16*2Lcd Display
Dependents: CITY1082-i2c_master
Diff: TextLCD.h
- Revision:
- 37:ce348c002929
- Parent:
- 36:9f5f86dfd44a
- Child:
- 38:cbe275b0b647
diff -r 9f5f86dfd44a -r ce348c002929 TextLCD.h --- a/TextLCD.h Tue Nov 25 19:21:18 2014 +0000 +++ b/TextLCD.h Sun Mar 29 13:08:03 2015 +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 @@ -17,6 +17,7 @@ * 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 * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -130,21 +131,27 @@ #define LCD_C_CTR 0x00020000 /*Contrast Control */ #define LCD_C_ICN 0x00040000 /*Icons */ #define LCD_C_PDN 0x00080000 /*Power Down */ +// Fonttable encoded in b15..b12 +#define LCD_C_FNT_MSK 0x0000F000 +#define LCD_C_FT0 0x00000000 /*Default */ +#define LCD_C_FT1 0x00001000 /*Font1 */ +#define LCD_C_FT2 0x00002000 /*Font2 */ /** A TextLCD interface for driving 4-bit HD44780-based LCDs * * @brief Currently supports 8x1, 8x2, 12x2, 12x3, 12x4, 16x1, 16x2, 16x3, 16x4, 20x2, 20x4, 24x2, 24x4, 40x2 and 40x4 panels - * Interface options include direct mbed pins, I2C portexpander (PCF8474/PCF8574A or MCP23008) or SPI bus shiftregister (74595) and some native I2C or SPI devices - * + * Interface options include direct mbed pins, I2C portexpander (PCF8474/PCF8574A or MCP23008) or + * SPI bus shiftregister (74595) or native I2C or SPI interfaces for some supported devices. */ class TextLCD_Base : public Stream { -//class TextLCD_Base{ +//class TextLCD_Base { -//Unfortunately this #define selection breaks Doxygen !!! +//Unfortunately the following #define selection breaks Doxygen !!! +//Add it manually when you want to disable the Stream inheritance //#if (LCD_PRINTF == 1) //class TextLCD_Base : public Stream { //#else -//class TextLCD_Base{ +//class TextLCD_Base { //#endif public: @@ -199,28 +206,32 @@ /** LCD Controller Device */ enum LCDCtrl { - HD44780 = 0 | LCD_C_PAR, /**< HD44780 or full equivalent (default) */ - WS0010 = 1 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_PDN), /**< WS0010/RS0010 OLED Controller, 4/8 bit, SPI3 */ - ST7036_3V3 = 2 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 3V3 with Booster, 4/8 bit, SPI4, I2C */ - ST7036_5V = 3 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 5V no Booster, 4/8 bit, SPI4, I2C */ - ST7032_3V3 = 4 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7032 3V3 with Booster, 4/8 bit, SPI4, I2C */ - ST7032_5V = 5 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_CTR), /**< ST7032 5V no Booster, 4/8 bit, SPI4, I2C */ - KS0078 = 6 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN), /**< KS0078 24x4 support, 4/8 bit, SPI3 */ - PCF2103_3V3 = 7 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2103 3V3 no Booster, 4/8 bit, I2C */ - PCF2113_3V3 = 8 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2113 3V3 with Booster, 4/8 bit, I2C */ - PCF2116_3V3 = 9 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST), /**< PCF2116 3V3 with Booster, 4/8 bit, I2C */ - PCF2116_5V = 10 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2116 5V no Booster, 4/8 bit, I2C */ - PCF2119_3V3 = 11 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2119 3V3 with Booster, 4/8 bit, I2C */ -// PCF2119_5V = 12 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2119 5V no Booster, 4/8 bit, I2C */ - AIP31068 = 13 | (LCD_C_SPI3_9 | LCD_C_I2C | LCD_C_BST), /**< AIP31068 I2C, SPI3 */ - SSD1803_3V3 = 14 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN), /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */ -// SSD1803_5V = 15 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN), /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */ - US2066_3V3 = 16 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_CTR | LCD_C_PDN), /**< US2066/SSD1311 3V3, 4/8 bit, I2C, SPI3 */ - PT6314 = 17 | (LCD_C_PAR | LCD_C_SPI3_16 | LCD_C_CTR), /**< PT6314 VFD, 4/8 bit, SPI3 */ - AC780 = 18 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_PDN), /**< AC780/KS0066i 4/8 bit, SPI, I2C */ -// WS0012 = 19 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_I2C | LCD_C_PDN), /**< WS0012 4/8 bit, SPI, I2C */ - ST7070 = 20 | (LCD_C_PAR | LCD_C_SPI3_8 | LCD_C_SPI4), /**< ST7070 4/8 bit, SPI3 */ - KS0073 = 21 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN) /**< KS0073 4/8 bit, SPI3 */ + HD44780 = 0 | LCD_C_PAR, /**< HD44780 or full equivalent (default) */ + AC780 = 1 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_PDN), /**< AC780/KS0066i 4/8 bit, SPI, I2C */ + AIP31068 = 2 | (LCD_C_SPI3_9 | LCD_C_I2C | LCD_C_BST), /**< AIP31068 I2C, SPI3 */ + KS0073 = 3 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN), /**< KS0073 4/8 bit, SPI3 */ + KS0078 = 4 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_PDN), /**< KS0078 24x4 support, 4/8 bit, SPI3 */ + PCF2103_3V3 = 5 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2103 3V3 no Booster, 4/8 bit, I2C */ + PCF2113_3V3 = 6 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2113 3V3 with Booster, 4/8 bit, I2C */ + PCF2116_3V3 = 7 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST), /**< PCF2116 3V3 with Booster, 4/8 bit, I2C */ + PCF2116_5V = 8 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2116 5V no Booster, 4/8 bit, I2C */ + PCF2116C_5V = 9 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST) | LCD_C_FT1, /**< PCF2116C 3V3 with Booster, 4/8 bit, I2C */ + PCF2119_3V3 = 10 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< PCF2119 3V3 with Booster, 4/8 bit, I2C */ +// PCF2119C_3V3 = 11 | (LCD_C_PAR | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), LCD_C_FT1, /**< PCF2119K 3V3 with Booster, 4/8 bit, I2C */ +// PCF2119_5V = 12 | (LCD_C_PAR | LCD_C_I2C), /**< PCF2119 5V no Booster, 4/8 bit, I2C */ + PT6314 = 13 | (LCD_C_PAR | LCD_C_SPI3_16 | LCD_C_CTR), /**< PT6314 VFD, 4/8 bit, SPI3 */ + SSD1803_3V3 = 14 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN), /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */ +// SSD1803_5V = 15 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR | LCD_C_PDN), /**< SSD1803 3V3 with Booster, 4/8 bit, I2C, SPI3 */ + ST7032_3V3 = 16 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7032 3V3 with Booster, 4/8 bit, SPI4, I2C */ + ST7032_5V = 17 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_CTR), /**< ST7032 5V no Booster, 4/8 bit, SPI4, I2C */ + ST7036_3V3 = 18 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 3V3 with Booster, 4/8 bit, SPI4, I2C */ + ST7036_5V = 19 | (LCD_C_PAR | LCD_C_SPI4 | LCD_C_I2C | LCD_C_BST | LCD_C_CTR), /**< ST7036 5V no Booster, 4/8 bit, SPI4, I2C */ + ST7066_ACM = 20 | (LCD_C_PAR | LCD_C_I2C), /**< ST7066 4/8 bit, I2C on ACM1602 using a PIC */ + ST7070 = 21 | (LCD_C_PAR | LCD_C_SPI3_8 | LCD_C_SPI4), /**< ST7070 4/8 bit, SPI3 */ + US2066_3V3 = 22 | (LCD_C_PAR | LCD_C_SPI3_24 | LCD_C_I2C | LCD_C_CTR | LCD_C_PDN), /**< US2066/SSD1311 3V3, 4/8 bit, I2C, SPI3 */ + WS0010 = 23 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_PDN) /**< WS0010/RS0010 OLED Controller, 4/8 bit, SPI3 */ +// WS0012 = 24 | (LCD_C_PAR | LCD_C_SPI3_10 | LCD_C_I2C | LCD_C_PDN), /**< WS0012 4/8 bit, SPI, I2C */ + }; @@ -266,6 +277,14 @@ }; + /** 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 