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Драйвер экрана

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This commit is contained in:
Tutukov Beslan
2021-11-12 05:46:14 +03:00
parent 8becbaf003
commit df472bfeec
6 changed files with 460 additions and 3 deletions
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2
STM32F746xG.ld
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@@ -214,7 +214,7 @@ SECTIONS
{ {
*(.stack*) *(.stack*)
} > RAM } > RAM
ExtFlashSection : ExtFlashSection :
{ {
*(ExtFlashSection ExtFlashSection.*) *(ExtFlashSection ExtFlashSection.*)

4
flash_data.h
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@@ -48,8 +48,8 @@
#define ADDR_FLASH_SECTOR_3 ((uint32_t)0x08018000) /* Base @ of Sector 3, 32 Kbytes */ #define ADDR_FLASH_SECTOR_3 ((uint32_t)0x08018000) /* Base @ of Sector 3, 32 Kbytes */
#define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08020000) /* Base @ of Sector 4, 128 Kbytes */ #define ADDR_FLASH_SECTOR_4 ((uint32_t)0x08020000) /* Base @ of Sector 4, 128 Kbytes */
#define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08040000) /* Base @ of Sector 5, 256 Kbytes */ #define ADDR_FLASH_SECTOR_5 ((uint32_t)0x08040000) /* Base @ of Sector 5, 256 Kbytes */
#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbytes */ //#define ADDR_FLASH_SECTOR_6 ((uint32_t)0x08080000) /* Base @ of Sector 6, 256 Kbytes */
#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbytes */ //#define ADDR_FLASH_SECTOR_7 ((uint32_t)0x080C0000) /* Base @ of Sector 7, 256 Kbytes */
#endif #endif
#endif #endif

