Kenji Arai
In TextLCD_I2C_N Class, added void setContrast(unsigned char c) function as temporary. This is for ST7032i non-volume type contrast control.
Dependents: LPC1114_data_logger RTC_w_COM Frequency_Counter_w_GPS_1PPS CW_Decoder_using_FFT_on_F446 ... more
Fork of
TextLCD
by 
Wim Huiskamp
In TextLCD_I2C_N Class, added void setContrast(unsigned char c) function as temporary.
Diff: TextLCD.cpp
- Revision:
- 30:4c57a022a56c
- Parent:
- 29:986538f94abe
--- a/TextLCD.cpp Sun Jun 15 03:22:32 2014 +0000
+++ b/TextLCD.cpp Mon Feb 24 10:47:12 2020 +0000
@@ -1,4 +1,4 @@
-/* mbed TextLCD Library, for a 4-bit LCD based on HD44780
+/* mbed TextLCD Library, for LCDs based on HD44780 controllers
* Copyright (c) 2007-2010, sford, http://mbed.org
* 2013, v01: WH, Added LCD types, fixed LCD address issues, added Cursor and UDCs
* 2013, v02: WH, Added I2C and SPI bus interfaces
@@ -9,8 +9,21 @@
* 2013, v07: WH, Added support for backlight and include portdefinitions for LCD2004 Module from DFROBOT
* 2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined pins
* 2014, v09: WH/EO, Added Class for Native SPI controllers such as ST7032
- * 2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module
- * 2014, v11: SW, added setContrast function for ST7032i only by JH1PJL
+ * 2014, v10: WH, Added Class for Native I2C controllers such as ST7032i, Added support for MCP23008 I2C portexpander, Added support for Adafruit module
+ * 2014, v11: WH, Added support for native I2C controllers such as PCF21XX, Improved the _initCtrl() method to deal with differences between all supported controllers
+ * 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)
+ * 2014, v13: WH, Added support for controllers US2066/SSD1311 (OLED), added setUDCBlink() method for supported devices (eg SSD1803), fixed issue in setPower()
+ * 2014, v14: WH, Added support for PT6314 (VFD), added setOrient() method for supported devices (eg SSD1803, US2066), added Double Height lines for supported devices,
+ * added 16 UDCs for supported devices (eg PCF2103), moved UDC defines to TextLCD_UDC file, added TextLCD_Config.h for feature and footprint settings.
+ * 2014, v15: WH, Added AC780 support, added I2C expander modules, fixed setBacklight() for inverted logic modules. Fixed bug in LCD_SPI_N define
+ * 2014, v16: WH, Added ST7070 and KS0073 support, added setIcon(), clrIcon() and setInvert() method for supported devices
+ * 2015, v17: WH, Clean up low-level _writeCommand() and _writeData(), Added support for alternative fonttables (eg PCF21XX), Added ST7066_ACM controller for ACM1602 module
+ * 2015, v18: WH, Performance improvement I2C portexpander
+ * 2015, v19: WH, Fixed Adafruit I2C/SPI portexpander pinmappings, fixed SYDZ Backlight
+ * 2015, v20: WH, Fixed occasional Init fail caused by insufficient wait time after ReturnHome command (0x02), Added defines to reduce memory footprint (eg LCD_ICON),
+ * Fixed and Added more fonttable support for PCF2119R_3V3, Added HD66712 controller.
+ * 2015, v21: WH, Added LCD32x2 defines and code, Fixed KS0073 DL=1 init for SPI, Added defines to reduce memory footprint (LCD_TWO_CTRL, LCD_CONTRAST, LCD_UTF8_FONT)
+ * Added SPLC792A controller, Added UTF8_2_LCD decode for Cyrilic font (By Andriy Ribalko). Added setFont()
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -30,230 +43,1448 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-
+#include "mbed.h"
#include "TextLCD.h"
-#include "mbed.h"
-
+#include "TextLCD_UDC.inc"
+#include "TextLCD_UTF8.inc"
+
/** Create a TextLCD_Base interface
*
* @param type Sets the panel size/addressing mode (default = LCD16x2)
* @param ctrl LCD controller (default = HD44780)
*/
TextLCD_Base::TextLCD_Base(LCDType type, LCDCtrl ctrl) : _type(type), _ctrl(ctrl) {
+
+ // Extract LCDType data
+
+ // Columns encoded in b15..b8
+ _nr_cols = (_type & LCD_T_COL_MSK) >> LCD_T_COL_SHFT;
+
+ // Rows encoded in b23..b16
+ _nr_rows = (_type & LCD_T_ROW_MSK) >> LCD_T_ROW_SHFT;
+
+ // Addressing mode encoded in b27..b24
+ _addr_mode = _type & LCD_T_ADR_MSK;
+
+ // Font table, encoded in LCDCtrl
+ _font = _ctrl & LCD_C_FNT_MSK;
}
-
/** Init the LCD Controller(s)
* Clear display
+ * @param _LCDDatalength dl sets the datalength of data/commands
+ * @return none
*/
-void TextLCD_Base::_init() {
+void TextLCD_Base::_init(_LCDDatalength dl) {
+
+ WAIT_MS(100); // Wait 100ms to ensure powered up
+#if (LCD_TWO_CTRL == 1)
// Select and configure second LCD controller when needed
if(_type==LCD40x4) {
- _ctrl_idx=_LCDCtrl_1; // Select 2nd controller
-
- _initCtrl(); // Init 2nd controller
-
+ _ctrl_idx=_LCDCtrl_1; // Select 2nd controller
+ _initCtrl(dl); // Init 2nd controller
}
+#endif
// Select and configure primary LCD controller
_ctrl_idx=_LCDCtrl_0; // Select primary controller
-
- _initCtrl(); // Init primary controller
-
- // Reset Cursor location
- _row=0;
- _column=0;
+ _initCtrl(dl); // Init primary controller
+
+ // Clear whole display and Reset Cursor location
+ // Note: This will make sure that some 3-line displays that skip topline of a 4-line configuration
+ // are cleared and init cursor correctly.
+ cls();
}
/** Init the LCD controller
- * 4-bit mode, number of lines, fonttype, no cursor etc
- *
+ * Set number of lines, fonttype, no cursor etc
+ * The controller is accessed in 4-bit parallel mode either directly via mbed pins or through I2C or SPI expander.
+ * Some controllers also support native I2C or SPI interfaces.
+ *
+ * @param _LCDDatalength dl sets the 4 or 8 bit datalength of data/commands. Required for some native serial modes that dont work when DL=0.
+ * @return none
+ *
+ * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
*/
-void TextLCD_Base::_initCtrl() {
+void TextLCD_Base::_initCtrl(_LCDDatalength dl) {
+ int _bias_lines=0; // Set Bias and lines (Instr Set 1), temporary variable.
+ int _lines=0; // Set lines (Ext Instr Set), temporary variable.
this->_setRS(false); // command mode
+
+ if (dl == _LCD_DL_4) {
+ // The Controller could be in 8 bit mode (power-on reset) or in 4 bit mode (warm reboot) at this point.
+ // Follow this procedure to make sure the Controller enters the correct state. The hardware interface
+ // between the uP and the LCD can only write the 4 most significant bits (Most Significant Nibble, MSN).
+ // In 4 bit mode the LCD expects the MSN first, followed by the LSN.
+ //
+ // Current state: 8 bit mode | 4 bit mode, MSN is next | 4 bit mode, LSN is next
+ //-------------------------------------------------------------------------------------------------
+ _writeNibble(0x3); // set 8 bit mode (MSN) and dummy LSN, | set 8 bit mode (MSN), | set dummy LSN,
+ // remains in 8 bit mode | remains in 4 bit mode | remains in 4 bit mode
+ WAIT_MS(15); //
+
+ _writeNibble(0x3); // set 8 bit mode (MSN) and dummy LSN, | set dummy LSN, | set 8bit mode (MSN),
+ // remains in 8 bit mode | change to 8 bit mode | remains in 4 bit mode
+ WAIT_MS(15); //
- wait_ms(20); // Wait 20ms to ensure powered up
-
- // send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus)
- for (int i=0; i<3; i++) {
- _writeNibble(0x3);
- wait_ms(15); // This command takes 1.64ms, so wait for it
+ _writeNibble(0x3); // set 8 bit mode (MSN) and dummy LSN, | set 8 bit mode (MSN) and dummy LSN, | set dummy LSN,
+ // remains in 8 bit mode | remains in 8 bit mode | change to 8 bit mode
+ WAIT_MS(15); //
+
+ // Controller is now in 8 bit mode
+
+ _writeNibble(0x2); // Change to 4-bit mode (MSN), the LSN is undefined dummy
+ wait_us(40); // most instructions take 40us
+
+ // Controller is now in 4-bit mode
+ // Note: 4/8 bit mode is ignored for most native SPI and I2C devices. They dont use the parallel bus.
+ // However, _writeNibble() method is void anyway for native SPI and I2C devices.
}
- _writeNibble(0x2); // 4-bit mode
- wait_us(40); // most instructions take 40us
-
- // Display is now in 4-bit mode
- // Note: 4 bit mode is ignored for native SPI and I2C devices
+ else {
+ // Reset in 8 bit mode, final Function set will follow
+ _writeCommand(0x30); // Function set 0 0 1 DL=1 N F x x
+ WAIT_MS(1); // most instructions take 40us
+ }
- // Device specific initialisations for DC/DC converter to generate VLCD or VLED
+ // Device specific initialisations: DC/DC converter to generate VLCD or VLED, number of lines etc
switch (_ctrl) {
- case ST7036:
- // ST7036 controller: Initialise Voltage booster for VLCD. VDD=5V
- // Note: supports 1,2 or 3 lines
- _writeCommand(0x29); // 4-bit Databus, 2 Lines, Select Instruction Set = 1
- wait_ms(30); // > 26,3ms
- _writeCommand(0x14); // Bias: 1/5, 2-Lines LCD
-// _writeCommand(0x15); // Bias: 1/5, 3-Lines LCD
- wait_ms(30); // > 26,3ms
- _writeCommand(0x55); // Icon off, Booster on, Set Contrast C5, C4
- wait_ms(30); // > 26,3ms
- _writeCommand(0x6D); // Voltagefollower On, Ampl ratio Rab2, Rab1, Rab0
- wait_ms(200); // > 200ms!
- _writeCommand(0x78); // Set Contrast C3, C2, C1, C0
- wait_ms(30); // > 26,3ms
- _writeCommand(0x28); // Return to Instruction Set = 0
- wait_ms(50);
- break;
-
+
+ case KS0073:
+ // Initialise Display configuration
+ switch (_type) {
+// case LCD6x1:
+ case LCD8x1: //8x1 is a regular 1 line display
+// case LCD8x2B: //8x1 is a 16x1 line display
+ case LCD12x1:
+ case LCD16x1:
+ case LCD20x1:
+ case LCD24x1:
+// case LCD32x1: // EXT pin is High, extension driver needed
+// case LCD40x1: // EXT pin is High, extension driver needed
+// case LCD52x1: // EXT pin is High, extension driver needed
+ _function = dl | 0x02; // Set function, 0 0 1 DL, N, RE(0), DH, REV
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=0 (1-line mode), N=1 (2-line mode), dont care for 4 line mode
+ // RE=0 (Dis. Extended Regs, special mode for KS0073)
+ // DH=1 (Disp shift enable, special mode for KS0073)
+ // REV=0 (Reverse normal, special mode for KS0073)
+
+ _function_1 = dl | 0x04; // Set function, 0 0 1 DL, N, RE(1), BE, LP (Ext Regs)
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=0 (1-line mode), N=1 (2-line mode), dont care for 4 line mode
+ // RE=1 (Ena Extended Regs, special mode for KS0073)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
+ break;
+
+// case LCD12x3D: // Special mode for KS0073, KS0078 and PCF21XX
+// case LCD12x3D1: // Special mode for KS0073, KS0078 and PCF21XX
+ case LCD12x4D: // Special mode for KS0073, KS0078 and PCF21XX
+// case LCD16x3D: // Special mode for KS0073, KS0078
+// case LCD16x3D1: // Special mode for KS0073, KS0078
+// case LCD16x4D: // Special mode for KS0073, KS0078
+ case LCD20x4D: // Special mode for KS0073, KS0078
+ _function = dl | 0x02; // Set function, 0 0 1 DL, N, RE(0), DH, REV
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=0 (1-line mode), N=1 (2-line mode), dont care for 4 line mode
+ // RE=0 (Dis. Extended Regs, special mode for KS0073)
+ // DH=1 (Disp shift enable, special mode for KS0073)
+ // REV=0 (Reverse normal, special mode for KS0073)
+
+ _function_1 = dl | 0x04; // Set function, 0 0 1 DL, N, RE(1), BE, LP (Ext Regs)
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=0 (1-line mode), N=1 (2-line mode), dont care for 4 line mode
+ // RE=1 (Ena Extended Regs, special mode for KS0073)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
+ break;
+
+// case LCD6x2:
+ case LCD8x2:
+ case LCD16x2:
+// case LCD16x1C:
+ case LCD20x2:
+ case LCD24x2:
+ case LCD32x2:
+ // All other LCD types are initialised as 2 Line displays
+ _function = dl | 0x0A; // Set function, 0 0 1 DL, N, RE(0), DH, REV
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=1 (2-line mode), N=0 (1-line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0073)
+ // DH=1 (Disp shift enable, special mode for KS0073)
+ // REV=0 (Reverse normal, special mode for KS0073)
+
+ _function_1 = dl | 0x0C; // Set function, 0 0 1 DL, N, RE(1), BE, LP (Ext Regs)
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // DL=1 (8 bits bus), DL=0 (4 bits bus)
+ // N=1 (2 line mode), N=0 (1-line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0073)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073)
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+ } // switch type
+
+ // init special features
+ _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE LP (Ext Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0073)
+ // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for KS0073)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // FW=0 (5-dot font, special mode for KS0073)
+ // BW=0 (Cur BW invert disable, special mode for KS0073)
+ // NW=0 (1,2 Line), NW=1 (4 line, special mode for KS0073)
+
+ _writeCommand(0x10); // Scroll/Shift set 0001 DS/HS4 DS/HS3 DS/HS2 DS/HS1 (Ext Regs)
+ // Dotscroll/Display shift enable (Special mode for KS0073)
+
+ _writeCommand(0x80); // Scroll Quantity set 1 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 (Ext Regs)
+ // Scroll quantity (Special mode for KS0073)
+
+ _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0073)
+ // DH=1 (Disp shift enable/disable, special mode for KS0073)
+ // REV=0 (Reverse/Normal, special mode for KS0073)
+ break; // case KS0073 Controller
+
+
+ case KS0078:
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+// case LCD20x1:
+ case LCD24x1:
+ _function = dl | 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0078)
+ // DH=1 (Disp shift enable, special mode for KS0078)
+ // REV=0 (Reverse normal, special mode for KS0078)
+
+ _function_1 = dl | 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0078)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
+ // 0
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
+ break;
+
+// case LCD12x3D: // Special mode for KS0073, KS0078 and PCF21XX
+// case LCD12x3D1: // Special mode for KS0073, KS0078 and PCF21XX
+// case LCD12x4D: // Special mode for KS0073, KS0078 and PCF21XX
+// case LCD16x3D: // Special mode for KS0073, KS0078
+// case LCD16x4D: // Special mode for KS0073, KS0078
+// case LCD20x4D: // Special mode for KS0073, KS0078
+// case LCD24x3D: // Special mode for KS0078
+// case LCD24x3D1: // Special mode for KS0078
+ case LCD24x4D: // Special mode for KS0078
+ _function = dl | 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (dont care for 4 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0078)
+ // DH=1 (Disp shift enable, special mode for KS0078)
+ // REV=0 (Reverse normal, special mode for KS0078)
+
+ _function_1 = dl | 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0078)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
+ // 0
+
+ _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
+ break;
+
+// case LCD6x2:
+ case LCD8x2:
+ case LCD16x2:
+// case LCD16x1C:
+ case LCD20x2:
+ case LCD24x2:
+ case LCD32x2:
+ case LCD40x2:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _function = dl | 0x0A; // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=1 (1 line mode), N=1 (2 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0078)
+ // DH=1 (Disp shift enable, special mode for KS0078)
+ // REV=0 (Reverse normal, special mode for KS0078)
+
+ _function_1 = dl | 0x0C; // Function set 001 DL N RE(1) BE 0 (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=1 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0078)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0078)
+ // 0
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078)
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+ } // switch type
+
+ // init special features
+ _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE 0 (Ext Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for KS0078)
+ // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for KS0078)
+ // 0
+
+ _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // FW=0 (5-dot font, special mode for KS0078)
+ // BW=0 (Cur BW invert disable, special mode for KS0078)
+ // NW=0 (1,2 Line), NW=1 (4 line, special mode for KS0078)
+
+ _writeCommand(0x10); // Scroll/Shift set 0001 DS/HS4 DS/HS3 DS/HS2 DS/HS1 (Ext Regs)
+ // Dotscroll/Display shift enable (Special mode for KS0078)
+
+ _writeCommand(0x80); // Scroll Quantity set 1 0 SQ5 SQ4 SQ3 SQ2 SQ1 SQ0 (Ext Regs)
+ // Scroll quantity (Special mode for KS0078)
+
+ _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for KS0078)
+ // DH=1 (Disp shift enable/disable, special mode for KS0078)
+ // REV=0 (Reverse/Normal, special mode for KS0078)
+ break; // case KS0078 Controller
+
case ST7032_3V3:
// ST7032 controller: Initialise Voltage booster for VLCD. VDD=3V3
-
-// _writeCommand(0x39); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot, Select Instruction Set = 1
- _writeCommand(0x29); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Select Instruction Set = 1
- //Note: 4 bit mode is ignored for native SPI and I2C devices
-
- _writeCommand(0x1C); //Internal OSC frequency adjustment Framefreq=183HZ, bias will be 1/4
-
- _writeCommand(0x70); //Contrast control low byte
-
- _writeCommand(0x57); //booster circuit is turned on. /ICON display off. /Contrast control high byte
- wait_ms(10); // Wait 10ms to ensure powered up
+ // Note: very similar to SPLC792A
+ case ST7032_5V:
+ // ST7032 controller: Disable Voltage booster for VLCD. VDD=5V
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+// case LCD20x1:
+ case LCD24x1:
+ _function = 0x00; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=0 (1-line display mode), F=0 (5*7dot), 0, IS
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+ case LCD12x4D: // Special mode for KS0078 and PCF21XX
+ case LCD16x3G: // Special mode for ST7036
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays
+ _function = 0x08; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=1 (2-line display mode), F=0 (5*7dot), 0, IS
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+ break;
+ } // switch type
+
+ // init special features
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
+
+ _writeCommand(0x1C); // Internal OSC frequency adjustment Framefreq=183HZ, Bias will be 1/4 (Instr Set=1)
+ // Note: Bias and Osc register not available on SPLC792A
+
+ _contrast = LCD_ST7032_CONTRAST;
+ _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast Low bits, 0 1 1 1 C3 C2 C1 C0 (IS=1)
+
+
+ if (_ctrl == ST7032_3V3) {
+// _icon_power = 0x04; // Icon display off (Bit3=0), Booster circuit is turned on (Bit2=1) (IS=1)
+ _icon_power = 0x0C; // Icon display on (Bit3=1), Booster circuit is turned on (Bit2=1) (IS=1)
+ // Note: Booster circuit always on for SPLC792A, Bit2 is dont care
+ // Saved to allow contrast change at later time
+ }
+ else {
+// _icon_power = 0x00; // Icon display off, Booster circuit is turned off (IS=1)
+ _icon_power = 0x08; // Icon display on, Booster circuit is turned off (IS=1)
+ // Saved to allow contrast change at later time
+ }
+ _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Icon, Booster and Contrast High bits, 0 1 0 1 Ion Bon C5 C4 (IS=1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x68 | (LCD_ST7032_RAB & 0x07)); // Voltage follower, 0 1 1 0 FOn=1, Ampl ratio Rab2=1, Rab1=0, Rab0=0 (IS=1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x20 | _function); // Select Instruction Set = 0
+
+ break; // case ST7032_3V3 Controller
+ // case ST7032_5V Controller
+
+ case ST7036_3V3:
+ // ST7036 controller: Initialise Voltage booster for VLCD. VDD=3V3
+ // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G)
+ case ST7036_5V:
+ // ST7036 controller: Disable Voltage booster for VLCD. VDD=5V
+ // Note: supports 1,2 (LCD_T_A) or 3 lines (LCD_T_G)
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2D is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+ case LCD24x1:
+ _function = 0x00; // Set function, 0 0 1 DL=0 (4-bit Databus), N=0 (1 Line), DH=0 (5x7font), IS2, IS1 (Select Instruction Set)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+
+ _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD
+ break;
+
+// case LCD12x3G: // Special mode for ST7036
+ case LCD16x3G: // Special mode for ST7036
+ _function = 0x08; // Set function, 0 0 1 DL=0 (4-bit Databus), N=1 (2 Line), DH=0 (5x7font), IS2,IS1 (Select Instruction Set)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+
+ _bias_lines = 0x05; // Bias: 1/5, 3-Lines LCD
+ break;
+
+// case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+// case LCD16x3D1: // Special mode for SSD1803
+ case LCD12x4D: // Special mode for PCF2116
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _function = 0x08; // Set function, 0 0 1 DL=0 (4-bit Databus), N=1 (2 Line), DH=0 (5x7font), IS2,IS1 (Select Instruction Set)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+
+ _bias_lines = 0x04; // Bias: 1/5, 1 or 2-Lines LCD
+ break;
+ } // switch type
+
+
+ // init special features
+ _writeCommand(0x20 | _function | 0x01); // Set function, IS2,IS1 = 01 (Select Instr Set = 1)
+ _writeCommand(0x10 | _bias_lines); // Set Bias and 1,2 or 3 lines (Instr Set 1)
+
+ _contrast = LCD_ST7036_CONTRAST;
+ _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast, 0 1 1 1 C3 C2 C1 C0 (Instr Set 1)
+
+ if (_ctrl == ST7036_3V3) {
+ _icon_power = 0x0C; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=1 Bon=1 C5 C4 (Instr Set 1)
+// _icon_power = 0x04; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=0 Bon=1 C5 C4 (Instr Set 1)
+ // Saved to allow contrast change at later time
+ }
+ else {
+ _icon_power = 0x08; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=1 Bon=0 C5 C4 (Instr Set 1)
+// _icon_power = 0x00; // Set Icon, Booster, Contrast High bits, 0 1 0 1 Ion=0 Bon=0 C5 C4 (Instr Set 1)
+ }
- _writeCommand(0x6C); //Follower control
- wait_ms(10); // Wait 10ms to ensure powered up
+ _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Contrast C5, C4 (Instr Set 1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x68 | (LCD_ST7036_RAB & 0x07)); // Voltagefollower On = 1, Ampl ratio Rab2, Rab1, Rab0 = 1 0 1 (Instr Set 1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instruction Set = 0)
+
+ break; // case ST7036_3V3 Controller
+ // case ST7036_5V Controller
+
+ case ST7070:
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2D is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+ case LCD24x1:
+ _function = dl | 0x00; // Set function, 0 0 1 DL=0 (4-bit Databus), N=0 (1 Line), EXT=0, x, x
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // Saved to allow switch between Instruction sets at later time
+ break;
+
+// case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+// case LCD16x3D1: // Special mode for SSD1803
+ case LCD12x4D: // Special mode for PCF2116
+ case LCD24x4D: // Special mode for KS0078
+// case LCD12x3G: // Special mode for ST7036
+ case LCD16x3G: // Special mode for ST7036
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _function = dl | 0x08; // Set function, 0 0 1 DL, N=1 (2 Line), EXT=0, x, x
+ // Note: 4 bit mode is NOT ignored for native SPI !