ASCII_2_LCD (int c); + + #if(LCD_PRINTF != 1) /** Write a character to the LCD * @@ -436,7 +455,7 @@ _LCDCtrl_1, /*< Secondary */ }; - /** LCD Datalength control to select between 4 or 8 bit data/commands, used for native Serial interface */ + /** LCD Datalength control to select between 4 or 8 bit data/commands, mainly used for native Serial interface */ enum _LCDDatalength { _LCD_DL_4 = 0x00, /**< Datalength 4 bit */ _LCD_DL_8 = 0x10 /**< Datalength 8 bit */ @@ -529,17 +548,18 @@ virtual void _writeByte(int value); //Display type - LCDType _type; - int _nr_cols; + LCDType _type; // Display type + int _nr_cols; int _nr_rows; - int _addr_mode; - + int _addr_mode; // Addressing mode of LCDType, defines relation between display row,col and controller memory address + //Display mode LCDMode _currentMode; //Controller type - LCDCtrl _ctrl; - + LCDCtrl _ctrl; // Controller type + int _font; // ASCII character fonttable + //Controller select, mainly used for LCD40x4 _LCDCtrl_Idx _ctrl_idx; @@ -607,7 +627,6 @@ */ virtual void _setData(int value); - /** Regular mbed pins bus */ DigitalOut _rs, _e; @@ -616,7 +635,7 @@ /** Optional Hardware pins for the Backlight and LCD40x4 device * Default PinName value is NC, must be used as pointer to avoid issues with mbed lib and DigitalOut pins */ - DigitalOut *_bl, *_e2; + DigitalOut *_bl, *_e2; }; //----------- End TextLCD --------------- @@ -633,7 +652,7 @@ /** Create a TextLCD interface using an I2C PCF8574 (or PCF8574A) or MCP23008 portexpander * * @param i2c I2C Bus - * @param deviceAddress I2C slave address (PCF8574 or PCF8574A, default = PCF8574_SA0 = 0x40) + * @param deviceAddress I2C slave address (PCF8574 (or PCF8574A) or MCP23008 portexpander, default = PCF8574_SA0 = 0x40) * @param type Sets the panel size/addressing mode (default = LCD16x2) * @param ctrl LCD controller (default = HD44780) */ @@ -641,6 +660,13 @@ private: +/** Place the Enable bit in the databus shadowvalue + * Used for mbed I2C portexpander + * @param value data to write + * @return none + */ + void _setEnableBit(bool value); + /** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) * Set the Enable pin. */ @@ -656,24 +682,38 @@ */ virtual void _setBL(bool value); +/** Place the 4bit data in the databus shadowvalue + * Used for mbed I2C portexpander + * @param value data to write + * @return none + */ + void _setDataBits(int value); + /** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) * Set the databus value (4 bit). */ virtual void _setData(int value); - + +//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) + +/** Low level writes to LCD serial bus expander + */ + virtual void _writeByte(int value); + /** Write data to MCP23008 I2C portexpander * @param reg register to write * @param value data to write * @return none - * */ - void _write_register (int reg, int value); + void _writeRegister (int reg, int value); //I2C bus I2C *_i2c; char _slaveAddress; -// Internal bus mirror value for serial bus only +// Internal bus shadow value for serial bus only char _lcd_bus; }; #endif /* I2C Expander PCF8574/MCP23008 */ @@ -718,28 +758,82 @@ /** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) * Set the databus value (4 bit). */ - virtual void _setData(int value); - -/** Implementation of Low level writes to LCD Bus (serial expander) - * Set the CS pin (0 = select, 1 = deselect). - */ - virtual void _setCS(bool value); - -///** Low level writes to LCD serial bus only (serial expander) -// */ -// void _writeBus(); + virtual void _setData(int value); // SPI bus SPI *_spi; DigitalOut _cs; -// Internal bus mirror value for serial bus only +// Internal bus shadow value for serial bus only char _lcd_bus; }; #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 + * + */ +class TextLCD_I2C_N : public TextLCD_Base { +public: + /** Create a TextLCD interface using a controller with native I2C interface + * + * @param i2c I2C Bus + * @param deviceAddress I2C slave address (default = ST7032_SA = 0x7C) + * @param type Sets the panel size/addressing mode (default = LCD16x2) + * @param bl Backlight control line (optional, default = NC) + * @param ctrl LCD controller (default = ST7032_3V3) + */ + TextLCD_I2C_N(I2C *i2c, char deviceAddress = ST7032_SA, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7032_3V3); + + /** Destruct a TextLCD interface using a controller with native I2C interface + */ + virtual ~TextLCD_I2C_N(void); + +private: + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) + * Set the Enable pin. + */ + virtual void _setEnable(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) + * Set the RS pin ( 0 = Command, 1 = Data). + */ + virtual void _setRS(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) + * Set the BL pin (0 = Backlight Off, 1 = Backlight On). + */ + virtual void _setBL(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) + * Set the databus value (4 bit). + */ + virtual void _setData(int value); + +/** Low level writes to LCD serial bus only (serial native) + */ + virtual void _writeByte(int value); + +//I2C bus + I2C *_i2c; + char _slaveAddress; + +// controlbyte to select between data and command. Internal shadow value for serial bus only + char _controlbyte; + +//Backlight + DigitalOut *_bl; + +}; +#endif /* Native I2C */ +//---------- End TextLCD_I2C_N ------------ + + //--------- Start TextLCD_SPI_N ----------- #if(LCD_SPI_N == 1) /* Native SPI bus */ @@ -758,6 +852,9 @@ * @param ctrl LCD controller (default = ST7032_3V3) */ TextLCD_SPI_N(SPI *spi, PinName cs, PinName rs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7032_3V3); + + /** Destruct a TextLCD interface using a controller with native SPI4 interface + */ virtual ~TextLCD_SPI_N(void); private: @@ -800,7 +897,10 @@ //-------- Start TextLCD_SPI_N_3_8 -------- #if(LCD_SPI_N_3_8 == 1) /* Native SPI bus */ - +/** Create a TextLCD interface using a controller with native SPI3 8 bits interface + * This mode is supported by ST7070. + * + */ class TextLCD_SPI_N_3_8 : public TextLCD_Base { public: /** Create a TextLCD interface using a controller with a native SPI3 8 bits interface @@ -815,6 +915,8 @@ */ TextLCD_SPI_N_3_8(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7070); + /** Destruct a TextLCD interface using a controller with native SPI3_8 interface + */ virtual ~TextLCD_SPI_N_3_8(void); private: @@ -847,7 +949,7 @@ SPI *_spi; DigitalOut _cs; -// controlbyte to select between data and command. Internal value for serial bus only +// controlbyte to select between data and command. Internal shadow value for serial bus only char _controlbyte; //Backlight @@ -858,7 +960,6 @@ //------- 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.. @@ -879,6 +980,9 @@ * @param ctrl LCD controller (default = AIP31068) */ TextLCD_SPI_N_3_9(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068); + + /** Destruct a TextLCD interface using a controller with native SPI3_9 interface + */ virtual ~TextLCD_SPI_N_3_9(void); private: @@ -911,7 +1015,7 @@ SPI *_spi; DigitalOut _cs; -// controlbyte to select between data and command. Internal value for serial bus only +// controlbyte to select between data and command. Internal