Paulo Bruckmann / Adafruit_ST7735

Added new display module GREENTAB2 (3.3v compact blue board, 8 pin no SD card)

Adafruit_ST7735.cpp@5:9c04464cd1b4, 2015-11-22 (annotated)

Committer:
SomeRandomBloke
Date:
Sun Nov 22 13:15:07 2015 +0000
Revision:
5:9c04464cd1b4
Parent:
4:2123ea52a4d9
Child:
6:c964b41674fc
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Who changed what in which revision?

UserRevisionLine numberNew contents of line
SomeRandomBloke 0:99ee879ef5a9 1 /***************************************************
SomeRandomBloke 0:99ee879ef5a9 2 This is a library for the Adafruit 1.8" SPI display.
SomeRandomBloke 0:99ee879ef5a9 3 This library works with the Adafruit 1.8" TFT Breakout w/SD card
SomeRandomBloke 0:99ee879ef5a9 4 ----> http://www.adafruit.com/products/358
SomeRandomBloke 0:99ee879ef5a9 5 as well as Adafruit raw 1.8" TFT display
SomeRandomBloke 0:99ee879ef5a9 6 ----> http://www.adafruit.com/products/618
SomeRandomBloke 0:99ee879ef5a9 7
SomeRandomBloke 0:99ee879ef5a9 8 Check out the links above for our tutorials and wiring diagrams
SomeRandomBloke 0:99ee879ef5a9 9 These displays use SPI to communicate, 4 or 5 pins are required to
SomeRandomBloke 0:99ee879ef5a9 10 interface (RST is optional)
SomeRandomBloke 0:99ee879ef5a9 11 Adafruit invests time and resources providing this open source code,
SomeRandomBloke 0:99ee879ef5a9 12 please support Adafruit and open-source hardware by purchasing
SomeRandomBloke 0:99ee879ef5a9 13 products from Adafruit!
SomeRandomBloke 0:99ee879ef5a9 14
SomeRandomBloke 0:99ee879ef5a9 15 Written by Limor Fried/Ladyada for Adafruit Industries.
SomeRandomBloke 0:99ee879ef5a9 16 MIT license, all text above must be included in any redistribution
SomeRandomBloke 0:99ee879ef5a9 17 ****************************************************/
SomeRandomBloke 0:99ee879ef5a9 18
SomeRandomBloke 0:99ee879ef5a9 19 #include "mbed.h"
SomeRandomBloke 0:99ee879ef5a9 20 #include "Adafruit_ST7735.h"
SomeRandomBloke 0:99ee879ef5a9 21
SomeRandomBloke 4:2123ea52a4d9 22 inline uint16_t swapcolor(uint16_t x) {
SomeRandomBloke 4:2123ea52a4d9 23 return (x << 11) | (x & 0x07E0) | (x >> 11);
SomeRandomBloke 4:2123ea52a4d9 24 }
SomeRandomBloke 4:2123ea52a4d9 25
SomeRandomBloke 0:99ee879ef5a9 26 // Constructor
SomeRandomBloke 0:99ee879ef5a9 27 Adafruit_ST7735::Adafruit_ST7735(PinName mosi, PinName miso, PinName sck, PinName cs, PinName rs, PinName rst)
SomeRandomBloke 1:226fd3534967 28 : lcdPort(mosi, miso, sck), _cs(cs), _rs(rs), _rst(rst), Adafruit_GFX(ST7735_TFTWIDTH, ST7735_TFTHEIGHT)
SomeRandomBloke 0:99ee879ef5a9 29 { }
SomeRandomBloke 0:99ee879ef5a9 30
SomeRandomBloke 0:99ee879ef5a9 31
SomeRandomBloke 0:99ee879ef5a9 32 void Adafruit_ST7735::writecommand(uint8_t c)
SomeRandomBloke 0:99ee879ef5a9 33 {
SomeRandomBloke 0:99ee879ef5a9 34 _rs = 0;
SomeRandomBloke 0:99ee879ef5a9 35 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 36 lcdPort.write( c );
SomeRandomBloke 0:99ee879ef5a9 37 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 38 }
SomeRandomBloke 0:99ee879ef5a9 39
SomeRandomBloke 0:99ee879ef5a9 40
SomeRandomBloke 0:99ee879ef5a9 41 void Adafruit_ST7735::writedata(uint8_t c)
SomeRandomBloke 0:99ee879ef5a9 42 {
SomeRandomBloke 0:99ee879ef5a9 43 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 44 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 45 lcdPort.write( c );
SomeRandomBloke 0:99ee879ef5a9 46
SomeRandomBloke 0:99ee879ef5a9 47 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 48 }
SomeRandomBloke 0:99ee879ef5a9 49
SomeRandomBloke 0:99ee879ef5a9 50
SomeRandomBloke 0:99ee879ef5a9 51 // Rather than a bazillion writecommand() and writedata() calls, screen
SomeRandomBloke 0:99ee879ef5a9 52 // initialization commands and arguments are organized in these tables
SomeRandomBloke 0:99ee879ef5a9 53 // stored in PROGMEM. The table may look bulky, but that's mostly the
SomeRandomBloke 0:99ee879ef5a9 54 // formatting -- storage-wise this is hundreds of bytes more compact
SomeRandomBloke 0:99ee879ef5a9 55 // than the equivalent code. Companion function follows.