+ // Saved to allow switch between Instruction sets at later time
+ break;
+ } // switch type
+
+// _writeCommand(0x00); // NOP, make sure to sync SPI
+
+ // init special features
+ _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1)
+
+ _writeCommand(0x04 | 0x00); // Set Bias resistors 0 0 0 0 0 1 Rb1,Rb0= 0 0 (Extern Res) (Instr Set 1)
+
+ _writeCommand(0x40 | 0x00); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
+ // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
+ // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
+
+ _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
+
+ break; // case ST7070 Controller
+
+ case SSD1803_3V3:
+ // SSD1803 controller: Initialise Voltage booster for VLCD. VDD=3V3
+ // Note: supports 1,2, 3 or 4 lines
+// case SSD1803_5V:
+ // SSD1803 controller: No Voltage booster for VLCD. VDD=5V
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2D is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+ case LCD24x1:
+ _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=0 1 Line / 3 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x02; // Set function, 0 0 1 DL N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=0 1 Line / 3 Line
+ // BE=0 Blink Enable off, special feature of SSD1803
+ // REV=0 Reverse off, special feature of SSD1803
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=0 1-Line LCD (N=0)
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+// case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+ case LCD16x3D: // Special mode for KS0078
+// case LCD16x3D1: // Special mode for SSD1803
+// case LCD20x3D: // Special mode for SSD1803
+ _function = 0x00; // Set function 0 0 1 DL N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=0 1 Line / 3 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x02; // Set function, 0 0 1 DL N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=0 1 Line / 3 Line
+ // BE=0 Blink Enable off, special feature of SSD1803
+ // REV=0 Reverse off, special feature of SSD1803
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=1 3-Line LCD (N=0)
+ break;
+
+// case LCD10x2D: // Special mode for SSD1803, 4-line mode but switch to double height font
+ case LCD10x4D: // Special mode for SSD1803
+ case LCD20x4D: // Special mode for SSD1803
+ _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 4 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 4 Line
+ // BE=0 Blink Enable off, special feature of SSD1803
+ // REV=0 Reverse off, special feature of SSD1803
+
+ _lines = 0x01; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=1 4-Line LCD (N=1)
+ break;
+
+ case LCD16x3G: // Special mode for ST7036
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _function = 0x08; // Set function 0 0 1 DL N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 2 line / 4 Line
+ // DH=0 Double Height disable
+ // RE=0
+ // IS=0
-// _writeCommand(0x38); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot, Return to Instruction Set = 0
- _writeCommand(0x28); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Return to Instruction Set = 0
- //Note: 4 bit mode is ignored for native SPI and I2C devices
-
- _writeCommand(0x14); // Cursor or Display shift 0001 S/C R/L x x
- // S/C=0 Cursor moves
- // R/L=1 Right
- //
- break;
-
-
- case ST7032_5V:
- // ST7032 controller: Disable Voltage booster for VLCD. VDD=5V
-// _writeCommand(0x39); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot, Instruction Set = 1
- _writeCommand(0x29); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Select Instruction Set = 1
- //Note: 4 bit mode is ignored for native SPI and I2C devices
-
- _writeCommand(0x1C); //Internal OSC frequency adjustment 183HZ, bias will be 1/4
-
- _writeCommand(0x73); //Contrast control low byte
-
- _writeCommand(0x53); //booster circuit is turned off. /ICON display off. /Contrast control high byte
- wait_ms(10); // Wait 10ms to ensure powered up
+ _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 4-bit Databus,
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 2 line / 4 Line
+ // BE=0 Blink Enable off, special feature of SSD1803
+ // RE=1
+ // REV=0 Reverse off, special feature of SSD1803
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=0 2-Line LCD (N=1)
+ break;
+ } // switch type
+
+
+ // init special features
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
+ // Select Extended Instruction Set
+
+ _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
+// _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
+ WAIT_MS(5); // Wait to ensure completion or SSD1803 fails to set Top/Bottom after reset..
+
+ _writeCommand(0x08 | _lines); // Set ext function 0 0 0 0 1 FW BW NW 1,2,3 or 4 lines (Ext Instr Set)
+
+ _writeCommand(0x10); // Double Height and Bias, 0 0 0 1 UD2=0, UD1=0, BS1=0 Bias 1/5, DH=0 (Ext Instr Set)
+
+// _writeCommand(0x76); // Set TC Control, 0 1 1 1 0 1 1 0 (Ext Instr Set)
+// _writeData(0x02); // Set TC data, 0 0 0 0 0 TC2,TC1,TC0 = 0 1 0 (Ext Instr Set)
+
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS=1 Select Instruction Set 1
+ // Select Std Instr set, Select IS=1
+
+ _contrast = LCD_SSD1_CONTRAST;
+ _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast 0 1 1 1 C3, C2, C1, C0 (Instr Set 1)
+
+// _icon_power = 0x04; // Icon off, Booster on (Instr Set 1)
+ _icon_power = 0x0C; // Icon on, Booster on (Instr Set 1)
+ // Saved to allow contrast change at later time
+ _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Power, Icon and Contrast, 0 1 0 1 Ion Bon C5 C4 (Instr Set 1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _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)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
+ // Select Extended Instruction Set 1
+ _writeCommand(0x10); // Shift/Scroll enable, 0 0 0 1 DS4/HS4 DS3/HS3 DS2/HS2 DS1/HS1 (Ext Instr Set 1)
+
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+
+ break; // case SSD1803 Controller
+
+
+ // Note1: The PCF21XX family of controllers has several types that dont have an onboard voltage generator for V-LCD.
+ // You must supply this LCD voltage externally and not try to enable VGen.
+ // Note2: The early versions of PCF2116 controllers (eg PCF2116C) can not generate sufficiently negative voltage for the LCD at a VDD of 3V3.
+ // You must supply this voltage externally and not enable VGen or you must use a higher VDD (e.g. 5V) and enable VGen.
+ // More recent versions of the controller (eg PCF2116K) have an improved VGen that will work with 3V3.
+ // 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
+ // contrast control similar to that of pin 3 on the standard 14pin LCD module connector.
+ // You can disable VGen by connecting Vo to VDD. VLCD will then be used directly as LCD voltage.
+ // 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.
+ // 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.
+ // Note5: See datasheet, members of the PCF21XX family support different numbers of rows/columns. Not all can support 3 or 4 rows.
+ // 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..
+
+ case PCF2103_3V3:
+ // PCF2103 controller: No Voltage generator for VLCD, VDD=3V3..5V, VLCD input controls contrast voltage.
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD24x1:
+ _function = 0x00; //FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=0 1-line/24 chars display mode, 0, H=0
+ //Note: 4 bit mode is ignored for I2C mode
+ break;
+
+// case LCD12x1D: //Special mode for PCF21XX, Only top line used
+ case LCD12x2:
+ _function = 0x04; //FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=1 2-line/12 chars display mode, 0, H=0
+ //Note: 4 bit mode is ignored for I2C mode
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+// Note: Display from GA628 shows 12 chars. This is actually the right half of a 24x1 display. The commons have been connected in reverse order.
+ _writeCommand(0x05); // Display Conf Set 0000 0, 1, P=0, Q=1 (Instr. Set 1)
+
+ _writeCommand(0x02); // Screen Config 0000 001, L=0 (Instr. Set 1)
+ _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=0 (no Icon blink), 0 (Instr. Set 1)
+
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+
+#if(0)
+ // Select CG RAM
+ _writeCommand(0x40); //Set CG-RAM address, 8 sequential locations needed per UDC
+ // Store UDC/Icon pattern:
+ // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
+ // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
+ for (int i=0; i<(8 * 8); i++) {
+// _writeData(0x1F); // All On
+ _writeData(0x00); // All Off
+ }
+#endif
+ break; // case PCF2103_3V3 Controller
+
+ case PCF2113_3V3:
+ // PCF2113 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
+ // Initialise Display configuration
+ switch (_type) {
+// case LCD12x1:
+// _function = 0x02; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=0 1-line/12 chars display mode, SL=1, IS=0
+ // Note: 4 bit mode is ignored for I2C mode
+ case LCD24x1:
+ _function = 0x00; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=0 1-line/24 chars display mode, SL=0, IS=0
+ // Note: 4 bit mode is ignored for I2C mode
+ break;
+
+ case LCD12x2:
+ _function = 0x04; // FUNCTION SET 0 0 1 DL=0 4 bit, 0, M=1 2-line/12 chars display mode, SL=0, IS=0
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ // Init special features
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+
+ _writeCommand(0x04); // Display Conf Set 0000 0, 1, P=0, Q=0 (Instr. Set 1)
+ _writeCommand(0x10); // Temp Compensation Set 0001 0, 0, TC1=0, TC2=0 (Instr. Set 1)
+// _writeCommand(0x42); // HV GEN 0100 S1=1, S2=0 (2x multiplier) (Instr. Set 1)
+ _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV Gen 0100 S1=1, S2=0 (2x multiplier) (Instr. Set 1)
+
+ _contrast = LCD_PCF2_CONTRAST;
+ _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) 1, V=0, VA=contrast
+ _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) 1, V=1, VB=contrast
+ WAIT_MS(10); // Wait 10ms to ensure powered up
- _writeCommand(0x6C); //Follower control
- wait_ms(10); // Wait 10ms to ensure powered up
+ _writeCommand(0x02); // Screen Config 0000 001, L=0 (Instr. Set 1)
+ _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=0 (no icon blink) DM=0 (no direct mode) (Instr. Set 1)
+
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+
+ break; // case PCF2113_3V3 Controller
+
+
+// case PCF2113_5V:
+ // PCF2113 controller: No Voltage generator for VLCD. VDD=5V. Contrast voltage controlled by VA or VB.
+//@TODO
+
+
+ case PCF2116_3V3:
+ // PCF2116 controller: Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage.
+ // Initialise Display configuration
+ switch (_type) {
+// case LCD12x1:
+// case LCD12x2:
+ case LCD24x1:
+ _writeCommand(0x22); //FUNCTION SET 0 0 1 DL=0 4-bit, N=0/M=0 1-line/24 chars display mode, G=1 Vgen on, 0
+ //Note: 4 bit mode is ignored for I2C mode
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for PCF21XX
+ case LCD12x4D: // Special mode for PCF21XX:
+ _writeCommand(0x2E); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=1 4-line/12 chars display mode, G=1 VGen on, 0
+ //Note: 4 bit mode is ignored for I2C mode
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+ break;
+
+ case LCD24x2:
+ _writeCommand(0x2A); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=0 2-line/24 chars display mode, G=1 VGen on, 0
+ //Note: 4 bit mode is ignored for I2C mode
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ break; // case PCF2116_3V3 Controller
+
+
+//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
+//@TODO
+ case PCF2116_5V:
+ // PCF2116 controller: No Voltage generator for VLCD. VDD=5V. V0 controls contrast voltage.
+ // Initialise Display configuration
+ switch (_type) {
+// case LCD12x1:
+// case LCD12x2:
+// case LCD24x1:
+// _writeCommand(0x20); //FUNCTION SET 0 0 1 DL=0 4-bit, N=0/M=0 1-line/24 chars display mode, G=0 no Vgen, 0
+ //Note: 4 bit mode is ignored for I2C mode
+// WAIT_MS(10); // Wait 10ms to ensure powered up
+// break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for PCF21XX
+ case LCD12x4D: // Special mode for PCF21XX:
+// _writeCommand(0x34); //FUNCTION SET 8 bit, N=0/M=1 4-line/12 chars display mode OK
+// _writeCommand(0x24); //FUNCTION SET 4 bit, N=0/M=1 4-line/12 chars display mode OK
+ _writeCommand(0x2C); //FUNCTION SET 0 0 1 DL=0 4-bit, N=1/M=1 4-line/12 chars display mode, G=0 no Vgen, 0 OK
+ //Note: 4 bit mode is ignored for I2C mode
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+ break;
+
+// case LCD24x2:
+// _writeCommand(0x28); //FUNCTION SET 4 bit, N=1/M=0 2-line/24 chars display mode
+ //Note: 4 bit mode is ignored for I2C mode
+// WAIT_MS(10); // Wait 10ms to ensure powered up
+// break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ break; // case PCF2116_5V Controller
+
+ case PCF2119_3V3:
+ case PCF2119R_3V3:
+ // PCF2119 controller: Initialise Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
+ // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters.
+ // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00.
+
+//POR or Hardware Reset should be applied
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1:
+// case LCD12x1:
+ case LCD16x1:
+ _function = 0x02; // FUNCTION SET 0 0 1 DL=0 4-bit, 0 , M=0 1-line/16 chars display mode, SL=1
+ // Note: 4 bit mode is ignored for I2C mode
+ break;
+
+ case LCD24x1:
+// case LCD32x1:
+ _function = 0x00; // FUNCTION SET 0 0 1 DL=0 4-bit, 0 , M=0 1-line/32 chars display mode, SL=0
+ // Note: 4 bit mode is ignored for I2C mode
+ break;
+
+ case LCD8x2:
+// case LCD12x2:
+ case LCD16x2:
+ _function = 0x04; // FUNCTION SET 0 0 1 DL=0 4-bit, 0, M=1 2-line/16 chars display mode, SL=0
+ // Note: 4 bit mode is ignored for I2C mode
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ // Init special features
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1
+
+// _writeCommand(0x04); // DISP CONF SET (Instr. Set 1) 0000, 0, 1, P=0, Q=0 (IC at Bottom)
+// _writeCommand(0x05); // Display Conf Set 0000, 0, 1, P=0, Q=1
+// _writeCommand(0x06); // Display Conf Set 0000, 0, 1, P=1, Q=0
+ _writeCommand(0x07); // Display Conf Set 0000, 0, 1, P=1, Q=1 (IC at Top)
+
+ _writeCommand(0x10); // TEMP CTRL SET (Instr. Set 1) 0001, 0, 0, TC1=0, TC2=0
+// _writeCommand(0x42); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier)
+ _writeCommand(0x40 | (LCD_PCF2_S12 & 0x03)); // HV GEN (Instr. Set 1) 0100, 0, 0, S1=1, S2=0 (2x multiplier)
+
+ _contrast = LCD_PCF2_CONTRAST;
+ _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast
+ _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast
+ WAIT_MS(10); // Wait 10ms to ensure powered up
-// _writeCommand(0x38); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot, Instruction Set = 0
- _writeCommand(0x28); //FUNCTION SET 4 bit, N=1 2-line display mode, 5*7dot, Return to Instruction Set = 0
- //Note: 4 bit mode is ignored for native SPI and I2C devices
-
- break;
-
+ _writeCommand(0x02); // SCRN CONF (Instr. Set 1) L=0
+ _writeCommand(0x08); // ICON CONF (Instr. Set 1) IM=0 (Char mode) IB=0 (no icon blink) DM=0 (no direct mode)
+
+ _writeCommand(0x20 | _function); // Select Instruction Set = 0
+
+ break; // case PCF2119_3V3 Controller
+
+// case PCF2119_5V:
+ // PCF2119 controller: No Voltage booster for VLCD. VDD=3V3. VA and VB control contrast.
