Paulo Bruckmann / Adafruit_ST7735_BURST_SPI

Fast! Install BurstSPI library! https://os.mbed.com/users/peekpt/code/BurstSPI/ New display (greentab2 blue module compact).

Adafruit_ST7735.cpp@8:66c5dc727281, 2020-04-24 (annotated)

Committer:
peekpt
Date:
Fri Apr 24 11:14:56 2020 +0000
Revision:
8:66c5dc727281
Parent:
7:856a3443f68d 
ADDED BURST SPI

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
peekpt 7:856a3443f68d 19 // + GREENTAB2 display
peekpt 8:66c5dc727281 20 // BurstSPI
peekpt 7:856a3443f68d 21
SomeRandomBloke 0:99ee879ef5a9 22 #include "Adafruit_ST7735.h"
SomeRandomBloke 0:99ee879ef5a9 23
peekpt 7:856a3443f68d 24 #include "mbed.h"
peekpt 7:856a3443f68d 25
peekpt 7:856a3443f68d 26 inline uint16_t swapcolor(uint16_t x) {
SomeRandomBloke 4:2123ea52a4d9 27 return (x << 11) | (x & 0x07E0) | (x >> 11);
SomeRandomBloke 4:2123ea52a4d9 28 }
SomeRandomBloke 4:2123ea52a4d9 29
peekpt 7:856a3443f68d 30 // Constructor
peekpt 7:856a3443f68d 31 Adafruit_ST7735::Adafruit_ST7735(PinName mosi, PinName miso, PinName sck,
peekpt 7:856a3443f68d 32 PinName cs, PinName rs, PinName rst)
peekpt 7:856a3443f68d 33 : lcdPort(mosi, miso, sck), _cs(cs), _rs(rs), _rst(rst),
peekpt 7:856a3443f68d 34 Adafruit_GFX(ST7735_TFTWIDTH, ST7735_TFTHEIGHT) {}
SomeRandomBloke 0:99ee879ef5a9 35
peekpt 7:856a3443f68d 36 void Adafruit_ST7735::writecommand(uint8_t c) {
peekpt 7:856a3443f68d 37 _rs = 0;
peekpt 7:856a3443f68d 38 _cs = 0;
peekpt 7:856a3443f68d 39
peekpt 8:66c5dc727281 40 lcdPort.fastWrite(c);
peekpt 8:66c5dc727281 41 lcdPort.clearRX();
peekpt 7:856a3443f68d 42 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 43 }
SomeRandomBloke 0:99ee879ef5a9 44
peekpt 7:856a3443f68d 45 void Adafruit_ST7735::writedata(uint8_t c) {
peekpt 7:856a3443f68d 46 _rs = 1;
peekpt 7:856a3443f68d 47 _cs = 0;
peekpt 8:66c5dc727281 48 lcdPort.fastWrite(c);
peekpt 8:66c5dc727281 49 lcdPort.clearRX();
SomeRandomBloke 0:99ee879ef5a9 50
peekpt 7:856a3443f68d 51 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 52 }
SomeRandomBloke 0:99ee879ef5a9 53
SomeRandomBloke 0:99ee879ef5a9 54 // Rather than a bazillion writecommand() and writedata() calls, screen
SomeRandomBloke 0:99ee879ef5a9 55 // initialization commands and arguments are organized in these tables
SomeRandomBloke 0:99ee879ef5a9 56 // stored in PROGMEM. The table may look bulky, but that's mostly the
SomeRandomBloke 0:99ee879ef5a9 57 // formatting -- storage-wise this is hundreds of bytes more compact
SomeRandomBloke 0:99ee879ef5a9 58 // than the equivalent code. Companion function follows.
SomeRandomBloke 0:99ee879ef5a9 59 #define DELAY 0x80
peekpt 7:856a3443f68d 60
peekpt 7:856a3443f68d 61 static unsigned char Bcmd[] =
peekpt 7:856a3443f68d 62 { // Initialization commands for 7735B screens
peekpt 7:856a3443f68d 63 18, // 18 commands in list:
peekpt 7:856a3443f68d 64 ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay
peekpt 7:856a3443f68d 65 50, // 50 ms delay
peekpt 7:856a3443f68d 66 ST7735_SLPOUT, DELAY, // 2: Out of sleep mode, no args, w/delay
peekpt 7:856a3443f68d 67 255, // 255 = 500 ms delay
peekpt 7:856a3443f68d 68 ST7735_COLMOD, 1 + DELAY, // 3: Set color mode, 1 arg + delay:
peekpt 7:856a3443f68d 69 0x05, // 16-bit color
peekpt 7:856a3443f68d 70 10, // 10 ms delay
peekpt 7:856a3443f68d 71 ST7735_FRMCTR1, 3 + DELAY, // 4: Frame rate control, 3 args + delay:
peekpt 7:856a3443f68d 72 0x00, // fastest refresh
peekpt 7:856a3443f68d 73 0x06, // 6 lines front porch
peekpt 7:856a3443f68d 74 0x03, // 3 lines back porch
