110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
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// This is the command sequence that initialises the ST7796 driver
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//
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// This setup information uses simple 8 bit SPI writecommand() and writedata() functions
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//
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// See ST7735_Setup.h file for an alternative format
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#define TFT_INIT_DELAY 0
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{
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delay(120);
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writecommand(0x01); //Software reset
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delay(120);
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writecommand(0x11); //Sleep exit
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delay(120);
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writecommand(0xF0); //Command Set control
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writedata(0xC3); //Enable extension command 2 partI
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writecommand(0xF0); //Command Set control
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writedata(0x96); //Enable extension command 2 partII
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writecommand(0x36); //Memory Data Access Control MX, MY, RGB mode
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writedata(0x48); //X-Mirror, Top-Left to right-Buttom, RGB
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writecommand(0x3A); //Interface Pixel Format
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writedata(0x05); //Control interface color format set to 16
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writecommand(0xB4); //Column inversion
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writedata(0x01); //1-dot inversion
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writecommand(0xB6); //Display Function Control
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writedata(0x20); //RGB interface for RAM access, RGB transfer in DE mode
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//display data path in memory
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//Gate outputs in non-display area in Normal scan
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//Source output in non-display area =V63
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writedata(0x02); //Source Output Scan from S1 to S960, Gate Output scan from G1 to G480, scan cycle=2
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writedata(0x3B); //LCD Drive Line=8*(59+1)
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writecommand(0xE8); //Display Output Ctrl Adjust
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writedata(0x40);
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writedata(0x8A);
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writedata(0x00);
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writedata(0x00);
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writedata(0x29); //Source eqaulizing period time= 22.5 us
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writedata(0x19); //Timing for "Gate start"=25 (Tclk)
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writedata(0xA5); //Timing for "Gate End"=37 (Tclk), Gate driver EQ function ON
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writedata(0x33);
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writecommand(0xC1); //Power control2
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writedata(0x06); //VAP(GVDD)=3.85+( vcom+vcom offset), VAN(GVCL)=-3.85+( vcom+vcom offset)
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writecommand(0xC2); //Power control 3
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writedata(0xA7); //Source driving current level=low, Gamma driving current level=High
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writecommand(0xC5); //VCOM Control
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writedata(0x18); //VCOM=0.9
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delay(120);
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//ST7796 Gamma Sequence
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writecommand(0xE0); //Gamma"+"
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writedata(0xF0);
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writedata(0x09);
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writedata(0x0b);
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writedata(0x06);
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writedata(0x04);
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writedata(0x15);
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writedata(0x2F);
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writedata(0x54);
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writedata(0x42);
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writedata(0x3C);
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writedata(0x17);
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writedata(0x14);
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writedata(0x18);
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writedata(0x1B);
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writecommand(0xE1); //Gamma"-"
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writedata(0xE0);
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writedata(0x09);
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writedata(0x0B);
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writedata(0x06);
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writedata(0x04);
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writedata(0x03);
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writedata(0x2B);
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writedata(0x43);
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writedata(0x42);
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writedata(0x3B);
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writedata(0x16);
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writedata(0x14);
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writedata(0x17);
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writedata(0x1B);
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delay(120);
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writecommand(0xF0); //Command Set control
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writedata(0x3C); //Disable extension command 2 partI
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writecommand(0xF0); //Command Set control
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writedata(0x69); //Disable extension command 2 partII
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end_tft_write();
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delay(120);
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begin_tft_write();
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writecommand(0x29); //Display on
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} |