Драйвер экрана
This commit is contained in:
Tutukov Beslan
@@ -48,8 +48,8 @@
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#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x08018000) /* Base @ of Sector 3, 32 Kbytes */
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#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08020000) /* Base @ of Sector 4, 128 Kbytes */
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#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08040000) /* Base @ of Sector 5, 256 Kbytes */
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#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbytes */
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#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbytes */
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//#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbytes */
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//#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbytes */
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#endif
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#endif
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205
ili9341.cpp
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205
ili9341.cpp
Normal file
@@ -0,0 +1,205 @@
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#include "ili9341.h"
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#include "stm32f7xx_ll_spi.h"
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ILI9341::ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RST)
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: dispPort(MOSI, MISO, SCK)
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, rst(RST)
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, dc(DC)
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{
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// dispPort = new SPI(MOSI, MISO, SCK);
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dispPort.frequency(27000000);
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dispPort.format(8, 3);
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SPIx = spi_get_peripheral_name(MOSI, MISO, SCK);
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rst = 1;
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osDelay(10);
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rst = 0;
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osDelay(10);
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rst = 1;
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osDelay(10);
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LCD_WR_REG(0x01); //software reset
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osDelay(50);
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LCD_WR_REG(0x28);
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// display off
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//---------------------------------------------------------
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// magic?
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LCD_WR_REG(0xcf);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x83);
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LCD_WR_Data(0x30);
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LCD_WR_REG(0xed);
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LCD_WR_Data(0x64);
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LCD_WR_Data(0x03);
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LCD_WR_Data(0x12);
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LCD_WR_Data(0x81);
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LCD_WR_REG(0xe8);
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LCD_WR_Data(0x85);
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LCD_WR_Data(0x01);
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LCD_WR_Data(0x79);
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LCD_WR_REG(0xcb);
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LCD_WR_Data(0x39);
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LCD_WR_Data(0x2c);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x34);
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LCD_WR_Data(0x02);
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LCD_WR_REG(0xf7);
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LCD_WR_Data(0x20);
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LCD_WR_REG(0xea);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x00);
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//------------power control------------------------------
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LCD_WR_REG(0xc0); //power control
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LCD_WR_Data(0x26);
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LCD_WR_REG(0xc1); //power control
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LCD_WR_Data(0x11);
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//--------------VCOM
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LCD_WR_REG(0xc5); //vcom control
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LCD_WR_Data(0x35); //35
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LCD_WR_Data(0x3e); //3E
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LCD_WR_REG(0xc7); //vcom control
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LCD_WR_Data(0xbe); // 0x94
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//------------memory access control------------------------
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LCD_WR_REG(0x36);
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// memory access control
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LCD_WR_Data(0xE8); //Поворот экрана на 0 градусов
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// LCD_WR_Data(0x28); //Поворот экрана на 180 градусов
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LCD_WR_REG(0x3a); // pixel format set
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LCD_WR_Data(0x55); //16bit /pixel
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//----------------- frame rate------------------------------
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LCD_WR_REG(0xb1);
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// frame rate
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x1B); //70
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//----------------Gamma---------------------------------
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LCD_WR_REG(0xf2); // 3Gamma Function Disable
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LCD_WR_Data(0x08);
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LCD_WR_REG(0x26);
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LCD_WR_Data(0x01); // gamma set 4 gamma curve 01/02/04/08
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LCD_WR_REG(0xE0); //positive gamma correction
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LCD_WR_Data(0x1f);
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LCD_WR_Data(0x1a);
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LCD_WR_Data(0x18);
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LCD_WR_Data(0x0a);
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LCD_WR_Data(0x0f);
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LCD_WR_Data(0x06);
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LCD_WR_Data(0x45);
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LCD_WR_Data(0x87);