peekpt 7:856a3443f68d 75 10, // 10 ms delay
peekpt 7:856a3443f68d 76 ST7735_MADCTL, 1, // 5: Memory access ctrl (directions), 1 arg:
peekpt 7:856a3443f68d 77 0x08, // Row addr/col addr, bottom to top refresh
peekpt 7:856a3443f68d 78 ST7735_DISSET5, 2, // 6: Display settings #5, 2 args, no delay:
peekpt 7:856a3443f68d 79 0x15, // 1 clk cycle nonoverlap, 2 cycle gate
peekpt 7:856a3443f68d 80 // rise, 3 cycle osc equalize
peekpt 7:856a3443f68d 81 0x02, // Fix on VTL
peekpt 7:856a3443f68d 82 ST7735_INVCTR, 1, // 7: Display inversion control, 1 arg:
peekpt 7:856a3443f68d 83 0x0, // Line inversion
peekpt 7:856a3443f68d 84 ST7735_PWCTR1, 2 + DELAY, // 8: Power control, 2 args + delay:
peekpt 7:856a3443f68d 85 0x02, // GVDD = 4.7V
peekpt 7:856a3443f68d 86 0x70, // 1.0uA
peekpt 7:856a3443f68d 87 10, // 10 ms delay
peekpt 7:856a3443f68d 88 ST7735_PWCTR2, 1, // 9: Power control, 1 arg, no delay:
peekpt 7:856a3443f68d 89 0x05, // VGH = 14.7V, VGL = -7.35V
peekpt 7:856a3443f68d 90 ST7735_PWCTR3, 2, // 10: Power control, 2 args, no delay:
peekpt 7:856a3443f68d 91 0x01, // Opamp current small
peekpt 7:856a3443f68d 92 0x02, // Boost frequency
peekpt 7:856a3443f68d 93 ST7735_VMCTR1, 2 + DELAY, // 11: Power control, 2 args + delay:
peekpt 7:856a3443f68d 94 0x3C, // VCOMH = 4V
peekpt 7:856a3443f68d 95 0x38, // VCOML = -1.1V
peekpt 7:856a3443f68d 96 10, // 10 ms delay
peekpt 7:856a3443f68d 97 ST7735_PWCTR6, 2, // 12: Power control, 2 args, no delay:
peekpt 7:856a3443f68d 98 0x11, 0x15, ST7735_GMCTRP1,
peekpt 7:856a3443f68d 99 16, // 13: Magical unicorn dust, 16 args, no delay:
peekpt 7:856a3443f68d 100 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what
peekpt 7:856a3443f68d 101 0x21, 0x1B, 0x13, 0x19, // these config values represent)
peekpt 7:856a3443f68d 102 0x17, 0x15, 0x1E, 0x2B, 0x04, 0x05, 0x02, 0x0E, ST7735_GMCTRN1,
peekpt 7:856a3443f68d 103 16 + DELAY, // 14: Sparkles and rainbows, 16 args + delay:
peekpt 7:856a3443f68d 104 0x0B, 0x14, 0x08, 0x1E, // (ditto)
peekpt 7:856a3443f68d 105 0x22, 0x1D, 0x18, 0x1E, 0x1B, 0x1A, 0x24, 0x2B, 0x06, 0x06, 0x02, 0x0F,
peekpt 7:856a3443f68d 106 10, // 10 ms delay
peekpt 7:856a3443f68d 107 ST7735_CASET, 4, // 15: Column addr set, 4 args, no delay:
peekpt 7:856a3443f68d 108 0x00, 0x02, // XSTART = 2
peekpt 7:856a3443f68d 109 0x00, 0x81, // XEND = 129
peekpt 7:856a3443f68d 110 ST7735_RASET, 4, // 16: Row addr set, 4 args, no delay:
peekpt 7:856a3443f68d 111 0x00, 0x02, // XSTART = 1
peekpt 7:856a3443f68d 112 0x00, 0x81, // XEND = 160
peekpt 7:856a3443f68d 113 ST7735_NORON, DELAY, // 17: Normal display on, no args, w/delay
peekpt 7:856a3443f68d 114 10, // 10 ms delay
peekpt 7:856a3443f68d 115 ST7735_DISPON, DELAY, // 18: Main screen turn on, no args, w/delay
peekpt 7:856a3443f68d 116 255}, // 255 = 500 ms delay
SomeRandomBloke 3:5cd5edbf5b72 117
peekpt 7:856a3443f68d 118 Rcmd1[] =
peekpt 7:856a3443f68d 119 { // Init for 7735R, part 1 (red or green tab)
peekpt 7:856a3443f68d 120 15, // 15 commands in list:
peekpt 7:856a3443f68d 121 ST7735_SWRESET,
peekpt 7:856a3443f68d 122 DELAY, // 1: Software reset, 0 args, w/delay
peekpt 7:856a3443f68d 123 150, // 150 ms delay
peekpt 7:856a3443f68d 124 ST7735_SLPOUT,
peekpt 7:856a3443f68d 125 DELAY, // 2: Out of sleep mode, 0 args, w/delay
peekpt 7:856a3443f68d 126 255, // 500 ms delay
peekpt 7:856a3443f68d 127 ST7735_FRMCTR1,
peekpt 7:856a3443f68d 128 3, // 3: Frame rate ctrl - normal mode, 3 args:
peekpt 7:856a3443f68d 129 0x01,
peekpt 7:856a3443f68d 130 0x2C,