+ // Note1: See datasheet, the PCF2119 supports icons and provides separate constrast control for Icons and characters.
+ // Note2: Vgen is switched off when the contrast voltage VA or VB is set to 0x00.
+//@TODO
+
case WS0010:
// WS0010 OLED controller: Initialise DC/DC Voltage converter for LEDs
- // Note: supports 1 or 2 lines (and 16x100 graphics)
- // supports 4 fonts (English/Japanese (default), Western European-I, English/Russian, Western European-II)
+ // Note1: Identical to RS0010
+ // Note2: supports 1 or 2 lines (and 16x100 graphics)
+ // supports 4 fonts (English/Japanese (default), Western European-I, English/Russian, Western European-II)
// Cursor/Disp shift set 0001 SC RL 0 0
//
- // Mode en Power set 0001 GC PWR 1 1
+ // Mode and Power set 0001 GC PWR 1 1
// GC = 0 (Graph Mode=1, Char Mode=0)
- // PWR = (DC/DC On/Off)
-
- //_writeCommand(0x13); // DC/DC off
- _writeCommand(0x17); // DC/DC on
- wait_ms(10); // Wait 10ms to ensure powered up
+ // PWR = 1 (DC/DC On/Off)
+
+//@Todo: This may be needed to enable a warm reboot
+ //_writeCommand(0x13); // Char mode, DC/DC off
+ //WAIT_MS(10); // Wait 10ms to ensure powered down
+ _writeCommand(0x17); // Char mode, DC/DC on
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+ case LCD24x1:
+ _writeCommand(0x20); // Function set 001 DL N F FT1 FT0
+ // DL=0 (4 bits bus)
+ // N=0 (1 line)
+ // F=0 (5x7 dots font)
+ // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for PCF21XX
+ case LCD12x4D: // Special mode for PCF21XX:
+ case LCD16x3G: // Special mode for ST7036
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _writeCommand(0x28); // Function set 001 DL N F FT1 FT0
+ // DL=0 (4 bits bus)
+ // N=1 (2 lines)
+ // F=0 (5x7 dots font)
+ // FT=00 (00 = Engl/Jap, 01 = WestEur1, 10 = Engl/Russian, 11 = WestEur2
+
+ break;
+ } // switch type
+
+ break; // case WS0010 Controller
+
+
+ case US2066_3V3:
+ // US2066/SSD1311 OLED controller, Initialise for VDD=3V3
+ // Note: supports 1,2, 3 or 4 lines
+// case USS2066_5V:
+ // US2066 controller, VDD=5V
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2D is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+// case LCD20x1:
+ _function = 0x00; // Set function 0 0 1 X N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=0 1 Line / 3 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x02; // Set function, 0 0 1 X N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=0 1 Line / 3 Line
+ // BE=0 Blink Enable off, special feature of SSD1803, US2066
+ // REV=0 Reverse off, special feature of SSD1803, US2066
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=0 1-Line LCD (N=0)
+ break;
+
+ case LCD16x1C:
+ case LCD8x2:
+ case LCD16x2:
+ case LCD20x2:
+ _function = 0x08; // Set function 0 0 1 X N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=1 2 line / 4 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x0A; // Set function, 0 0 1 X N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=1 2 line / 4 Line
+ // BE=0 Blink Enable off, special feature of SSD1803, US2066
+ // REV=0 Reverse off, special feature of SSD1803, US2066
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=0 2-Line LCD (N=1)
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+// case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+ case LCD16x3D: // Special mode for KS0078, SSD1803 and US2066
+// case LCD16x3D1: // Special mode for SSD1803, US2066
+// case LCD20x3D: // Special mode for SSD1803, US2066
+ _function = 0x00; // Set function 0 0 1 X N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=0 1 Line / 3 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x02; // Set function, 0 0 1 X N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=0 1 Line / 3 Line
+ // BE=0 Blink Enable off, special feature of SSD1803, US2066
+ // REV=0 Reverse off, special feature of SSD1803, US2066
+
+ _lines = 0x00; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=1 3-Line LCD (N=0)
+ break;
+
+ case LCD20x4D: // Special mode for SSD1803, US2066
+ _function = 0x08; // Set function 0 0 1 X N DH RE(0) IS
+ // Saved to allow switch between Instruction sets at later time
+ // DL=X bit is ignored for US2066. Uses hardwired pins instead
+ // N=1 2 line / 4 Line
+ // DH=0 Double Height disable
+ // IS=0
+
+ _function_1 = 0x0A; // Set function, 0 0 1 DL N BE RE(1) REV
+ // Saved to allow switch between Instruction sets at later time
+ // DL=0 bit is ignored for US2066. Uses hardwired pins instead
+ // N=1 2 line / 4 Line
+ // BE=0 Blink Enable off, special feature of SSD1803, US2066
+ // REV=0 Reverse off, special feature of SSD1803, US2066
+
+ _lines = 0x01; // Ext function set 0 0 0 0 1 FW BW NW
+ // NW=1 4-Line LCD (N=1)
+ break;
+
+// case LCD24x1:
+// case LCD16x3G: // Special mode for ST7036
+// case LCD24x4D: // Special mode for KS0078
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ } // switch type
+
+ _writeCommand(0x00); // NOP, make sure to sync SPI
+
+ // init special features
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+
+ _writeCommand(0x71); // Function Select A: 0 1 1 1 0 0 0 1 (Ext Instr Set)
+ _writeData(0x00); // Disable Internal VDD
+
+ _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
+
+ _writeCommand(0xD5); // Display Clock Divide Ratio: 1 1 0 1 0 1 0 1 (Ext Instr Set, OLED Instr Set)
+ _writeCommand(0x70); // Display Clock Divide Ratio value: 0 1 1 1 0 0 0 0 (Ext Instr Set, OLED Instr Set)
+
+ _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
+
+// _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
+ _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
+
+ _writeCommand(0x08 | _lines); // Set ext function 0 0 0 0 1 FW BW NW 1,2,3 or 4 lines (Ext Instr Set)
+
+// _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
+// // Default
+
+ _writeCommand(0x72); // Function Select B: 0 1 1 1 0 0 1 0 (Ext Instr Set)
+ _writeData(0x01); // Select ROM A (CGRAM 8, CGROM 248)
+
+ _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
+
+ _writeCommand(0xDA); // Set Segm Pins Config: 1 1 0 1 1 0 1 0 (Ext Instr Set, OLED)
+ _writeCommand(0x10); // Set Segm Pins Config value: Altern Odd/Even, Disable Remap (Ext Instr Set, OLED)
+
+ _writeCommand(0xDC); // Function Select C: 1 1 0 1 1 1 0 0 (Ext Instr Set, OLED)
+// _writeCommand(0x00); // Set internal VSL, GPIO pin HiZ (always read low)
+ _writeCommand(0x80); // Set external VSL, GPIO pin HiZ (always read low)
+
+ _contrast = LCD_US20_CONTRAST;
+ _writeCommand(0x81); // Set Contrast Control: 1 0 0 0 0 0 0 1 (Ext Instr Set, OLED)
+ _writeCommand((_contrast << 2) | 0x03); // Set Contrast Value: 8 bits, use 6 bits for compatibility
+
+ _writeCommand(0xD9); // Set Phase Length: 1 1 0 1 1 0 0 1 (Ext Instr Set, OLED)
+ _writeCommand(0xF1); // Set Phase Length Value:
+
+ _writeCommand(0xDB); // Set VCOMH Deselect Lvl: 1 1 0 1 1 0 1 1 (Ext Instr Set, OLED)
+ _writeCommand(0x30); // Set VCOMH Deselect Value: 0.83 x VCC
+
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+//Test Fade/Blinking. Hard Blink on/off, No fade in/out ??
+// _writeCommand(0x23); // Set (Ext Instr Set, OLED)
+// _writeCommand(0x3F); // Set interval 128 frames
+//End Test Blinking
+
+ _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
- break;
-
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 X N DH RE(0) IS=1 Select Instruction Set 1
+ // Select Std Instr set, Select IS=1
+
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Ext Instr Set, IS=1
+ _writeCommand(0x10); // Shift/Scroll enable, 0 0 0 1 DS4/HS4 DS3/HS3 DS2/HS2 DS1/HS1 (Ext Instr Set, IS=1)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // case US2066/SSD1311 Controller
+
+ //not yet tested on hardware
+ case PT6314 :
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+ case LCD20x1:
+ case LCD24x1:
+ _function = 0x00; // Function set 001 DL N X BR1 BR0
+ // DL=0 (4 bits bus)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=0 (1 line)
+ // X
+ // BR1=0 (2 significant bits for brightness
+ // BR0=0
+ // 0x0 = 100%
+ // 0x1 = 75%
+ // 0x2 = 50%
+ // 0x3 = 25%
+
+ break;
+
+ // All other valid LCD types are initialised as 2 Line displays
+ case LCD8x2:
+ case LCD16x2:
+ case LCD20x2:
+ case LCD24x2:
+ _function = 0x08; // Function set 001 DL N X BR1 BR2
+ // DL=0 (4 bits bus)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 (2 lines)
+ // X
+ // BR1=0 (2 significant bits for brightness
+ // BR0=0
+ break;
+
+ default:
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+ } // switch type
+
+ _contrast = LCD_PT63_CONTRAST;
+ _writeCommand(0x20 | _function | ((~_contrast) >> 4)); // Invert and shift to use 2 MSBs
+ break; // case PT6314 Controller (VFD)
+
+
+ case HD66712:
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD12x1:
+ case LCD16x1:
+ case LCD20x1:
+ case LCD24x1:
+// case LCD32x1: // EXT pin is High, extension driver needed
+ _function = 0x02; // Function set 001 DL N RE(0) - - (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1-line mode, N=1 2-line mode)
+ // RE=0 (Dis. Extended Regs, special mode for HD66712)
+ //
+
+ _function_1 = 0x04; // Function set 001 DL N RE(1) BE LP (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1-line mode, N=1 2-line mode)
+ // RE=1 (Ena Extended Regs; special mode for HD66712)
+ // BE=0 (Blink Enable, CG/SEG RAM; special mode for HD66712)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal; special mode for HD66712)
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for HD66712)
+ break;
+
+// case LCD12x3D: // Special mode for KS0073, KS0078, PCF21XX and HD66712
+// case LCD12x3D1: // Special mode for KS0073, KS0078, PCF21XX and HD66712
+ case LCD12x4D: // Special mode for KS0073, KS0078, PCF21XX and HD66712
+// case LCD16x3D: // Special mode for KS0073, KS0078 and HD66712
+// case LCD16x4D: // Special mode for KS0073, KS0078 and HD66712
+ case LCD20x4D: // Special mode for KS0073, KS0078 and HD66712
+ _function = 0x02; // Function set 001 DL N RE(0) - - (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1-line mode, N=1 2-line mode)
+ // RE=0 (Dis. Extended Regs, special mode for HD66712)
+ //
+
+ _function_1 = 0x04; // Function set 001 DL N RE(1) BE LP (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=0 (1-line mode, N=1 2-line mode)
+ // RE=1 (Ena Extended Regs; special mode for HD66712)
+ // BE=0 (Blink Enable, CG/SEG RAM; special mode for HD66712)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal; special mode for HD66712)
+
+ _function_x = 0x01; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for HD66712)
+ break;
+
+ case LCD16x3G: // Special mode for ST7036
+// case LCD24x3D: // Special mode for KS0078
+// case LCD24x3D1: // Special mode for KS0078
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ _function = 0x0A; // Function set 001 DL N RE(0) - - (Std Regs)
+ // DL=0 (4 bits bus)
+ // N=1 (2-line mode), N=0 (1-line mode)
+ // RE=0 (Dis. Extended Regs, special mode for HD66712)
+
+ _function_1 = 0x0C; // Function set 001 DL N RE(1) BE LP (Ext Regs)
+ // DL=0 (4 bits bus)
+ // N=1 (2 line mode), N=0 (1-line mode)
+ // RE=1 (Ena Extended Regs, special mode for HD66712)
+ // BE=0 (Blink Enable, CG/SEG RAM, special mode for HD66712)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _function_x = 0x00; // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // NW=0 (1,2 line), NW=1 (4 Line, special mode for HD66712)
+ break;
+ } // switch type
+
+ // init special features
+ _writeCommand(0x20 | _function_1);// Function set 001 DL N RE(1) BE LP (Ext Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=1 (Ena Extended Regs, special mode for HD66712)
+ // BE=0 (Blink Enable/Disable, CG/SEG RAM, special mode for HD66712)
+ // LP=0 (LP=1 Low power mode, LP=0 Normal)
+
+ _writeCommand(0x08 | _function_x); // Ext Function set 0000 1 FW BW NW (Ext Regs)
+ // FW=0 (5-dot font, special mode for HD66712)
+ // BW=0 (Cur BW invert disable, special mode for HD66712)
+ // NW=0 (1,2 Line), NW=1 (4 line, special mode for HD66712)
+
+ _writeCommand(0x10); // Scroll/Shift set 0001 HS4 HS3 HS2 HS1 (Ext Regs)
+ // Dotscroll/Display shift enable (Special mode for HD66712)
+
+ _writeCommand(0x80); // Scroll Quantity set 1 0 HDS5 HDS4 HDS3 HDS2 HDS1 HDS0 (Ext Regs)
+ // Scroll quantity (Special mode for HD66712)
+
+ _writeCommand(0x20 | _function); // Function set 001 DL N RE(0) DH REV (Std Regs)
+ // DL=0 (4 bits bus), DL=1 (8 bits mode)
+ // N=0 (1 line mode), N=1 (2 line mode)
+ // RE=0 (Dis. Extended Regs, special mode for HD66712)
+ // DH=1 (Disp shift enable/disable, special mode for HD66712)
+ // REV=0 (Reverse/Normal, special mode for HD66712)
+ break; // case HD66712 Controller
+
+ case SPLC792A_3V3:
+ // SPLC792A controller: Initialise Voltage booster for VLCD. VDD=3V3
+ // Note very similar to ST7032
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+// case LCD20x1:
+ case LCD24x1:
+ _function = 0x00; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=0 (1-line display mode), F=0 (5*7dot), 0, IS
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+ case LCD12x4D: // Special mode for KS0078 and PCF21XX
+ case LCD16x3G: // Special mode for ST7036
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ default:
+ // All other LCD types are initialised as 2 Line displays
+ _function = 0x08; // FUNCTION SET 0 0 1 DL=0 (4 bit), N=1 (2-line display mode), F=0 (5*7dot), 0, IS
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // Saved to allow switch between Instruction sets at later time
+ break;
+ } // switch type
+
+ // init special features
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
+
+//SPLC792A Does not support Bias and Internal Osc register
+// _writeCommand(0x1C); // Internal OSC frequency adjustment Framefreq=183HZ, Bias will be 1/4 (Instr Set=1)
+
+ _contrast = LCD_SPLC792A_CONTRAST;
+ _writeCommand(0x70 | (_contrast & 0x0F)); // Set Contrast Low bits, 0 1 1 1 C3 C2 C1 C0 (IS=1)
+
+
+// _icon_power = 0x04; // Icon display off (Bit3=0), Booster circuit is turned on (Bit2=1) (IS=1)
+ _icon_power = 0x0C; // Icon display on (Bit3=1), Booster circuit is turned on (Bit2=1) (IS=1)
+ // Note: Booster circuit always on for SPLC792A, Bit2 is dont care
+ // Saved to allow contrast change at later time
+
+ _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Set Icon, Booster and Contrast High bits, 0 1 0 1 Ion Bon C5 C4 (IS=1)
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x68 | (LCD_SPLC792A_RAB & 0x07)); // Voltage follower, 0 1 1 0 FOn=1, Ampl ratio Rab2=1, Rab1=0, Rab0=0 (IS=1)
+ // Note: Follower circuit always on for SPLC792A, Bit3 is dont care
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+
+ _writeCommand(0x20 | _function); // Select Instruction Set = 0
+
+ break; // case SPLC792A_3V3 Controller
+
+ case ST7066_ACM: // ST7066 4/8 bit, I2C on ACM1602 using a PIC
default:
- // Devices that do not use DC/DC Voltage converters but external VLCD
- break;
- }
-
- // Initialise Display configuration
- switch (_type) {
- case LCD8x1:
- case LCD8x2B:
- //8x1 is a regular 1 line display
- //8x2B is a special case of 16x1
- _writeCommand(0x20); // Function set 001 DL N F - -
- // DL=0 (4 bits bus)
- // N=0 (1 line)
- // F=0 (5x7 dots font)
- break;
-
- case LCD24x4:
- // Special mode for KS0078
- _writeCommand(0x2A); // Function set 001 DL N RE DH REV
- // DL=0 (4 bits bus)
- // N=1 (Dont care for KS0078)
- // RE=0 (Extended Regs, special mode for KS0078)
- // DH=1 (Disp shift, special mode for KS0078)
- // REV=0 (Reverse, special mode for KS0078)
-
- _writeCommand(0x2E); // Function set 001 DL N RE DH REV
- // DL=0 (4 bits bus)
- // N=1 (Dont care for KS0078)
- // RE=1 (Ena Extended Regs, special mode for KS0078)
- // DH=1 (Disp shift, special mode for KS0078)
- // REV=0 (Reverse, special mode for KS0078)
-
- _writeCommand(0x09); // Ext Function set 0000 1 FW BW NW
- // FW=0 (5-dot font, special mode for KS0078)
- // BW=0 (Cur BW invert disable, special mode for KS0078)
- // NW=1 (4 Line, special mode for KS0078)
-
- _writeCommand(0x2A); // Function set 001 DL N RE DH REV
- // DL=0 (4 bits bus)
- // N=1 (Dont care for KS0078)
- // RE=0 (Dis. Extended Regs, special mode for KS0078)
- // DH=1 (Disp shift, special mode for KS0078)
- // REV=0 (Reverse, special mode for KS0078)
- break;
-
-// All other LCD types are initialised as 2 Line displays (including LCD40x4)
- default:
- _writeCommand(0x28); // Function set 001 DL N F - -
- // DL=0 (4 bits bus)
- // Note: 4 bit mode is ignored for native SPI and I2C devices
- // N=1 (2 lines)
- // F=0 (5x7 dots font, only option for 2 line display)
- // - (Don't care)
-
- break;
- }
-
- _writeCommand(0x01); // cls, and set cursor to 0
- wait_ms(10); // The CLS command takes 1.64 ms.