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LCD_WR_Data(0x32);
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LCD_WR_Data(0x0a);
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LCD_WR_Data(0x07);
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LCD_WR_Data(0x02);
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LCD_WR_Data(0x07);
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LCD_WR_Data(0x05);
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LCD_WR_Data(0x00);
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LCD_WR_REG(0xE1); //negamma correction
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x25);
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LCD_WR_Data(0x27);
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LCD_WR_Data(0x05);
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LCD_WR_Data(0x10);
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LCD_WR_Data(0x09);
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LCD_WR_Data(0x3a);
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LCD_WR_Data(0x78);
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LCD_WR_Data(0x4d);
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LCD_WR_Data(0x05);
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LCD_WR_Data(0x18);
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LCD_WR_Data(0x0d);
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LCD_WR_Data(0x38);
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LCD_WR_Data(0x3a);
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LCD_WR_Data(0x1f);
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//--------------ddram ---------------------
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LCD_WR_REG(0x2a);
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// column set
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// size = 239
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0xEF);
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LCD_WR_REG(0x2b);
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// page address set
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// size = 319
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x00);
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LCD_WR_Data(0x01);
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LCD_WR_Data(0x3F);
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// LCD_WR_REG(0x34);
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//LCD_WR_REG(0x35);
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// tearing effect off
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// tearing effect on
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// LCD_WR_REG(0xb4); // display inversion
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// LCD_WR_Data(0x00);
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LCD_WR_REG(0xb7); //entry mode set
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LCD_WR_Data(0x07);
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//-----------------display---------------------
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LCD_WR_REG(0xb6);
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// display function control
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LCD_WR_Data(0x0a);
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LCD_WR_Data(0x82);
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LCD_WR_Data(0x27);
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LCD_WR_Data(0x00);
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LCD_WR_REG(0x11); //sleep out
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osDelay(100);
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LCD_WR_REG(0x29); // display on
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}
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void ILI9341::LCD_WR_Data(uint8_t Data)
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{
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dc = 1;
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dispPort.write(Data);
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}
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void ILI9341::LCD_WR_REG(uint8_t Reg)
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{
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dc = 0;
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dispPort.write(Reg);
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}
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void ILI9341::LCD_setaddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) //set coordinate for print or other function
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{
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LCD_WR_REG(0x2A);
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LCD_WR_Data(x1 >> 8);
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LCD_WR_Data(x1);
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LCD_WR_Data(x2 >> 8);
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LCD_WR_Data(x2);
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LCD_WR_REG(0x2B);
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LCD_WR_Data(y1 >> 8);
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LCD_WR_Data(y1);
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LCD_WR_Data(y2 >> 8);
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LCD_WR_Data(y2);
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LCD_WR_REG(0x2C); //memory write
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}
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void ILI9341::transmitData(const uint8_t* pixels, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
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{
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uint32_t n_bytes = w * h;
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// uint8_t lo = 0, hi = 0;
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LCD_setaddress(x, y, x + w - 1, y + h - 1);
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// while (LL_SPI_IsActiveFlag_BSY(SPI1)) {
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// }
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dc = 1;
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// LL_SPI_SetDataWidth((SPI_TypeDef*)SPIx, LL_SPI_DATAWIDTH_16BIT);
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dispPort.format(16, 3);
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while (n_bytes) {
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uint8_t lo = *pixels++;
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uint8_t hi = *pixels++;
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// dispPort->write(hi << 8 | lo);
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// dispPort->write(lo);
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while (!LL_SPI_IsActiveFlag_TXE(SPI1)) {
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}
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LL_SPI_TransmitData16((SPI_TypeDef*)SPIx, hi << 8 | lo);
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n_bytes--;
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}
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// LL_SPI_SetDataWidth((SPI_TypeDef*)SPIx, LL_SPI_DATAWIDTH_8BIT);
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dispPort.format(8, 3);
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}