SomeRandomBloke 0:99ee879ef5a9 56 #define DELAY 0x80
SomeRandomBloke 0:99ee879ef5a9 57 static unsigned char
SomeRandomBloke 3:5cd5edbf5b72 58 Bcmd[] = { // Initialization commands for 7735B screens
SomeRandomBloke 3:5cd5edbf5b72 59 18, // 18 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 60 ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 61 50, // 50 ms delay
SomeRandomBloke 3:5cd5edbf5b72 62 ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, no args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 63 255, // 255 = 500 ms delay
SomeRandomBloke 3:5cd5edbf5b72 64 ST7735_COLMOD , 1+DELAY, // 3: Set color mode, 1 arg + delay:
SomeRandomBloke 3:5cd5edbf5b72 65 0x05, // 16-bit color
SomeRandomBloke 3:5cd5edbf5b72 66 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 67 ST7735_FRMCTR1, 3+DELAY, // 4: Frame rate control, 3 args + delay:
SomeRandomBloke 3:5cd5edbf5b72 68 0x00, // fastest refresh
SomeRandomBloke 3:5cd5edbf5b72 69 0x06, // 6 lines front porch
SomeRandomBloke 3:5cd5edbf5b72 70 0x03, // 3 lines back porch
SomeRandomBloke 3:5cd5edbf5b72 71 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 72 ST7735_MADCTL , 1 , // 5: Memory access ctrl (directions), 1 arg:
SomeRandomBloke 3:5cd5edbf5b72 73 0x08, // Row addr/col addr, bottom to top refresh
SomeRandomBloke 3:5cd5edbf5b72 74 ST7735_DISSET5, 2 , // 6: Display settings #5, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 75 0x15, // 1 clk cycle nonoverlap, 2 cycle gate
SomeRandomBloke 3:5cd5edbf5b72 76 // rise, 3 cycle osc equalize
SomeRandomBloke 3:5cd5edbf5b72 77 0x02, // Fix on VTL
SomeRandomBloke 3:5cd5edbf5b72 78 ST7735_INVCTR , 1 , // 7: Display inversion control, 1 arg:
SomeRandomBloke 3:5cd5edbf5b72 79 0x0, // Line inversion
SomeRandomBloke 3:5cd5edbf5b72 80 ST7735_PWCTR1 , 2+DELAY, // 8: Power control, 2 args + delay:
SomeRandomBloke 3:5cd5edbf5b72 81 0x02, // GVDD = 4.7V
SomeRandomBloke 3:5cd5edbf5b72 82 0x70, // 1.0uA
SomeRandomBloke 3:5cd5edbf5b72 83 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 84 ST7735_PWCTR2 , 1 , // 9: Power control, 1 arg, no delay:
SomeRandomBloke 3:5cd5edbf5b72 85 0x05, // VGH = 14.7V, VGL = -7.35V
SomeRandomBloke 3:5cd5edbf5b72 86 ST7735_PWCTR3 , 2 , // 10: Power control, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 87 0x01, // Opamp current small
SomeRandomBloke 3:5cd5edbf5b72 88 0x02, // Boost frequency
SomeRandomBloke 3:5cd5edbf5b72 89 ST7735_VMCTR1 , 2+DELAY, // 11: Power control, 2 args + delay:
SomeRandomBloke 3:5cd5edbf5b72 90 0x3C, // VCOMH = 4V
SomeRandomBloke 3:5cd5edbf5b72 91 0x38, // VCOML = -1.1V
SomeRandomBloke 3:5cd5edbf5b72 92 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 93 ST7735_PWCTR6 , 2 , // 12: Power control, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 94 0x11, 0x15,
SomeRandomBloke 3:5cd5edbf5b72 95 ST7735_GMCTRP1,16 , // 13: Magical unicorn dust, 16 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 96 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what
SomeRandomBloke 3:5cd5edbf5b72 97 0x21, 0x1B, 0x13, 0x19, // these config values represent)
SomeRandomBloke 3:5cd5edbf5b72 98 0x17, 0x15, 0x1E, 0x2B,
SomeRandomBloke 3:5cd5edbf5b72 99 0x04, 0x05, 0x02, 0x0E,
SomeRandomBloke 3:5cd5edbf5b72 100 ST7735_GMCTRN1,16+DELAY, // 14: Sparkles and rainbows, 16 args + delay:
SomeRandomBloke 3:5cd5edbf5b72 101 0x0B, 0x14, 0x08, 0x1E, // (ditto)
SomeRandomBloke 3:5cd5edbf5b72 102 0x22, 0x1D, 0x18, 0x1E,
SomeRandomBloke 3:5cd5edbf5b72 103 0x1B, 0x1A, 0x24, 0x2B,