- // Since we are not using the Busy flag, Lets be safe and take 10 ms
-
- _writeCommand(0x02); // Return Home
- // Cursor Home, DDRAM Address to Origin
+ // Devices fully compatible to HD44780 that do not use any DC/DC Voltage converters but external VLCD, no icons etc
+
+ // Initialise Display configuration
+ switch (_type) {
+ case LCD8x1: //8x1 is a regular 1 line display
+ case LCD8x2B: //8x2B is a special case of 16x1
+// case LCD12x1:
+ case LCD16x1:
+// case LCD20x1:
+ case LCD24x1:
+// case LCD40x1:
+ _function = 0x00; // Function set 001 DL N F - -
+ // DL=0 (4 bits bus)
+ // N=0 (1 line)
+ // F=0 (5x7 dots font)
+ break;
+
+ case LCD12x3D: // Special mode for KS0078 and PCF21XX
+ case LCD12x3D1: // Special mode for KS0078 and PCF21XX
+ case LCD12x4D: // Special mode for KS0078 and PCF21XX:
+ case LCD16x3D: // Special mode for KS0078
+// case LCD16x3D1: // Special mode for KS0078
+// case LCD24x3D: // Special mode for KS0078
+// case LCD24x3D1: // Special mode for KS0078
+ case LCD24x4D: // Special mode for KS0078
+ error("Error: LCD Controller type does not support this Display type\n\r");
+ break;
+
+ // All other LCD types are initialised as 2 Line displays (including LCD16x1C and LCD40x4)
+ default:
+ _function = 0x08; // Function set 001 DL N F - -
+ // DL=0 (4 bits bus)
+ // Note: 4 bit mode is ignored for native SPI and I2C devices
+ // N=1 (2 lines)
+ // F=0 (5x7 dots font, only option for 2 line display)
+ // - (Don't care)
+ break;
+ } // switch type
+
+ _writeCommand(0x20 | _function);
+ break; // case default Controller
+
+ } // switch Controller specific initialisations
+
+ // Controller general initialisations
+// _writeCommand(0x01); // Clear Display and set cursor to 0
+// WAIT_MS(10); // The CLS command takes 1.64 ms.
+// // Since we are not using the Busy flag, Lets be safe and take 10 ms
+
+ _writeCommand(0x02); // Cursor Home, DDRAM Address to Origin
+ WAIT_MS(10); // The Return Home command takes 1.64 ms.
+ // Since we are not using the Busy flag, Lets be safe and take 10 ms
_writeCommand(0x06); // Entry Mode 0000 0 1 I/D S
// Cursor Direction and Display Shift
// I/D=1 (Cur incr)
// S=0 (No display shift)
+ _writeCommand(0x14); // Cursor or Display shift 0001 S/C R/L x x
+ // S/C=0 Cursor moves
+ // R/L=1 Right
+ //
+
// _writeCommand(0x0C); // Display Ctrl 0000 1 D C B
// // Display On, Cursor Off, Blink Off
- setCursor(CurOff_BlkOff);
+
+// setCursor(CurOff_BlkOff);
+ setCursor(CurOn_BlkOff);
setMode(DispOn);
}
/** Clear the screen, Cursor home.
+ * Note: The whole display is initialised to charcode 0x20, which may not be a 'space' on some controllers with a
+ * different fontset such as the PCF2116C or PCF2119R. In this case you should fill the display with 'spaces'.
*/
void TextLCD_Base::cls() {
+#if (LCD_TWO_CTRL == 1)
// Select and configure second LCD controller when needed
if(_type==LCD40x4) {
_ctrl_idx=_LCDCtrl_1; // Select 2nd controller
@@ -263,28 +1494,39 @@
// Second LCD controller Clearscreen
_writeCommand(0x01); // cls, and set cursor to 0
- wait_ms(10); // The CLS command takes 1.64 ms.
- // Since we are not using the Busy flag, Lets be safe and take 10 ms
+ WAIT_MS(20); // The CLS command takes 1.64 ms.
+ // Since we are not using the Busy flag, Lets be safe and take 10 ms
_ctrl_idx=_LCDCtrl_0; // Select primary controller
}
+
// Primary LCD controller Clearscreen
_writeCommand(0x01); // cls, and set cursor to 0
- wait_ms(10); // The CLS command takes 1.64 ms.
- // Since we are not using the Busy flag, Lets be safe and take 10 ms
+ WAIT_MS(20); // The CLS command takes 1.64 ms.
+ // Since we are not using the Busy flag, Lets be safe and take 10 ms
// Restore cursormode on primary LCD controller when needed
if(_type==LCD40x4) {
_setCursorAndDisplayMode(_currentMode,_currentCursor);
}
+
+#else
+ // Support only one LCD controller
+ _writeCommand(0x01); // cls, and set cursor to 0
+ WAIT_MS(20); // The CLS command takes 1.64 ms.
+ // Since we are not using the Busy flag, Lets be safe and take 10 ms
+#endif
- _row=0; // Reset Cursor location
- _column=0;
+ setAddress(0, 0); // Reset Cursor location
+ // Note: This is needed because some displays (eg PCF21XX) don't use line 0 in the '3 Line' mode.
}
-/** Move cursor to selected row and column
- */
+/** Locate cursor to a screen column and row
+ *
+ * @param column The horizontal position from the left, indexed from 0
+ * @param row The vertical position from the top, indexed from 0
+ */
void TextLCD_Base::locate(int column, int row) {
// setAddress() does all the heavy lifting:
@@ -292,10 +1534,9 @@
// switch controllers for LCD40x4 if needed
// switch cursor for LCD40x4 if needed
// set the new memory address to show cursor at correct location
- setAddress(column, row);
-
+ setAddress(column, row);
}
-
+
/** Write a single character (Stream implementation)
*/
@@ -313,9 +1554,24 @@
}
}
else {
- //Character to write
- _writeData(value);
-
+ //Character to write
+
+#if (LCD_DEF_FONT == 1) //Default HD44780 font
+ _writeData(value);
+#elif (LCD_C_FONT == 1) || (LCD_R_FONT == 1) //PCF21xxC or PCF21xxR font
+ _writeData(ASCII_2_LCD(value));
+#elif (LCD_UTF8_FONT == 1) // UTF8 2 byte font (eg Cyrillic)
+// value = UTF_2_LCD(value, utf_seq_rec_first_cyr, utf_seq_recode_cyr, &utf_rnd_recode_cyr[0][0]);
+ value = UTF_2_LCD(value);
+ if (value >= 0) {
+ _writeData(value);
+
+ // Only increment cursor when there is something to write
+ // Continue below to closing bracket...
+#else
+ _writeData('?'); //Oops, no font defined
+#endif
+
//Update Cursor
_column++;
if (_column >= columns()) {
@@ -324,7 +1580,19 @@
if (_row >= rows()) {
_row = 0;
}
- }
+ }
+
+#if (LCD_DEF_FONT == 1) //Default HD44780 font
+
+#elif (LCD_C_FONT == 1) || (LCD_R_FONT == 1) //PCF21xxC or PCF21xxR font
+
+#elif (LCD_UTF8_FONT == 1) //UTF8 2 byte font (eg Cyrillic)
+ // Continue code above to close bracket...
+ } // if (value >= 0) {..
+#else
+
+#endif
+
} //else
//Set next memoryaddress, make sure cursor blinks at next location
@@ -341,21 +1609,135 @@
}
+#if ((LCD_C_FONT == 1) || (LCD_R_FONT == 1)) //PCF21xxC or PCF21xxR font
+/** Convert ASCII character code to the LCD fonttable code
+ *
+ * @param c The character to write to the display
+ * @return The character code for the specific fonttable of the controller
+ */
+int TextLCD_Base::ASCII_2_LCD (int c) {
+
+//LCD_C_F0 is default for HD44780 and compatible series
+// if (_font == LCD_C_F0) return c;
+
+//LCD_C_FC for PCF21XXC series
+//LCD_C_FR for PCF21XXR series
+//Used code from Suga koubou library for PCF2119K and PCF2119R
+ if (((c >= ' ') && (c <= '?')) || ((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z'))) {
+ c |= 0x80;
+ } else if (c >= 0xF0 && c <= 0xFF) {
+ c &= 0x0F;
+ }
+ return c;
+}
+#endif
+
+#if(LCD_UTF8_FONT == 1)
+
+/** Convert UTF8 2-byte character code to the LCD fonttable code
+ * @param c The character to write to the display
+ * @return character code for the specific fonttable of the controller or -1 if UTF8 code is not yet complete or incorrect
+ *
+ * Orig by Andriy, Modified by WH
+ *
+ * Note: The UTF8 decoding table for a specific controller is defined and selected in file TextLCD_UTF8.inc
+ * The table is accessed in this UTF_2_LCD() method through
+ * #define UTF_FIRST, UTF_LAST, UTF_SEQ_REC_FIRST, UTF_SEQ_REC_LAST and
+ * #define UTF_SEQ_RECODE and UTF_RND_RECODE
+ */
+int TextLCD_Base::UTF_2_LCD (int c) {
+ int utf_code;
+ int utf_low_byte; // Low byte UTF8
+ static int utf_hi_byte = 0; // High byte UTF8
+
+ if (c < 0x80) { // Regular ASCII code, no need to convert
+ return c;
+ }
+ else { // UTF8 handling, See wikipedia.org/wiki/UTF-8 and www.utf8-chartable.de
+// printf("0x%X ", c);
+
+ if (c >= 0xC0) { // First UTF8 byte should be formatted as 110b bbaa, Do sanity check
+ utf_hi_byte = c & 0x1F; // Mask out significant bits (0x1F) and save high byte
+ return -1; // Nothing to display as yet, wait for second UTF8 byte
+ }
+
+ if (c <= 0xBF) { // Second UTF8 byte should be formatted as 10aa aaaa, Do sanity check
+ utf_low_byte = c & 0x3F; // Mask out significant bits (0x3F)
+
+ // Compose UTF character code from UTF8 bytes. The UTF codes will be between U+0080 and U+07FF
+ utf_code = (utf_hi_byte << 6) | utf_low_byte; // 00000bbb aaaaaaaa
+// printf("0x%4X ", utf_code);
+
+ // Sanity check on UTF codes
+ // For example Cyrillic characters are UTF encoded between 0x0400 and 0x04FF
+ if ((utf_code < UTF_FIRST) || (utf_code > UTF_LAST)) {
+ return -1; // Invalid UTF8 code
+ };
+
+ //Map some specific UTF codes on a character in LCD fonttable using a special correcting lookup table
+ for (char i=0; UTF_RND_RECODE[i][0]; i++) { // Step through table until endvalue 0 is found or until a match is found
+ if (utf_code == UTF_RND_RECODE[i][0]) { // UTF8 code match is found
+ c = UTF_RND_RECODE[1][1];
+ return c; // found match in correcting random table
+ }
+ }
+
+ //Sanity check on table idx range
+ if ((utf_code < UTF_SEQ_REC_FIRST) || (utf_code > UTF_SEQ_REC_LAST)) {
+ return -1; // Invalid UTF8 code
+ };
+
+ //Map all other UTF codes on a character in LCD fonttable using a sequential lookup table
+ c = UTF_SEQ_RECODE[utf_code - UTF_SEQ_REC_FIRST];
+ return c; // entry in sequential table
+ }
+ else {
+ return -1; // Invalid UTF8 code for second byte
+ }
+ } // End UTF8 handling
+}
+
+#endif
+
+
+#if(LCD_PRINTF != 1)
+/** Write a character to the LCD
+ *
+ * @param c The character to write to the display
+ */
+int TextLCD_Base::putc(int c){
+ return _putc(c);
+}
+
+
+/** Write a raw string to the LCD
+ *
+ * @param string text, may be followed by variables to emulate formatting the string.
+ * However, printf formatting is NOT supported and variables will be ignored!
+ */
+int TextLCD_Base::printf(const char* text, ...) {
+
+ while (*text !=0) {
+ _putc(*text);
+ text++;
+ }
+ return 0;
+}
+#endif
+
+
// Write a nibble using the 4-bit interface
void TextLCD_Base::_writeNibble(int value) {
// Enable is Low
this->_setEnable(true);
- this->_setData(value & 0x0F); // Low nibble
+ this->_setData(value); // Low nibble of value on D4..D7
wait_us(1); // Data setup time
this->_setEnable(false);
wait_us(1); // Datahold time
-
// Enable is Low
-
}
-
// Write a byte using the 4-bit interface
void TextLCD_Base::_writeByte(int value) {
@@ -367,13 +1749,12 @@
wait_us(1); // Data hold time
this->_setEnable(true);
- this->_setData(value >> 0); // Low nibble
+ this->_setData(value); // Low nibble
wait_us(1); // Data setup time
this->_setEnable(false);
wait_us(1); // Datahold time
// Enable is Low
-
}
// Write a command byte to the LCD controller
@@ -397,158 +1778,106 @@
}
-#if (0)
-// This is the original _address() method.
+// This replaces the original _address() method.
// It is confusing since it returns the memoryaddress or-ed with the set memorycommand 0x80.
// Left it in here for compatibility with older code. New applications should use getAddress() instead.
-//
-int TextLCD_Base::_address(int column, int row) {
- switch (_type) {
- case LCD20x4:
- switch (row) {
- case 0:
- return 0x80 + column;
- case 1:
- return 0xc0 + column;
- case 2:
- return 0x94 + column;
- case 3:
- return 0xd4 + column;
- }
- case LCD16x2B:
- return 0x80 + (row * 40) + column;
- case LCD16x2:
- case LCD20x2:
- default:
- return 0x80 + (row * 0x40) + column;
- }
-}
-#endif
-
-
-// This replaces the original _address() method.
-// Left it in here for compatibility with older code. New applications should use getAddress() instead.
int TextLCD_Base::_address(int column, int row) {
return 0x80 | getAddress(column, row);
}
+
// This is new method to return the memory address based on row, column and displaytype.
//
+/** Return the memoryaddress of screen column and row location
+ *
+ * @param column The horizontal position from the left, indexed from 0
+ * @param row The vertical position from the top, indexed from 0
+ * @return The memoryaddress of screen column and row location
+ *
+ */
int TextLCD_Base::getAddress(int column, int row) {
- switch (_type) {
- case LCD8x1:
+ switch (_addr_mode) {
+
+ case LCD_T_A:
+ //Default addressing mode for 1, 2 and 4 rows (except 40x4)
+ //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.
+ //Displays top rows when less than four are used.
+ switch (row) {
+ case 0:
+ return 0x00 + column;
+ case 1:
+ return 0x40 + column;
+ case 2:
+ return 0x00 + _nr_cols + column;
+ case 3:
+ return 0x40 + _nr_cols + column;
+ // Should never get here.
+// default:
+// return 0x00;
+ }
+
+ case LCD_T_B:
+ // LCD8x2B is a special layout of LCD16x1
+ if (row==0)
return 0x00 + column;
-
- case LCD8x2B:
- // LCD8x2B is a special layout of LCD16x1
- if (row==0)
- return 0x00 + column;
- else
- return 0x08 + column;
-
- case LCD16x1:
- // LCD16x1 is a special layout of LCD8x2
- if (column<8)
- return 0x00 + column;
- else
- return 0x40 + (column - 8);
-
+ else
+// return _nr_cols + column;
+ return 0x08 + column;
+
+ case LCD_T_C:
+ // LCD16x1C is a special layout of LCD8x2
+ // LCD32x1C is a special layout of LCD16x2
+ // LCD40x1C is a special layout of LCD20x2
#if(0)
-// Special mode for ST7036
-// case LCD16x3:
-
-// Special mode for PCF2116 (and KS0078)
- case LCD12x3:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x20 + column;
- case 2:
- return 0x40 + column;
- }
-
-// Special mode for PCF2116 (and KS0078)
- case LCD12x4B:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x20 + column;
- case 2:
- return 0x40 + column;
- case 3:
- return 0x60 + column;
- }
-
+ if (column < 8)
+ return 0x00 + column;
+ else
+ return 0x40 + (column - 8);
+#else
+ if (column < (_nr_cols >> 1))
+ return 0x00 + column;
+ else
+ return 0x40 + (column - (_nr_cols >> 1));
#endif
- case LCD12x4:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x40 + column;
- case 2:
- return 0x0C + column;
- case 3:
- return 0x4C + column;
- }
-
- case LCD16x4:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x40 + column;
- case 2:
- return 0x10 + column;
- case 3:
- return 0x50 + column;
+ case LCD_T_D:
+ //Alternate addressing mode for 3 and 4 row displays (except 40x4). Used by PCF21XX, KS0073, KS0078, SSD1803
+ //The 4 available rows start at a hardcoded address.
+ //Displays top rows when less than four are used.
+ switch (row) {
+ case 0:
+ return 0x00 + column;
+ case 1:
+ return 0x20 + column;
+ case 2:
+ return 0x40 + column;
+ case 3:
+ return 0x60 + column;
+ // Should never get here.
+// default:
+// return 0x00;
}
- case LCD20x4:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x40 + column;
- case 2:
- return 0x14 + column;
- case 3:
- return 0x54 + column;
+ case LCD_T_D1:
+ //Alternate addressing mode for 3 row displays. Used by PCF21XX, KS0073, KS0078, SSD1803
+ //The 4 available rows start at a hardcoded address.
+ //Skips top row of 4 row display and starts display at row 1
+ switch (row) {
+ case 0:
+ return 0x20 + column;
+ case 1:
+ return 0x40 + column;
+ case 2:
+ return 0x60 + column;
+ // Should never get here.
+// default:
+// return 0x00;
}
-
-// Special mode for KS0078
- case LCD24x4:
- switch (row) {
- case 0:
- return 0x00 + column;
- case 1:
- return 0x20 + column;
- case 2:
- return 0x40 + column;
- case 3:
- return 0x60 + column;
- }
-
-// Not sure about this one, seems wrong.
-// Left in for compatibility with original library
- case LCD16x2B:
- return 0x00 + (row * 40) + column;
-
- case LCD8x2:
- case LCD12x2:
- case LCD16x2:
- case LCD20x2:
- case LCD24x2:
- case LCD40x2:
- return 0x00 + (row * 0x40) + column;
-
- case LCD40x4:
- // LCD40x4 is a special case since it has 2 controllers
- // Each controller is configured as 40x2
+
+ case LCD_T_E:
+ // LCD40x4 is a special case since it has 2 controllers.
+ // Each controller is configured as 40x2 (Type A)
if (row<2) {
// Test to see if we need to switch between controllers
if (_ctrl_idx != _LCDCtrl_0) {
@@ -582,31 +1911,67 @@
return 0x00 + ((row-2) * 0x40) + column;
}
-// Should never get here.
+ case LCD_T_F:
+ //Alternate addressing mode for 3 row displays.
+ //The first half of 3rd row continues from 1st row, the second half continues from 2nd row.
+ switch (row) {
+ case 0:
+ return 0x00 + column;
+ case 1:
+ return 0x40 + column;
+ case 2:
+ if (column < (_nr_cols >> 1)) // check first or second half of line
+ return (0x00 + _nr_cols + column);
+ else
+ return (0x40 + _nr_cols + (column - (_nr_cols >> 1)));
+ // Should never get here.
+// default:
+// return 0x00;
+ }
+
+ case LCD_T_G:
+ //Alternate addressing mode for 3 row displays. Used by ST7036
+ switch (row) {
+ case 0:
+ return 0x00 + column;
+ case 1:
+ return 0x10 + column;
+ case 2:
+ return 0x20 + column;
+ // Should never get here.
+// default:
+// return 0x00;
+ }
+
+ // Should never get here.
default:
return 0x00;
- }
+
+ } // switch _addr_mode
}
-// Set row, column and update memoryaddress.