shadow value for serial bus only char _controlbyte; //Backlight @@ -940,6 +1044,9 @@ * @param ctrl LCD controller (default = AIP31068) */ TextLCD_SPI_N_3_10(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = AIP31068); + + /** Destruct a TextLCD interface using a controller with native SPI3_10 interface + */ virtual ~TextLCD_SPI_N_3_10(void); private: @@ -972,7 +1079,7 @@ SPI *_spi; DigitalOut _cs; -// controlbyte to select between data and command. Internal value for serial bus only +// controlbyte to select between data and command. Internal shadow value for serial bus only char _controlbyte; //Backlight @@ -985,7 +1092,6 @@ //------- Start TextLCD_SPI_N_3_16 --------- #if(LCD_SPI_N_3_16 == 1) /* Native SPI bus */ -//Code checked out on logic analyser. Not yet tested on hardware.. /** Create a TextLCD interface using a controller with native SPI3 16 bits interface * @@ -1001,6 +1107,9 @@ * @param ctrl LCD controller (default = PT6314) */ TextLCD_SPI_N_3_16(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = PT6314); + + /** Destruct a TextLCD interface using a controller with native SPI3_16 interface + */ virtual ~TextLCD_SPI_N_3_16(void); private: @@ -1033,7 +1142,7 @@ SPI *_spi; DigitalOut _cs; -// controlbyte to select between data and command. Internal value for serial bus only +// controlbyte to select between data and command. Internal shadow value for serial bus only char _controlbyte; //Backlight @@ -1062,6 +1171,9 @@ * @param ctrl LCD controller (default = SSD1803) */ TextLCD_SPI_N_3_24(SPI *spi, PinName cs, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = SSD1803_3V3); + + /** Destruct a TextLCD interface using a controller with native SPI3_24 interface + */ virtual ~TextLCD_SPI_N_3_24(void); private: @@ -1103,64 +1215,4 @@ #endif /* Native SPI bus */ //-------- End TextLCD_SPI_N_3_24 ---------- - -//--------- Start TextLCD_I2C_N ----------- -#if(LCD_I2C_N == 1) /* Native I2C */ - -/** Create a TextLCD interface using a controller with native I2C interface - * - */ -class TextLCD_I2C_N : public TextLCD_Base { -public: - /** Create a TextLCD interface using a controller with native I2C interface - * - * @param i2c I2C Bus - * @param deviceAddress I2C slave address (default = ST7032_SA = 0x7C) - * @param type Sets the panel size/addressing mode (default = LCD16x2) - * @param bl Backlight control line (optional, default = NC) - * @param ctrl LCD controller (default = ST7032_3V3) - */ - TextLCD_I2C_N(I2C *i2c, char deviceAddress = ST7032_SA, LCDType type = LCD16x2, PinName bl = NC, LCDCtrl ctrl = ST7032_3V3); - virtual ~TextLCD_I2C_N(void); - -private: - -/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) - * Set the Enable pin. - */ - virtual void _setEnable(bool value); - -/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) - * Set the RS pin ( 0 = Command, 1 = Data). - */ - virtual void _setRS(bool value); - -/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) - * Set the BL pin (0 = Backlight Off, 1 = Backlight On). - */ - virtual void _setBL(bool value); - -/** Implementation of pure Virtual Low level writes to LCD Bus (serial native) - * Set the databus value (4 bit). - */ - virtual void _setData(int value); - -/** Low level writes to LCD serial bus only (serial native) - */ - virtual void _writeByte(int value); - -//I2C bus - I2C *_i2c; - char _slaveAddress; - -// controlbyte to select between data and command. Internal value for serial bus only - char _controlbyte; - -//Backlight - DigitalOut *_bl; - -}; -#endif /* Native I2C */ -//---------- End TextLCD_I2C_N ------------ - #endif