Fork of the Adafruit ST7735R library targeted to the 1.44" TFT with custom high speed monochrome and color drawing routines. Note that this library includes modifications to use a shared SPI module to simplify projects that use the SPI for several peripherals. Read the WIKI to see how to get this library working in your own project.

Fork of Adafruit_ST7735 by Andrew Lindsay

This library is a modification of Andrew Lindsay's ST7735 Adafruit library. It includes custom bitmap drawing routines that work around 15 times faster when using custom byte arrays generated by my png to char array converter.

For more info look to the detailed post explaining the changes and where you can download the converter binaries as well: http://alfredoer.com/microcontrollers-2/adafruit-image-bitmap-generator/

IMPORTANT: One of the main modifications is that this library does not instantiate an SPI object directly, rather it is meant to use a shared SPI object exported in a "board.h" file elsewhere in your project.

The contents of such a file can be something like:

ifndef BOARD_H_

  1. define BOARD_H_
  1. include <mbed.h>
  2. include <rtos.h> extern Mutex spi_mutex; extern SPI spi_port;
  1. endif

And of course, the objects should be instantiated somewhere (like in board.c) like this (for a KL25z, modify as needed):

mosi, miso, sck Mutex spi_mutex; SPI spi_port( PTD2, PTD3, PTD1);

The rationale is that several modules can use the hardware SPI port on several threads and coexist happily with each other.

Committer:
SomeRandomBloke
Date:
Tue Mar 26 23:09:06 2013 +0000
Revision:
0:99ee879ef5a9
Child:
1:226fd3534967
new commit;