peekpt 7:856a3443f68d 131 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
peekpt 7:856a3443f68d 132 ST7735_FRMCTR2,
peekpt 7:856a3443f68d 133 3, // 4: Frame rate control - idle mode, 3 args:
peekpt 7:856a3443f68d 134 0x01,
peekpt 7:856a3443f68d 135 0x2C,
peekpt 7:856a3443f68d 136 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
peekpt 7:856a3443f68d 137 ST7735_FRMCTR3,
peekpt 7:856a3443f68d 138 6, // 5: Frame rate ctrl - partial mode, 6 args:
peekpt 7:856a3443f68d 139 0x01,
peekpt 7:856a3443f68d 140 0x2C,
peekpt 7:856a3443f68d 141 0x2D, // Dot inversion mode
peekpt 7:856a3443f68d 142 0x01,
peekpt 7:856a3443f68d 143 0x2C,
peekpt 7:856a3443f68d 144 0x2D, // Line inversion mode
peekpt 7:856a3443f68d 145 ST7735_INVCTR,
peekpt 7:856a3443f68d 146 1, // 6: Display inversion ctrl, 1 arg, no delay:
peekpt 7:856a3443f68d 147 0x07, // No inversion
peekpt 7:856a3443f68d 148 ST7735_PWCTR1,
peekpt 7:856a3443f68d 149 3, // 7: Power control, 3 args, no delay:
peekpt 7:856a3443f68d 150 0xA2,
peekpt 7:856a3443f68d 151 0x02, // -4.6V
peekpt 7:856a3443f68d 152 0x84, // AUTO mode
peekpt 7:856a3443f68d 153 ST7735_PWCTR2,
peekpt 7:856a3443f68d 154 1, // 8: Power control, 1 arg, no delay:
peekpt 7:856a3443f68d 155 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD
peekpt 7:856a3443f68d 156 ST7735_PWCTR3,
peekpt 7:856a3443f68d 157 2, // 9: Power control, 2 args, no delay:
peekpt 7:856a3443f68d 158 0x0A, // Opamp current small
peekpt 7:856a3443f68d 159 0x00, // Boost frequency
peekpt 7:856a3443f68d 160 ST7735_PWCTR4,
peekpt 7:856a3443f68d 161 2, // 10: Power control, 2 args, no delay:
peekpt 7:856a3443f68d 162 0x8A, // BCLK/2, Opamp current small & Medium low
peekpt 7:856a3443f68d 163 0x2A,
peekpt 7:856a3443f68d 164 ST7735_PWCTR5,
peekpt 7:856a3443f68d 165 2, // 11: Power control, 2 args, no delay:
peekpt 7:856a3443f68d 166 0x8A,
peekpt 7:856a3443f68d 167 0xEE,
peekpt 7:856a3443f68d 168 ST7735_VMCTR1,
peekpt 7:856a3443f68d 169 1, // 12: Power control, 1 arg, no delay:
peekpt 7:856a3443f68d 170 0x0E,
peekpt 7:856a3443f68d 171 ST7735_INVOFF,
peekpt 7:856a3443f68d 172 0, // 13: Don't invert display, no args, no delay
peekpt 7:856a3443f68d 173 ST7735_MADCTL,
peekpt 7:856a3443f68d 174 1, // 14: Memory access control (directions), 1 arg:
peekpt 7:856a3443f68d 175 0xC8, // row addr/col addr, bottom to top refresh
peekpt 7:856a3443f68d 176 ST7735_COLMOD,
peekpt 7:856a3443f68d 177 1, // 15: set color mode, 1 arg, no delay:
peekpt 7:856a3443f68d 178 0x05}, // 16-bit color
SomeRandomBloke 3:5cd5edbf5b72 179
peekpt 7:856a3443f68d 180 Rcmd2green[] =
peekpt 7:856a3443f68d 181 { // Init for 7735R, part 2 (green tab only)
peekpt 7:856a3443f68d 182 2, // 2 commands in list:
peekpt 7:856a3443f68d 183 ST7735_CASET,
peekpt 7:856a3443f68d 184 4, // 1: Column addr set, 4 args, no delay:
peekpt 7:856a3443f68d 185 0x00,
peekpt 7:856a3443f68d 186 0x02, // XSTART = 0
peekpt 7:856a3443f68d 187 0x00,
peekpt 7:856a3443f68d 188 0x7F + 0x02, // XEND = 127
peekpt 7:856a3443f68d 189 ST7735_RASET,
peekpt 7:856a3443f68d 190 4, // 2: Row addr set, 4 args, no delay:
peekpt 7:856a3443f68d 191 0x00,
peekpt 7:856a3443f68d 192 0x01, // XSTART = 0
peekpt 7:856a3443f68d 193 0x00,
peekpt 7:856a3443f68d 194 0x9F + 0x01}, // XEND = 159
peekpt 7:856a3443f68d 195 Rcmd2red[] =
peekpt 7:856a3443f68d 196 { // Init for 7735R, part 2 (red tab only)
peekpt 7:856a3443f68d 197 2, // 2 commands in list:
peekpt 7:856a3443f68d 198 ST7735_CASET,
peekpt 7:856a3443f68d 199 4, // 1: Column addr set, 4 args, no delay:
peekpt 7:856a3443f68d 200 0x00,
peekpt 7:856a3443f68d 201 0x00, // XSTART = 0
peekpt 7:856a3443f68d 202 0x00,
peekpt 7:856a3443f68d 203 0x7F, // XEND = 127
peekpt 7:856a3443f68d 204 ST7735_RASET,
peekpt 7:856a3443f68d 205 4, // 2: Row addr set, 4 args, no delay:
peekpt 7:856a3443f68d 206 0x00,
peekpt 7:856a3443f68d 207 0x00, // XSTART = 0
peekpt 7:856a3443f68d 208 0x00,
peekpt 7:856a3443f68d 209 0x9F}, // XEND = 159
SomeRandomBloke 3:5cd5edbf5b72 210
peekpt 7:856a3443f68d 211 Rcmd2green144[] =
peekpt 7:856a3443f68d 212 { // Init for 7735R, part 2 (green 1.44 tab)
peekpt 7:856a3443f68d 213 2, // 2 commands in list:
peekpt 7:856a3443f68d 214 ST7735_CASET,
peekpt 7:856a3443f68d 215 4, // 1: Column addr set, 4 args, no delay:
peekpt 7:856a3443f68d 216 0x00,
peekpt 7:856a3443f68d 217 0x00, // XSTART = 0
peekpt 7:856a3443f68d 218 0x00,
peekpt 7:856a3443f68d 219 0x7F, // XEND = 127
peekpt 7:856a3443f68d 220 ST7735_RASET,
peekpt 7:856a3443f68d 221 4, // 2: Row addr set, 4 args, no delay:
peekpt 7:856a3443f68d 222 0x00,
peekpt 7:856a3443f68d 223 0x00, // XSTART = 0
peekpt 7:856a3443f68d 224 0x00,
peekpt 7:856a3443f68d 225 0x7F}, // XEND = 127
SomeRandomBloke 3:5cd5edbf5b72 226
peekpt 7:856a3443f68d 227 Rcmd3[] = { // Init for 7735R, part 3 (red or green tab)
peekpt 7:856a3443f68d 228 4, // 4 commands in list:
peekpt 7:856a3443f68d 229 ST7735_GMCTRP1,
peekpt 7:856a3443f68d 230 16, // 1: Magical unicorn dust, 16 args, no delay:
peekpt 7:856a3443f68d 231 0x02,
peekpt 7:856a3443f68d 232 0x1c,
peekpt 7:856a3443f68d 233 0x07,
peekpt 7:856a3443f68d 234 0x12,
peekpt 7:856a3443f68d 235 0x37,
peekpt 7:856a3443f68d 236 0x32,
peekpt 7:856a3443f68d 237 0x29,
peekpt 7:856a3443f68d 238 0x2d,
peekpt 7:856a3443f68d 239 0x29,
peekpt 7:856a3443f68d 240 0x25,
peekpt 7:856a3443f68d 241 0x2B,
peekpt 7:856a3443f68d 242 0x39,
peekpt 7:856a3443f68d 243 0x00,
peekpt 7:856a3443f68d 244 0x01,
peekpt 7:856a3443f68d 245 0x03,
peekpt 7:856a3443f68d 246 0x10,
peekpt 7:856a3443f68d 247 ST7735_GMCTRN1,
peekpt 7:856a3443f68d 248 16, // 2: Sparkles and rainbows, 16 args, no delay:
peekpt 7:856a3443f68d 249 0x03,
peekpt 7:856a3443f68d 250 0x1d,
peekpt 7:856a3443f68d 251 0x07,
peekpt 7:856a3443f68d 252 0x06,
peekpt 7:856a3443f68d 253 0x2E,
peekpt 7:856a3443f68d 254 0x2C,
peekpt 7:856a3443f68d 255 0x29,
peekpt 7:856a3443f68d 256 0x2D,
peekpt 7:856a3443f68d 257 0x2E,
peekpt 7:856a3443f68d 258 0x2E,
peekpt 7:856a3443f68d 259 0x37,
peekpt 7:856a3443f68d 260 0x3F,
peekpt 7:856a3443f68d 261 0x00,
peekpt 7:856a3443f68d 262 0x00,
peekpt 7:856a3443f68d 263 0x02,
peekpt 7:856a3443f68d 264 0x10,
peekpt 7:856a3443f68d 265 ST7735_NORON,
peekpt 7:856a3443f68d 266 DELAY, // 3: Normal display on, no args, w/delay
peekpt 7:856a3443f68d 267 10, // 10 ms delay
peekpt 7:856a3443f68d 268 ST7735_DISPON,
peekpt 7:856a3443f68d 269 DELAY, // 4: Main screen turn on, no args w/delay
peekpt 7:856a3443f68d 270 100}; // 100 ms delay
SomeRandomBloke 3:5cd5edbf5b72 271
SomeRandomBloke 0:99ee879ef5a9 272 // Companion code to the above tables. Reads and issues
SomeRandomBloke 0:99ee879ef5a9 273 // a series of LCD commands stored in byte array.
peekpt 7:856a3443f68d 274 void Adafruit_ST7735::commandList(uint8_t *addr) {
peekpt 7:856a3443f68d 275 uint8_t numCommands, numArgs;
peekpt 7:856a3443f68d 276 uint16_t ms;
SomeRandomBloke 0:99ee879ef5a9 277
peekpt 7:856a3443f68d 278 numCommands = *addr++; // Number of commands to follow
peekpt 7:856a3443f68d 279 while (numCommands--) { // For each command...