SomeRandomBloke 3:5cd5edbf5b72 104 0x06, 0x06, 0x02, 0x0F,
SomeRandomBloke 3:5cd5edbf5b72 105 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 106 ST7735_CASET , 4 , // 15: Column addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 107 0x00, 0x02, // XSTART = 2
SomeRandomBloke 3:5cd5edbf5b72 108 0x00, 0x81, // XEND = 129
SomeRandomBloke 3:5cd5edbf5b72 109 ST7735_RASET , 4 , // 16: Row addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 110 0x00, 0x02, // XSTART = 1
SomeRandomBloke 3:5cd5edbf5b72 111 0x00, 0x81, // XEND = 160
SomeRandomBloke 3:5cd5edbf5b72 112 ST7735_NORON , DELAY, // 17: Normal display on, no args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 113 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 114 ST7735_DISPON , DELAY, // 18: Main screen turn on, no args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 115 255 }, // 255 = 500 ms delay
SomeRandomBloke 3:5cd5edbf5b72 116
SomeRandomBloke 3:5cd5edbf5b72 117 Rcmd1[] = { // Init for 7735R, part 1 (red or green tab)
SomeRandomBloke 3:5cd5edbf5b72 118 15, // 15 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 119 ST7735_SWRESET, DELAY, // 1: Software reset, 0 args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 120 150, // 150 ms delay
SomeRandomBloke 3:5cd5edbf5b72 121 ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, 0 args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 122 255, // 500 ms delay
SomeRandomBloke 3:5cd5edbf5b72 123 ST7735_FRMCTR1, 3 , // 3: Frame rate ctrl - normal mode, 3 args:
SomeRandomBloke 3:5cd5edbf5b72 124 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
SomeRandomBloke 3:5cd5edbf5b72 125 ST7735_FRMCTR2, 3 , // 4: Frame rate control - idle mode, 3 args:
SomeRandomBloke 3:5cd5edbf5b72 126 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
SomeRandomBloke 3:5cd5edbf5b72 127 ST7735_FRMCTR3, 6 , // 5: Frame rate ctrl - partial mode, 6 args:
SomeRandomBloke 3:5cd5edbf5b72 128 0x01, 0x2C, 0x2D, // Dot inversion mode
SomeRandomBloke 3:5cd5edbf5b72 129 0x01, 0x2C, 0x2D, // Line inversion mode
SomeRandomBloke 3:5cd5edbf5b72 130 ST7735_INVCTR , 1 , // 6: Display inversion ctrl, 1 arg, no delay:
SomeRandomBloke 3:5cd5edbf5b72 131 0x07, // No inversion
SomeRandomBloke 3:5cd5edbf5b72 132 ST7735_PWCTR1 , 3 , // 7: Power control, 3 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 133 0xA2,
SomeRandomBloke 3:5cd5edbf5b72 134 0x02, // -4.6V
SomeRandomBloke 3:5cd5edbf5b72 135 0x84, // AUTO mode
SomeRandomBloke 3:5cd5edbf5b72 136 ST7735_PWCTR2 , 1 , // 8: Power control, 1 arg, no delay:
SomeRandomBloke 3:5cd5edbf5b72 137 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD
SomeRandomBloke 3:5cd5edbf5b72 138 ST7735_PWCTR3 , 2 , // 9: Power control, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 139 0x0A, // Opamp current small
SomeRandomBloke 3:5cd5edbf5b72 140 0x00, // Boost frequency
SomeRandomBloke 3:5cd5edbf5b72 141 ST7735_PWCTR4 , 2 , // 10: Power control, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 142 0x8A, // BCLK/2, Opamp current small & Medium low
SomeRandomBloke 3:5cd5edbf5b72 143 0x2A,
SomeRandomBloke 3:5cd5edbf5b72 144 ST7735_PWCTR5 , 2 , // 11: Power control, 2 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 145 0x8A, 0xEE,
SomeRandomBloke 3:5cd5edbf5b72 146 ST7735_VMCTR1 , 1 , // 12: Power control, 1 arg, no delay:
SomeRandomBloke 3:5cd5edbf5b72 147 0x0E,
SomeRandomBloke 3:5cd5edbf5b72 148 ST7735_INVOFF , 0 , // 13: Don't invert display, no args, no delay
