Jurica Resetar / GDEP015OC1

EPD display library.

Dependents:   acd52832_ePaper acd52832_SAADC_Differential_input_2 acd52832_SAADC_Differential_input_EPD acd52832_Car_battery_ch ... more

Fork of GDEP015OC1 by aconno dev team

GDEP015OC1.cpp@2:1c8f73aa2a16, 2016-09-15 (annotated)

Committer:
Anunnaki
Date:
Thu Sep 15 09:19:30 2016 +0000
Revision:
2:1c8f73aa2a16
Parent:
1:4fff95e316c9
Child:
3:dc7b794b59b7
Written the basic functions and confirmed the library functionality.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Anunnaki 1:4fff95e316c9 1 #include "mbed.h"
Anunnaki 1:4fff95e316c9 2 #include "GDEP015OC1.h"
Anunnaki 1:4fff95e316c9 3
Anunnaki 2:1c8f73aa2a16 4 static const unsigned char _lutFull[] = {
Anunnaki 2:1c8f73aa2a16 5 0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22, 0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99,
Anunnaki 2:1c8f73aa2a16 6 0x88, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51, 0x35, 0x51, 0x51, 0x19, 0x01, 0x00
Anunnaki 2:1c8f73aa2a16 7 };
Anunnaki 2:1c8f73aa2a16 8
Anunnaki 2:1c8f73aa2a16 9 GDEP015OC1::GDEP015OC1(SPI& spi, PinName cs=p5, PinName dc=p6, PinName rst=p7, PinName busy=p8) : _spi(spi), _cs(cs), _dc(dc), _rst(rst), _busy(busy){
Anunnaki 1:4fff95e316c9 10 _init();
Anunnaki 1:4fff95e316c9 11 }
Anunnaki 1:4fff95e316c9 12
Anunnaki 2:1c8f73aa2a16 13 void GDEP015OC1::_spiCommand(unsigned char command){
Anunnaki 2:1c8f73aa2a16 14 _cs = _dc = 0;
Anunnaki 2:1c8f73aa2a16 15 wait_us(1);
Anunnaki 2:1c8f73aa2a16 16
Anunnaki 2:1c8f73aa2a16 17 _spi.write(command);
Anunnaki 2:1c8f73aa2a16 18 }
Anunnaki 2:1c8f73aa2a16 19
Anunnaki 2:1c8f73aa2a16 20 void GDEP015OC1::_spiData(unsigned char data){
Anunnaki 2:1c8f73aa2a16 21 _cs = 0;
Anunnaki 2:1c8f73aa2a16 22 _dc = 1;
Anunnaki 2:1c8f73aa2a16 23 wait_us(1);
Anunnaki 2:1c8f73aa2a16 24
Anunnaki 2:1c8f73aa2a16 25 _spi.write(data);
Anunnaki 2:1c8f73aa2a16 26 }
Anunnaki 2:1c8f73aa2a16 27
Anunnaki 2:1c8f73aa2a16 28 void GDEP015OC1::_init(void){
Anunnaki 2:1c8f73aa2a16 29 _rst = _cs = 1;
Anunnaki 2:1c8f73aa2a16 30 //empty();
Anunnaki 1:4fff95e316c9 31 }
Anunnaki 1:4fff95e316c9 32
Anunnaki 2:1c8f73aa2a16 33 void GDEP015OC1::_wakeUp(void){
Anunnaki 2:1c8f73aa2a16 34 _rst = 0;
Anunnaki 2:1c8f73aa2a16 35 wait_ms(10);
Anunnaki 2:1c8f73aa2a16 36 _rst = 1;
Anunnaki 2:1c8f73aa2a16 37 wait_ms(10);
Anunnaki 1:4fff95e316c9 38
Anunnaki 2:1c8f73aa2a16 39 //Stage 3
Anunnaki 2:1c8f73aa2a16 40 //Driver Output control
