Andrew Lindsay / Adafruit_ST7735

A first port of the excellent Adafruit ST7735 library

Dependents:   mbed-pong

Adafruit_ST7735.cpp@2:18ecda534e06, 2014-03-03 (annotated)

Committer:
SomeRandomBloke
Date:
Mon Mar 03 22:13:53 2014 +0000
Revision:
2:18ecda534e06
Parent:
1:226fd3534967
Child:
3:5cd5edbf5b72
reduced SPI speed to 4MHz

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