SomeRandomBloke 3:5cd5edbf5b72 149 ST7735_MADCTL , 1 , // 14: Memory access control (directions), 1 arg:
SomeRandomBloke 3:5cd5edbf5b72 150 0xC8, // row addr/col addr, bottom to top refresh
SomeRandomBloke 3:5cd5edbf5b72 151 ST7735_COLMOD , 1 , // 15: set color mode, 1 arg, no delay:
SomeRandomBloke 3:5cd5edbf5b72 152 0x05 }, // 16-bit color
SomeRandomBloke 3:5cd5edbf5b72 153
SomeRandomBloke 3:5cd5edbf5b72 154 Rcmd2green[] = { // Init for 7735R, part 2 (green tab only)
SomeRandomBloke 3:5cd5edbf5b72 155 2, // 2 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 156 ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 157 0x00, 0x02, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 158 0x00, 0x7F+0x02, // XEND = 127
SomeRandomBloke 3:5cd5edbf5b72 159 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 160 0x00, 0x01, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 161 0x00, 0x9F+0x01 }, // XEND = 159
SomeRandomBloke 3:5cd5edbf5b72 162 Rcmd2red[] = { // Init for 7735R, part 2 (red tab only)
SomeRandomBloke 3:5cd5edbf5b72 163 2, // 2 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 164 ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 165 0x00, 0x00, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 166 0x00, 0x7F, // XEND = 127
SomeRandomBloke 3:5cd5edbf5b72 167 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 168 0x00, 0x00, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 169 0x00, 0x9F }, // XEND = 159
SomeRandomBloke 3:5cd5edbf5b72 170
SomeRandomBloke 3:5cd5edbf5b72 171 Rcmd2green144[] = { // Init for 7735R, part 2 (green 1.44 tab)
SomeRandomBloke 3:5cd5edbf5b72 172 2, // 2 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 173 ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 174 0x00, 0x00, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 175 0x00, 0x7F, // XEND = 127
SomeRandomBloke 3:5cd5edbf5b72 176 ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 177 0x00, 0x00, // XSTART = 0
SomeRandomBloke 3:5cd5edbf5b72 178 0x00, 0x7F }, // XEND = 127
SomeRandomBloke 3:5cd5edbf5b72 179
SomeRandomBloke 3:5cd5edbf5b72 180 Rcmd3[] = { // Init for 7735R, part 3 (red or green tab)
SomeRandomBloke 3:5cd5edbf5b72 181 4, // 4 commands in list:
SomeRandomBloke 3:5cd5edbf5b72 182 ST7735_GMCTRP1, 16 , // 1: Magical unicorn dust, 16 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 183 0x02, 0x1c, 0x07, 0x12,
SomeRandomBloke 3:5cd5edbf5b72 184 0x37, 0x32, 0x29, 0x2d,
SomeRandomBloke 3:5cd5edbf5b72 185 0x29, 0x25, 0x2B, 0x39,
SomeRandomBloke 3:5cd5edbf5b72 186 0x00, 0x01, 0x03, 0x10,
SomeRandomBloke 3:5cd5edbf5b72 187 ST7735_GMCTRN1, 16 , // 2: Sparkles and rainbows, 16 args, no delay:
SomeRandomBloke 3:5cd5edbf5b72 188 0x03, 0x1d, 0x07, 0x06,
SomeRandomBloke 3:5cd5edbf5b72 189 0x2E, 0x2C, 0x29, 0x2D,
SomeRandomBloke 3:5cd5edbf5b72 190 0x2E, 0x2E, 0x37, 0x3F,
SomeRandomBloke 3:5cd5edbf5b72 191 0x00, 0x00, 0x02, 0x10,
SomeRandomBloke 3:5cd5edbf5b72 192 ST7735_NORON , DELAY, // 3: Normal display on, no args, w/delay
SomeRandomBloke 3:5cd5edbf5b72 193 10, // 10 ms delay
SomeRandomBloke 3:5cd5edbf5b72 194 ST7735_DISPON , DELAY, // 4: Main screen turn on, no args w/delay
SomeRandomBloke 3:5cd5edbf5b72 195 100 }; // 100 ms delay
SomeRandomBloke 3:5cd5edbf5b72 196
SomeRandomBloke 3:5cd5edbf5b72 197
SomeRandomBloke 0:99ee879ef5a9 198 // Companion code to the above tables. Reads and issues
SomeRandomBloke 0:99ee879ef5a9 199 // a series of LCD commands stored in byte array.