peekpt 7:856a3443f68d 280 writecommand(*addr++); // Read, issue command
peekpt 7:856a3443f68d 281 numArgs = *addr++; // Number of args to follow
peekpt 7:856a3443f68d 282 ms = numArgs & DELAY; // If hibit set, delay follows args
peekpt 7:856a3443f68d 283 numArgs &= ~DELAY; // Mask out delay bit
peekpt 7:856a3443f68d 284 while (numArgs--) { // For each argument...
peekpt 7:856a3443f68d 285 writedata(*addr++); // Read, issue argument
peekpt 7:856a3443f68d 286 }
SomeRandomBloke 0:99ee879ef5a9 287
peekpt 7:856a3443f68d 288 if (ms) {
peekpt 7:856a3443f68d 289 ms = *addr++; // Read post-command delay time (ms)
peekpt 7:856a3443f68d 290 if (ms == 255)
peekpt 7:856a3443f68d 291 ms = 500; // If 255, delay for 500 ms
peekpt 7:856a3443f68d 292 ThisThread::sleep_for(ms);
SomeRandomBloke 0:99ee879ef5a9 293 }
peekpt 7:856a3443f68d 294 }
SomeRandomBloke 0:99ee879ef5a9 295 }
SomeRandomBloke 0:99ee879ef5a9 296
SomeRandomBloke 0:99ee879ef5a9 297 // Initialization code common to both 'B' and 'R' type displays
peekpt 7:856a3443f68d 298 void Adafruit_ST7735::commonInit(uint8_t *cmdList) {
peekpt 7:856a3443f68d 299
peekpt 7:856a3443f68d 300 colstart = rowstart = 0; // May be overridden in init func
SomeRandomBloke 0:99ee879ef5a9 301
peekpt 7:856a3443f68d 302 _rs = 1;
peekpt 7:856a3443f68d 303 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 304
peekpt 7:856a3443f68d 305 // use default SPI format
peekpt 8:66c5dc727281 306
peekpt 8:66c5dc727281 307 // lcdPort.format(8, 0);
peekpt 8:66c5dc727281 308 // lcdPort.frequency(4000000);
peekpt 8:66c5dc727281 309
peekpt 8:66c5dc727281 310 lcdPort.setFormat();
SomeRandomBloke 0:99ee879ef5a9 311
peekpt 7:856a3443f68d 312 // toggle RST low to reset; CS low so it'll listen to us
peekpt 7:856a3443f68d 313 _cs = 0;
peekpt 7:856a3443f68d 314 _rst = 1;
peekpt 7:856a3443f68d 315 ThisThread::sleep_for(100);
peekpt 7:856a3443f68d 316 _rst = 0;
peekpt 7:856a3443f68d 317 ThisThread::sleep_for(100);
peekpt 7:856a3443f68d 318 _rst = 1;
peekpt 7:856a3443f68d 319 ThisThread::sleep_for(100);
SomeRandomBloke 0:99ee879ef5a9 320
peekpt 7:856a3443f68d 321 if (cmdList)
peekpt 7:856a3443f68d 322 commandList(cmdList);
SomeRandomBloke 0:99ee879ef5a9 323 }
SomeRandomBloke 0:99ee879ef5a9 324
SomeRandomBloke 0:99ee879ef5a9 325 // Initialization for ST7735B screens
peekpt 7:856a3443f68d 326 void Adafruit_ST7735::initB(void) { commonInit(Bcmd); }
SomeRandomBloke 0:99ee879ef5a9 327
SomeRandomBloke 0:99ee879ef5a9 328 // Initialization for ST7735R screens (green or red tabs)
SomeRandomBloke 4:2123ea52a4d9 329 void Adafruit_ST7735::initR(uint8_t options) {
SomeRandomBloke 4:2123ea52a4d9 330 commonInit(Rcmd1);
peekpt 7:856a3443f68d 331 if (options == INITR_GREENTAB) {
SomeRandomBloke 4:2123ea52a4d9 332 commandList(Rcmd2green);
SomeRandomBloke 4:2123ea52a4d9 333 colstart = 2;
SomeRandomBloke 4:2123ea52a4d9 334 rowstart = 1;
peekpt 7:856a3443f68d 335 } else if (options == INITR_GREENTAB2) {
peekpt 7:856a3443f68d 336 commandList(Rcmd2green);
peekpt 7:856a3443f68d 337 colstart = 1;
peekpt 7:856a3443f68d 338 rowstart = 2;
peekpt 7:856a3443f68d 339 } else if (options == INITR_144GREENTAB) {
SomeRandomBloke 4:2123ea52a4d9 340 _height = ST7735_TFTHEIGHT_144;
SomeRandomBloke 4:2123ea52a4d9 341 commandList(Rcmd2green144);
SomeRandomBloke 4:2123ea52a4d9 342 colstart = 2;
SomeRandomBloke 4:2123ea52a4d9 343 rowstart = 3;
SomeRandomBloke 4:2123ea52a4d9 344 } else {
SomeRandomBloke 4:2123ea52a4d9 345 // colstart, rowstart left at default '0' values
