Basic Library for Adafruit 1.44" Screen with ST7735 driver

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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 
00031 #define ST7735_TFTWIDTH  128
00032 #define ST7735_TFTHEIGHT 128 //make 160 for 1.8" screen, 128 for 1.44" screen
00033 
00034 #define ST7735_NOP     0x00
00035 #define ST7735_SWRESET 0x01
00036 #define ST7735_RDDID   0x04
00037 #define ST7735_RDDST   0x09
00038 
00039 #define ST7735_SLPIN   0x10
00040 #define ST7735_SLPOUT  0x11
00041 #define ST7735_PTLON   0x12
00042 #define ST7735_NORON   0x13
00043 
00044 #define ST7735_INVOFF  0x20
00045 #define ST7735_INVON   0x21
00046 #define ST7735_DISPOFF 0x28
00047 #define ST7735_DISPON  0x29
00048 #define ST7735_CASET   0x2A
00049 #define ST7735_RASET   0x2B
00050 #define ST7735_RAMWR   0x2C
00051 #define ST7735_RAMRD   0x2E
00052 
00053 #define ST7735_PTLAR   0x30
00054 #define ST7735_COLMOD  0x3A
00055 #define ST7735_MADCTL  0x36
00056 
00057 #define ST7735_FRMCTR1 0xB1
00058 #define ST7735_FRMCTR2 0xB2
00059 #define ST7735_FRMCTR3 0xB3
00060 #define ST7735_INVCTR  0xB4
00061 #define ST7735_DISSET5 0xB6
00062 
00063 #define ST7735_PWCTR1  0xC0
00064 #define ST7735_PWCTR2  0xC1
00065 #define ST7735_PWCTR3  0xC2
00066 #define ST7735_PWCTR4  0xC3
00067 #define ST7735_PWCTR5  0xC4
00068 #define ST7735_VMCTR1  0xC5
00069 
00070 #define ST7735_RDID1   0xDA
00071 #define ST7735_RDID2   0xDB
00072 #define ST7735_RDID3   0xDC
00073 #define ST7735_RDID4   0xDD
00074 
00075 #define ST7735_PWCTR6  0xFC
00076 
00077 #define ST7735_GMCTRP1 0xE0
00078 #define ST7735_GMCTRN1 0xE1
00079 
00080 // color definitions
00081 #define ST7735_BLACK   0x0000
00082 #define ST7735_BLUE    0x001F
00083 #define ST7735_RED     0xF800
00084 #define ST7735_GREEN   0x07E0
00085 #define ST7735_CYAN    0x07FF
00086 #define ST7735_MAGENTA 0xF81F
00087 #define ST7735_YELLOW  0xFFE0  
00088 #define ST7735_WHITE   0xFFFF
00089 #define ST7735_ORANGE  0xFD20
00090 
00091 
00092 class Adafruit_ST7735 : public Adafruit_GFX {
00093 
00094  public:
00095 
00096   Adafruit_ST7735(PinName mosi, PinName miso, PinName clk, PinName CS, PinName RS, PinName RST);
00097 
00098   void     initB(void);                             // for ST7735B displays
00099   void     initR(uint8_t options = INITR_GREENTAB); // for ST7735R
00100   void     initS(void);                             // for S6D02A1 displays
00101   void     setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1);
00102   void     pushColor(uint16_t color);
00103 
00104   void     fillScreen(uint16_t color);
00105   void     drawPixel(int16_t x, int16_t y, uint16_t color);
00106   void     drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
00107   void     drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
00108   void     fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
00109   void     invertDisplay(boolean i);
00110 
00111   void     setRotation(uint8_t r);
00112   void     drawRect(int16_t x0, int16_t y0, int16_t x1,int16_t y1,uint16_t color);//added by Sarvesh
00113   void     drawCircle(int16_t x0, int16_t y0,int16_t r,uint16_t color);//added by Sarvesh
00114   uint16_t Color565(uint8_t r, uint8_t g, uint8_t b);
00115   //void display();
00116 
00117  private:
00118 
00119   void     spiwrite(uint8_t),
00120            writecommand(uint8_t c),
00121            writedata(uint8_t d),
00122            commandList(uint8_t *addr),
00123            commonInit(uint8_t *cmdList);
00124 
00125   uint8_t  colstart, rowstart; // some displays need this changed
00126 
00127     SPI lcdPort;            // does SPI MOSI, MISO and SCK
00128     DigitalOut _cs;         // does SPI CE
00129     DigitalOut _rs;         // register/date select
00130     DigitalOut _rst;        // does 3310 LCD_RST
00131 };
00132 
00133 #endif