SomeRandomBloke 0:99ee879ef5a9 200 void Adafruit_ST7735::commandList(uint8_t *addr)
SomeRandomBloke 0:99ee879ef5a9 201 {
SomeRandomBloke 0:99ee879ef5a9 202
SomeRandomBloke 0:99ee879ef5a9 203 uint8_t numCommands, numArgs;
SomeRandomBloke 0:99ee879ef5a9 204 uint16_t ms;
SomeRandomBloke 0:99ee879ef5a9 205
SomeRandomBloke 0:99ee879ef5a9 206 numCommands = *addr++; // Number of commands to follow
SomeRandomBloke 0:99ee879ef5a9 207 while(numCommands--) { // For each command...
SomeRandomBloke 0:99ee879ef5a9 208 writecommand(*addr++); // Read, issue command
SomeRandomBloke 0:99ee879ef5a9 209 numArgs = *addr++; // Number of args to follow
SomeRandomBloke 0:99ee879ef5a9 210 ms = numArgs & DELAY; // If hibit set, delay follows args
SomeRandomBloke 0:99ee879ef5a9 211 numArgs &= ~DELAY; // Mask out delay bit
SomeRandomBloke 0:99ee879ef5a9 212 while(numArgs--) { // For each argument...
SomeRandomBloke 0:99ee879ef5a9 213 writedata(*addr++); // Read, issue argument
SomeRandomBloke 0:99ee879ef5a9 214 }
SomeRandomBloke 0:99ee879ef5a9 215
SomeRandomBloke 0:99ee879ef5a9 216 if(ms) {
SomeRandomBloke 0:99ee879ef5a9 217 ms = *addr++; // Read post-command delay time (ms)
SomeRandomBloke 0:99ee879ef5a9 218 if(ms == 255) ms = 500; // If 255, delay for 500 ms
SomeRandomBloke 0:99ee879ef5a9 219 wait_ms(ms);
SomeRandomBloke 0:99ee879ef5a9 220 }
SomeRandomBloke 0:99ee879ef5a9 221 }
SomeRandomBloke 0:99ee879ef5a9 222 }
SomeRandomBloke 0:99ee879ef5a9 223
SomeRandomBloke 0:99ee879ef5a9 224
SomeRandomBloke 0:99ee879ef5a9 225 // Initialization code common to both 'B' and 'R' type displays
SomeRandomBloke 0:99ee879ef5a9 226 void Adafruit_ST7735::commonInit(uint8_t *cmdList)
SomeRandomBloke 0:99ee879ef5a9 227 {
SomeRandomBloke 0:99ee879ef5a9 228
SomeRandomBloke 0:99ee879ef5a9 229 colstart = rowstart = 0; // May be overridden in init func
SomeRandomBloke 0:99ee879ef5a9 230
SomeRandomBloke 0:99ee879ef5a9 231 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 232 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 233
SomeRandomBloke 0:99ee879ef5a9 234 // use default SPI format
SomeRandomBloke 0:99ee879ef5a9 235 lcdPort.format(8,0);
SomeRandomBloke 2:18ecda534e06 236 lcdPort.frequency(4000000); // Lets try 4MHz
SomeRandomBloke 0:99ee879ef5a9 237
SomeRandomBloke 0:99ee879ef5a9 238 // toggle RST low to reset; CS low so it'll listen to us
SomeRandomBloke 0:99ee879ef5a9 239 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 240 _rst = 1;
SomeRandomBloke 0:99ee879ef5a9 241 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 242 _rst = 0;
SomeRandomBloke 0:99ee879ef5a9 243 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 244 _rst = 1;
SomeRandomBloke 0:99ee879ef5a9 245 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 246
SomeRandomBloke 0:99ee879ef5a9 247 if(cmdList) commandList(cmdList);
SomeRandomBloke 0:99ee879ef5a9 248 }
SomeRandomBloke 0:99ee879ef5a9 249
SomeRandomBloke 0:99ee879ef5a9 250
SomeRandomBloke 0:99ee879ef5a9 251 // Initialization for ST7735B screens
SomeRandomBloke 0:99ee879ef5a9 252 void Adafruit_ST7735::initB(void)
SomeRandomBloke 0:99ee879ef5a9 253 {
SomeRandomBloke 0:99ee879ef5a9 254 commonInit(Bcmd);
SomeRandomBloke 0:99ee879ef5a9 255 }
SomeRandomBloke 0:99ee879ef5a9 256
SomeRandomBloke 0:99ee879ef5a9 257
SomeRandomBloke 0:99ee879ef5a9 258 // Initialization for ST7735R screens (green or red tabs)
SomeRandomBloke 4:2123ea52a4d9 259 void Adafruit_ST7735::initR(uint8_t options) {
SomeRandomBloke 4:2123ea52a4d9 260 commonInit(Rcmd1);
