display funciona!
Dependents: 2018_I2C_LCD_03 TBI_FIAT_FEEDFORWARD Ignition Can_between_NUCLEOS_LCD ... more
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Diff: TextLCD.h
- Revision:
- 29:a3663151aa65
- Parent:
- 28:30fa94f7341c
- Child:
- 30:033048611c01
--- a/TextLCD.h Sat Jun 14 17:04:25 2014 +0000 +++ b/TextLCD.h Tue Jun 17 17:41:47 2014 +0000 @@ -10,6 +10,7 @@ * 2014, v08: WH, Refactored in Base and Derived Classes to deal with mbed lib change regarding 'NC' defined DigitalOut 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: WH, Added support for native I2C controllers such as PCF21XX, improved the _initCtrl() method to deal with differences between all supported controllers * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -69,14 +70,15 @@ //LCD and serial portexpanders should be wired accordingly // //Select Hardware module (one option only) -#define DEFAULT 1 -#define ADAFRUIT 0 +#define DEFAULT 0 +#define ADAFRUIT 1 #define DFROBOT 0 #if (DEFAULT==1) -//Definitions for hardware used by WH +//Definitions for default (WH) mapping between serial port expander pins and LCD controller //This hardware supports the I2C bus expander (PCF8574/PCF8574A or MCP23008) and SPI bus expander (74595) interfaces +//See https://mbed.org/cookbook/Text-LCD-Enhanced // //Note: LCD RW pin must be connected to GND // E2 is used for LCD40x4 (second controller) @@ -98,8 +100,9 @@ #endif #if (ADAFRUIT==1) -//Definitions for i2cspilcdbackpack from Adafruit, See http://www.ladyada.net/products/i2cspilcdbackpack +//Definitions for Adafruit i2cspilcdbackpack mapping between serial port expander pins and LCD controller //This hardware supports both an I2C expander (MCP23008) and an SPI expander (74595) selectable by a jumper. +//See http://www.ladyada.net/products/i2cspilcdbackpack // //Note: LCD RW pin must be kept LOW // E2 is not available on this hardware and so it does not support LCD40x4 (second controller) @@ -121,8 +124,9 @@ #endif #if (DFROBOT==1) -//Definitions for LCD2004 Module from DFROBOT, See http://arduino-info.wikispaces.com/LCD-Blue-I2C +//Definitions for DFROBOT LCD2004 Module mapping between serial port expander pins and LCD controller //This hardware uses PCF8574 and is different from earlier/different Arduino I2C LCD displays +//See http://arduino-info.wikispaces.com/LCD-Blue-I2C // //Note: LCD RW pin must be kept LOW // E2 is not available on default Arduino hardware and so it does not support LCD40x4 (second controller) @@ -205,6 +209,9 @@ /* ST7032I I2C slave address */ #define ST7032_SA 0x7C +/* PCF21XX I2C slave address */ +#define PCF21XX_SA0 0x74 +#define PCF21XX_SA1 0x76 /** Some sample User Defined Chars 5x7 dots */ const char udc_ae[] = {0x00, 0x00, 0x1B, 0x05, 0x1F, 0x14, 0x1F, 0x00}; //æ @@ -252,10 +259,10 @@ //const char udc_ch_2[] = {0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f, 0x00, 0x1f}; // Hor bars 4 (inverted) //const char udc_ch_3[] = {0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15}; // Ver bars 3 //const char udc_ch_4[] = {0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a}; // Ver bars 3 (inverted) -//const char udc_ch_yr[] = {0x08, 0x0f, 0x12, 0x0f, 0x0a, 0x1f, 0x02, 0x02}; // Year (kanji) -//const char udc_ch_mo[] = {0x0f, 0x09, 0x0f, 0x09, 0x0f, 0x09, 0x09, 0x13}; // Month (kanji) -//const char udc_ch_dy[] = {0x1f, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, 0x1F}; // Day (kanji) -//const char udc_ch_mi[] = {0x0C, 0x0a, 0x11, 0x1f, 0x09, 0x09, 0x09, 0x13}; // minute (kanji) +//const char udc_ch_yr[] = {0x08, 0x0f, 0x12, 0x0f, 