Anunnaki 2:1c8f73aa2a16 41 _spiCommand(0x01);
Anunnaki 2:1c8f73aa2a16 42 _spiData(0xC7);
Anunnaki 2:1c8f73aa2a16 43 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 44 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 45 //Softstart
Anunnaki 2:1c8f73aa2a16 46 _spiCommand(0x0C);
Anunnaki 2:1c8f73aa2a16 47 _spiData(0xD7);
Anunnaki 2:1c8f73aa2a16 48 _spiData(0xD6);
Anunnaki 2:1c8f73aa2a16 49 _spiData(0x9D);
Anunnaki 2:1c8f73aa2a16 50
Anunnaki 2:1c8f73aa2a16 51 _spiCommand(0x22);
Anunnaki 2:1c8f73aa2a16 52 _spiData(0xF0);
Anunnaki 2:1c8f73aa2a16 53
Anunnaki 2:1c8f73aa2a16 54 //VCOM setting
Anunnaki 2:1c8f73aa2a16 55 _spiCommand(0x2C);
Anunnaki 2:1c8f73aa2a16 56 _spiData(0xA8);
Anunnaki 2:1c8f73aa2a16 57 //Dummy line period
Anunnaki 2:1c8f73aa2a16 58 _spiCommand(0x3A);
Anunnaki 2:1c8f73aa2a16 59 _spiData(0x1A);
Anunnaki 2:1c8f73aa2a16 60 //Gate line width
Anunnaki 2:1c8f73aa2a16 61 _spiCommand(0x3B);
Anunnaki 2:1c8f73aa2a16 62 _spiData(0x08);
Anunnaki 2:1c8f73aa2a16 63 //Set data entry mode
Anunnaki 2:1c8f73aa2a16 64 _spiCommand(0x11);
Anunnaki 2:1c8f73aa2a16 65 _spiData(0x01); //DO NOT TOUCH THIS! (MUST BE 0x01)
Anunnaki 2:1c8f73aa2a16 66
Anunnaki 2:1c8f73aa2a16 67 //Gate driver start position
Anunnaki 2:1c8f73aa2a16 68 _spiCommand(0x0F);
Anunnaki 2:1c8f73aa2a16 69 _spiData(0x2B);
Anunnaki 2:1c8f73aa2a16 70 _spiData(0x01);
Anunnaki 2:1c8f73aa2a16 71
Anunnaki 2:1c8f73aa2a16 72 //VGH VGL
Anunnaki 2:1c8f73aa2a16 73 _spiCommand(0x03);
Anunnaki 2:1c8f73aa2a16 74 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 75 //VSH, VSL
Anunnaki 2:1c8f73aa2a16 76 _spiCommand(0x04);
Anunnaki 2:1c8f73aa2a16 77 _spiData(0x0A);
Anunnaki 2:1c8f73aa2a16 78
Anunnaki 2:1c8f73aa2a16 79 //Define X display size
Anunnaki 2:1c8f73aa2a16 80 _spiCommand(0x44);
Anunnaki 2:1c8f73aa2a16 81 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 82 _spiData(0x18);
Anunnaki 2:1c8f73aa2a16 83 //Define Y display size
Anunnaki 2:1c8f73aa2a16 84 _spiCommand(0x45);
Anunnaki 2:1c8f73aa2a16 85 _spiData(0xC7);
Anunnaki 2:1c8f73aa2a16 86 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 87 _spiData(0x2B);
Anunnaki 2:1c8f73aa2a16 88 _spiData(0x01);
Anunnaki 2:1c8f73aa2a16 89
Anunnaki 2:1c8f73aa2a16 90 //Define X RAM address
Anunnaki 2:1c8f73aa2a16 91 _spiCommand(0x4E);
Anunnaki 2:1c8f73aa2a16 92 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 93 //Define Y RAM address
Anunnaki 2:1c8f73aa2a16 94 _spiCommand(0x4F);
Anunnaki 2:1c8f73aa2a16 95 _spiData(0xC7);
