this is 2/2 of the progect this is the master board which has a wifi module ESP8266, an RF transiever nrf module , and an LCD screen with an I2C back pack all communicating with the slave board
Fork of TextLCD by
Diff: TextLCD.cpp
- Revision:
- 41:111ca62e8a59
- Parent:
- 40:d3496c3ea301
--- a/TextLCD.cpp Wed May 20 18:46:51 2015 +0000 +++ b/TextLCD.cpp Fri Nov 06 18:59:27 2015 +0000 @@ -22,6 +22,8 @@ * 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 @@ -44,6 +46,7 @@ #include "mbed.h" #include "TextLCD.h" #include "TextLCD_UDC.inc" +#include "TextLCD_UTF8.inc" /** Create a TextLCD_Base interface * @@ -54,13 +57,13 @@ // Extract LCDType data - // Columns encoded in b7..b0 - _nr_cols = (_type & 0xFF); - - // Rows encoded in b15..b8 - _nr_rows = ((_type >> 8) & 0xFF); - - // Addressing mode encoded in b19..b16 + // 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 @@ -76,11 +79,13 @@ 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(dl); // Init 2nd controller } +#endif // Select and configure primary LCD controller _ctrl_idx=_LCDCtrl_0; // Select primary controller @@ -97,7 +102,7 @@ * 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. + * @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 @@ -149,82 +154,94 @@ 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 - _function = 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 KS0073) - // DH=1 (Disp shift enable, special mode for KS0073) - // REV=0 (Reverse normal, special mode for KS0073) - - _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 KS0073) - // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073) - // LP=0 (LP=1 Low power mode, LP=0 Normal) +// 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) + // 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 = 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 KS0073) - // DH=1 (Disp shift enable, special mode for KS0073) - // REV=0 (Reverse normal, special mode for KS0073) + _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 = 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 KS0073) - // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073) - // LP=0 (LP=1 Low power mode, LP=0 Normal) + _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) + // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0073) 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) DH REV (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 KS0073) - // DH=1 (Disp shift enable, special mode for KS0073) - // REV=0 (Reverse normal, special mode for KS0073) +// 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 = 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 KS0073) - // BE=0 (Blink Enable, CG/SEG RAM, special mode for KS0073) - // LP=0 (LP=1 Low power mode, LP=0 Normal) + _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 @@ -264,14 +281,14 @@ case LCD16x1: // case LCD20x1: case LCD24x1: - _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs) + _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 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs) + _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) @@ -291,14 +308,14 @@ // case LCD24x3D: // Special mode for KS0078 // case LCD24x3D1: // Special mode for KS0078 case LCD24x4D: // Special mode for KS0078 - _function = 0x02; // Function set 001 DL N RE(0) DH REV (Std Regs) + _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 = 0x04; // Function set 001 DL N RE(1) BE 0 (Ext Regs) + _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) @@ -309,20 +326,23 @@ // NW=0 (1,2 line), NW=1 (4 Line, special mode for KS0078) break; - case LCD16x3G: // Special mode for ST7036 - error("Error: LCD Controller type does not support this Display type\n\r"); - break; - - default: +// 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 = 0x0A; // Function set 001 DL N RE(0) DH REV (Std Regs) + _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 = 0x0C; // Function set 001 DL N RE(1) BE 0 (Ext Regs) + _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) @@ -332,6 +352,10 @@ _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 @@ -363,9 +387,10 @@ case ST7032_3V3: // ST7032 controller: Initialise Voltage booster for VLCD. VDD=3V3 + // 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 @@ -399,14 +424,16 @@ _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, Booster circuit is turned on (IS=1) - _icon_power = 0x0C; // Icon display on, Booster circuit is turned on (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 } else { @@ -1318,7 +1345,65 @@ // 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 fully compatible to HD44780 that do not use any DC/DC Voltage converters but external VLCD, no icons etc @@ -1399,6 +1484,7 @@ */ 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 @@ -1413,6 +1499,7 @@ _ctrl_idx=_LCDCtrl_0; // Select primary controller } + // Primary LCD controller Clearscreen _writeCommand(0x01); // cls, and set cursor to 0 @@ -1423,6 +1510,13 @@ 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 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. @@ -1461,11 +1555,23 @@ } else { //Character to write -#if (LCD_DEF_FONT == 1) + +#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(ASCII_2_LCD(value)); -#endif + _writeData('?'); //Oops, no font defined +#endif + //Update Cursor _column++; if (_column >= columns()) { @@ -1474,7 +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 @@ -1490,6 +1608,8 @@ return -1; } + +#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 @@ -1497,24 +1617,88 @@ */ int TextLCD_Base::ASCII_2_LCD (int c) { -//LCD_C_FT0 is default for HD44780 and compatible series - if (_font == LCD_C_FT0) return c; - -//LCD_C_FT1 for PCF21XXC series -//LCD_C_FT2 for PCF21XXR series +//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; + c &= 0x0F; } return c; - -//LCD_C_FT2 ... -//@TODO add more, eg cyrillic -//@TODO add method to switch between fonts for controllers that support this } - +#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 @@ -1657,11 +1841,6 @@ return 0x40 + (column - (_nr_cols >> 1)); #endif -// Not sure about this one, seems wrong. -// Left in for compatibility with original library -// case LCD16x2B: -// return 0x00 + (row * 40) + 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. @@ -1852,7 +2031,8 @@ // 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) { @@ -1886,6 +2066,11 @@ // Configure primary LCD controller _setCursorAndDisplayMode(_currentMode, _currentCursor); } +#else + // Support only one LCD controller + _setCursorAndDisplayMode(_currentMode, _currentCursor); + +#endif } /** Low level method to restore the cursortype and display mode for current controller @@ -1935,7 +2120,8 @@ * @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 @@ -1959,6 +2145,10 @@ // 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 @@ -2116,6 +2306,7 @@ } // 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 @@ -2148,7 +2339,8 @@ case ST7032_5V : case ST7036_3V3 : // case ST7036_5V : - case SSD1803_3V3 : + 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 @@ -2185,6 +2377,7 @@ break; } // end switch } // end setContrast() +#endif #if(LCD_POWER == 1) /** Set Power @@ -2498,6 +2691,104 @@ } // 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); + +} +#endif + + #if(LCD_ICON==1) /** Set Icons * @@ -2544,6 +2835,7 @@ 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) @@ -2642,6 +2934,7 @@ 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++) { @@ -2966,6 +3259,7 @@ // 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 @@ -2982,6 +3276,16 @@ _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) @@ -3086,46 +3390,6 @@ } #endif -#if(0) -//orig v017 -// 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) { - - // 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 - } - else { - _lcd_bus &= ~LCD_BUS_I2C_D4; // Reset Databit - } - - if (value & 0x02){ - _lcd_bus |= LCD_BUS_I2C_D5; // Set Databit - } - else { - _lcd_bus &= ~LCD_BUS_I2C_D5; // Reset Databit - } - - if (value & 0x04) { - _lcd_bus |= LCD_BUS_I2C_D6; // Set Databit - } - else { - _lcd_bus &= ~LCD_BUS_I2C_D6; // Reset Databit - } - - if (value & 0x08) { - _lcd_bus |= LCD_BUS_I2C_D7; // Set Databit - } - else { - _lcd_bus &= ~LCD_BUS_I2C_D7; // Reset Databit - } -} -#endif - -#if(1) -//orig v017, with optimised codesize // 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 @@ -3151,7 +3415,7 @@ _lcd_bus |= LCD_BUS_I2C_D7; // Set Databit } } -#endif + // Place the 4bit data on the databus // Used for mbed pins, I2C bus expander or SPI shifregister