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 0:99ee879ef5a9 25 : lcdPort(mosi, miso, sck), _cs(cs), _rs(rs), _rst(rst)
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 constructor(ST7735_TFTWIDTH, ST7735_TFTHEIGHT);
SomeRandomBloke 0:99ee879ef5a9 223 colstart = rowstart = 0; // May be overridden in init func
SomeRandomBloke 0:99ee879ef5a9 224
SomeRandomBloke 0:99ee879ef5a9 225 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 226 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 227
SomeRandomBloke 0:99ee879ef5a9 228 // use default SPI format
SomeRandomBloke 0:99ee879ef5a9 229 lcdPort.format(8,0);
SomeRandomBloke 0:99ee879ef5a9 230 lcdPort.frequency(20000000); // Lets try 8MHz
SomeRandomBloke 0:99ee879ef5a9 231
SomeRandomBloke 0:99ee879ef5a9 232 // toggle RST low to reset; CS low so it'll listen to us
SomeRandomBloke 0:99ee879ef5a9 233 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 234 _rst = 1;
SomeRandomBloke 0:99ee879ef5a9 235 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 236 _rst = 0;
SomeRandomBloke 0:99ee879ef5a9 237 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 238 _rst = 1;
SomeRandomBloke 0:99ee879ef5a9 239 wait_ms(500);
SomeRandomBloke 0:99ee879ef5a9 240
SomeRandomBloke 0:99ee879ef5a9 241 if(cmdList) commandList(cmdList);
SomeRandomBloke 0:99ee879ef5a9 242 }
SomeRandomBloke 0:99ee879ef5a9 243
SomeRandomBloke 0:99ee879ef5a9 244
SomeRandomBloke 0:99ee879ef5a9 245 // Initialization for ST7735B screens
SomeRandomBloke 0:99ee879ef5a9 246 void Adafruit_ST7735::initB(void)
SomeRandomBloke 0:99ee879ef5a9 247 {
SomeRandomBloke 0:99ee879ef5a9 248 commonInit(Bcmd);
SomeRandomBloke 0:99ee879ef5a9 249 }
SomeRandomBloke 0:99ee879ef5a9 250
SomeRandomBloke 0:99ee879ef5a9 251
SomeRandomBloke 0:99ee879ef5a9 252 // Initialization for ST7735R screens (green or red tabs)
SomeRandomBloke 0:99ee879ef5a9 253 void Adafruit_ST7735::initR(uint8_t options)
SomeRandomBloke 0:99ee879ef5a9 254 {
SomeRandomBloke 0:99ee879ef5a9 255 commonInit(Rcmd1);
SomeRandomBloke 0:99ee879ef5a9 256 if(options == INITR_GREENTAB) {
SomeRandomBloke 0:99ee879ef5a9 257 commandList(Rcmd2green);
SomeRandomBloke 0:99ee879ef5a9 258 colstart = 2;
SomeRandomBloke 0:99ee879ef5a9 259 rowstart = 1;
SomeRandomBloke 0:99ee879ef5a9 260 } else {
SomeRandomBloke 0:99ee879ef5a9 261 // colstart, rowstart left at default '0' values
SomeRandomBloke 0:99ee879ef5a9 262 commandList(Rcmd2red);
SomeRandomBloke 0:99ee879ef5a9 263 }
SomeRandomBloke 0:99ee879ef5a9 264 commandList(Rcmd3);
SomeRandomBloke 0:99ee879ef5a9 265 }
SomeRandomBloke 0:99ee879ef5a9 266
SomeRandomBloke 0:99ee879ef5a9 267
SomeRandomBloke 0:99ee879ef5a9 268 void Adafruit_ST7735::setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1,
SomeRandomBloke 0:99ee879ef5a9 269 uint8_t y1)
SomeRandomBloke 0:99ee879ef5a9 270 {
SomeRandomBloke 0:99ee879ef5a9 271
SomeRandomBloke 0:99ee879ef5a9 272 writecommand(ST7735_CASET); // Column addr set
SomeRandomBloke 0:99ee879ef5a9 273 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 274 writedata(x0+colstart); // XSTART
SomeRandomBloke 0:99ee879ef5a9 275 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 276 writedata(x1+colstart); // XEND
SomeRandomBloke 0:99ee879ef5a9 277
SomeRandomBloke 0:99ee879ef5a9 278 writecommand(ST7735_RASET); // Row addr set
SomeRandomBloke 0:99ee879ef5a9 279 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 280 writedata(y0+rowstart); // YSTART
SomeRandomBloke 0:99ee879ef5a9 281 writedata(0x00);
SomeRandomBloke 0:99ee879ef5a9 282 writedata(y1+rowstart); // YEND
SomeRandomBloke 0:99ee879ef5a9 283
SomeRandomBloke 0:99ee879ef5a9 284 writecommand(ST7735_RAMWR); // write to RAM
SomeRandomBloke 0:99ee879ef5a9 285 }
SomeRandomBloke 0:99ee879ef5a9 286
SomeRandomBloke 0:99ee879ef5a9 287
SomeRandomBloke 0:99ee879ef5a9 288 void Adafruit_ST7735::fillScreen(uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 289 {
SomeRandomBloke 0:99ee879ef5a9 290
SomeRandomBloke 0:99ee879ef5a9 291 uint8_t x, y, hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 292
SomeRandomBloke 0:99ee879ef5a9 293 setAddrWindow(0, 0, _width-1, _height-1);
SomeRandomBloke 0:99ee879ef5a9 294
