Adafruit_ST7735.h

00001 /***************************************************
00002   This is a library for the Adafruit 1.8" SPI display.
00003   This library works with the Adafruit 1.8" TFT Breakout w/SD card
00004   ----> http://www.adafruit.com/products/358
00005   as well as Adafruit raw 1.8" TFT display
00006   ----> http://www.adafruit.com/products/618
00007  
00008   Check out the links above for our tutorials and wiring diagrams
00009   These displays use SPI to communicate, 4 or 5 pins are required to
00010   interface (RST is optional)
00011   Adafruit invests time and resources providing this open source code,
00012   please support Adafruit and open-source hardware by purchasing
00013   products from Adafruit!
00014 
00015   Written by Limor Fried/Ladyada for Adafruit Industries.
00016   MIT license, all text above must be included in any redistribution
00017  ****************************************************/
00018 
00019 #ifndef _ADAFRUIT_ST7735H_
00020 #define _ADAFRUIT_ST7735H_
00021 
00022 #include "mbed.h"
00023 #include "Adafruit_GFX.h"
00024 
00025 #define boolean bool
00026 
00027 // some flags for initR() :(
00028 #define INITR_GREENTAB 0x0
00029 #define INITR_REDTAB   0x1
00030 #define INITR_BLACKTAB   0x2
00031 
00032 #define ST7735_TFTWIDTH  128
00033 #define ST7735_TFTHEIGHT 160
00034 
00035 #define ST7735_NOP     0x00
00036 #define ST7735_SWRESET 0x01
00037 #define ST7735_RDDID   0x04
00038 #define ST7735_RDDST   0x09
00039 
00040 #define ST7735_SLPIN   0x10
00041 #define ST7735_SLPOUT  0x11
00042 #define ST7735_PTLON   0x12
00043 #define ST7735_NORON   0x13
00044 
00045 #define ST7735_INVOFF  0x20
00046 #define ST7735_INVON   0x21
00047 #define ST7735_DISPOFF 0x28
00048 #define ST7735_DISPON  0x29
00049 #define ST7735_CASET   0x2A
00050 #define ST7735_RASET   0x2B
00051 #define ST7735_RAMWR   0x2C
00052 #define ST7735_RAMRD   0x2E
00053 
00054 #define ST7735_PTLAR   0x30
00055 #define ST7735_COLMOD  0x3A
00056 #define ST7735_MADCTL  0x36
00057 
00058 #define ST7735_FRMCTR1 0xB1
00059 #define ST7735_FRMCTR2 0xB2
00060 #define ST7735_FRMCTR3 0xB3
00061 #define ST7735_INVCTR  0xB4
00062 #define ST7735_DISSET5 0xB6
00063 
00064 #define ST7735_PWCTR1  0xC0
00065 #define ST7735_PWCTR2  0xC1
00066 #define ST7735_PWCTR3  0xC2
00067 #define ST7735_PWCTR4  0xC3
00068 #define ST7735_PWCTR5  0xC4
00069 #define ST7735_VMCTR1  0xC5
00070 
00071 #define ST7735_RDID1   0xDA
00072 #define ST7735_RDID2   0xDB
00073 #define ST7735_RDID3   0xDC
00074 #define ST7735_RDID4   0xDD
00075 
00076 #define ST7735_PWCTR6  0xFC
00077 
00078 #define ST7735_GMCTRP1 0xE0
00079 #define ST7735_GMCTRN1 0xE1
00080 
00081 // Color definitions
00082 #define ST7735_BLACK   0x0000
00083 #define ST7735_BLUE    0x001F
00084 #define ST7735_RED     0xF800
00085 #define ST7735_GREEN   0x07E0
00086 #define ST7735_CYAN    0x07FF
00087 #define ST7735_MAGENTA 0xF81F
00088 #define ST7735_YELLOW  0xFFE0  
00089 #define ST7735_WHITE   0xFFFF
00090 
00091 
00092 class Adafruit_ST7735 : public Adafruit_GFX {
00093 
00094  public:
00095 
00096   Adafruit_ST7735(PinName mosi, PinName miso, PinName sck, PinName CS, PinName RS, PinName RST);
00097 
00098   void     initB(void);                             // for ST7735B displays
00099   void     initS(void);                             // for ST7735S displays
00100   void     initR(uint8_t options = INITR_GREENTAB); // for ST7735R
00101   void     setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1);
00102   void     pushColor(uint16_t color);
00103   virtual void     fillScreen(uint16_t color);
00104   virtual void     drawPixel(int16_t x, int16_t y, uint16_t color);
00105   virtual void     drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
00106   virtual void     drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
00107   virtual void     fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
00108   void     setRotation(uint8_t r);
00109   void     invertDisplay(bool i);
00110   uint16_t Color565(uint8_t r, uint8_t g, uint8_t b);
00111   int DrawBitmapFile(const char *Name_BMP);
00112   int DrawBitmapFile(unsigned int x, unsigned int y, const char *Name_BMP);
00113   
00114  private:
00115 
00116   void     spiwrite(uint8_t),
00117            writecommand(uint8_t c),
00118            writedata(uint8_t d),
00119            commandList(uint8_t *addr),
00120            commonInit(uint8_t *cmdList);
00121            
00122 
00123   uint8_t  colstart, rowstart; // some displays need this changed
00124 
00125     SPI lcdPort;            // does SPI MOSI, MISO and SCK
00126     DigitalOut _cs;         // does SPI CE
00127     DigitalOut _rs;         // register/date select
00128     DigitalOut _rst;        // does 3310 LCD_RST
00129 };
00130 
00131 #endif