-//
+/** Set the memoryaddress of screen column and row location
+ *
+ * @param column The horizontal position from the left, indexed from 0
+ * @param row The vertical position from the top, indexed from 0
+ */
void TextLCD_Base::setAddress(int column, int row) {
// Sanity Check column
if (column < 0) {
_column = 0;
}
- else if (column >= columns()) {
- _column = columns() - 1;
+ else if (column >= _nr_cols) {
+ _column = _nr_cols - 1;
} else _column = column;
// Sanity Check row
if (row < 0) {
_row = 0;
}
- else if (row >= rows()) {
- _row = rows() - 1;
+ else if (row >= _nr_rows) {
+ _row = _nr_rows - 1;
} else _row = row;
@@ -618,96 +1983,56 @@
_writeCommand(0x80 | addr);
}
+
+/** Return the number of columns
+ *
+ * @return The number of columns
+ *
+ * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
+ */
int TextLCD_Base::columns() {
- switch (_type) {
- case LCD8x1:
- case LCD8x2:
- case LCD8x2B:
- return 8;
-
- case LCD12x2:
-// case LCD12x3:
- case LCD12x4:
-// case LCD12x4B:
- return 12;
-
- case LCD16x1:
- case LCD16x2:
- case LCD16x2B:
-// case LCD16x3:
- case LCD16x4:
- return 16;
-
- case LCD20x2:
- case LCD20x4:
- return 20;
-
- case LCD24x2:
- case LCD24x4:
- return 24;
-
- case LCD40x2:
- case LCD40x4:
- return 40;
-
-// Should never get here.
- default:
- return 0;
- }
+
+ // Columns encoded in b7..b0
+ //return (_type & 0xFF);
+ return _nr_cols;
}
+/** Return the number of rows
+ *
+ * @return The number of rows
+ *
+ * Note: some configurations are commented out because they have not yet been tested due to lack of hardware
+ */
int TextLCD_Base::rows() {
- switch (_type) {
- case LCD8x1:
- case LCD16x1:
- return 1;
-
- case LCD8x2:
- case LCD8x2B:
- case LCD12x2:
- case LCD16x2:
- case LCD16x2B:
- case LCD20x2:
- case LCD24x2:
- case LCD40x2:
- return 2;
-
-// case LCD12x3:
-// case LCD16x3:
-// return 3;
-
- case LCD12x4:
-// case LCD12x4B:
- case LCD16x4:
- case LCD20x4:
- case LCD24x4:
- case LCD40x4:
- return 4;
-
-// Should never get here.
- default:
- return 0;
- }
+
+ // Rows encoded in b15..b8
+ //return ((_type >> 8) & 0xFF);
+ return _nr_rows;
}
-
-// Set the Cursor Mode (Cursor Off & Blink Off, Cursor On & Blink Off, Cursor Off & Blink On, Cursor On & Blink On
+/** Set the Cursormode
+ *
+ * @param cursorMode The Cursor mode (CurOff_BlkOff, CurOn_BlkOff, CurOff_BlkOn, CurOn_BlkOn)
+ */
void TextLCD_Base::setCursor(LCDCursor cursorMode) {
// Save new cursor mode, needed when 2 controllers are in use or when display is switched off/on
_currentCursor = cursorMode;
// Configure only current LCD controller
- _setCursorAndDisplayMode(_currentMode, _currentCursor);
-
+ _setCursorAndDisplayMode(_currentMode, _currentCursor);
}
-// Set the Displaymode (On/Off)
+/** Set the Displaymode
+ *
+ * @param displayMode The Display mode (DispOff, DispOn)
+ */
void TextLCD_Base::setMode(LCDMode displayMode) {
// Save new displayMode, needed when 2 controllers are in use or when cursor is changed
_currentMode = displayMode;
-
+
+#if (LCD_TWO_CTRL == 1)
// Select and configure second LCD controller when needed
if(_type==LCD40x4) {
if (_ctrl_idx==_LCDCtrl_0) {
@@ -735,38 +2060,68 @@
// Configure secondary LCD controller
_setCursorAndDisplayMode(_currentMode, _currentCursor);
-
}
}
else {
// Configure primary LCD controller
_setCursorAndDisplayMode(_currentMode, _currentCursor);
- }
-
+ }
+#else
+ // Support only one LCD controller
+ _setCursorAndDisplayMode(_currentMode, _currentCursor);
+
+#endif
}
-
-// Set the Displaymode (On/Off) and Cursortype for current controller
-void TextLCD_Base::_setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType) {
-
- // Configure current LCD controller
- _writeCommand(0x08 | displayMode | cursorType);
+/** Low level method to restore the cursortype and display mode for current controller
+ */
+void TextLCD_Base::_setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType) {
+
+ // Configure current LCD controller
+ switch (_ctrl) {
+ case ST7070:
+ //ST7070 does not support Cursorblink. The P bit selects the font instead !
+ _writeCommand(0x08 | displayMode | (cursorType & 0x02));
+ break;
+ default:
+ _writeCommand(0x08 | displayMode | cursorType);
+ break;
+ } //switch
}
-// Set the Backlight mode (Off/On)
+/** Set the Backlight mode
+ *
+ * @param backlightMode The Backlight mode (LightOff, LightOn)
+ */
void TextLCD_Base::setBacklight(LCDBacklight backlightMode) {
+#if (BACKLIGHT_INV==0)
+ // Positive Backlight control pin logic
if (backlightMode == LightOn) {
- this->_setBL(true);
+ this->_setBL(true);
}
else {
this->_setBL(false);
}
+#else
+ // Inverted Backlight control pin logic
+ if (backlightMode == LightOn) {
+ this->_setBL(false);
+ }
+ else {
+ this->_setBL(true);
+ }
+#endif
}
-
+/** Set User Defined Characters
+ *
+ * @param unsigned char c The Index of the UDC (0..7) for HD44780 or clones and (0..15) for some more advanced controllers
+ * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits for bitpattern and 3 bits for blinkmode (advanced types))
+ */
void TextLCD_Base::setUDC(unsigned char c, char *udc_data) {
-
+
+#if (LCD_TWO_CTRL == 1)
// Select and configure second LCD controller when needed
if(_type==LCD40x4) {
_LCDCtrl_Idx current_ctrl_idx = _ctrl_idx; // Temp save current controller
@@ -789,43 +2144,948 @@
else {
// Configure primary LCD controller
_setUDC(c, udc_data);
- }
-
+ }
+#else
+ // Support only one LCD controller
+ _setUDC(c, udc_data);
+#endif
}
+/** Low level method to store user defined characters for current controller
+ *
+ * @param unsigned char c The Index of the UDC (0..7) for HD44780 clones and (0..15) for some more advanced controllers
+ * @param char *udc_data The bitpatterns for the UDC (8 bytes of 5 significant bits for bitpattern and 3 bits for blinkmode (advanced types))
+ */
void TextLCD_Base::_setUDC(unsigned char c, char *udc_data) {
+ switch (_ctrl) {
+ case PCF2103_3V3 : // Some UDCs may be used for Icons
+ case PCF2113_3V3 : // Some UDCs may be used for Icons
+ case PCF2116_3V3 :
+ case PCF2116_5V :
+ case PCF2119_3V3 : // Some UDCs may be used for Icons
+ case PCF2119R_3V3: // Some UDCs may be used for Icons
+ c = c & 0x0F; // mask down to valid range
+ break;
+
+ default:
+ c = c & 0x07; // mask down to valid range
+ break;
+ } //switch _ctrl
+
+ // Select DD RAM for current LCD controller
+ // This is needed to correctly set Bit 6 of the addresspointer for controllers that support 16 UDCs
+ _writeCommand(0x80 | ((c << 3) & 0x40)) ;
+
// Select CG RAM for current LCD controller
- _writeCommand(0x40 + ((c & 0x07) << 3)); //Set CG-RAM address,
+ _writeCommand(0x40 | ((c << 3) & 0x3F)); //Set CG-RAM address, (note that Bit 6 is retained and can not be set by this command !)
//8 sequential locations needed per UDC
// Store UDC pattern
for (int i=0; i<8; i++) {
_writeData(*udc_data++);
}
- //Select DD RAM again for current LCD controller
+ //Select DD RAM again for current LCD controller and restore the addresspointer
+ int addr = getAddress(_column, _row);
+ _writeCommand(0x80 | addr);
+}
+
+#if(LCD_BLINK == 1)
+/** Set UDC Blink and Icon blink
+ * setUDCBlink method is supported by some compatible devices (eg SSD1803)
+ *
+ * @param blinkMode The Blink mode (BlinkOff, BlinkOn)
+ */
+void TextLCD_Base::setUDCBlink(LCDBlink blinkMode){
+ // Blinking UDCs (and icons) are enabled when a specific controlbit (BE) is set.
+ // The blinking pixels in the UDC and icons can be controlled by setting additional bits in the UDC or icon bitpattern.
+ // UDCs are defined by an 8 byte bitpattern. The P0..P4 form the character pattern.
+ // P7 P6 P5 P4 P3 P2 P1 P0
+ // 0 B1 B0 x 0 1 1 1 0
+ // 1 B1 B0 x 1 0 0 0 1
+ // .............
+ // 7 B1 B0 x 1 0 0 0 1
+ //
+ // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
+ // B1 B0 Mode
+ // 0 0 No Blinking in this row of the UDC
+ // 0 1 Enabled pixels in P4 will blink
+ // 1 x Enabled pixels in P0..P4 will blink
+ //
+ // Note: the PCF2103 and PCF2113 use UDCs to set Icons
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
+ // Note: the PCF2119 uses UDCs to set Icons
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
+ switch (blinkMode) {
+ case BlinkOn:
+ // Controllers that support UDC/Icon Blink
+ switch (_ctrl) {
+ case KS0073 :
+ case KS0078 :
+ case HD66712 :
+ _function_1 |= 0x02; // Enable UDC/Icon Blink
+ _writeCommand(0x20 | _function_1); // Function set 0 0 1 DL N RE(1) BE 0/LP (Ext Regs)
+
+ _writeCommand(0x20 | _function); // Function set 0 0 1 DL N RE(0) DH REV (Std Regs)
+ break; // case KS0073, KS0078, HD66712 Controller
+
+ case US2066_3V3 :
+ case SSD1803_3V3 :
+ _function_1 |= 0x04; // Enable UDC/Icon Blink
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
+ // Select Ext Instr Set
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // case SSD1803, US2066
+
+ case PCF2103_3V3 :
+ case PCF2113_3V3 :
+ case PCF2119_3V3 :
+ case PCF2119R_3V3 :
+ // Enable Icon Blink
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x08 | 0x02); // ICON Conf 0000 1, IM=0 (Char mode), IB=1 (Icon blink), 0 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } //switch _ctrl
+
+ break; // BlinkOn
+
+ case BlinkOff:
+ // Controllers that support UDC Blink
+ switch (_ctrl) {
+ case KS0073 :
+ case KS0078 :
+ case HD66712:
+ _function_1 &= ~0x02; // Disable UDC/Icon Blink
+ _writeCommand(0x20 | _function_1); // Function set 0 0 1 DL N RE(1) BE 0/LP (Ext Regs)
+
+ _writeCommand(0x20 | _function); // Function set 0 0 1 DL N RE(0) DH REV (Std Regs)
+ break; // case KS0073, KS0078, HD66712 Controller
+
+ case US2066_3V3 :
+ case SSD1803_3V3 :
+ _function_1 &= ~0x04; // Disable UDC/Icon Blink
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
+ // Select Ext Instr Set
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // case SSD1803, US2066
+
+ case PCF2103_3V3 :
+ case PCF2113_3V3 :
+ case PCF2119_3V3 :
+ case PCF2119R_3V3 :
+ // Disable Icon Blink
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x08); // ICON Conf 0000 1, IM=0 (Char mode), IB=1 (Icon blink), 0 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } //switch _ctrl
+
+ break; //BlinkOff
+
+ default:
+ break;
+ } // blinkMode
+
+} // setUDCBlink()
+#endif
+
+#if(LCD_CONTRAST == 1)
+/** Set Contrast
+ * setContrast method is supported by some compatible devices (eg ST7032i) that have onboard LCD voltage generation
+ * Initial code for ST70XX imported from fork by JH1PJL
+ *
+ * @param unsigned char c contrast data (6 significant bits, valid range 0..63, Value 0 will disable the Vgen)
+ * @return none
+ */
+//@TODO Add support for 40x4 dual controller
+void TextLCD_Base::setContrast(unsigned char c) {
+
+// Function set mode stored during Init. Make sure we dont accidentally switch between 1-line and 2-line mode!
+// Icon/Booster mode stored during Init. Make sure we dont accidentally change this!
+
+ _contrast = c & 0x3F; // Sanity check
+
+ switch (_ctrl) {
+ case PCF2113_3V3 :
+ case PCF2119_3V3 :
+ case PCF2119R_3V3 :
+ if (_contrast < 5) _contrast = 0; // See datasheet. Sanity check for PCF2113/PCF2119
+ if (_contrast > 55) _contrast = 55;
+
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instruction Set = 1
+ _writeCommand(0x80 | 0x00 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=0, VA=contrast
+ _writeCommand(0x80 | 0x40 | (_contrast & 0x3F)); // VLCD_set (Instr. Set 1) V=1, VB=contrast
+ _writeCommand(0x20 | _function); // Select Instruction Set = 0
+ break;
+
+ case ST7032_3V3 :
+ case ST7032_5V :
+ case ST7036_3V3 :
+// case ST7036_5V :
+ case SSD1803_3V3 :
+ case SPLC792A_3V3 :
+ _writeCommand(0x20 | _function | 0x01); // Select Instruction Set = 1
+ _writeCommand(0x70 | (_contrast & 0x0F)); // Contrast Low bits
+ _writeCommand(0x50 | _icon_power | ((_contrast >> 4) & 0x03)); // Contrast High bits
+ _writeCommand(0x20 | _function); // Select Instruction Set = 0
+ break;
+
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N BE RE(1) REV
+ // Select Extended Instruction Set
+
+ _writeCommand(0x79); // Function Select OLED: 0 1 1 1 1 0 0 1 (Ext Instr Set)
+
+ _writeCommand(0x81); // Set Contrast Control: 1 0 0 0 0 0 0 1 (Ext Instr Set, OLED)
+ _writeCommand((_contrast << 2) | 0x03); // Set Contrast Value: 8 bits. Use 6 bits for compatibility
+
+ _writeCommand(0x78); // Function Disable OLED: 0 1 1 1 1 0 0 0 (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break;
+
+ //not yet tested on hardware
+ case PT6314 :
+ // Only 2 significant bits
+ // 0x00 = 100%
+ // 0x01 = 75%
+ // 0x02 = 50%
+ // 0x03 = 25%
+ _writeCommand(0x20 | _function | ((~_contrast) >> 4)); // Invert and shift to use 2 MSBs
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } // end switch
+} // end setContrast()
+#endif
+
+#if(LCD_POWER == 1)
+/** Set Power
+ * setPower method is supported by some compatible devices (eg SSD1803) that have power down modes
+ *
+ * @param bool powerOn Power on/off
+ * @return none
+ */
+//@TODO Add support for 40x4 dual controller
+void TextLCD_Base::setPower(bool powerOn) {
+
+ if (powerOn) {
+ // Switch on
+ setMode(DispOn);
+
+ // Controllers that supports specific Power Down mode
+ switch (_ctrl) {
+
+// case PCF2113_3V3 :
+// case PCF2119_3V3 :
+// case PCF2119R_3V3 :
+// case ST7032_3V3 :
+//@todo
+// enable Booster Bon
+
+ case WS0010:
+ _writeCommand(0x17); // Char mode, DC/DC on
+ WAIT_MS(10); // Wait 10ms to ensure powered up
+ break;
+
+ case KS0073:
+ case KS0078:
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ _writeCommand(0x20 | _function_1); // Select Ext Instr Set
+ _writeCommand(0x02); // Power On
+ _writeCommand(0x20 | _function); // Select Std Instr Set
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } // end switch
+ }
+ else {
+ // Switch off
+ setMode(DispOff);
+
+ // Controllers that support specific Power Down mode
+ switch (_ctrl) {
+
+// case PCF2113_3V3 :
+// case PCF2119_3V3 :
+// case PCF2119R_3V3 :
+// case ST7032_3V3 :
+//@todo
+// disable Booster Bon
+
+ case WS0010:
+ _writeCommand(0x13); // Char mode, DC/DC off
+ break;
+
+ case KS0073:
+ case KS0078:
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ _writeCommand(0x20 | _function_1); // Select Ext Instr Set
+ _writeCommand(0x03); // Power Down
+ _writeCommand(0x20 | _function); // Select Std Instr Set
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } // end switch
+ }
+} // end setPower()
+#endif
+
+#if(LCD_ORIENT == 1)
+/** Set Orient
+ * setOrient method is supported by some compatible devices (eg SSD1803, US2066) that have top/bottom view modes
+ *
+ * @param LCDOrient orient Orientation
+ * @return none
+ */
+void TextLCD_Base::setOrient(LCDOrient orient){
+
+ switch (orient) {
+
+ case Top:
+ switch (_ctrl) {
+ case PCF2103_3V3:
+ case PCF2116_3V3:
+ case PCF2116_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x05); // Display Conf Set 0000 0, 1, P=0, Q=1 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+ break;
+
+ case PCF2119_3V3:
+ case PCF2119R_3V3:
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x07); // Display Conf Set 0000 0, 1, P=1, Q=1 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+ break;
+
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+// _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
+ _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break;
+
+ case ST7070:
+ _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL, N, EXT=1, x, x (Select Instr Set = 1)
+
+ _writeCommand(0x40 | 0x00); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
+ // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
+ // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
+ WAIT_MS(5); // Wait to ensure completion or ST7070 fails to set Top/Bottom after reset..
+
+ _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
+
+ break; // case ST7070 Controller
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+
+ } // end switch _ctrl
+ break; // end Top
+
+ case Bottom:
+ switch (_ctrl) {
+ case PCF2103_3V3:
+ case PCF2116_3V3:
+ case PCF2116_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x06); // Display Conf Set 0000 0, 1, P=1, Q=0 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+ break;
+
+ case PCF2119_3V3:
+ case PCF2119R_3V3 :
+ _writeCommand(0x20 | _function | 0x01); // Set function, Select Instr Set = 1
+ _writeCommand(0x04); // Display Conf Set 0000 0, 1, P=0, Q=0 (Instr. Set 1)
+ _writeCommand(0x20 | _function); // Set function, Select Instr Set = 0
+ break;
+
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x06); // Set ext entry mode, 0 0 0 0 0 1 BDC=1 COM1-32, BDS=0 SEG100-1 "Bottom View" (Ext Instr Set)
+// _writeCommand(0x05); // Set ext entry mode, 0 0 0 0 0 1 BDC=0 COM32-1, BDS=1 SEG1-100 "Top View" (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break;
+
+ case ST7070:
+ //Note: this does not result in correct top/bottom view.
+ //The left and right half of each row are reversed and the addressing of both rows is also incorrect:
+ //Top/bottomline when orientation is flipped:
+ // 0x48...0x4F 0x40...0x47
+ // 0x08...0x0F 0x00...0x07
+ _writeCommand(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1)
+
+ _writeCommand(0x40 | 0x0F); // COM/SEG directions 0 1 0 0 C1, C2, S1, S2 (Instr Set 1)
+ // C1=1: Com1-8 -> Com8-1; C2=1: Com9-16 -> Com16-9
+ // S1=1: Seg1-40 -> Seg40-1; S2=1: Seg41-80 -> Seg80-41
+ WAIT_MS(5); // Wait to ensure completion or ST7070 fails to set Top/Bottom after reset..