SomeRandomBloke 4:2123ea52a4d9 261 if(options == INITR_GREENTAB) {
SomeRandomBloke 4:2123ea52a4d9 262 commandList(Rcmd2green);
SomeRandomBloke 4:2123ea52a4d9 263 colstart = 2;
SomeRandomBloke 4:2123ea52a4d9 264 rowstart = 1;
SomeRandomBloke 4:2123ea52a4d9 265 } else if(options == INITR_144GREENTAB) {
SomeRandomBloke 4:2123ea52a4d9 266 _height = ST7735_TFTHEIGHT_144;
SomeRandomBloke 4:2123ea52a4d9 267 commandList(Rcmd2green144);
SomeRandomBloke 4:2123ea52a4d9 268 colstart = 2;
SomeRandomBloke 4:2123ea52a4d9 269 rowstart = 3;
SomeRandomBloke 4:2123ea52a4d9 270 } else {
SomeRandomBloke 4:2123ea52a4d9 271 // colstart, rowstart left at default '0' values
SomeRandomBloke 4:2123ea52a4d9 272 commandList(Rcmd2red);
SomeRandomBloke 4:2123ea52a4d9 273 }
SomeRandomBloke 4:2123ea52a4d9 274 commandList(Rcmd3);
SomeRandomBloke 4:2123ea52a4d9 275
SomeRandomBloke 4:2123ea52a4d9 276 // if black, change MADCTL color filter
SomeRandomBloke 4:2123ea52a4d9 277 if (options == INITR_BLACKTAB) {
SomeRandomBloke 4:2123ea52a4d9 278 writecommand(ST7735_MADCTL);
SomeRandomBloke 4:2123ea52a4d9 279 writedata(0xC0);
SomeRandomBloke 4:2123ea52a4d9 280 }
SomeRandomBloke 4:2123ea52a4d9 281
SomeRandomBloke 4:2123ea52a4d9 282 tabcolor = options;
SomeRandomBloke 0:99ee879ef5a9 283 }
SomeRandomBloke 0:99ee879ef5a9 284
SomeRandomBloke 0:99ee879ef5a9 285 void Adafruit_ST7735::setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1,
SomeRandomBloke 0:99ee879ef5a9 286 uint8_t y1)
SomeRandomBloke 0:99ee879ef5a9 287 {
SomeRandomBloke 0:99ee879ef5a9 288
SomeRandomBloke 0:99ee879ef5a9 289 writecommand(ST7735_CASET); // Column addr set
SomeRandomBloke 0:99ee879ef5a9 290 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 291 writedata(x0+colstart); // XSTART
SomeRandomBloke 0:99ee879ef5a9 292 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 293 writedata(x1+colstart); // XEND
SomeRandomBloke 0:99ee879ef5a9 294
SomeRandomBloke 0:99ee879ef5a9 295 writecommand(ST7735_RASET); // Row addr set
SomeRandomBloke 0:99ee879ef5a9 296 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 297 writedata(y0+rowstart); // YSTART
SomeRandomBloke 0:99ee879ef5a9 298 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 299 writedata(y1+rowstart); // YEND
SomeRandomBloke 0:99ee879ef5a9 300
SomeRandomBloke 0:99ee879ef5a9 301 writecommand(ST7735_RAMWR); // write to RAM
SomeRandomBloke 0:99ee879ef5a9 302 }
SomeRandomBloke 0:99ee879ef5a9 303
SomeRandomBloke 0:99ee879ef5a9 304
SomeRandomBloke 0:99ee879ef5a9 305 void Adafruit_ST7735::pushColor(uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 306 {
SomeRandomBloke 0:99ee879ef5a9 307 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 308 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 309
SomeRandomBloke 0:99ee879ef5a9 310 lcdPort.write( color >> 8 );
SomeRandomBloke 0:99ee879ef5a9 311 lcdPort.write( color );
SomeRandomBloke 0:99ee879ef5a9 312 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 313 }
SomeRandomBloke 0:99ee879ef5a9 314
SomeRandomBloke 0:99ee879ef5a9 315
SomeRandomBloke 0:99ee879ef5a9 316 void Adafruit_ST7735::drawPixel(int16_t x, int16_t y, uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 317 {
SomeRandomBloke 0:99ee879ef5a9 318
SomeRandomBloke 0:99ee879ef5a9 319 if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 320
SomeRandomBloke 0:99ee879ef5a9 321 setAddrWindow(x,y,x+1,y+1);
SomeRandomBloke 0:99ee879ef5a9 322
SomeRandomBloke 0:99ee879ef5a9 323 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 324 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 325