SomeRandomBloke 4:2123ea52a4d9 346 commandList(Rcmd2red);
SomeRandomBloke 4:2123ea52a4d9 347 }
SomeRandomBloke 4:2123ea52a4d9 348 commandList(Rcmd3);
SomeRandomBloke 4:2123ea52a4d9 349
SomeRandomBloke 4:2123ea52a4d9 350 // if black, change MADCTL color filter
peekpt 7:856a3443f68d 351 if (options == INITR_BLACKTAB || INITR_GREENTAB2) {
SomeRandomBloke 4:2123ea52a4d9 352 writecommand(ST7735_MADCTL);
SomeRandomBloke 4:2123ea52a4d9 353 writedata(0xC0);
SomeRandomBloke 4:2123ea52a4d9 354 }
SomeRandomBloke 4:2123ea52a4d9 355
SomeRandomBloke 4:2123ea52a4d9 356 tabcolor = options;
SomeRandomBloke 0:99ee879ef5a9 357 }
SomeRandomBloke 0:99ee879ef5a9 358
SomeRandomBloke 0:99ee879ef5a9 359 void Adafruit_ST7735::setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1,
peekpt 7:856a3443f68d 360 uint8_t y1) {
peekpt 7:856a3443f68d 361 writecommand(ST7735_CASET); // Column addr set
peekpt 7:856a3443f68d 362 writedata(0x00);
peekpt 7:856a3443f68d 363 writedata(x0 + colstart); // XSTART
peekpt 7:856a3443f68d 364 writedata(0x00);
peekpt 7:856a3443f68d 365 writedata(x1 + colstart); // XEND
SomeRandomBloke 0:99ee879ef5a9 366
peekpt 7:856a3443f68d 367 writecommand(ST7735_RASET); // Row addr set
peekpt 7:856a3443f68d 368 writedata(0x00);
peekpt 7:856a3443f68d 369 writedata(y0 + rowstart); // YSTART
peekpt 7:856a3443f68d 370 writedata(0x00);
peekpt 7:856a3443f68d 371 writedata(y1 + rowstart); // YEND
SomeRandomBloke 0:99ee879ef5a9 372
peekpt 7:856a3443f68d 373 writecommand(ST7735_RAMWR); // write to RAM
SomeRandomBloke 0:99ee879ef5a9 374 }
SomeRandomBloke 0:99ee879ef5a9 375
peekpt 7:856a3443f68d 376 void Adafruit_ST7735::pushColor(uint16_t color) {
peekpt 7:856a3443f68d 377 _rs = 1;
peekpt 7:856a3443f68d 378 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 379
peekpt 8:66c5dc727281 380 lcdPort.fastWrite(color >> 8);
peekpt 8:66c5dc727281 381 lcdPort.clearRX();
peekpt 8:66c5dc727281 382 lcdPort.fastWrite(color);
peekpt 8:66c5dc727281 383 lcdPort.clearRX();
peekpt 7:856a3443f68d 384 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 385 }
SomeRandomBloke 0:99ee879ef5a9 386
peekpt 7:856a3443f68d 387 void Adafruit_ST7735::drawPixel(int16_t x, int16_t y, uint16_t color) {
peekpt 7:856a3443f68d 388 if ((x < 0) || (x >= _width) || (y < 0) || (y >= _height))
peekpt 7:856a3443f68d 389 return;
SomeRandomBloke 0:99ee879ef5a9 390
peekpt 7:856a3443f68d 391 setAddrWindow(x, y, x + 1, y + 1);
SomeRandomBloke 0:99ee879ef5a9 392
peekpt 7:856a3443f68d 393 _rs = 1;
peekpt 7:856a3443f68d 394 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 395
peekpt 8:66c5dc727281 396 lcdPort.fastWrite(color >> 8);
peekpt 8:66c5dc727281 397 lcdPort.clearRX();
peekpt 8:66c5dc727281 398 lcdPort.fastWrite(color);
peekpt 8:66c5dc727281 399 lcdPort.clearRX();
SomeRandomBloke 0:99ee879ef5a9 400
peekpt 7:856a3443f68d 401 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 402 }
SomeRandomBloke 0:99ee879ef5a9 403
SomeRandomBloke 0:99ee879ef5a9 404 void Adafruit_ST7735::drawFastVLine(int16_t x, int16_t y, int16_t h,
peekpt 7:856a3443f68d 405 uint16_t color) {
peekpt 7:856a3443f68d 406 // Rudimentary clipping
peekpt 7:856a3443f68d 407 if ((x >= _width) || (y >= _height))
peekpt 7:856a3443f68d 408 return;
peekpt 7:856a3443f68d 409 if ((y + h - 1) >= _height)
peekpt 7:856a3443f68d 410 h = _height - y;
peekpt 7:856a3443f68d 411 setAddrWindow(x, y, x, y + h - 1);
SomeRandomBloke 0:99ee879ef5a9 412
peekpt 7:856a3443f68d 413 uint8_t hi = color >> 8, lo = color;