+
+ _writeCommand(0x20 | _function); // Set function, EXT=0 (Select Instr Set = 0)
+
+ break; // case ST7070 Controller
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+
+ } // end switch _ctrl
+
+ break; // end Bottom
+ } // end switch orient
+} // end setOrient()
+#endif
+
+#if(LCD_BIGFONT == 1)
+/** Set Big Font
+ * setBigFont method is supported by some compatible devices (eg SSD1803, US2066)
+ *
+ * @param lines The selected Big Font lines (None, TopLine, CenterLine, BottomLine, TopBottomLine)
+ * Double height characters can be shown on lines 1+2, 2+3, 3+4 or 1+2 and 3+4
+ * Valid double height lines depend on the LCDs number of rows.
+ */
+void TextLCD_Base::setBigFont(LCDBigFont lines) {
+
+ switch (lines) {
+ case None:
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
+ // Default
+ _function = _function & ~0x04; // Set function, 0 0 1 DL N DH=0 RE(0) IS=0 Select Instruction Set 0
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end US2066
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end None
+
+ case TopLine:
+ if (_nr_rows < 2) return; //Sanity check
+
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x1C); // Double Height, 0 0 0 1 UD2=1, UD1=1, X, DH'=0 (Ext Instr Set)
+ // Default
+ _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end US2066, SSD1803
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end TopLine
+
+ case CenterLine:
+ if (_nr_rows != 4) return; //Sanity check
+
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x14); // Double Height, 0 0 0 1 UD2=0, UD1=1, X, DH'=0 (Ext Instr Set)
+ // Default
+ _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end US2066, SSD1803
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end CenterLine
+
+ case BottomLine:
+ if (_nr_rows < 3) return; //Sanity check
+
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ if (_nr_rows == 3) {
+ _writeCommand(0x14); // Double Height, 0 0 0 1 UD2=0, UD1=1, X, DH'=0 (Ext Instr Set)
+ }
+ else {
+ _writeCommand(0x10); // Double Height, 0 0 0 1 UD2=0, UD1=0, X, DH'=0 (Ext Instr Set)
+ }
+ _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end US2066, SSD1803
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end BottomLine
+
+ case TopBottomLine:
+ if (_nr_rows != 4) return; //Sanity check
+
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x18); // Double Height, 0 0 0 1 UD2=1, UD1=0, X, DH'=0 (Ext Instr Set)
+ // Default
+ _function = _function | 0x04; // Set function, 0 0 1 DL N DH=1 RE(0) IS=0 Select Instruction Set 0
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS=0 Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end US2066, SSD1803
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end TopBottomLine
+
+ } // end switch lines
+
+} // end setBigFont()
+#endif
+
+
+#if (LCD_FONTSEL == 1)
+/** Set Font
+ * setFont method is supported by some compatible devices (eg SSD1803, US2066, ST7070)
+ *
+ * @param LCDFont font The selected Font
+ * @return none
+ *
+ * Note: most controllers support only one font and the hardware specific
+ * fonttable is encoded as part of the controller type number (eg PCF21XXC or PCF21XXR).
+ * Some controllers support multiple tables that can only be selected by logic levels on a few pins.
+ * Some controllers also support runtime fontable switching through a specific instruction
+ */
+void TextLCD_Base::setFont(LCDFont font) {
+
+ switch (font) {
+ case Font_RA: // UK/EU
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x72); // ROM Select command, 0 1 1 1 0 0 1 0 (Ext Instr Set)
+ _writeData(0x00); // ROM_0 Select data, 0 0 0 0 ROM2 ROM1 0 0 (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS (Std Instr Set)
+
+ _font = font; // Save active font
+ break; // end SSD1803, US2066
+
+ case ST7070:
+ //ST7070 does not support Cursorblink. The P bit selects the font instead !
+ _writeCommand(0x08 | _currentMode | (_currentCursor & 0x02));
+
+ _font = font; // Save active font
+ break; // end ST7070
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end Font_RA
+
+ case Font_RB: // UK/CYR
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x72); // ROM Select command, 0 1 1 1 0 0 1 0 (Ext Instr Set)
+ _writeData(0x04); // ROM_0 Select data, 0 0 0 0 ROM2 ROM1 0 0 (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS (Std Instr Set)
+
+ _font = font; // Save active font
+ break; // end SSD1803, US2066
+
+ case ST7070:
+ //ST7070 does not support Cursorblink. The P bit selects the font instead !
+ _writeCommand(0x08 | _currentMode | (_currentCursor & 0x02) | 0x01);
+
+ _font = font; // Save active font
+ break; // end ST7070
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end Font_RB
+
+ case Font_0: //Font_O is pretty similar to ROM_C
+ case Font_RC: // UK/JAP
+ switch (_ctrl) {
+ case SSD1803_3V3 :
+ case US2066_3V3 :
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 X N BE RE(1) REV
+ // Select Extended Instruction Set
+ _writeCommand(0x72); // ROM Select command, 0 1 1 1 0 0 1 0 (Ext Instr Set)
+ _writeData(0x08); // ROM_0 Select data, 0 0 0 0 ROM2 ROM1 0 0 (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS (Std Instr Set)
+
+ _font = font; // Save active font
+ break; // end SSD1803, US2066
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+ break; // end Font_RC
+ } // end switch font
+
+ //SSD1803 seems to screw up cursor position after selecting new font. Restore to make sure...
+ //Set next memoryaddress, make sure cursor blinks at next location
int addr = getAddress(_column, _row);
_writeCommand(0x80 | addr);
-
+
}
-
-// JH1PJL from here ->
-void TextLCD_Base::setContrast(unsigned char c) {
-
- if (_ctrl == ST7032_3V3){
- _writeCommand(0x39);
- _writeCommand(0x70 | (c & 0x0f)); // contrast Low
- _writeCommand(0x5C | ((c >> 4) & 0x03)); // contast High/icon/power
- _writeCommand(0x38);
- }
-
-}
-// JH1PJL <- to here
+#endif
+
+
+#if(LCD_ICON==1)
+/** Set Icons
+ *
+ * @param unsigned char idx The Index of the icon pattern (0..15) for KS0073 and similar controllers
+ * and Index (0..31) for PCF2103 and similar controllers
+ * @param unsigned char data The bitpattern for the icons (6 lsb for KS0073 bitpattern (5 lsb for KS0078) and 2 msb for blinkmode)
+ * The bitpattern for the PCF2103 icons is 5 lsb (UDC 0..2) and 5 lsb for blinkmode (UDC 4..6)
+ */
+void TextLCD_Base::setIcon(unsigned char idx, unsigned char data) {
+ // Blinking icons are enabled when a specific controlbit (BE) is set.
+ // The blinking pixels in the icons can be controlled by setting additional bits in the icon bitpattern.
+ // Icons are defined by a byte bitpattern. The P0..P5 form the Icon pattern for KS0073, and P0..P4 for KS0078
+ // P7 P6 P5 P4 P3 P2 P1 P0
+ // 0 B1 B0 0 0 1 1 1 0
+ // 1 B1 B0 1 1 0 0 0 1
+ // .............
+ // 15 B1 B0 1 1 0 0 0 1
+ //
+ // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
+ // B1 B0 Mode
+ // 0 0 No Blinking for this icon row
+ // 0 1 Enabled pixels in P5 will blink
+ // 1 x Enabled pixels in P0..P5 will blink
+ //
+ // Note: the PCF2103 and PCF2113 use UDCs to set Icons
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
+ // Note: the PCF2119 uses UDCs to set Icons
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
+
+ switch (_ctrl) {
+ case KS0073:
+ case KS0078:
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N RE(1) BE LP
+ // Select Extended Instruction Set
+ _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Ext Instr Set)
+
+ _writeData(data); // Set Icon pattern (Ext Instr Set)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end KS0073, KS0078
+
+ case ST7032_3V3:
+ case ST7032_5V:
+ case SPLC792A_3V3:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
+ _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set 1)
+
+ _writeData(data & 0x1F); // Set Icon pattern, no blink support (Instr Set 1)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end ST7032
+
+ case ST7036_3V3:
+ case ST7036_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH IS2,IS1 = 01 (Select Instr Set = 1)
+ _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set 1)
+
+ _writeData(data & 0x1F); // Set Icon pattern, no blink support (Instr Set 1)
+
+ _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instr Set = 0)
+ // Select Std Instr set, Select IS=0
+ break; // end ST7036
+
+ case SSD1803_3V3:
+// case SSD1803_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS
+ // Select Instruction Set 1
+ _writeCommand(0x40 | (idx & 0x0F)); // Set Icon Address, mask Address to valid range (Instr Set = 1)
+ _writeData(data); // Set Icon pattern (Instr Set = 1)
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS
+ // Select IS=0
+ break; // end SSD1803
+
+ case PCF2103_3V3:
+ case PCF2113_3V3:
+ case PCF2119_3V3:
+ case PCF2119R_3V3:
+ // Store UDC/Icon pattern for PCF2103 and PCF2113:
+ // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
+ // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
+ // Store UDC/Icon pattern for PCF2119:
+ // 4 x 8 rows x 5 bits = 160 bits for Normal pattern (UDC 0..3) and
+ // 4 x 8 rows x 5 bits = 160 bits for Blink pattern (UDC 4..7)
+ _writeCommand(0x40 | (idx & 0x3F)); //Set CG-RAM address, 8 sequential locations needed per UDC
+ _writeData(data); // Set Icon pattern (Instr Set = 1)
+ break; // case PCF2103_3V3 Controller
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+
+ //Select DD RAM again for current LCD controller and restore the addresspointer
+ int addr = getAddress(_column, _row);
+ _writeCommand(0x80 | addr);
+
+} // end setIcon()
+
+/** Clear Icons
+ *
+ * @param none
+ * @return none
+ */
+ //@TODO Add support for 40x4 dual controller
+void TextLCD_Base::clrIcon() {
+ // Icons are defined by a byte bitpattern. The P0..P5 form the Icon pattern for KS0073, and P0..P4 for KS0078
+ // P7 P6 P5 P4 P3 P2 P1 P0
+ // 0 B1 B0 0 0 0 0 0 0
+ // 1 B1 B0 0 0 0 0 0 0
+ // .............
+ // 15 B1 B0 0 0 0 0 0 0
+ //
+ // Bit 6 and Bit 7 in the pattern will control the blinking mode when Blink is enabled through BE.
+ // B1 B0 Mode
+ // 0 0 No Blinking for this icon row
+ // 0 1 Enabled pixels in P5 will blink
+ // 1 x Enabled pixels in P0..P5 will blink
+ //
+ // Note: the PCF2103 and PCF2113 use UDCs to set Icons
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Normal pattern (UDC 0..2) and
+ // 3 x 8 rows x 5 bits = 120 bits Icons for Blink pattern (UDC 4..6)
+ // Note: the PCF2119 uses UDCs to set Icons
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Normal pattern (UDC 0..3) and
+ // 4 x 8 rows x 5 bits = 160 bits Icons for Blink pattern (UDC 4..7)
+ int idx;
+
+ switch (_ctrl) {
+ case KS0073:
+ case KS0078:
+ _writeCommand(0x20 | _function_1); // Set function, 0 0 1 DL N RE(1) BE LP
+ // Select Extended Instruction Set
+ for (idx=0; idx<16; idx++) {
+ _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Ext Instr Set)
+ _writeData(0x00); // Clear Icon pattern (Ext Instr Set)
+ }
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Std Instruction Set
+ // Select Std Instr set
+ break; // end KS0073, KS0078
+
+ case ST7032_3V3:
+ case ST7032_5V:
+ case SPLC792A_3V3:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N F 0 IS=1 Select Instr Set = 1
+
+ for (idx=0; idx<16; idx++) {
+ _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Instr Set 1)
+ _writeData(0x00); // Clear Icon pattern (Instr Set 1)
+ }
+
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N RE(0) DH REV Select Instruction Set 0
+ // Select Std Instr set, Select IS=0
+ break; // end ST7032
+
+ case ST7036_3V3:
+ case ST7036_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH IS2,IS1 = 01 (Select Instr Set = 1)
+
+ for (idx=0; idx<16; idx++) {
+ _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Instr Set 1)
+ _writeData(0x00); // Clear Icon pattern (Instr Set 1)
+ }
+
+ _writeCommand(0x20 | _function); // Set function, IS2,IS1 = 00 (Select Instr Set = 0)
+ // Select Std Instr set, Select IS=0
+ break; // end ST7036
+
+ case SSD1803_3V3:
+// case SSD1803_5V:
+ _writeCommand(0x20 | _function | 0x01); // Set function, 0 0 1 DL N DH RE(0) IS
+ // Select Instruction Set 1
+ for (idx=0; idx<16; idx++) {
+ _writeCommand(0x40 | idx); // Set Icon Address, mask Address to valid range (Ext Instr Set)
+ _writeData(0x00); // Clear Icon pattern (Ext Instr Set)
+ }
+ _writeCommand(0x20 | _function); // Set function, 0 0 1 DL N DH RE(0) IS
+ // Select IS=0
+ break; // end SSD1803
+
+ case PCF2103_3V3:
+ case PCF2113_3V3:
+ // PCF2103 and PCF2113 use part of the UDC RAM to control Icons
+ // Select CG RAM
+
+ _writeCommand(0x40 | (0 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
+ // Store UDC/Icon pattern:
+ // 3 x 8 rows x 5 bits = 120 bits for Normal pattern (UDC 0..2) and
+ for (int i=0; i<(3 * 8); i++) {
+// _writeData(0x1F); // All On
+ _writeData(0x00); // All Off
+ }
+
+ _writeCommand(0x40 | (4 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
+ // 3 x 8 rows x 5 bits = 120 bits for Blink pattern (UDC 4..6)
+ for (int i=0; i<(3 * 8); i++) {
+// _writeData(0x1F); // All On
+ _writeData(0x00); // All Off
+ }
+ break; // case PCF2103_3V3 Controller
+
+ case PCF2119_3V3:
+ case PCF2119R_3V3:
+ // PCF2119 uses part of the UDC RAM to control Icons
+ // Select CG RAM
+
+ _writeCommand(0x40 | (0 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
+ // Store UDC/Icon pattern:
+ // 4 x 8 rows x 5 bits = 160 bits for Normal pattern (UDC 0..3) and
+ for (int i=0; i<(4 * 8); i++) {
+// _writeData(0x1F); // All On
+ _writeData(0x00); // All Off
+ }
+
+ _writeCommand(0x40 | (4 * 8)); //Set CG-RAM address, 8 sequential locations needed per UDC
+ // 4 x 8 rows x 5 bits = 160 bits for Blink pattern (UDC 4..7)
+ for (int i=0; i<(4 * 8); i++) {
+// _writeData(0x1F); // All On
+ _writeData(0x00); // All Off
+ }
+ break; // case PCF2119_3V3 Controller
+
+ default:
+ break; // end default
+ } // end switch _ctrl
+
+ //Select DD RAM again for current LCD controller and restore the addresspointer
+ int addr = getAddress(_column, _row);
+ _writeCommand(0x80 | addr);
+} //end clrIcon()
+#endif
+
+#if(LCD_INVERT == 1)
+/** Set Invert
+ * setInvert method is supported by some compatible devices (eg KS0073) to swap between black and white
+ *
+ * @param bool invertOn Invert on/off
+ * @return none
+ */
+//@TODO Add support for 40x4 dual controller
+void TextLCD_Base::setInvert(bool invertOn) {
+
+ if (invertOn) {
+ // Controllers that support Invert
+ switch (_ctrl) {
+ case KS0073:
+ case KS0078:
+ _function = _function | 0x01; // Enable Invert
+ _writeCommand(0x20 | _function); // Activate Invert (Std Instr Set)
+ break;
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ case US2066_3V3:
+// case USS2066_5V:
+ _function_1 = _function_1 | 0x01; // Enable Invert
+ // Set function, 0 0 1 DL N BE RE(1) REV (SSD1803)
+ // Set function, 0 0 1 X N BE RE(1) REV (US2066)
+ _writeCommand(0x20 | _function_1); // Activate Invert (Ext Instr Set)
+ _writeCommand(0x20 | _function); // Return to Std Instr Set
+ break;
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } // end switch
+ }
+ else {
+ // Controllers that support Invert
+ switch (_ctrl) {
+ case KS0073:
+ case KS0078:
+ _function = _function & ~0x01; // Disable Invert
+ _writeCommand(0x20 | _function); // Disable Invert (Std Instr Set)
+ break;
+ case SSD1803_3V3 :
+// case SSD1803_5V :
+ case US2066_3V3:
+// case USS2066_5V:
+ _function_1 = _function_1 & ~0x01; // Disable Invert
+ // Set function, 0 0 1 DL N BE RE(1) REV (SSD1803)
+ // Set function, 0 0 1 X N BE RE(1) REV (US2066)
+ _writeCommand(0x20 | _function_1); // Activate Invert (Ext Instr Set)
+ _writeCommand(0x20 | _function); // Return to Std Instr Set
+ break;
+
+ default:
+ //Unsupported feature for other controllers
+ break;
+ } // end switch
+ }
+} // end setInvert()
+#endif
//--------- End TextLCD_Base -----------
-
//--------- Start TextLCD Bus -----------
/* Create a TextLCD interface for using regular mbed pins
@@ -863,9 +3123,18 @@
// No Hardware Enable pin
_e2 = NULL; //Construct dummy pin
}
-
- _init();
-
+
+ _init(_LCD_DL_4); // Set Datalength to 4 bit for mbed bus interfaces
+}
+
+/** Destruct a TextLCD interface for using regular mbed pins
+ *
+ * @param none
+ * @return none
+ */
+TextLCD::~TextLCD() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+ if (_e2 != NULL) {delete _e2;} // E2 pin
}
/** Set E pin (or E2 pin)
@@ -892,7 +3161,6 @@
if (_e2 != NULL) {_e2->write(0);} //Reset E2 bit
}
}
-
}
// Set RS pin
@@ -905,7 +3173,6 @@
else {
_rs = 0; // Reset RS bit
}
-
}
/** Set BL pin
@@ -922,7 +3189,6 @@
else {
if (_bl != NULL) {_bl->write(0);} //Reset BL bit
}
-
}
// Place the 4bit data on the databus
@@ -931,22 +3197,11 @@
_d = value & 0x0F; // Write Databits
}
-/** Destruct a TextLCD interface for using regular mbed pins
- *
- * @param none
- * @return none
- */