205
ili9341.cpp Normal file
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@@ -0,0 +1,205 @@
#include "ili9341.h"
#include "stm32f7xx_ll_spi.h"
ILI9341::ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RST)
: dispPort(MOSI, MISO, SCK)
, rst(RST)
, dc(DC)
{
// dispPort = new SPI(MOSI, MISO, SCK);
dispPort.frequency(27000000);
dispPort.format(8, 3);
SPIx = spi_get_peripheral_name(MOSI, MISO, SCK);
rst = 1;
osDelay(10);
rst = 0;
osDelay(10);
rst = 1;
osDelay(10);
LCD_WR_REG(0x01); //software reset
osDelay(50);
LCD_WR_REG(0x28);
// display off
//---------------------------------------------------------
// magic?
LCD_WR_REG(0xcf);
LCD_WR_Data(0x00);
LCD_WR_Data(0x83);
LCD_WR_Data(0x30);
LCD_WR_REG(0xed);
LCD_WR_Data(0x64);
LCD_WR_Data(0x03);
LCD_WR_Data(0x12);
LCD_WR_Data(0x81);
LCD_WR_REG(0xe8);
LCD_WR_Data(0x85);
LCD_WR_Data(0x01);
LCD_WR_Data(0x79);
LCD_WR_REG(0xcb);
LCD_WR_Data(0x39);
LCD_WR_Data(0x2c);
LCD_WR_Data(0x00);
LCD_WR_Data(0x34);
LCD_WR_Data(0x02);
LCD_WR_REG(0xf7);
LCD_WR_Data(0x20);
LCD_WR_REG(0xea);
LCD_WR_Data(0x00);
LCD_WR_Data(0x00);
//------------power control------------------------------
LCD_WR_REG(0xc0); //power control
LCD_WR_Data(0x26);
LCD_WR_REG(0xc1); //power control
LCD_WR_Data(0x11);
//--------------VCOM
LCD_WR_REG(0xc5); //vcom control
LCD_WR_Data(0x35); //35
LCD_WR_Data(0x3e); //3E
LCD_WR_REG(0xc7); //vcom control
LCD_WR_Data(0xbe); // 0x94
//------------memory access control------------------------
LCD_WR_REG(0x36);
// memory access control
LCD_WR_Data(0xE8); //Поворот экрана на 0 градусов
// LCD_WR_Data(0x28); //Поворот экрана на 180 градусов
LCD_WR_REG(0x3a); // pixel format set
LCD_WR_Data(0x55); //16bit /pixel
//----------------- frame rate------------------------------
LCD_WR_REG(0xb1);
// frame rate
LCD_WR_Data(0x00);
LCD_WR_Data(0x1B); //70
//----------------Gamma---------------------------------
LCD_WR_REG(0xf2); // 3Gamma Function Disable
LCD_WR_Data(0x08);
LCD_WR_REG(0x26);
LCD_WR_Data(0x01); // gamma set 4 gamma curve 01/02/04/08
LCD_WR_REG(0xE0); //positive gamma correction
LCD_WR_Data(0x1f);
LCD_WR_Data(0x1a);
LCD_WR_Data(0x18);
LCD_WR_Data(0x0a);
LCD_WR_Data(0x0f);
LCD_WR_Data(0x06);
LCD_WR_Data(0x45);
LCD_WR_Data(0x87);
LCD_WR_Data(0x32);
LCD_WR_Data(0x0a);
LCD_WR_Data(0x07);
LCD_WR_Data(0x02);
LCD_WR_Data(0x07);
LCD_WR_Data(0x05);
LCD_WR_Data(0x00);
LCD_WR_REG(0xE1); //negamma correction
LCD_WR_Data(0x00);
LCD_WR_Data(0x25);
LCD_WR_Data(0x27);
LCD_WR_Data(0x05);
LCD_WR_Data(0x10);
LCD_WR_Data(0x09);
LCD_WR_Data(0x3a);
LCD_WR_Data(0x78);
LCD_WR_Data(0x4d);
LCD_WR_Data(0x05);
LCD_WR_Data(0x18);
LCD_WR_Data(0x0d);
LCD_WR_Data(0x38);
LCD_WR_Data(0x3a);
LCD_WR_Data(0x1f);
//--------------ddram ---------------------
LCD_WR_REG(0x2a);
// column set
// size = 239
LCD_WR_Data(0x00);
LCD_WR_Data(0x00);
LCD_WR_Data(0x00);
LCD_WR_Data(0xEF);
LCD_WR_REG(0x2b);
// page address set
// size = 319
LCD_WR_Data(0x00);
LCD_WR_Data(0x00);
LCD_WR_Data(0x01);
LCD_WR_Data(0x3F);
// LCD_WR_REG(0x34);
//LCD_WR_REG(0x35);
// tearing effect off
// tearing effect on
// LCD_WR_REG(0xb4); // display inversion
// LCD_WR_Data(0x00);
LCD_WR_REG(0xb7); //entry mode set
LCD_WR_Data(0x07);
//-----------------display---------------------
LCD_WR_REG(0xb6);
// display function control
LCD_WR_Data(0x0a);
LCD_WR_Data(0x82);
LCD_WR_Data(0x27);
LCD_WR_Data(0x00);
LCD_WR_REG(0x11); //sleep out
osDelay(100);
LCD_WR_REG(0x29); // display on
}
void ILI9341::LCD_WR_Data(uint8_t Data)
{
dc = 1;
dispPort.write(Data);
}
void ILI9341::LCD_WR_REG(uint8_t Reg)
{
dc = 0;
dispPort.write(Reg);
}
void ILI9341::LCD_setaddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2) //set coordinate for print or other function
{
LCD_WR_REG(0x2A);
LCD_WR_Data(x1 >> 8);
LCD_WR_Data(x1);
LCD_WR_Data(x2 >> 8);
LCD_WR_Data(x2);
LCD_WR_REG(0x2B);
LCD_WR_Data(y1 >> 8);
LCD_WR_Data(y1);
LCD_WR_Data(y2 >> 8);
LCD_WR_Data(y2);
LCD_WR_REG(0x2C); //memory write
}
void ILI9341::transmitData(const uint8_t* pixels, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
uint32_t n_bytes = w * h;
// uint8_t lo = 0, hi = 0;
LCD_setaddress(x, y, x + w - 1, y + h - 1);
// while (LL_SPI_IsActiveFlag_BSY(SPI1)) {
// }
dc = 1;
// LL_SPI_SetDataWidth((SPI_TypeDef*)SPIx, LL_SPI_DATAWIDTH_16BIT);
dispPort.format(16, 3);
while (n_bytes) {
uint8_t lo = *pixels++;
uint8_t hi = *pixels++;
// dispPort->write(hi << 8 | lo);
// dispPort->write(lo);
while (!LL_SPI_IsActiveFlag_TXE(SPI1)) {
}
LL_SPI_TransmitData16((SPI_TypeDef*)SPIx, hi << 8 | lo);
n_bytes--;
}
// LL_SPI_SetDataWidth((SPI_TypeDef*)SPIx, LL_SPI_DATAWIDTH_8BIT);
dispPort.format(8, 3);
}

22
ili9341.h Normal file
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@@ -0,0 +1,22 @@
#ifndef ILI9341_H
#define ILI9341_H
#include "mbed.h"
class ILI9341 {
public:
ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RST);
void transmitData(const uint8_t* pixels, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
private:
SPI dispPort;
SPIName SPIx;
void LCD_WR_Data(uint8_t Data);
void LCD_WR_REG(uint8_t Reg);
void LCD_setaddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
DigitalOut rst; //(PB_1);
DigitalOut dc; //(PB_0);
};
#endif // ILI9341_H

