forked from Bodmer/TFT_eSPI
Bodmer
3c6dab0a52
// For RP2040 processor and 8 or 16 bit parallel displays: // The parallel interface write cycle period is derived from a division of the CPU clock // speed so scales with the processor clock. This means that the divider ratio may need // to be increased when overclocking. I may also need to be adjusted dependant on the // display controller type (ILI94341, HX8357C etc). If RP2040_PIO_CLK_DIV is not defined // the library will set default values which may not suit your display. // The display controller data sheet will specify the minimum write cycle period. The // controllers often work reliably for shorter periods, however if the period is too short // the display may not initialise or graphics will become corrupted. // PIO write cycle frequency = (CPU clock/(4 * RP2040_PIO_CLK_DIV)) //#define RP2040_PIO_CLK_DIV 1 // 32ns write cycle at 125MHz CPU clock #define RP2040_PIO_CLK_DIV 2 // 64ns write cycle at 125MHz CPU clock //#define RP2040_PIO_CLK_DIV 3 // 96ns write cycle at 125MHz CPU clock
129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
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// This is the command sequence that initialises the ST7789 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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{
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writecommand(ST7789_SLPOUT); // Sleep out
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delay(120);
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writecommand(ST7789_NORON); // Normal display mode on
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//------------------------------display and color format setting--------------------------------//
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writecommand(ST7789_MADCTL);
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//writedata(0x00);
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writedata(TFT_MAD_COLOR_ORDER);
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// JLX240 display datasheet
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writecommand(0xB6);
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writedata(0x0A);
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writedata(0x82);
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writecommand(ST7789_RAMCTRL);
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writedata(0x00);
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writedata(0xE0); // 5 to 6 bit conversion: r0 = r5, b0 = b5
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writecommand(ST7789_COLMOD);
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writedata(0x55);
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delay(10);
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//--------------------------------ST7789V Frame rate setting----------------------------------//
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writecommand(ST7789_PORCTRL);
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writedata(0x0c);
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writedata(0x0c);
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writedata(0x00);
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writedata(0x33);
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writedata(0x33);
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writecommand(ST7789_GCTRL); // Voltages: VGH / VGL
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writedata(0x35);
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//---------------------------------ST7789V Power setting--------------------------------------//
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writecommand(ST7789_VCOMS);
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writedata(0x28); // JLX240 display datasheet
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writecommand(ST7789_LCMCTRL);
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writedata(0x0C);
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writecommand(ST7789_VDVVRHEN);
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writedata(0x01);
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writedata(0xFF);
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writecommand(ST7789_VRHS); // voltage VRHS
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writedata(0x10);
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writecommand(ST7789_VDVSET);
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writedata(0x20);
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writecommand(ST7789_FRCTR2);
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writedata(0x0f);
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writecommand(ST7789_PWCTRL1);
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writedata(0xa4);
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writedata(0xa1);
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//--------------------------------ST7789V gamma setting---------------------------------------//
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writecommand(ST7789_PVGAMCTRL);
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writedata(0xd0);
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writedata(0x00);
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writedata(0x02);
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writedata(0x07);
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writedata(0x0a);
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writedata(0x28);
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writedata(0x32);
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writedata(0x44);
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writedata(0x42);
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writedata(0x06);
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writedata(0x0e);
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writedata(0x12);
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writedata(0x14);
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writedata(0x17);
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writecommand(ST7789_NVGAMCTRL);
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writedata(0xd0);
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writedata(0x00);
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writedata(0x02);
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writedata(0x07);
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writedata(0x0a);
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writedata(0x28);
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writedata(0x31);
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writedata(0x54);
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writedata(0x47);
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writedata(0x0e);
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writedata(0x1c);
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writedata(0x17);
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writedata(0x1b);
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writedata(0x1e);
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writecommand(ST7789_INVON);
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writecommand(ST7789_CASET); // Column address set
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writedata(0x00);
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writedata(0x00);
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writedata(0x00);
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writedata(0xEF); // 239
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writecommand(ST7789_RASET); // Row address set
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writedata(0x00);
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writedata(0x00);
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writedata(0x01);
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writedata(0x3F); // 319
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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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(ST7789_DISPON); //Display on
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delay(120);
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#ifdef TFT_BL
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// Turn on the back-light LED
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digitalWrite(TFT_BL, HIGH);
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pinMode(TFT_BL, OUTPUT);
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#endif
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}
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