-TextLCD::~TextLCD() {
- if (_bl != NULL) {delete _bl;} // BL pin
- if (_e2 != NULL) {delete _e2;} // E2 pin
-}
-
-
//----------- End TextLCD ---------------
//--------- Start TextLCD_I2C -----------
-
+#if(LCD_I2C == 1) /* I2C Expander PCF8574/MCP23008 */
/** Create a TextLCD interface using an I2C PC8574 (or PCF8574A) or MCP23008 portexpander
*
* @param i2c I2C Bus
@@ -960,72 +3215,91 @@
_slaveAddress = deviceAddress & 0xFE;
-
// Setup the I2C bus
// The max bitrate for PCF8574 is 100kbit, the max bitrate for MCP23008 is 400kbit,
-// _i2c->frequency(100000);
+ _i2c->frequency(100000);
-
#if (MCP23008==1)
// MCP23008 portexpander Init
- _write_register(IODIR, 0x00); // All outputs
- _write_register(IPOL, 0x00); // No reverse polarity
- _write_register(GPINTEN, 0x00); // No interrupt
- _write_register(DEFVAL, 0x00); // Default value to compare against for interrupts
- _write_register(INTCON, 0x00); // No interrupt on changes
- _write_register(IOCON, 0x00); // Interrupt polarity
- _write_register(GPPU, 0x00); // No Pullup
- _write_register(INTF, 0x00); //
- _write_register(INTCAP, 0x00); //
- _write_register(GPIO, 0x00); // Output/Input pins
- _write_register(OLAT, 0x00); // Output Latch
+ _writeRegister(IODIR, 0x00); // All pins are outputs
+ _writeRegister(IPOL, 0x00); // No reverse polarity on inputs
+ _writeRegister(GPINTEN, 0x00); // No interrupt on change of input pins
+ _writeRegister(DEFVAL, 0x00); // Default value to compare against for interrupts
+ _writeRegister(INTCON, 0x00); // No interrupt on changes, compare against previous pin value
+ _writeRegister(IOCON, 0x20); // b1=0 - Interrupt polarity active low
+ // b2=0 - Interrupt pin active driver output
+ // b4=0 - Slew rate enable on SDA
+ // b5=0 - Auto-increment on registeraddress
+ // b5=1 - No auto-increment on registeraddress => needed for performance improved I2C expander mode
+ _writeRegister(GPPU, 0x00); // No Pullup
+// INTF // Interrupt flags read (Read-Only)
+// INTCAP // Captured inputpins at time of interrupt (Read-Only)
+// _writeRegister(GPIO, 0x00); // Output/Input pins
+// _writeRegister(OLAT, 0x00); // Output Latch
// Init the portexpander bus
- _lcd_bus = D_LCD_BUS_DEF;
+ _lcd_bus = LCD_BUS_I2C_DEF;
// write the new data to the portexpander
- _write_register(GPIO, _lcd_bus);
+ _writeRegister(GPIO, _lcd_bus);
#else
// PCF8574 of PCF8574A portexpander
// Init the portexpander bus
- _lcd_bus = D_LCD_BUS_DEF;
+ _lcd_bus = LCD_BUS_I2C_DEF;
// write the new data to the portexpander
_i2c->write(_slaveAddress, &_lcd_bus, 1);
#endif
- _init();
-
+ _init(_LCD_DL_4); // Set Datalength to 4 bit for all serial expander interfaces
}
+// Set E bit (or E2 bit) in the databus shadowvalue
+// Used for mbed I2C bus expander
+void TextLCD_I2C::_setEnableBit(bool value) {
+
+#if (LCD_TWO_CTRL == 1)
+ if(_ctrl_idx==_LCDCtrl_0) {
+ if (value) {
+ _lcd_bus |= LCD_BUS_I2C_E; // Set E bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_I2C_E; // Reset E bit
+ }
+ }
+ else {
+ if (value) {
+ _lcd_bus |= LCD_BUS_I2C_E2; // Set E2 bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_I2C_E2; // Reset E2bit
+ }
+ }
+#else
+// Support only one controller
+ if (value) {
+ _lcd_bus |= LCD_BUS_I2C_E; // Set E bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_I2C_E; // Reset E bit
+ }
+
+#endif
+}
+
// Set E pin (or E2 pin)
// Used for mbed pins, I2C bus expander or SPI shiftregister
void TextLCD_I2C::_setEnable(bool value) {
- if(_ctrl_idx==_LCDCtrl_0) {
- if (value) {
- _lcd_bus |= D_LCD_E; // Set E bit
- }
- else {
- _lcd_bus &= ~D_LCD_E; // Reset E bit
- }
- }
- else {
- if (value) {
- _lcd_bus |= D_LCD_E2; // Set E2 bit
- }
- else {
- _lcd_bus &= ~D_LCD_E2; // Reset E2bit
- }
- }
-
+ // Place the E or E2 bit data on the databus shadowvalue
+ _setEnableBit(value);
#if (MCP23008==1)
// MCP23008 portexpander
// write the new data to the portexpander
- _write_register(GPIO, _lcd_bus);
+ _writeRegister(GPIO, _lcd_bus);
#else
// PCF8574 of PCF8574A portexpander
@@ -1034,30 +3308,29 @@
#endif
}
+
// Set RS pin
// Used for mbed pins, I2C bus expander or SPI shiftregister
void TextLCD_I2C::_setRS(bool value) {
if (value) {
- _lcd_bus |= D_LCD_RS; // Set RS bit
+ _lcd_bus |= LCD_BUS_I2C_RS; // Set RS bit
}
else {
- _lcd_bus &= ~D_LCD_RS; // Reset RS bit
+ _lcd_bus &= ~LCD_BUS_I2C_RS; // Reset RS bit
}
-
#if (MCP23008==1)
// MCP23008 portexpander
// write the new data to the portexpander
- _write_register(GPIO, _lcd_bus);
+ _writeRegister(GPIO, _lcd_bus);
#else
// PCF8574 of PCF8574A portexpander
// write the new data to the I2C portexpander
_i2c->write(_slaveAddress, &_lcd_bus, 1);
-#endif
-
+#endif
}
// Set BL pin
@@ -1065,90 +3338,312 @@
void TextLCD_I2C::_setBL(bool value) {
if (value) {
- _lcd_bus |= D_LCD_BL; // Set BL bit
+ _lcd_bus |= LCD_BUS_I2C_BL; // Set BL bit
}
else {
- _lcd_bus &= ~D_LCD_BL; // Reset BL bit
+ _lcd_bus &= ~LCD_BUS_I2C_BL; // Reset BL bit
}
#if (MCP23008==1)
// MCP23008 portexpander
// write the new data to the portexpander
- _write_register(GPIO, _lcd_bus);
+ _writeRegister(GPIO, _lcd_bus);
#else
// PCF8574 of PCF8574A portexpander
// write the new data to the I2C portexpander
_i2c->write(_slaveAddress, &_lcd_bus, 1);
+#endif
+}
+
+#if(0)
+// New optimized v018
+// Test faster _writeByte 0.11s vs 0.27s for a 20x4 fillscreen (PCF8574), same as v018
+// Place the 4bit data in the databus shadowvalue
+// Used for mbed I2C bus expander
+const char _LCD_DATA_BITS[16] = {
+ 0x00,
+ ( LCD_BUS_I2C_D4),
+ ( LCD_BUS_I2C_D5 ),
+ ( LCD_BUS_I2C_D5 | LCD_BUS_I2C_D4),
+ ( LCD_BUS_I2C_D6 ),
+ ( LCD_BUS_I2C_D6 | LCD_BUS_I2C_D4),
+ ( LCD_BUS_I2C_D6 | LCD_BUS_I2C_D5 ),
+ ( LCD_BUS_I2C_D6 | LCD_BUS_I2C_D5 | LCD_BUS_I2C_D4),
+ (LCD_BUS_I2C_D7 ),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D4),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D5 ),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D5 | LCD_BUS_I2C_D4),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D6 ),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D6 | LCD_BUS_I2C_D4),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D6 | LCD_BUS_I2C_D5 ),
+ (LCD_BUS_I2C_D7 | LCD_BUS_I2C_D6 | LCD_BUS_I2C_D5 | LCD_BUS_I2C_D4)
+ };
+void TextLCD_I2C::_setDataBits(int value) {
+
+ //Clear all databits
+ _lcd_bus &= ~LCD_BUS_I2C_MSK;
+
+ // Set bit by bit to support any mapping of expander portpins to LCD pins
+ _lcd_bus |= _LCD_DATA_BITS[value & 0x0F];
+}
#endif
-
+
+// Test faster _writeByte 0.11s vs 0.27s for a 20x4 fillscreen (PCF8574)
+// Place the 4bit data in the databus shadowvalue
+// Used for mbed I2C bus expander
+void TextLCD_I2C::_setDataBits(int value) {
+
+ //Clear all databits
+ _lcd_bus &= ~LCD_BUS_I2C_MSK;
+
+ // Set bit by bit to support any mapping of expander portpins to LCD pins
+ if (value & 0x01){
+ _lcd_bus |= LCD_BUS_I2C_D4; // Set Databit
+ }
+
+ if (value & 0x02){
+ _lcd_bus |= LCD_BUS_I2C_D5; // Set Databit
+ }
+
+ if (value & 0x04) {
+ _lcd_bus |= LCD_BUS_I2C_D6; // Set Databit
+ }
+
+ if (value & 0x08) {
+ _lcd_bus |= LCD_BUS_I2C_D7; // Set Databit
+ }
}
-
// Place the 4bit data on the databus
// Used for mbed pins, I2C bus expander or SPI shifregister
void TextLCD_I2C::_setData(int value) {
- int data;
-
- // Set bit by bit to support any mapping of expander portpins to LCD pins
+
+ // Place the 4bit data on the databus shadowvalue
+ _setDataBits(value);
- data = value & 0x0F;
- if (data & 0x01){
- _lcd_bus |= D_LCD_D4; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D4; // Reset Databit
- }
-
- if (data & 0x02){
- _lcd_bus |= D_LCD_D5; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D5; // Reset Databit
- }
-
- if (data & 0x04) {
- _lcd_bus |= D_LCD_D6; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D6; // Reset Databit
- }
-
- if (data & 0x08) {
- _lcd_bus |= D_LCD_D7; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D7; // Reset Databit
- }
-
+ // Place the 4bit data on the databus
#if (MCP23008==1)
// MCP23008 portexpander
// write the new data to the portexpander
- _write_register(GPIO, _lcd_bus);
+ _writeRegister(GPIO, _lcd_bus);
#else
// PCF8574 of PCF8574A portexpander
// write the new data to the I2C portexpander
_i2c->write(_slaveAddress, &_lcd_bus, 1);
-#endif
-
+#endif
}
// Write data to MCP23008 I2C portexpander
-void TextLCD_I2C::_write_register (int reg, int value) {
- char data[] = {reg, value};
+// Used for mbed I2C bus expander
+void TextLCD_I2C::_writeRegister (int reg, int value) {
+ char data[] = {(char)reg, (char)value}; // modified by by JH1PJL
- _i2c->write(_slaveAddress, data, 2);
-
+ _i2c->write(_slaveAddress, data, 2);
+}
+
+//New optimized
+//Test faster _writeByte 0.11s vs 0.27s for a 20x4 fillscreen (PCF8574)
+//Test faster _writeByte 0.14s vs 0.34s for a 20x4 fillscreen (MCP23008)
+
+// Write a byte using I2C
+void TextLCD_I2C::_writeByte(int value) {
+ char data[6];
+
+#if (MCP23008==1)
+ // MCP23008 portexpander
+
+ data[0] = GPIO; // set registeraddres
+ // Note: auto-increment is disabled so all data will go to GPIO register
+
+ _setEnableBit(true); // set E
+ _setDataBits(value >> 4); // set data high
+ data[1] = _lcd_bus;
+
+ _setEnableBit(false); // clear E
+ data[2] = _lcd_bus;
+
+ _setEnableBit(true); // set E
+ _setDataBits(value); // set data low
+ data[3] = _lcd_bus;
+
+ _setEnableBit(false); // clear E
+ data[4] = _lcd_bus;
+
+ // write the packed data to the I2C portexpander
+ _i2c->write(_slaveAddress, data, 5);
+#else
+ // PCF8574 of PCF8574A portexpander
+
+ _setEnableBit(true); // set E
+ _setDataBits(value >> 4); // set data high
+ data[0] = _lcd_bus;
+
+ _setEnableBit(false); // clear E
+ data[1] = _lcd_bus;
+
+ _setEnableBit(true); // set E
+ _setDataBits(value); // set data low
+ data[2] = _lcd_bus;
+
+ _setEnableBit(false); // clear E
+ data[3] = _lcd_bus;
+
+ // write the packed data to the I2C portexpander
+ _i2c->write(_slaveAddress, data, 4);
+#endif
+}
+
+#endif /* I2C Expander PCF8574/MCP23008 */
+//---------- End TextLCD_I2C ------------
+
+
+//--------- Start TextLCD_SPI -----------
+#if(LCD_SPI == 1) /* SPI Expander SN74595 */
+
+ /** Create a TextLCD interface using an SPI 74595 portexpander
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param ctrl LCD controller (default = HD44780)
+ */
+TextLCD_SPI::TextLCD_SPI(SPI *spi, PinName cs, LCDType type, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+ // Init cs
+ _cs = 1;
+
+ // Setup the spi for 8 bit data, low steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(8,0);
+ _spi->frequency(500000);
+ //_spi.frequency(1000000);
+
+ WAIT_MS(100); // Wait 100ms to ensure LCD powered up
+
+ // Init the portexpander bus
+ _lcd_bus = LCD_BUS_SPI_DEF;
+
+ // write the new data to the portexpander
+ _cs = 0;
+ _spi->write(_lcd_bus);
+ _cs = 1;
+
+ _init(_LCD_DL_4); // Set Datalength to 4 bit for all serial expander interfaces
}
-//---------- End TextLCD_I2C ------------
+// Set E pin (or E2 pin)
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI::_setEnable(bool value) {
+
+ if(_ctrl_idx==_LCDCtrl_0) {
+ if (value) {
+ _lcd_bus |= LCD_BUS_SPI_E; // Set E bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_E; // Reset E bit
+ }
+ }
+ else {
+ if (value) {
+ _lcd_bus |= LCD_BUS_SPI_E2; // Set E2 bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_E2; // Reset E2 bit
+ }
+ }
+
+ // write the new data to the SPI portexpander
+ _cs = 0;
+ _spi->write(_lcd_bus);
+ _cs = 1;
+}
+
+// Set RS pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister and SPI_N
+void TextLCD_SPI::_setRS(bool value) {
+
+ if (value) {
+ _lcd_bus |= LCD_BUS_SPI_RS; // Set RS bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_RS; // Reset RS bit
+ }
+
+ // write the new data to the SPI portexpander
+ _cs = 0;
+ _spi->write(_lcd_bus);
+ _cs = 1;
+}
+
+// Set BL pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI::_setBL(bool value) {
+
+ if (value) {
+ _lcd_bus |= LCD_BUS_SPI_BL; // Set BL bit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_BL; // Reset BL bit
+ }
+
+ // write the new data to the SPI portexpander
+ _cs = 0;
+ _spi->write(_lcd_bus);
+ _cs = 1;
+}
+
+// Place the 4bit data on the databus
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI::_setData(int value) {
+
+ // Set bit by bit to support any mapping of expander portpins to LCD pins
+ if (value & 0x01) {
+ _lcd_bus |= LCD_BUS_SPI_D4; // Set Databit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_D4; // Reset Databit
+ }
+
+ if (value & 0x02) {
+ _lcd_bus |= LCD_BUS_SPI_D5; // Set Databit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_D5; // Reset Databit
+ }
+
+ if (value & 0x04) {
+ _lcd_bus |= LCD_BUS_SPI_D6; // Set Databit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_D6; // Reset Databit
+ }
+
+ if (value & 0x08) {
+ _lcd_bus |= LCD_BUS_SPI_D7; // Set Databit
+ }
+ else {
+ _lcd_bus &= ~LCD_BUS_SPI_D7; // Reset Databit
+ }
+
+ // write the new data to the SPI portexpander
+ _cs = 0;
+ _spi->write(_lcd_bus);
+ _cs = 1;
+}
+
+#endif /* SPI Expander SN74595 */
+//---------- End TextLCD_SPI ------------
//--------- Start TextLCD_I2C_N ---------
+#if(LCD_I2C_N == 1) /* Native I2C */
/** Create a TextLCD interface using a controller with native I2C interface
*
@@ -1160,16 +3655,16 @@
*/
TextLCD_I2C_N::TextLCD_I2C_N(I2C *i2c, char deviceAddress, LCDType type, PinName bl, LCDCtrl ctrl) :
TextLCD_Base(type, ctrl),
+
_i2c(i2c){
-
+
_slaveAddress = deviceAddress & 0xFE;
-
// Setup the I2C bus
- // The max bitrate for ST7032 is 400kbit,
-// _i2c->frequency(100000);
-
-
+ // The max bitrate for ST7032i is 400kbit, lets stick to default here
+ _i2c->frequency(100000);
+
+
// The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
if (bl != NC) {
_bl = new DigitalOut(bl); //Construct new pin
@@ -1180,7 +3675,13 @@
_bl = NULL; //Construct dummy pin
}
- _init();
+ //Sanity check
+ if (_ctrl & LCD_C_I2C) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native I2C interface\n\r");
+ }
}
TextLCD_I2C_N::~TextLCD_I2C_N() {
@@ -1194,7 +3695,16 @@
// Set RS pin
// Used for mbed pins, I2C bus expander or SPI shiftregister and native I2C or SPI
void TextLCD_I2C_N::_setRS(bool value) {
-
+// The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
+// Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
+// Co RS RW 0 0 0 0 0 command or data
+//
+// C0=1 indicates that another controlbyte will follow after the next data or command byte
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+// RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
+// Many native I2C controllers dont support this option and it is not used by this lib.
+//
+
if (value) {
_controlbyte = 0x40; // Next byte is data, No more control bytes will follow
}
@@ -1209,187 +3719,44 @@
_bl->write(value);
}
}
-
-// Write a byte using I2C
-void TextLCD_I2C_N::_writeByte(int value) {
-
- char data[] = {_controlbyte, value};
-
- _i2c->write(_slaveAddress, data, 2);
-
-}
// Not used in this mode
void TextLCD_I2C_N::_setData(int value) {
}
-
-//-------- End TextLCD_I2C_N ------------
-
-
-
-
-//--------- Start TextLCD_SPI -----------
-
- /** Create a TextLCD interface using an SPI 74595 portexpander
- *
- * @param spi SPI Bus
- * @param cs chip select pin (active low)
- * @param type Sets the panel size/addressing mode (default = LCD16x2)
- * @param ctrl LCD controller (default = HD44780)
- */
-TextLCD_SPI::TextLCD_SPI(SPI *spi, PinName cs, LCDType type, LCDCtrl ctrl) :
- TextLCD_Base(type, ctrl),
- _spi(spi),
- _cs(cs) {
-
- // Setup the spi for 8 bit data, low steady state clock,
- // rising edge capture, with a 500KHz or 1MHz clock rate
- _spi->format(8,0);
- _spi->frequency(500000);
- //_spi.frequency(1000000);
-
-
- // Init the portexpander bus
- _lcd_bus = D_LCD_BUS_DEF;
-
- // write the new data to the portexpander
- _setCS(false);
- _spi->write(_lcd_bus);
- _setCS(true);
-
- _init();
+// Write a byte using I2C
+void TextLCD_I2C_N::_writeByte(int value) {
+// The controlbyte defines the meaning of the next byte. This next byte can either be data or command.
+// Start Slaveaddress+RW b7 b6 b5 b4 b3 b2 b1 b0 b7...........b0 Stop
+// Co RS RW 0 0 0 0 0 command or data
+//
+// C0=1 indicates that another controlbyte will follow after the next data or command byte
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+// RW=0 means write to controller. RW=1 means that controller will be read from after the next command.
+// Many native I2C controllers dont support this option and it is not used by this lib.
+//
+ char data[] = {_controlbyte, (char)value}; // modified by by JH1PJL
+#if(LCD_I2C_ACK==1)
+//Controllers that support ACK
+ _i2c->write(_slaveAddress, data, 2);
+#else
+//Controllers that dont support ACK
+//Note: This may be issue with some mbed platforms that dont fully/correctly support I2C byte operations.