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22
ili9341.h
Normal file
22
ili9341.h
Normal file
@@ -0,0 +1,22 @@
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#ifndef ILI9341_H
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#define ILI9341_H
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#include "mbed.h"
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class ILI9341 {
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public:
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ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RST);
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void transmitData(const uint8_t* pixels, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
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private:
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SPI dispPort;
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SPIName SPIx;
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void LCD_WR_Data(uint8_t Data);
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void LCD_WR_REG(uint8_t Reg);
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void LCD_setaddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
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DigitalOut rst; //(PB_1);
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DigitalOut dc; //(PB_0);
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};
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#endif // ILI9341_H
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173
tsc2046.cpp
Normal file
173
tsc2046.cpp
Normal file
@@ -0,0 +1,173 @@
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#include "tsc2046.h"
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#define CMD_X 0xD1
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#define CMD_Y 0x91
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#define CMD_ENABLE_IRQ 0x80
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#define RESCALE_FACTOR 1000000
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#define EE_MEM_ADDR 400
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const constexpr auto dispWidth = 320;
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const constexpr auto dispHeight = 240;
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const constexpr auto xd1 = (50 * dispWidth) / 100;
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const constexpr auto xd2 = (90 * dispWidth) / 100;
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const constexpr auto xd3 = (10 * dispWidth) / 100;
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const constexpr auto yd1 = (10 * dispHeight) / 100;
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const constexpr auto yd2 = (50 * dispHeight) / 100;
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const constexpr auto yd3 = (90 * dispHeight) / 100;
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TSC2046::TSC2046(EEPROM* mem, PinName MOSI, PinName MISO, PinName SCK, PinName CS, PinName INT)
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{
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tpPort = new SPI(MOSI, MISO, SCK);
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tpCS = new DigitalOut(CS);
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tpInt = new DigitalIn(INT, PullUp);
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eeprom = mem;
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eeprom->read(EE_MEM_ADDR, (uint8_t*)&touchCoeff, sizeof(touchCoeff));
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if (touchCoeff.touchIsCalibrated > 2)
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touchCoeff.touchIsCalibrated = false;
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readValue(CMD_ENABLE_IRQ); // Enable IRQ
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}
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void TSC2046::GetRawXY(uint16_t* X, uint16_t* Y)
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{
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readValue(CMD_X); // Dummy read - disable PenIRQ
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*X = readValue(CMD_X); // Read X-Value
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readValue(CMD_Y); // Dummy read - disable PenIRQ
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*Y = readValue(CMD_Y); // Read Y-Value
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readValue(CMD_ENABLE_IRQ); // Enable IRQ
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}
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void TSC2046::GetXY(int32_t* X, int32_t* Y)
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{
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uint16_t x, y;
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if (DetectTouch()) {
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GetRawXY(&x, &y);
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*X = (touchCoeff.cali_A * x + touchCoeff.cali_B * y + touchCoeff.cali_C) / RESCALE_FACTOR;
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*Y = (touchCoeff.cali_D * x + touchCoeff.cali_E * y + touchCoeff.cali_F) / RESCALE_FACTOR;
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}
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}
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uint16_t TSC2046::readValue(uint16_t port)
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{
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static char txbuf[3] = { 0 };
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static char rxbuf[3] = { 0 };
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txbuf[0] = port;
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tpCS->write(0);
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tpPort->write(txbuf, 3, rxbuf, 3);
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tpCS->write(1);
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return ((uint16_t)rxbuf[1] << 5) | (rxbuf[2] >> 3);
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}
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bool TSC2046::DetectTouch()
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{
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return !tpInt->read();
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}
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void TSC2046::coeffCalc()
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{
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double temp1, temp2;
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double cal_A = 0.0, cal_B = 0.0, cal_C = 0.0, cal_D = 0.0, cal_E = 0.0, cal_F = 0.0;
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//A
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temp1 = ((double)xd1 * ((double)yt2 - (double)yt3)) + ((double)xd2 * ((double)yt3 - (double)yt1)) + ((double)xd3 * ((double)yt1 - (double)yt2));
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temp2 = ((double)xt1 * ((double)yt2 - (double)yt3)) + ((double)xt2 * ((double)yt3 - (double)yt1)) + ((double)xt3 * ((double)yt1 - (double)yt2));
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cal_A = temp1 / temp2;
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touchCoeff.cali_A = (int32_t)((double)cal_A * RESCALE_FACTOR);
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//B
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temp1 = (cal_A * ((double)xt3 - (double)xt2)) + (double)xd2 - (double)xd3;