0x0a, 0x1f, 0x02, 0x02}; // Year (kana) +//const char udc_ch_mo[] = {0x0f, 0x09, 0x0f, 0x09, 0x0f, 0x09, 0x09, 0x13}; // Month (kana) +//const char udc_ch_dy[] = {0x1f, 0x11, 0x11, 0x1f, 0x11, 0x11, 0x11, 0x1F}; // Day (kana) +//const char udc_ch_mi[] = {0x0C, 0x0a, 0x11, 0x1f, 0x09, 0x09, 0x09, 0x13}; // minute (kana) /** A TextLCD interface for driving 4-bit HD44780-based LCDs @@ -272,32 +279,37 @@ LCD8x1, /**< 8x1 LCD panel */ LCD8x2, /**< 8x2 LCD panel */ LCD8x2B, /**< 8x2 LCD panel (actually 16x1) */ +// LCD12x1, /**< 12x1 LCD panel */ +// LCD12x1B, /**< 12x1 LCD panel, special mode PCF21XX */ LCD12x2, /**< 12x2 LCD panel */ -// LCD12x3, /**< 12x3 LCD panel, special mode PCF21XX */ + LCD12x3B, /**< 12x3 LCD panel, special mode PCF21XX */ LCD12x4, /**< 12x4 LCD panel */ -// LCD12x4B, /**< 12x4 LCD panel, special mode PCF21XX */ + LCD12x4B, /**< 12x4 LCD panel, special mode PCF21XX */ LCD16x1, /**< 16x1 LCD panel (actually 8x2) */ LCD16x2, /**< 16x2 LCD panel (default) */ LCD16x2B, /**< 16x2 LCD panel alternate addressing */ -// LCD16x3, /**< 16x3 LCD panel, special mode ST7036 */ +// LCD16x3B, /**< 16x3 LCD panel, special mode ST7036 */ LCD16x4, /**< 16x4 LCD panel */ +// LCD20x1, /**< 20x1 LCD panel */ LCD20x2, /**< 20x2 LCD panel */ LCD20x4, /**< 20x4 LCD panel */ + LCD24x4B, /**< 24x4 LCD panel, special mode KS0078 */ + LCD24x1, /**< 24x1 LCD panel */ LCD24x2, /**< 24x2 LCD panel */ - LCD24x4, /**< 24x4 LCD panel, special mode KS0078 */ LCD40x2, /**< 40x2 LCD panel */ LCD40x4 /**< 40x4 LCD panel, Two controller version */ }; /** LCD Controller Device */ enum LCDCtrl { - HD44780, /**< HD44780 (default) */ - WS0010, /**< WS0010 OLED Controller */ - ST7036, /**< ST7036 3V3 with Booster */ - ST7032_3V3, /**< ST7032 3V3 with Booster */ - ST7032_5V /**< ST7032 5V no Booster */ -// PCF210X, /**< PCF210X 5V no Booster */ -// PCF211X /**< PCF211X 3V3 with Booster */ + HD44780, /**< HD44780 (default) */ + WS0010, /**< WS0010 OLED Controller, 4/8 bit */ + ST7036, /**< ST7036 3V3 with Booster, 4/8 bit, SPI */ + ST7032_3V3, /**< ST7032 3V3 with Booster, 4/8 bit, SPI, I2C */ + ST7032_5V, /**< ST7032 5V no Booster, 4/8 bit, SPI, I2C */ + KS0078, /**< KS0078 24x3 support */ + PCF21XX_3V3, /**< PCF21XX 3V3 with Booster, 4/8 bit, I2C */ +// PCF21XX_5V /**< PCF21XX 5V no Booster, 4/8 bit, I2C */ }; @@ -338,7 +350,7 @@ int printf(const char* format, ...); #endif - /** Locate to a screen column and row + /** 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 @@ -406,7 +418,9 @@ */ void setUDC(unsigned char c, char *udc_data); - +//test + void _initCtrl(); + protected: /** LCD controller select, mainly used for LCD40x4 @@ -429,29 +443,70 @@ virtual int _putc(int value); virtual int _getc(); -/** Low level methods for LCD controller +/** Low level method for LCD controller */ void _init(); - void _initCtrl(); + +/** Low level initialisation method for LCD controller + */ +// void _initCtrl(); + +/** Low level character address set method + */ int _address(int column, int row); + +/** Low level cursor enable or disable method + */ void _setCursor(LCDCursor show); + +/** Low level method to store user defined characters for current controller + */ void _setUDC(unsigned char c, char *udc_data); + +/** Low level method to restore the cursortype and display mode for current controller + */ void _setCursorAndDisplayMode(LCDMode displayMode, LCDCursor cursorType); -/** Low level write operations to LCD controller + +/** Low level nibble write operation to LCD controller (serial or parallel) */ void _writeNibble(int