SomeRandomBloke 0:99ee879ef5a9 295 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 296 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 297
SomeRandomBloke 0:99ee879ef5a9 298 for(y=_height; y>0; y--) {
SomeRandomBloke 0:99ee879ef5a9 299 for(x=_width; x>0; x--) {
SomeRandomBloke 0:99ee879ef5a9 300 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 301 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 302 }
SomeRandomBloke 0:99ee879ef5a9 303 }
SomeRandomBloke 0:99ee879ef5a9 304
SomeRandomBloke 0:99ee879ef5a9 305 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 306 }
SomeRandomBloke 0:99ee879ef5a9 307
SomeRandomBloke 0:99ee879ef5a9 308
SomeRandomBloke 0:99ee879ef5a9 309 void Adafruit_ST7735::pushColor(uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 310 {
SomeRandomBloke 0:99ee879ef5a9 311 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 312 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 313
SomeRandomBloke 0:99ee879ef5a9 314 lcdPort.write( color >> 8 );
SomeRandomBloke 0:99ee879ef5a9 315 lcdPort.write( color );
SomeRandomBloke 0:99ee879ef5a9 316 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 317 }
SomeRandomBloke 0:99ee879ef5a9 318
SomeRandomBloke 0:99ee879ef5a9 319
SomeRandomBloke 0:99ee879ef5a9 320 void Adafruit_ST7735::drawPixel(int16_t x, int16_t y, uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 321 {
SomeRandomBloke 0:99ee879ef5a9 322
SomeRandomBloke 0:99ee879ef5a9 323 if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 324
SomeRandomBloke 0:99ee879ef5a9 325 setAddrWindow(x,y,x+1,y+1);
SomeRandomBloke 0:99ee879ef5a9 326
SomeRandomBloke 0:99ee879ef5a9 327 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 328 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 329
SomeRandomBloke 0:99ee879ef5a9 330 lcdPort.write( color >> 8 );
SomeRandomBloke 0:99ee879ef5a9 331 lcdPort.write( color );
SomeRandomBloke 0:99ee879ef5a9 332
SomeRandomBloke 0:99ee879ef5a9 333 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 334 }
SomeRandomBloke 0:99ee879ef5a9 335
SomeRandomBloke 0:99ee879ef5a9 336
SomeRandomBloke 0:99ee879ef5a9 337 void Adafruit_ST7735::drawFastVLine(int16_t x, int16_t y, int16_t h,
SomeRandomBloke 0:99ee879ef5a9 338 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 339 {
SomeRandomBloke 0:99ee879ef5a9 340
SomeRandomBloke 0:99ee879ef5a9 341 // Rudimentary clipping
SomeRandomBloke 0:99ee879ef5a9 342 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 343 if((y+h-1) >= _height) h = _height-y;
SomeRandomBloke 0:99ee879ef5a9 344 setAddrWindow(x, y, x, y+h-1);
SomeRandomBloke 0:99ee879ef5a9 345
SomeRandomBloke 0:99ee879ef5a9 346 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 347 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 348 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 349 while (h--) {
SomeRandomBloke 0:99ee879ef5a9 350 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 351 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 352 }
SomeRandomBloke 0:99ee879ef5a9 353 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 354 }
SomeRandomBloke 0:99ee879ef5a9 355
SomeRandomBloke 0:99ee879ef5a9 356
SomeRandomBloke 0:99ee879ef5a9 357 void Adafruit_ST7735::drawFastHLine(int16_t x, int16_t y, int16_t w,
SomeRandomBloke 0:99ee879ef5a9 358 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 359 {
SomeRandomBloke 0:99ee879ef5a9 360
SomeRandomBloke 0:99ee879ef5a9 361 // Rudimentary clipping
SomeRandomBloke 0:99ee879ef5a9 362 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 363 if((x+w-1) >= _width) w = _width-x;
SomeRandomBloke 0:99ee879ef5a9 364 setAddrWindow(x, y, x+w-1, y);
SomeRandomBloke 0:99ee879ef5a9 365
SomeRandomBloke 0:99ee879ef5a9 366 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 367 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 368 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 369 while (w--) {
SomeRandomBloke 0:99ee879ef5a9 370 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 371 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 372 }
SomeRandomBloke 0:99ee879ef5a9 373 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 374 }
SomeRandomBloke 0:99ee879ef5a9 375
SomeRandomBloke 0:99ee879ef5a9 376