peekpt 7:856a3443f68d 414 _rs = 1;
peekpt 7:856a3443f68d 415 _cs = 0;
peekpt 7:856a3443f68d 416 while (h--) {
peekpt 8:66c5dc727281 417 lcdPort.fastWrite(hi);
peekpt 8:66c5dc727281 418 lcdPort.clearRX();
peekpt 8:66c5dc727281 419 lcdPort.fastWrite(lo);
peekpt 8:66c5dc727281 420 lcdPort.clearRX();
peekpt 7:856a3443f68d 421 }
peekpt 7:856a3443f68d 422 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 423 }
SomeRandomBloke 0:99ee879ef5a9 424
SomeRandomBloke 0:99ee879ef5a9 425 void Adafruit_ST7735::drawFastHLine(int16_t x, int16_t y, int16_t w,
peekpt 7:856a3443f68d 426 uint16_t color) {
peekpt 7:856a3443f68d 427 // Rudimentary clipping
peekpt 7:856a3443f68d 428 if ((x >= _width) || (y >= _height))
peekpt 7:856a3443f68d 429 return;
peekpt 7:856a3443f68d 430 if ((x + w - 1) >= _width)
peekpt 7:856a3443f68d 431 w = _width - x;
peekpt 7:856a3443f68d 432 setAddrWindow(x, y, x + w - 1, y);
SomeRandomBloke 0:99ee879ef5a9 433
peekpt 7:856a3443f68d 434 uint8_t hi = color >> 8, lo = color;
peekpt 7:856a3443f68d 435 _rs = 1;
peekpt 7:856a3443f68d 436 _cs = 0;
peekpt 7:856a3443f68d 437 while (w--) {
peekpt 8:66c5dc727281 438 lcdPort.fastWrite(hi);
peekpt 8:66c5dc727281 439 lcdPort.clearRX();
peekpt 8:66c5dc727281 440 lcdPort.fastWrite(lo);
peekpt 8:66c5dc727281 441 lcdPort.clearRX();
peekpt 7:856a3443f68d 442 }
peekpt 7:856a3443f68d 443 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 444 }
SomeRandomBloke 0:99ee879ef5a9 445
peekpt 7:856a3443f68d 446 void Adafruit_ST7735::fillScreen(uint16_t color) {
peekpt 7:856a3443f68d 447 fillRect(0, 0, _width, _height, color);
SomeRandomBloke 4:2123ea52a4d9 448 }
SomeRandomBloke 4:2123ea52a4d9 449
SomeRandomBloke 0:99ee879ef5a9 450 // fill a rectangle
SomeRandomBloke 0:99ee879ef5a9 451 void Adafruit_ST7735::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
peekpt 7:856a3443f68d 452 uint16_t color) {
peekpt 7:856a3443f68d 453 // rudimentary clipping (drawChar w/big text requires this)
peekpt 7:856a3443f68d 454 if ((x >= _width) || (y >= _height))
peekpt 7:856a3443f68d 455 return;
peekpt 7:856a3443f68d 456 if ((x + w - 1) >= _width)
peekpt 7:856a3443f68d 457 w = _width - x;
peekpt 7:856a3443f68d 458 if ((y + h - 1) >= _height)
peekpt 7:856a3443f68d 459 h = _height - y;
SomeRandomBloke 0:99ee879ef5a9 460
peekpt 7:856a3443f68d 461 setAddrWindow(x, y, x + w - 1, y + h - 1);
SomeRandomBloke 0:99ee879ef5a9 462
peekpt 7:856a3443f68d 463 uint8_t hi = color >> 8, lo = color;
peekpt 7:856a3443f68d 464 _rs = 1;
peekpt 7:856a3443f68d 465 _cs = 0;
peekpt 7:856a3443f68d 466 for (y = h; y > 0; y--) {
peekpt 7:856a3443f68d 467 for (x = w; x > 0; x--) {
peekpt 8:66c5dc727281 468 lcdPort.fastWrite(hi);
peekpt 8:66c5dc727281 469 lcdPort.clearRX();
peekpt 8:66c5dc727281 470 lcdPort.fastWrite(lo);
peekpt 8:66c5dc727281 471 lcdPort.clearRX();
SomeRandomBloke 0:99ee879ef5a9 472 }
peekpt 7:856a3443f68d 473 }
SomeRandomBloke 0:99ee879ef5a9 474
peekpt 7:856a3443f68d 475 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 476 }
SomeRandomBloke 0:99ee879ef5a9 477
SomeRandomBloke 0:99ee879ef5a9 478 // Pass 8-bit (each) R,G,B, get back 16-bit packed color
peekpt 7:856a3443f68d 479 uint16_t Adafruit_ST7735::Color565(uint8_t r, uint8_t g, uint8_t b) {
peekpt 7:856a3443f68d 480 return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
SomeRandomBloke 0:99ee879ef5a9 481 }
SomeRandomBloke 0:99ee879ef5a9 482
peekpt 7:856a3443f68d 483 #define MADCTL_MY 0x80
peekpt 7:856a3443f68d 484 #define MADCTL_MX 0x40