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temp2 = (double)yt2 - (double)yt3;
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cal_B = temp1 / temp2;
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touchCoeff.cali_B = (int32_t)((double)cal_B * RESCALE_FACTOR);
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//C
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cal_C = (double)xd3 - (cal_A * (double)xt3) - (cal_B * (double)yt3);
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touchCoeff.cali_C = (int32_t)(cal_C * RESCALE_FACTOR);
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//D
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temp1 = ((double)yd1 * ((double)yt2 - (double)yt3)) + ((double)yd2 * ((double)yt3 - (double)yt1)) + ((double)yd3 * ((double)yt1 - (double)yt2));
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temp2 = ((double)xt1 * ((double)yt2 - (double)yt3)) + ((double)xt2 * ((double)yt3 - (double)yt1)) + ((double)xt3 * ((double)yt1 - (double)yt2));
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cal_D = (double)temp1 / (double)temp2;
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touchCoeff.cali_D = (int32_t)(cal_D * RESCALE_FACTOR);
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//E
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temp1 = (cal_D * ((double)xt3 - (double)xt2)) + (double)yd2 - (double)yd3;
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temp2 = (double)yt2 - (double)yt3;
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cal_E = (double)temp1 / (double)temp2;
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touchCoeff.cali_E = (int32_t)(cal_E * RESCALE_FACTOR);
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//F
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cal_F = (double)yd3 - cal_D * (double)xt3 - cal_E * (double)yt3;
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touchCoeff.cali_F = (int32_t)(cal_F * RESCALE_FACTOR);
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}
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uint16_t TSC2046::getXd1(void)
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{
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return xd1;
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}
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uint16_t TSC2046::getXd2(void)
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{
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return xd2;
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}
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uint16_t TSC2046::getXd3(void)
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{
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return xd3;
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}
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uint16_t TSC2046::getYd1(void)
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{
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return yd1;
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}
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uint16_t TSC2046::getYd2(void)
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{
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return yd2;
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}
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uint16_t TSC2046::getYd3(void)
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{
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return yd3;
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}
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void TSC2046::setXt1(uint32_t xt1)
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{
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this->xt1 = xt1;
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}
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void TSC2046::setXt2(uint32_t xt2)
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{
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this->xt2 = xt2;
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}
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void TSC2046::setXt3(uint32_t xt3)
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{
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this->xt3 = xt3;
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}
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void TSC2046::setYt1(uint32_t yt1)
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{
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this->yt1 = yt1;
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}
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void TSC2046::setYt2(uint32_t yt2)
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{
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this->yt2 = yt2;
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}
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void TSC2046::setYt3(uint32_t yt3)
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{
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this->yt3 = yt3;
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}
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bool TSC2046::getCalibrated()
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{
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return touchCoeff.touchIsCalibrated;
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}
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void TSC2046::setCalibrated()
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{
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touchCoeff.touchIsCalibrated = true;
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eeprom->write(EE_MEM_ADDR, (uint8_t*)&touchCoeff, sizeof(touchCoeff));
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}
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||||
57
tsc2046.h
Normal file
57
tsc2046.h
Normal file
@@ -0,0 +1,57 @@
|
||||
#include "eeprom.h"
|
||||
#include "mbed.h"
|
||||
|
||||
class TSC2046 {
|
||||
public:
|
||||
TSC2046(EEPROM* mem, PinName MOSI, PinName MISO, PinName SCK, PinName CS, PinName INT);
|
||||
|
||||
void GetXY(int32_t* X, int32_t* Y);
|
||||
|
||||
uint16_t getXd1(void);
|
||||
uint16_t getXd2(void);
|
||||
uint16_t getXd3(void);
|
||||
uint16_t getYd1(void);
|
||||
uint16_t getYd2(void);
|
||||
uint16_t getYd3(void);
|
||||
|
||||
void setXt1(uint32_t xt1);
|
||||
void setXt2(uint32_t xt2);
|
||||
void setXt3(uint32_t xt3);
|
||||
void setYt1(uint32_t yt1);
|
||||
void setYt2(uint32_t yt2);
|
||||
void setYt3(uint32_t yt3);
|
||||
void setCalibrated();
|
||||
bool getCalibrated();
|
||||
|
||||
bool DetectTouch();
|
||||
|
||||
void coeffCalc();
|
||||
|
||||
void GetRawXY(uint16_t* X, uint16_t* Y);
|
||||
|
||||
private:
|
||||
struct
|
||||
{
|
||||
volatile int32_t cali_A;
|
||||
volatile int32_t cali_B;
|
||||
volatile int32_t cali_C;
|
||||
volatile int32_t cali_D;
|
||||
volatile int32_t cali_E;
|
||||
volatile int32_t cali_F;
|
||||
volatile uint8_t touchIsCalibrated;
|
||||
uint8_t tmp;
|
||||
} touchCoeff;
|
||||
|
||||
uint32_t xt1;
|
||||
uint32_t xt2;
|
||||
uint32_t xt3;
|
||||
uint32_t yt1;
|
||||
uint32_t yt2;
|
||||
uint32_t yt3;
|
||||
|
||||
SPI* tpPort;
|
||||
DigitalOut* tpCS;
|
||||
DigitalIn* tpInt;
|
||||
EEPROM* eeprom;
|
||||
uint16_t readValue(uint16_t port);
|
||||
};
|
||||
Reference in New Issue
Block a user