Anunnaki 2:1c8f73aa2a16 96 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 97
Anunnaki 2:1c8f73aa2a16 98 //Border waveform control
Anunnaki 2:1c8f73aa2a16 99 _spiCommand(0x3C);
Anunnaki 2:1c8f73aa2a16 100 _spiData(0x33);
Anunnaki 2:1c8f73aa2a16 101
Anunnaki 2:1c8f73aa2a16 102 //Write LUT
Anunnaki 2:1c8f73aa2a16 103 _spiCommand(0x32);
Anunnaki 2:1c8f73aa2a16 104 for(uint8_t i = 0; i<30;i++)
Anunnaki 2:1c8f73aa2a16 105 _spiData(_lutFull[i]);
Anunnaki 2:1c8f73aa2a16 106
Anunnaki 2:1c8f73aa2a16 107 //Power on
Anunnaki 2:1c8f73aa2a16 108 _spiCommand(0x22);
Anunnaki 2:1c8f73aa2a16 109 _spiData(0xC0);
Anunnaki 2:1c8f73aa2a16 110
Anunnaki 2:1c8f73aa2a16 111 //Define X RAM address
Anunnaki 2:1c8f73aa2a16 112 _spiCommand(0x4E);
Anunnaki 2:1c8f73aa2a16 113 _spiData(0x00);
Anunnaki 2:1c8f73aa2a16 114 //Define Y RAM address
Anunnaki 2:1c8f73aa2a16 115 _spiCommand(0x4F);
Anunnaki 2:1c8f73aa2a16 116 _spiData(0xC7);
Anunnaki 2:1c8f73aa2a16 117 _spiData(0x00);
Anunnaki 1:4fff95e316c9 118 }
Anunnaki 1:4fff95e316c9 119
Anunnaki 2:1c8f73aa2a16 120 void GDEP015OC1::_sleep(void){
Anunnaki 2:1c8f73aa2a16 121 while(_busy == BUSY_STATE);
Anunnaki 2:1c8f73aa2a16 122
Anunnaki 2:1c8f73aa2a16 123 _spiCommand(0x10);
Anunnaki 2:1c8f73aa2a16 124 _spiData(0x01);
Anunnaki 2:1c8f73aa2a16 125 }
Anunnaki 2:1c8f73aa2a16 126
Anunnaki 2:1c8f73aa2a16 127 //If you touch this function satan will feast on your soul for an eternity!
Anunnaki 2:1c8f73aa2a16 128 unsigned char GDEP015OC1::_pixelConv(unsigned char *data, int i){
Anunnaki 2:1c8f73aa2a16 129 uint8_t pix = 0x00;
Anunnaki 2:1c8f73aa2a16 130 for(uint8_t x = 0; x < 8; x++){
Anunnaki 2:1c8f73aa2a16 131 pix |= ((*(data + (i*200)%5000 + (24-i/200) + x*25)>>((i/25)%8))&(0x01))<<(7-x);
Anunnaki 2:1c8f73aa2a16 132 }
Anunnaki 2:1c8f73aa2a16 133 return pix;
Anunnaki 2:1c8f73aa2a16 134 }
Anunnaki 2:1c8f73aa2a16 135
Anunnaki 2:1c8f73aa2a16 136 uint8_t GDEP015OC1::_mirrorData(uint8_t data){
Anunnaki 2:1c8f73aa2a16 137 uint8_t mirror = 0x00;
Anunnaki 2:1c8f73aa2a16 138 for(uint8_t i=0; i<8; i++)
Anunnaki 2:1c8f73aa2a16 139 mirror |= ((data>>i) & 0x01) << (7 - i);
Anunnaki 2:1c8f73aa2a16 140
Anunnaki 2:1c8f73aa2a16 141 return mirror;
Anunnaki 2:1c8f73aa2a16 142 }
Anunnaki 2:1c8f73aa2a16 143
Anunnaki 2:1c8f73aa2a16 144 void GDEP015OC1::empty(void){
Anunnaki 2:1c8f73aa2a16 145 for(uint16_t x=0; x<5000; x++)
Anunnaki 2:1c8f73aa2a16 146 _buffer[x] = 0x00;
Anunnaki 2:1c8f73aa2a16 147 }