SomeRandomBloke 0:99ee879ef5a9 377 // fill a rectangle
SomeRandomBloke 0:99ee879ef5a9 378 void Adafruit_ST7735::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
SomeRandomBloke 0:99ee879ef5a9 379 uint16_t color)
SomeRandomBloke 0:99ee879ef5a9 380 {
SomeRandomBloke 0:99ee879ef5a9 381
SomeRandomBloke 0:99ee879ef5a9 382 // rudimentary clipping (drawChar w/big text requires this)
SomeRandomBloke 0:99ee879ef5a9 383 if((x >= _width) || (y >= _height)) return;
SomeRandomBloke 0:99ee879ef5a9 384 if((x + w - 1) >= _width) w = _width - x;
SomeRandomBloke 0:99ee879ef5a9 385 if((y + h - 1) >= _height) h = _height - y;
SomeRandomBloke 0:99ee879ef5a9 386
SomeRandomBloke 0:99ee879ef5a9 387 setAddrWindow(x, y, x+w-1, y+h-1);
SomeRandomBloke 0:99ee879ef5a9 388
SomeRandomBloke 0:99ee879ef5a9 389 uint8_t hi = color >> 8, lo = color;
SomeRandomBloke 0:99ee879ef5a9 390 _rs = 1;
SomeRandomBloke 0:99ee879ef5a9 391 _cs = 0;
SomeRandomBloke 0:99ee879ef5a9 392 for(y=h; y>0; y--) {
SomeRandomBloke 0:99ee879ef5a9 393 for(x=w; x>0; x--) {
SomeRandomBloke 0:99ee879ef5a9 394 lcdPort.write( hi );
SomeRandomBloke 0:99ee879ef5a9 395 lcdPort.write( lo );
SomeRandomBloke 0:99ee879ef5a9 396 }
SomeRandomBloke 0:99ee879ef5a9 397 }
SomeRandomBloke 0:99ee879ef5a9 398
SomeRandomBloke 0:99ee879ef5a9 399 _cs = 1;
SomeRandomBloke 0:99ee879ef5a9 400 }
SomeRandomBloke 0:99ee879ef5a9 401
SomeRandomBloke 0:99ee879ef5a9 402
SomeRandomBloke 0:99ee879ef5a9 403 // Pass 8-bit (each) R,G,B, get back 16-bit packed color
SomeRandomBloke 0:99ee879ef5a9 404 uint16_t Adafruit_ST7735::Color565(uint8_t r, uint8_t g, uint8_t b)
SomeRandomBloke 0:99ee879ef5a9 405 {
SomeRandomBloke 0:99ee879ef5a9 406 return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
SomeRandomBloke 0:99ee879ef5a9 407 }
SomeRandomBloke 0:99ee879ef5a9 408
SomeRandomBloke 0:99ee879ef5a9 409
SomeRandomBloke 0:99ee879ef5a9 410 #define MADCTL_MY 0x80
SomeRandomBloke 0:99ee879ef5a9 411 #define MADCTL_MX 0x40
SomeRandomBloke 0:99ee879ef5a9 412 #define MADCTL_MV 0x20
SomeRandomBloke 0:99ee879ef5a9 413 #define MADCTL_ML 0x10
SomeRandomBloke 0:99ee879ef5a9 414 #define MADCTL_RGB 0x08
SomeRandomBloke 0:99ee879ef5a9 415 #define MADCTL_MH 0x04
SomeRandomBloke 0:99ee879ef5a9 416
SomeRandomBloke 0:99ee879ef5a9 417 void Adafruit_ST7735::setRotation(uint8_t m)
SomeRandomBloke 0:99ee879ef5a9 418 {
SomeRandomBloke 0:99ee879ef5a9 419
SomeRandomBloke 0:99ee879ef5a9 420 writecommand(ST7735_MADCTL);
SomeRandomBloke 0:99ee879ef5a9 421 rotation = m % 4; // can't be higher than 3
SomeRandomBloke 0:99ee879ef5a9 422 switch (rotation) {
SomeRandomBloke 0:99ee879ef5a9 423 case 0:
SomeRandomBloke 0:99ee879ef5a9 424 writedata(MADCTL_MX | MADCTL_MY | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 425 _width = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 426 _height = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 427 break;
SomeRandomBloke 0:99ee879ef5a9 428 case 1:
SomeRandomBloke 0:99ee879ef5a9 429 writedata(MADCTL_MY | MADCTL_MV | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 430 _width = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 431 _height = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 432 break;
SomeRandomBloke 0:99ee879ef5a9 433 case 2:
SomeRandomBloke 0:99ee879ef5a9 434 writedata(MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 435 _width = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 436 _height = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 437 break;
SomeRandomBloke 0:99ee879ef5a9 438 case 3:
SomeRandomBloke 0:99ee879ef5a9 439 writedata(MADCTL_MX | MADCTL_MV | MADCTL_RGB);
SomeRandomBloke 0:99ee879ef5a9 440 _width = ST7735_TFTHEIGHT;
SomeRandomBloke 0:99ee879ef5a9 441 _height = ST7735_TFTWIDTH;
SomeRandomBloke 0:99ee879ef5a9 442 break;
SomeRandomBloke 0:99ee879ef5a9 443 }
SomeRandomBloke 0:99ee879ef5a9 444 }
SomeRandomBloke 0:99ee879ef5a9 445
SomeRandomBloke 0:99ee879ef5a9 446
SomeRandomBloke 0:99ee879ef5a9 447 void Adafruit_ST7735::invertDisplay(boolean i)
SomeRandomBloke 0:99ee879ef5a9 448 {
SomeRandomBloke 0:99ee879ef5a9 449 writecommand(i ? ST7735_INVON : ST7735_INVOFF);
SomeRandomBloke 0:99ee879ef5a9 450 }
SomeRandomBloke 0:99ee879ef5a9 451
SomeRandomBloke 0:99ee879ef5a9 452