+ _i2c->start();
+ _i2c->write(_slaveAddress);
+ _i2c->write(data[0]);
+ _i2c->write(data[1]);
+ _i2c->stop();
+#endif
}
-
-// Set E pin (or E2 pin)
-// Used for mbed pins, I2C bus expander or SPI shiftregister
-void TextLCD_SPI::_setEnable(bool value) {
-
- if(_ctrl_idx==_LCDCtrl_0) {
- if (value) {
- _lcd_bus |= D_LCD_E; // Set E bit
- }
- else {
- _lcd_bus &= ~D_LCD_E; // Reset E bit
- }
- }
- else {
- if (value) {
- _lcd_bus |= D_LCD_E2; // Set E2 bit
- }
- else {
- _lcd_bus &= ~D_LCD_E2; // Reset E2 bit
- }
- }
-
- // write the new data to the SPI portexpander
- _setCS(false);
- _spi->write(_lcd_bus);
- _setCS(true);
-
-}
-
-// Set RS pin
-// Used for mbed pins, I2C bus expander or SPI shiftregister
-void TextLCD_SPI::_setRS(bool value) {
-
- if (value) {
- _lcd_bus |= D_LCD_RS; // Set RS bit
- }
- else {
- _lcd_bus &= ~D_LCD_RS; // Reset RS bit
- }
-
- // write the new data to the SPI portexpander
- _setCS(false);
- _spi->write(_lcd_bus);
- _setCS(true);
-
-}
-
-// Set BL pin
-// Used for mbed pins, I2C bus expander or SPI shiftregister
-void TextLCD_SPI::_setBL(bool value) {
-
- if (value) {
- _lcd_bus |= D_LCD_BL; // Set BL bit
- }
- else {
- _lcd_bus &= ~D_LCD_BL; // Reset BL bit
- }
-
- // write the new data to the SPI portexpander
- _setCS(false);
- _spi->write(_lcd_bus);
- _setCS(true);
-
-}
-
-
-
-// Place the 4bit data on the databus
-// Used for mbed pins, I2C bus expander or SPI shiftregister
-void TextLCD_SPI::_setData(int value) {
- int data;
-
- // Set bit by bit to support any mapping of expander portpins to LCD pins
-
- data = value & 0x0F;
- if (data & 0x01) {
- _lcd_bus |= D_LCD_D4; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D4; // Reset Databit
- }
-
- if (data & 0x02) {
- _lcd_bus |= D_LCD_D5; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D5; // Reset Databit
- }
-
- if (data & 0x04) {
- _lcd_bus |= D_LCD_D6; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D6; // Reset Databit
- }
-
- if (data & 0x08) {
- _lcd_bus |= D_LCD_D7; // Set Databit
- }
- else {
- _lcd_bus &= ~D_LCD_D7; // Reset Databit
- }
-
- // write the new data to the SPI portexpander
- _setCS(false);
- _spi->write(_lcd_bus);
- _setCS(true);
-
-}
-
-
-// Set CS line.
-// Only used for SPI bus
-void TextLCD_SPI::_setCS(bool value) {
-
- if (value) {
- _cs = 1; // Set CS pin
- }
- else {
- _cs = 0; // Reset CS pin
- }
-}
-
-//---------- End TextLCD_SPI ------------
+#endif /* Native I2C */
+//-------- End TextLCD_I2C_N ------------
//--------- Start TextLCD_SPI_N ---------
-
- /** Create a TextLCD interface using a controller with a native SPI interface
+#if(LCD_SPI_N == 1) /* Native SPI bus */
+ /** Create a TextLCD interface using a controller with a native SPI4 interface
*
* @param spi SPI Bus
* @param cs chip select pin (active low)
@@ -1404,6 +3771,417 @@
_cs(cs),
_rs(rs) {
+ // Init CS
+ _cs = 1;
+
+ // Setup the spi for 8 bit data, high steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+// _spi->format(8,3);
+// _spi->frequency(500000);
+// _spi->frequency(1000000);
+
+ // Setup the spi for 8 bit data, low steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(8,0);
+// _spi->frequency(500000);
+ _spi->frequency(1000000);
+
+ // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
+ if (bl != NC) {
+ _bl = new DigitalOut(bl); //Construct new pin
+ _bl->write(0); //Deactivate
+ }
+ else {
+ // No Hardware Backlight pin
+ _bl = NULL; //Construct dummy pin
+ }
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI4) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ // ST7070 must set datalength to 8 bits!
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI4 interface\n\r");
+ }
+}
+
+TextLCD_SPI_N::~TextLCD_SPI_N() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+}
+
+// Not used in this mode
+void TextLCD_SPI_N::_setEnable(bool value) {
+}
+
+// Set RS pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister, SPI_N
+void TextLCD_SPI_N::_setRS(bool value) {
+ _rs = value;
+}
+
+// Set BL pin
+void TextLCD_SPI_N::_setBL(bool value) {
+ if (_bl) {
+ _bl->write(value);
+ }
+}
+
+// Not used in this mode
+void TextLCD_SPI_N::_setData(int value) {
+}
+
+// Write a byte using SPI
+void TextLCD_SPI_N::_writeByte(int value) {
+ _cs = 0;
+ wait_us(1);
+ _spi->write(value);
+ wait_us(1);
+ _cs = 1;
+}
+#endif /* Native SPI bus */
+//-------- End TextLCD_SPI_N ------------
+
+
+//-------- Start TextLCD_SPI_N_3_8 --------
+#if(LCD_SPI_N_3_8 == 1) /* Native SPI bus */
+
+ /** Create a TextLCD interface using a controller with a native SPI3 8 bits interface
+ * This mode is supported by ST7070. Note that implementation in TexTLCD is not very efficient due to
+ * structure of the TextLCD library: each databyte is written separately and requires a separate 'count command' set to 1 byte.
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = ST7070)
+ */
+TextLCD_SPI_N_3_8::TextLCD_SPI_N_3_8(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+
+ // Init CS
+ _cs = 1;
+
+ // Setup the spi for 8 bit data, high steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+// _spi->format(8,3);
+// _spi->frequency(500000);
+// _spi->frequency(1000000);
+
+ // Setup the spi for 8 bit data, low steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(8,0);
+// _spi->frequency(500000);
+ _spi->frequency(1000000);
+
+
+ // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
+ if (bl != NC) {
+ _bl = new DigitalOut(bl); //Construct new pin
+ _bl->write(0); //Deactivate
+ }
+ else {
+ // No Hardware Backlight pin
+ _bl = NULL; //Construct dummy pin
+ }
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI3_8) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI3 8 bits interface\n\r");
+ }
+}
+
+TextLCD_SPI_N_3_8::~TextLCD_SPI_N_3_8() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_8::_setEnable(bool value) {
+}
+
+// Used for mbed pins, I2C bus expander or SPI shiftregister, SPI_N
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+void TextLCD_SPI_N_3_8::_setRS(bool value) {
+
+ if (value) {
+ _controlbyte = 0x01; // Next byte is data, No more control bytes will follow
+ }
+ else {
+ _controlbyte = 0x00; // Next byte is command, No more control bytes will follow
+ }
+}
+
+// Set BL pin
+void TextLCD_SPI_N_3_8::_setBL(bool value) {
+ if (_bl) {
+ _bl->write(value);
+ }
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_8::_setData(int value) {
+}
+
+// Write a byte using SPI3 8 bits mode (ST7070)
+void TextLCD_SPI_N_3_8::_writeByte(int value) {
+
+ if (_controlbyte == 0x00) { // Byte is command
+ _cs = 0;
+ wait_us(1);
+ _spi->write(value);
+ wait_us(1);
+ _cs = 1;
+ }
+ else { // Byte is data
+ // Select Extended Instr Set
+ _cs = 0;
+ wait_us(1);
+ _spi->write(0x20 | _function | 0x04); // Set function, 0 0 1 DL N EXT=1 x x (Select Instr Set = 1));
+ wait_us(1);
+ _cs = 1;
+
+ wait_us(40); // Wait until command has finished...
+
+ // Set Count to 1 databyte
+ _cs = 0;
+ wait_us(1);
+ _spi->write(0x80); // Set display data length, 1 L6 L5 L4 L3 L2 L1 L0 (Instr Set = 1)
+ wait_us(1);
+ _cs = 1;
+
+ wait_us(40);
+
+ // Write 1 databyte
+ _cs = 0;
+ wait_us(1);
+ _spi->write(value); // Write data (Instr Set = 1)
+ wait_us(1);
+ _cs = 1;
+
+ wait_us(40);
+
+ // Select Standard Instr Set
+ _cs = 0;
+ wait_us(1);
+ _spi->write(0x20 | _function); // Set function, 0 0 1 DL N EXT=0 x x (Select Instr Set = 0));
+ wait_us(1);
+ _cs = 1;
+ }
+}
+#endif /* Native SPI bus */
+//------- End TextLCD_SPI_N_3_8 -----------
+
+
+//-------- Start TextLCD_SPI_N_3_9 --------
+#if(LCD_SPI_N_3_9 == 1) /* Native SPI bus */
+//Code checked out on logic analyser. Not yet tested on hardware..
+
+ /** Create a TextLCD interface using a controller with a native SPI3 9 bits interface
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = AIP31068)
+ */
+TextLCD_SPI_N_3_9::TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+
+ // Init CS
+ _cs = 1;
+
+ // Setup the spi for 9 bit data, high steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(9,3);
+ _spi->frequency(1000000);
+
+ // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
+ if (bl != NC) {
+ _bl = new DigitalOut(bl); //Construct new pin
+ _bl->write(0); //Deactivate
+ }
+ else {
+ // No Hardware Backlight pin
+ _bl = NULL; //Construct dummy pin
+ }
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI3_9) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI3 9 bits interface\n\r");
+ }
+}
+
+TextLCD_SPI_N_3_9::~TextLCD_SPI_N_3_9() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_9::_setEnable(bool value) {
+}
+
+// Set RS pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI_N_3_9::_setRS(bool value) {
+// The controlbits define the meaning of the next byte. This next byte can either be data or command.
+// b8 b7...........b0
+// RS command or data
+//
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+//
+
+ if (value) {
+ _controlbyte = 0x01; // Next byte is data
+ }
+ else {
+ _controlbyte = 0x00; // Next byte is command
+ }
+}
+
+// Set BL pin
+void TextLCD_SPI_N_3_9::_setBL(bool value) {
+ if (_bl) {
+ _bl->write(value);
+ }
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_9::_setData(int value) {
+}
+
+// Write a byte using SPI3 9 bits mode
+void TextLCD_SPI_N_3_9::_writeByte(int value) {
+ _cs = 0;
+ wait_us(1);
+ _spi->write( (_controlbyte << 8) | (value & 0xFF));
+ wait_us(1);
+ _cs = 1;
+}
+#endif /* Native SPI bus */
+//------- End TextLCD_SPI_N_3_9 -----------
+
+
+//------- Start TextLCD_SPI_N_3_10 --------
+#if(LCD_SPI_N_3_10 == 1) /* Native SPI bus */
+
+ /** Create a TextLCD interface using a controller with a native SPI3 10 bits interface
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = AIP31068)
+ */
+TextLCD_SPI_N_3_10::TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+
+ // Init CS
+ _cs = 1;
+
+ // Setup the spi for 10 bit data, low steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(10,0);
+ _spi->frequency(1000000);
+
+ // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
+ if (bl != NC) {
+ _bl = new DigitalOut(bl); //Construct new pin
+ _bl->write(0); //Deactivate
+ }
+ else {
+ // No Hardware Backlight pin
+ _bl = NULL; //Construct dummy pin
+ }
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI3_10) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI3 10 bits interface\n\r");
+ }
+}
+
+TextLCD_SPI_N_3_10::~TextLCD_SPI_N_3_10() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_10::_setEnable(bool value) {
+}
+
+// Set RS pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI_N_3_10::_setRS(bool value) {
+// The controlbits define the meaning of the next byte. This next byte can either be data or command.
+// b9 b8 b7...........b0
+// RS RW command or data
+//
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+// RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
+//
+
+ if (value) {
+ _controlbyte = 0x02; // Next byte is data
+ }
+ else {
+ _controlbyte = 0x00; // Next byte is command
+ }
+}
+
+// Set BL pin
+void TextLCD_SPI_N_3_10::_setBL(bool value) {
+ if (_bl) {
+ _bl->write(value);
+ }
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_10::_setData(int value) {
+}
+
+// Write a byte using SPI3 10 bits mode
+void TextLCD_SPI_N_3_10::_writeByte(int value) {
+ _cs = 0;
+ wait_us(1);
+ _spi->write( (_controlbyte << 8) | (value & 0xFF));
+ wait_us(1);
+ _cs = 1;
+}
+#endif /* Native SPI bus */
+//------- End TextLCD_SPI_N_3_10 ----------
+
+
+//------- Start TextLCD_SPI_N_3_16 --------
+#if(LCD_SPI_N_3_16 == 1) /* Native SPI bus */
+
+ /** Create a TextLCD interface using a controller with a native SPI3 16 bits interface
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = PT6314)
+ */
+TextLCD_SPI_N_3_16::TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+
+ // Init CS
+ _cs = 1;
+
// Setup the spi for 8 bit data, low steady state clock,
// rising edge capture, with a 500KHz or 1MHz clock rate
_spi->format(8,0);
@@ -1418,48 +4196,171 @@
// No Hardware Backlight pin
_bl = NULL; //Construct dummy pin
}
-
- _init();
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI3_16) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI3 16 bits interface\n\r");
+ }
}
-TextLCD_SPI_N::~TextLCD_SPI_N() {
+TextLCD_SPI_N_3_16::~TextLCD_SPI_N_3_16() {
if (_bl != NULL) {delete _bl;} // BL pin
}
// Not used in this mode
-void TextLCD_SPI_N::_setEnable(bool value) {
+void TextLCD_SPI_N_3_16::_setEnable(bool value) {
}
// Set RS pin
// Used for mbed pins, I2C bus expander or SPI shiftregister
-void TextLCD_SPI_N::_setRS(bool value) {
- _rs = value;
+void TextLCD_SPI_N_3_16::_setRS(bool value) {
+// 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.
+// The 8 actual bits represent either a data or a command byte.
+// b15 b14 b13 b12 b11 b10 b9 b8 - b7 b6 b5 b4 b3 b2 b1 b0
+// 1 1 1 1 1 RW RS 0 d7 d6 d5 d4 d3 d2 d1 d0
+//
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+// RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
+//
+
+ if (value) {
+ _controlbyte = 0xFA; // Next byte is data
+ }
+ else {
+ _controlbyte = 0xF8; // Next byte is command
+ }
}
// Set BL pin
-void TextLCD_SPI_N::_setBL(bool value) {
+void TextLCD_SPI_N_3_16::_setBL(bool value) {
if (_bl) {
_bl->write(value);
}
}
-// Write a byte using SPI
-void TextLCD_SPI_N::_writeByte(int value) {
+// Not used in this mode
+void TextLCD_SPI_N_3_16::_setData(int value) {
+}
+
+// Write a byte using SPI3 16 bits mode
+void TextLCD_SPI_N_3_16::_writeByte(int value) {
_cs = 0;
wait_us(1);
- _spi->write(value);
+
+ _spi->write(_controlbyte);
+
+ _spi->write(value);
+
wait_us(1);
_cs = 1;
}
-
+#endif /* Native SPI bus */
+//------- End TextLCD_SPI_N_3_16 ----------
+
+
+//------- Start TextLCD_SPI_N_3_24 --------
+#if(LCD_SPI_N_3_24 == 1) /* Native SPI bus */
+
+ /** Create a TextLCD interface using a controller with a native SPI3 24 bits interface
+ *
+ * @param spi SPI Bus
+ * @param cs chip select pin (active low)
+ * @param type Sets the panel size/addressing mode (default = LCD16x2)
+ * @param bl Backlight control line (optional, default = NC)
+ * @param ctrl LCD controller (default = SSD1803)
+ */
+TextLCD_SPI_N_3_24::TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type, PinName bl, LCDCtrl ctrl) :
+ TextLCD_Base(type, ctrl),
+ _spi(spi),
+ _cs(cs) {
+
+ // Init CS
+ _cs = 1;
+
+ // Setup the spi for 8 bit data, high steady state clock,
+ // rising edge capture, with a 500KHz or 1MHz clock rate
+ _spi->format(8,3);
+ _spi->frequency(1000000);
+
+ // The hardware Backlight pin is optional. Test and make sure whether it exists or not to prevent illegal access.
+ if (bl != NC) {
+ _bl = new DigitalOut(bl); //Construct new pin
+ _bl->write(0); //Deactivate
+ }
+ else {
+ // No Hardware Backlight pin
+ _bl = NULL; //Construct dummy pin
+ }
+
+ //Sanity check
+ if (_ctrl & LCD_C_SPI3_24) {
+ _init(_LCD_DL_8); // Set Datalength to 8 bit for all native serial interfaces
+ }
+ else {
+ error("Error: LCD Controller type does not support native SPI3 24 bits interface\n\r");
+ }
+}
+
+TextLCD_SPI_N_3_24::~TextLCD_SPI_N_3_24() {
+ if (_bl != NULL) {delete _bl;} // BL pin
+}
+
// Not used in this mode
-void TextLCD_SPI_N::_setData(int value) {
+void TextLCD_SPI_N_3_24::_setEnable(bool value) {
}
-
-//-------- End TextLCD_SPI_N ------------
-
-
-
-
-
+// Set RS pin
+// Used for mbed pins, I2C bus expander or SPI shiftregister
+void TextLCD_SPI_N_3_24::_setRS(bool value) {
+// 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.
+// Each byte encodes 4 actual bits. The 8 actual bits represent either a data or a command byte.
+// b23 b22 b21 b20 b19 b18 b17 b16 - b15 b14 b13 b12 b11 b10 b9 b8 - b7 b6 b5 b4 b3 b2 b1 b0
+// 1 1 1 1 1 RW RS 0 d0 d1 d2 d3 0 0 0 0 d4 d5 d6 d7 0 0 0 0
+//
+// RS=1 means that next byte is data, RS=0 means that next byte is command
+// RW=0 means that next byte is writen, RW=1 means that next byte is read (not used in this lib)
+//
+// Note: SPI3_24 expects LSB first. This is inconsistent with regular SPI convention (and hardware) that sends MSB first.
+
+ if (value) {
+ _controlbyte = 0xFA; // Next byte is data
+ }
+ else {
+ _controlbyte = 0xF8; // Next byte is command
+ }
+}
+
+// Set BL pin
+void TextLCD_SPI_N_3_24::_setBL(bool value) {
+ if (_bl) {
+ _bl->write(value);
+ }
+}
+
+// Not used in this mode
+void TextLCD_SPI_N_3_24::_setData(int value) {
+}
+
+//Mapping table to flip the bits around cause SPI3_24 expects LSB first.
+const uint8_t map3_24[16] = {0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0};
+
+// Write a byte using SPI3 24 bits mode
+void TextLCD_SPI_N_3_24::_writeByte(int value) {
+ _cs = 0;
+ wait_us(1);
+ _spi->write(_controlbyte);
+
+ //Map and send the LSB nibble
+ _spi->write( map3_24[value & 0x0F]);
+
+ //Map and send the MSB nibble
+ _spi->write( map3_24[(value >> 4) & 0x0F]);
+
+ wait_us(1);
+ _cs = 1;
+}
+#endif /* Native SPI bus */
+//------- End TextLCD_SPI_N_3_24 ----------