SomeRandomBloke 0:99ee879ef5a9 326 lcdPort.write( color >> 8 );
SomeRandomBloke 0:99ee879ef5a9 327 lcdPort.write( color );
SomeRandomBloke 0:99ee879ef5a9 328
SomeRandomBloke 0:99ee879ef5a9 329 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 330 }
SomeRandomBloke 0:99ee879ef5a9 331
SomeRandomBloke 0:99ee879ef5a9 332
SomeRandomBloke 0:99ee879ef5a9 333 void Adafruit_ST7735::drawFastVLine(int16_t x, int16_t y, int16_t h,
SomeRandomBloke 0:99ee879ef5a9 334 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 335 {
SomeRandomBloke 0:99ee879ef5a9 336
SomeRandomBloke 0:99ee879ef5a9 337 // Rudimentary clipping
SomeRandomBloke 0:99ee879ef5a9 338 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 339 if((y+h-1) >= _height) h = _height-y;
SomeRandomBloke 0:99ee879ef5a9 340 setAddrWindow(x, y, x, y+h-1);
SomeRandomBloke 0:99ee879ef5a9 341
SomeRandomBloke 0:99ee879ef5a9 342 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 343 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 344 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 345 while (h--) {
SomeRandomBloke 0:99ee879ef5a9 346 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 347 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 348 }
SomeRandomBloke 0:99ee879ef5a9 349 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 350 }
SomeRandomBloke 0:99ee879ef5a9 351
SomeRandomBloke 0:99ee879ef5a9 352
SomeRandomBloke 0:99ee879ef5a9 353 void Adafruit_ST7735::drawFastHLine(int16_t x, int16_t y, int16_t w,
SomeRandomBloke 0:99ee879ef5a9 354 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 355 {
SomeRandomBloke 0:99ee879ef5a9 356
SomeRandomBloke 0:99ee879ef5a9 357 // Rudimentary clipping
SomeRandomBloke 0:99ee879ef5a9 358 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 359 if((x+w-1) >= _width) w = _width-x;
SomeRandomBloke 0:99ee879ef5a9 360 setAddrWindow(x, y, x+w-1, y);
SomeRandomBloke 0:99ee879ef5a9 361
SomeRandomBloke 0:99ee879ef5a9 362 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 363 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 364 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 365 while (w--) {
SomeRandomBloke 0:99ee879ef5a9 366 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 367 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 368 }
SomeRandomBloke 0:99ee879ef5a9 369 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 370 }
SomeRandomBloke 0:99ee879ef5a9 371
SomeRandomBloke 0:99ee879ef5a9 372
SomeRandomBloke 4:2123ea52a4d9 373
SomeRandomBloke 4:2123ea52a4d9 374 void Adafruit_ST7735::fillScreen(uint16_t color)
SomeRandomBloke 4:2123ea52a4d9 375 {
SomeRandomBloke 4:2123ea52a4d9 376 fillRect(0, 0, _width, _height, color);
SomeRandomBloke 4:2123ea52a4d9 377 }
SomeRandomBloke 4:2123ea52a4d9 378
SomeRandomBloke 4:2123ea52a4d9 379
SomeRandomBloke 0:99ee879ef5a9 380 // fill a rectangle
SomeRandomBloke 0:99ee879ef5a9 381 void Adafruit_ST7735::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
SomeRandomBloke 0:99ee879ef5a9 382 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 383 {
SomeRandomBloke 0:99ee879ef5a9 384
SomeRandomBloke 0:99ee879ef5a9 385 // rudimentary clipping (drawChar w/big text requires this)
SomeRandomBloke 0:99ee879ef5a9 386 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 387 if((x + w - 1) >= _width) w = _width - x;
SomeRandomBloke 0:99ee879ef5a9 388 if((y + h - 1) >= _height) h = _height - y;
SomeRandomBloke 0:99ee879ef5a9 389
SomeRandomBloke 0:99ee879ef5a9 390 setAddrWindow(x, y, x+w-1, y+h-1);
SomeRandomBloke 0:99ee879ef5a9 391