peekpt 7:856a3443f68d 485 #define MADCTL_MV 0x20
peekpt 7:856a3443f68d 486 #define MADCTL_ML 0x10
SomeRandomBloke 6:c964b41674fc 487 #define MADCTL_RGB 0x00
SomeRandomBloke 6:c964b41674fc 488 #define MADCTL_BGR 0x08
peekpt 7:856a3443f68d 489 #define MADCTL_MH 0x04
SomeRandomBloke 0:99ee879ef5a9 490
SomeRandomBloke 6:c964b41674fc 491 void Adafruit_ST7735::setRotation(uint8_t m) {
SomeRandomBloke 6:c964b41674fc 492 writecommand(ST7735_MADCTL);
SomeRandomBloke 6:c964b41674fc 493 rotation = m % 4; // can't be higher than 3
SomeRandomBloke 6:c964b41674fc 494 switch (rotation) {
peekpt 7:856a3443f68d 495 case 0:
peekpt 7:856a3443f68d 496 if (tabcolor == INITR_BLACKTAB || INITR_GREENTAB2) {
peekpt 7:856a3443f68d 497 writedata(MADCTL_MX | MADCTL_MY | MADCTL_RGB);
peekpt 7:856a3443f68d 498 } else {
peekpt 7:856a3443f68d 499 writedata(MADCTL_MX | MADCTL_MY | MADCTL_BGR);
peekpt 7:856a3443f68d 500 }
peekpt 7:856a3443f68d 501 _width = ST7735_TFTWIDTH;
SomeRandomBloke 6:c964b41674fc 502
peekpt 7:856a3443f68d 503 if (tabcolor == INITR_144GREENTAB)
peekpt 7:856a3443f68d 504 _height = ST7735_TFTHEIGHT_144;
peekpt 7:856a3443f68d 505 else
peekpt 7:856a3443f68d 506 _height = ST7735_TFTHEIGHT_18;
SomeRandomBloke 6:c964b41674fc 507
SomeRandomBloke 6:c964b41674fc 508 break;
peekpt 7:856a3443f68d 509 case 1:
peekpt 7:856a3443f68d 510 if (tabcolor == INITR_BLACKTAB || INITR_GREENTAB2) {
peekpt 7:856a3443f68d 511 writedata(MADCTL_MY | MADCTL_MV | MADCTL_RGB);
peekpt 7:856a3443f68d 512 } else {
peekpt 7:856a3443f68d 513 writedata(MADCTL_MY | MADCTL_MV | MADCTL_BGR);
peekpt 7:856a3443f68d 514 }
peekpt 7:856a3443f68d 515
peekpt 7:856a3443f68d 516 if (tabcolor == INITR_144GREENTAB)
peekpt 7:856a3443f68d 517 _width = ST7735_TFTHEIGHT_144;
peekpt 7:856a3443f68d 518 else
peekpt 7:856a3443f68d 519 _width = ST7735_TFTHEIGHT_18;
SomeRandomBloke 6:c964b41674fc 520
peekpt 7:856a3443f68d 521 _height = ST7735_TFTWIDTH;
peekpt 7:856a3443f68d 522 break;
peekpt 7:856a3443f68d 523 case 2:
peekpt 7:856a3443f68d 524 if (tabcolor == INITR_BLACKTAB || INITR_GREENTAB2) {
peekpt 7:856a3443f68d 525 writedata(MADCTL_RGB);
peekpt 7:856a3443f68d 526 } else {
peekpt 7:856a3443f68d 527 writedata(MADCTL_BGR);
peekpt 7:856a3443f68d 528 }
peekpt 7:856a3443f68d 529 _width = ST7735_TFTWIDTH;
peekpt 7:856a3443f68d 530 if (tabcolor == INITR_144GREENTAB)
peekpt 7:856a3443f68d 531 _height = ST7735_TFTHEIGHT_144;
peekpt 7:856a3443f68d 532 else
peekpt 7:856a3443f68d 533 _height = ST7735_TFTHEIGHT_18;
peekpt 7:856a3443f68d 534
peekpt 7:856a3443f68d 535 break;
peekpt 7:856a3443f68d 536 case 3:
peekpt 7:856a3443f68d 537 if (tabcolor == INITR_BLACKTAB || INITR_GREENTAB2) {
peekpt 7:856a3443f68d 538 writedata(MADCTL_MX | MADCTL_MV | MADCTL_RGB);
peekpt 7:856a3443f68d 539 } else {
peekpt 7:856a3443f68d 540 writedata(MADCTL_MX | MADCTL_MV | MADCTL_BGR);
peekpt 7:856a3443f68d 541 }
peekpt 7:856a3443f68d 542 if (tabcolor == INITR_144GREENTAB)
peekpt 7:856a3443f68d 543 _width = ST7735_TFTHEIGHT_144;
peekpt 7:856a3443f68d 544 else
peekpt 7:856a3443f68d 545 _width = ST7735_TFTHEIGHT_18;
peekpt 7:856a3443f68d 546
peekpt 7:856a3443f68d 547 _height = ST7735_TFTWIDTH;
peekpt 7:856a3443f68d 548 break;
SomeRandomBloke 6:c964b41674fc 549 }
SomeRandomBloke 0:99ee879ef5a9 550 }
SomeRandomBloke 0:99ee879ef5a9 551
peekpt 7:856a3443f68d 552 void Adafruit_ST7735::invertDisplay(boolean i) {
peekpt 7:856a3443f68d 553 writecommand(i ? ST7735_INVON : ST7735_INVOFF);
peekpt 8:66c5dc727281 554 }