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 // some flags for initR() :(
00029 #define INITR_GREENTAB 0x0
00030 #define INITR_REDTAB   0x1
00031 #define INITR_BLACKTAB   0x2
00032 
00033 #define INITR_18GREENTAB    INITR_GREENTAB
00034 #define INITR_18REDTAB      INITR_REDTAB
00035 #define INITR_18BLACKTAB    INITR_BLACKTAB
00036 #define INITR_144GREENTAB   0x1
00037 
00038 #define ST7735_TFTWIDTH  128
00039 // for 1.44" display
00040 #define ST7735_TFTHEIGHT_144 128
00041 // for 1.8" display
00042 #define ST7735_TFTHEIGHT_18  160
00043 #define ST7735_TFTHEIGHT  160
00044 
00045 #define ST7735_NOP     0x00
00046 #define ST7735_SWRESET 0x01
00047 #define ST7735_RDDID   0x04
00048 #define ST7735_RDDST   0x09
00049 
00050 #define ST7735_SLPIN   0x10
00051 #define ST7735_SLPOUT  0x11
00052 #define ST7735_PTLON   0x12
00053 #define ST7735_NORON   0x13
00054 
00055 #define ST7735_INVOFF  0x20
00056 #define ST7735_INVON   0x21
00057 #define ST7735_DISPOFF 0x28
00058 #define ST7735_DISPON  0x29
00059 #define ST7735_CASET   0x2A
00060 #define ST7735_RASET   0x2B
00061 #define ST7735_RAMWR   0x2C
00062 #define ST7735_RAMRD   0x2E
00063 
00064 #define ST7735_PTLAR   0x30
00065 #define ST7735_COLMOD  0x3A
00066 #define ST7735_MADCTL  0x36
00067 
00068 #define ST7735_FRMCTR1 0xB1
00069 #define ST7735_FRMCTR2 0xB2
00070 #define ST7735_FRMCTR3 0xB3
00071 #define ST7735_INVCTR  0xB4
00072 #define ST7735_DISSET5 0xB6
00073 
00074 #define ST7735_PWCTR1  0xC0
00075 #define ST7735_PWCTR2  0xC1
00076 #define ST7735_PWCTR3  0xC2
00077 #define ST7735_PWCTR4  0xC3
00078 #define ST7735_PWCTR5  0xC4
00079 #define ST7735_VMCTR1  0xC5
00080 
00081 #define ST7735_RDID1   0xDA
00082 #define ST7735_RDID2   0xDB
00083 #define ST7735_RDID3   0xDC
00084 #define ST7735_RDID4   0xDD
00085 
00086 #define ST7735_PWCTR6  0xFC
00087 
00088 #define ST7735_GMCTRP1 0xE0
00089 #define ST7735_GMCTRN1 0xE1
00090 
00091 // Color definitions
00092 #define ST7735_BLACK   0x0000
00093 #define ST7735_BLUE    0x001F
00094 #define ST7735_RED     0xF800
00095 #define ST7735_GREEN   0x07E0
00096 #define ST7735_CYAN    0x07FF
00097 #define ST7735_MAGENTA 0xF81F
00098 #define ST7735_YELLOW  0xFFE0
00099 #define ST7735_WHITE   0xFFFF
00100 
00101 
00102 class Adafruit_ST7735 : public Adafruit_GFX {
00103 
00104  public:
00105 
00106   Adafruit_ST7735(PinName mosi, PinName miso, PinName sck, PinName CS, PinName RS, PinName RST);
00107 
00108   void     initB(void);                             // for ST7735B displays
00109   void     initR(uint8_t options = INITR_GREENTAB); // for ST7735R
00110   void     setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1);
00111   void     pushColor(uint16_t color);
00112 
00113   void     fillScreen(uint16_t color);
00114   void     drawPixel(int16_t x, int16_t y, uint16_t color);
00115   void     drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
00116   void     drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
00117   void     fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
00118   void     invertDisplay(boolean i);
00119 
00120   void     setRotation(uint8_t r);
00121   uint16_t Color565(uint8_t r, uint8_t g, uint8_t b);
00122 
00123  private:
00124   uint8_t  tabcolor;
00125   void     spiwrite(uint8_t),
00126            writecommand(uint8_t c),
00127            writedata(uint8_t d),
00128            commandList(uint8_t *addr),
00129            commonInit(uint8_t *cmdList);
00130 
00131   uint8_t  colstart, rowstart; // some displays need this changed
00132 
00133     SPI lcdPort;            // does SPI MOSI, MISO and SCK
00134     DigitalOut _cs;         // does SPI CE
00135     DigitalOut _rs;         // register/date select
00136     DigitalOut _rst;        // does 3310 LCD_RST
00137 };
00138 
00139 #endif