SomeRandomBloke 0:99ee879ef5a9 392 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 393 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 394 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 395 for(y=h; y>0; y--) {
SomeRandomBloke 0:99ee879ef5a9 396 for(x=w; x>0; x--) {
SomeRandomBloke 0:99ee879ef5a9 397 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 398 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 399 }
SomeRandomBloke 0:99ee879ef5a9 400 }
SomeRandomBloke 0:99ee879ef5a9 401
SomeRandomBloke 0:99ee879ef5a9 402 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 403 }
SomeRandomBloke 0:99ee879ef5a9 404
SomeRandomBloke 0:99ee879ef5a9 405
SomeRandomBloke 0:99ee879ef5a9 406 // Pass 8-bit (each) R,G,B, get back 16-bit packed color
SomeRandomBloke 0:99ee879ef5a9 407 uint16_t Adafruit_ST7735::Color565(uint8_t r, uint8_t g, uint8_t b)
SomeRandomBloke 0:99ee879ef5a9 408 {
SomeRandomBloke 0:99ee879ef5a9 409 return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
SomeRandomBloke 0:99ee879ef5a9 410 }
SomeRandomBloke 0:99ee879ef5a9 411
SomeRandomBloke 0:99ee879ef5a9 412
SomeRandomBloke 0:99ee879ef5a9 413 #define MADCTL_MY 0x80
SomeRandomBloke 0:99ee879ef5a9 414 #define MADCTL_MX 0x40
SomeRandomBloke 0:99ee879ef5a9 415 #define MADCTL_MV 0x20
SomeRandomBloke 0:99ee879ef5a9 416 #define MADCTL_ML 0x10
SomeRandomBloke 0:99ee879ef5a9 417 #define MADCTL_RGB 0x08
SomeRandomBloke 0:99ee879ef5a9 418 #define MADCTL_MH 0x04
SomeRandomBloke 0:99ee879ef5a9 419
SomeRandomBloke 0:99ee879ef5a9 420 void Adafruit_ST7735::setRotation(uint8_t m)
SomeRandomBloke 0:99ee879ef5a9 421 {
SomeRandomBloke 0:99ee879ef5a9 422
SomeRandomBloke 0:99ee879ef5a9 423 writecommand(ST7735_MADCTL);
SomeRandomBloke 0:99ee879ef5a9 424 rotation = m % 4; // can't be higher than 3
SomeRandomBloke 0:99ee879ef5a9 425 switch (rotation) {
SomeRandomBloke 0:99ee879ef5a9 426 case 0:
SomeRandomBloke 0:99ee879ef5a9 427 writedata(MADCTL_MX | MADCTL_MY | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 428 _width = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 429 _height = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 430 break;
SomeRandomBloke 0:99ee879ef5a9 431 case 1:
SomeRandomBloke 0:99ee879ef5a9 432 writedata(MADCTL_MY | MADCTL_MV | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 433 _width = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 434 _height = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 435 break;
SomeRandomBloke 0:99ee879ef5a9 436 case 2:
SomeRandomBloke 0:99ee879ef5a9 437 writedata(MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 438 _width = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 439 _height = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 440 break;
SomeRandomBloke 0:99ee879ef5a9 441 case 3:
SomeRandomBloke 0:99ee879ef5a9 442 writedata(MADCTL_MX | MADCTL_MV | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 443 _width = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 444 _height = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 445 break;
SomeRandomBloke 0:99ee879ef5a9 446 }
SomeRandomBloke 0:99ee879ef5a9 447 }
SomeRandomBloke 0:99ee879ef5a9 448
SomeRandomBloke 0:99ee879ef5a9 449
SomeRandomBloke 0:99ee879ef5a9 450 void Adafruit_ST7735::invertDisplay(boolean i)
SomeRandomBloke 0:99ee879ef5a9 451 {
SomeRandomBloke 0:99ee879ef5a9 452 writecommand(i ? ST7735_INVON : ST7735_INVOFF);
SomeRandomBloke 0:99ee879ef5a9 453 }
SomeRandomBloke 0:99ee879ef5a9 454
SomeRandomBloke 0:99ee879ef5a9 455