value); - virtual void _writeByte(int value); + +/** Low level command byte write operation to LCD controller. + * Methods resets the RS bit and provides the required timing for the command. + */ void _writeCommand(int command); + +/** Low level data byte write operation to LCD controller (serial or parallel). + * Methods sets the RS bit and provides the required timing for the data. + */ void _writeData(int data); + +/** Pure Virtual Low level writes to LCD Bus (serial or parallel) + * Set the Enable pin. + */ + virtual void _setEnable(bool value) = 0; + /** Pure Virtual Low level writes to LCD Bus (serial or parallel) - */ - virtual void _setEnable(bool value) = 0; + * Set the RS pin ( 0 = Command, 1 = Data). + */ virtual void _setRS(bool value) = 0; + +/** Pure Virtual Low level writes to LCD Bus (serial or parallel) + * Set the BL pin (0 = Backlight Off, 1 = Backlight On). + */ virtual void _setBL(bool value) = 0; + +/** Pure Virtual Low level writes to LCD Bus (serial or parallel) + * Set the databus value (4 bit). + */ virtual void _setData(int value) = 0; +/** Low level byte write operation to LCD controller (serial or parallel) + * Depending on the RS pin this byte will be interpreted as data or command + */ + virtual void _writeByte(int value); //Display type LCDType _type; @@ -503,12 +558,28 @@ virtual ~TextLCD(); private: -//Low level writes to LCD Bus (serial or parallel) + +/** Implementation of pure Virtual Low level writes to LCD Bus (parallel) + * Set the Enable pin. + */ virtual void _setEnable(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (parallel) + * Set the RS pin ( 0 = Command, 1 = Data). + */ virtual void _setRS(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (parallel) + * 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 (parallel) + * Set the databus value (4 bit). + */ virtual void _setData(int value); + /** Regular mbed pins bus */ DigitalOut _rs, _e; @@ -542,13 +613,34 @@ TextLCD_I2C(I2C *i2c, char deviceAddress = PCF8574_SA0, LCDType type = LCD16x2, LCDCtrl ctrl = HD44780); private: -//Low level writes to LCD Bus (serial or parallel) + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the Enable pin. + */ virtual void _setEnable(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the RS pin ( 0 = Command, 1 = Data). + */ virtual void _setRS(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the BL pin (0 = Backlight Off, 1 = Backlight On). + */ virtual void _setBL(bool value); - virtual void _setData(int value); - -// Write data to MCP23008 I2C portexpander + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the databus value (4 bit). + */ + virtual void _setData(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); //I2C bus @@ -584,15 +676,35 @@ private: -//Low level writes to LCD Bus (serial or parallel) + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the Enable pin. + */ virtual void _setEnable(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * Set the RS pin ( 0 = Command, 1 = Data). + */ virtual void _setRS(bool value); + +/** Implementation of pure Virtual Low level writes to LCD Bus (serial expander) + * 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 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 - void _writeBus(); +///** Low level writes to LCD serial bus only (serial expander) +// */ +// void _writeBus(); // SPI bus SPI *_spi; @@ -627,11 +739,31 @@ virtual ~TextLCD_SPI_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); + // SPI bus SPI *_spi; @@ -663,12 +795,32 @@ 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;