Anunnaki 2:1c8f73aa2a16 148
Anunnaki 2:1c8f73aa2a16 149 void GDEP015OC1::write(void){
Anunnaki 2:1c8f73aa2a16 150 _wakeUp();
Anunnaki 2:1c8f73aa2a16 151
Anunnaki 2:1c8f73aa2a16 152 _spiCommand(0x24);
Anunnaki 2:1c8f73aa2a16 153 for(int16_t x=0; x>=0 && x<200; x++){
Anunnaki 2:1c8f73aa2a16 154 for(int16_t y=24; y>=0 && y<25; y--){
Anunnaki 2:1c8f73aa2a16 155 _spiData(_mirrorData(_pixelConv(_buffer, x*25+y)));
Anunnaki 2:1c8f73aa2a16 156 wait_us(10);
Anunnaki 2:1c8f73aa2a16 157 }
Anunnaki 2:1c8f73aa2a16 158 }
Anunnaki 2:1c8f73aa2a16 159
Anunnaki 2:1c8f73aa2a16 160 _spiCommand(0x22);
Anunnaki 2:1c8f73aa2a16 161 _spiData(0x04);
Anunnaki 2:1c8f73aa2a16 162 _spiCommand(0x22);
Anunnaki 2:1c8f73aa2a16 163 _spiData(0x08);
Anunnaki 2:1c8f73aa2a16 164
Anunnaki 2:1c8f73aa2a16 165 //Update
Anunnaki 2:1c8f73aa2a16 166 _spiCommand(0x22);
Anunnaki 2:1c8f73aa2a16 167 _spiData(0xC7);
Anunnaki 2:1c8f73aa2a16 168 _spiCommand(0x20);
Anunnaki 2:1c8f73aa2a16 169
Anunnaki 2:1c8f73aa2a16 170 _sleep();
Anunnaki 2:1c8f73aa2a16 171 }
Anunnaki 2:1c8f73aa2a16 172
Anunnaki 2:1c8f73aa2a16 173 void GDEP015OC1::drawPixel(uint16_t startX, uint16_t startY, bool color=0){
Anunnaki 2:1c8f73aa2a16 174 if(startX>199 || startY>199) return;
Anunnaki 2:1c8f73aa2a16 175
Anunnaki 2:1c8f73aa2a16 176 uint16_t i = startX/8 + startY*25;
Anunnaki 2:1c8f73aa2a16 177
Anunnaki 2:1c8f73aa2a16 178 if(!color)
Anunnaki 2:1c8f73aa2a16 179 _buffer[i] = (_buffer[i] | (1<<(7-startX%8)));
Anunnaki 2:1c8f73aa2a16 180 else
Anunnaki 2:1c8f73aa2a16 181 _buffer[i] = (_buffer[i] & (0xFF^(1<<(7-startX%8))));
Anunnaki 2:1c8f73aa2a16 182 }
Anunnaki 2:1c8f73aa2a16 183
Anunnaki 2:1c8f73aa2a16 184
Anunnaki 2:1c8f73aa2a16 185 void GDEP015OC1::drawLine(uint16_t startX, uint16_t startY, uint16_t stopX, uint16_t stopY, bool color=0){
Anunnaki 2:1c8f73aa2a16 186 int dx = abs(stopX-startX), sx = startX<stopX ? 1 : -1;
Anunnaki 2:1c8f73aa2a16 187 int dy = abs(stopY-startY), sy = startY<stopY ? 1 : -1;
Anunnaki 2:1c8f73aa2a16 188 int err = (dx>dy ? dx : -dy)/2, e2;
Anunnaki 2:1c8f73aa2a16 189
Anunnaki 2:1c8f73aa2a16 190 for(;;){
Anunnaki 2:1c8f73aa2a16 191 drawPixel(startX,startY,color);
Anunnaki 2:1c8f73aa2a16 192 if (startX==stopX && startY==stopY) break;
Anunnaki 2:1c8f73aa2a16 193 e2 = err;
Anunnaki 2:1c8f73aa2a16 194 if (e2 >-dx) { err -= dy; startX += sx; }
Anunnaki 2:1c8f73aa2a16 195 if (e2 < dy) { err += dx; startY += sy; }
Anunnaki 2:1c8f73aa2a16 196 }
Anunnaki 2:1c8f73aa2a16 197 }