | else { |
wim | 32:59c4b8f648d4 | 2532 | error("Error: LCD Controller type does not support native SPI3 24 bits interface\n\r"); |
wim | 32:59c4b8f648d4 | 2533 | } |
wim | 32:59c4b8f648d4 | 2534 | } |
wim | 32:59c4b8f648d4 | 2535 | |
wim | 32:59c4b8f648d4 | 2536 | TextLCD_SPI_N_3_24::~TextLCD_SPI_N_3_24() { |
wim | 32:59c4b8f648d4 | 2537 | if (_bl != NULL) {delete _bl;} // BL pin |
wim | 32:59c4b8f648d4 | 2538 | } |
wim | 32:59c4b8f648d4 | 2539 | |
wim | 32:59c4b8f648d4 | 2540 | // Not used in this mode |
wim | 32:59c4b8f648d4 | 2541 | void TextLCD_SPI_N_3_24::_setEnable(bool value) { |
wim | 32:59c4b8f648d4 | 2542 | } |
wim | 32:59c4b8f648d4 | 2543 | |
wim | 32:59c4b8f648d4 | 2544 | // Set RS pin |
wim | 32:59c4b8f648d4 | 2545 | // Used for mbed pins, I2C bus expander or SPI shiftregister |
wim | 32:59c4b8f648d4 | 2546 | void TextLCD_SPI_N_3_24::_setRS(bool value) { |
wim | 32:59c4b8f648d4 | 2547 | // 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 | 2548 | // Each byte encodes 4 actual bits. The 8 actual bits represent either a data or a command byte. |
wim | 32:59c4b8f648d4 | 2549 | // 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 | 2550 | // 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 | 2551 | // |
wim | 32:59c4b8f648d4 | 2552 | // RS=1 means that next byte is data, RS=0 means that next byte is command |
wim | 32:59c4b8f648d4 | 2553 | // RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib) |
wim | 32:59c4b8f648d4 | 2554 | // |
wim | 32:59c4b8f648d4 | 2555 | // Note: SPI3_24 expects LSB first. This is inconsistent with regular SPI convention (and hardware) that sends MSB first. |
wim | 32:59c4b8f648d4 | 2556 | |
wim | 32:59c4b8f648d4 | 2557 | if (value) { |
wim | 32:59c4b8f648d4 | 2558 | _controlbyte = 0xFA; // Next byte is data |
wim | 32:59c4b8f648d4 | 2559 | } |
wim | 32:59c4b8f648d4 | 2560 | else { |
wim | 32:59c4b8f648d4 | 2561 | _controlbyte = 0xF8; // Next byte is command |
wim | 32:59c4b8f648d4 | 2562 | } |
wim | 32:59c4b8f648d4 | 2563 | |
wim | 32:59c4b8f648d4 | 2564 | } |
wim | 32:59c4b8f648d4 | 2565 | |
wim | 32:59c4b8f648d4 | 2566 | // Set BL pin |
wim | 32:59c4b8f648d4 | 2567 | void TextLCD_SPI_N_3_24::_setBL(bool value) { |
wim | 32:59c4b8f648d4 | 2568 | if (_bl) { |
wim | 32:59c4b8f648d4 | 2569 | _bl->write(value); |
wim | 32:59c4b8f648d4 | 2570 | } |
wim | 32:59c4b8f648d4 | 2571 | } |
wim | 32:59c4b8f648d4 | 2572 | |
wim | 32:59c4b8f648d4 | 2573 | // Not used in this mode |
wim | 32:59c4b8f648d4 | 2574 | void TextLCD_SPI_N_3_24::_setData(int value) { |
wim | 32:59c4b8f648d4 | 2575 | } |
wim | 32:59c4b8f648d4 | 2576 | |
wim | 32:59c4b8f648d4 | 2577 | //Mapping table to flip the bits around cause SPI3_24 expects LSB first. |
wim | 32:59c4b8f648d4 | 2578 | 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 | 2579 | |
wim | 32:59c4b8f648d4 | 2580 | // Write a byte using SPI3 24 bits mode |
wim | 32:59c4b8f648d4 | 2581 | void TextLCD_SPI_N_3_24::_writeByte(int value) { |
wim | 32:59c4b8f648d4 | 2582 | _cs = 0; |
wim | 32:59c4b8f648d4 | 2583 | wait_us(1); |
wim | 32:59c4b8f648d4 | 2584 | _spi->write(_controlbyte); |
wim | 32:59c4b8f648d4 | 2585 | |
wim | 32:59c4b8f648d4 | 2586 | //Map and send the LSB nibble |
wim | 32:59c4b8f648d4 | 2587 | _spi->write( map3_24[value & 0x0F]); |
wim | 32:59c4b8f648d4 | 2588 | |
wim | 32:59c4b8f648d4 | 2589 | //Map and send the MSB nibble |
wim | 32:59c4b8f648d4 | 2590 | _spi->write( map3_24[(value >> 4) & 0x0F]); |
wim | 32:59c4b8f648d4 | 2591 | |
wim | 32:59c4b8f648d4 | 2592 | wait_us(1); |
wim | 32:59c4b8f648d4 | 2593 | _cs = 1; |
wim | 32:59c4b8f648d4 | 2594 | } |
wim | 32:59c4b8f648d4 | 2595 | |
wim | 32:59c4b8f648d4 | 2596 | //------- End TextLCD_SPI_N_3_24 ---------- |
wim | 30:033048611c01 | 2597 | #endif |