173
tsc2046.cpp Normal file
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@@ -0,0 +1,173 @@
#include "tsc2046.h"
#define CMD_X 0xD1
#define CMD_Y 0x91
#define CMD_ENABLE_IRQ 0x80
#define RESCALE_FACTOR 1000000
#define EE_MEM_ADDR 400
const constexpr auto dispWidth = 320;
const constexpr auto dispHeight = 240;
const constexpr auto xd1 = (50 * dispWidth) / 100;
const constexpr auto xd2 = (90 * dispWidth) / 100;
const constexpr auto xd3 = (10 * dispWidth) / 100;
const constexpr auto yd1 = (10 * dispHeight) / 100;
const constexpr auto yd2 = (50 * dispHeight) / 100;
const constexpr auto yd3 = (90 * dispHeight) / 100;
TSC2046::TSC2046(EEPROM* mem, PinName MOSI, PinName MISO, PinName SCK, PinName CS, PinName INT)
{
tpPort = new SPI(MOSI, MISO, SCK);
tpCS = new DigitalOut(CS);
tpInt = new DigitalIn(INT, PullUp);
eeprom = mem;
eeprom->read(EE_MEM_ADDR, (uint8_t*)&touchCoeff, sizeof(touchCoeff));
if (touchCoeff.touchIsCalibrated > 2)
touchCoeff.touchIsCalibrated = false;
readValue(CMD_ENABLE_IRQ); // Enable IRQ
}
void TSC2046::GetRawXY(uint16_t* X, uint16_t* Y)
{
readValue(CMD_X); // Dummy read - disable PenIRQ
*X = readValue(CMD_X); // Read X-Value
readValue(CMD_Y); // Dummy read - disable PenIRQ
*Y = readValue(CMD_Y); // Read Y-Value
readValue(CMD_ENABLE_IRQ); // Enable IRQ
}
void TSC2046::GetXY(int32_t* X, int32_t* Y)
{
uint16_t x, y;
if (DetectTouch()) {
GetRawXY(&x, &y);
*X = (touchCoeff.cali_A * x + touchCoeff.cali_B * y + touchCoeff.cali_C) / RESCALE_FACTOR;
*Y = (touchCoeff.cali_D * x + touchCoeff.cali_E * y + touchCoeff.cali_F) / RESCALE_FACTOR;
}
}
uint16_t TSC2046::readValue(uint16_t port)
{
static char txbuf[3] = { 0 };
static char rxbuf[3] = { 0 };
txbuf[0] = port;
tpCS->write(0);
tpPort->write(txbuf, 3, rxbuf, 3);
tpCS->write(1);
return ((uint16_t)rxbuf[1] << 5) | (rxbuf[2] >> 3);
}
bool TSC2046::DetectTouch()
{
return !tpInt->read();
}
void TSC2046::coeffCalc()
{
double temp1, temp2;
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;
//A
temp1 = ((double)xd1 * ((double)yt2 - (double)yt3)) + ((double)xd2 * ((double)yt3 - (double)yt1)) + ((double)xd3 * ((double)yt1 - (double)yt2));
temp2 = ((double)xt1 * ((double)yt2 - (double)yt3)) + ((double)xt2 * ((double)yt3 - (double)yt1)) + ((double)xt3 * ((double)yt1 - (double)yt2));
cal_A = temp1 / temp2;
touchCoeff.cali_A = (int32_t)((double)cal_A * RESCALE_FACTOR);
//B
temp1 = (cal_A * ((double)xt3 - (double)xt2)) + (double)xd2 - (double)xd3;
temp2 = (double)yt2 - (double)yt3;
cal_B = temp1 / temp2;
touchCoeff.cali_B = (int32_t)((double)cal_B * RESCALE_FACTOR);
//C
cal_C = (double)xd3 - (cal_A * (double)xt3) - (cal_B * (double)yt3);
touchCoeff.cali_C = (int32_t)(cal_C * RESCALE_FACTOR);
//D
temp1 = ((double)yd1 * ((double)yt2 - (double)yt3)) + ((double)yd2 * ((double)yt3 - (double)yt1)) + ((double)yd3 * ((double)yt1 - (double)yt2));
temp2 = ((double)xt1 * ((double)yt2 - (double)yt3)) + ((double)xt2 * ((double)yt3 - (double)yt1)) + ((double)xt3 * ((double)yt1 - (double)yt2));
cal_D = (double)temp1 / (double)temp2;
touchCoeff.cali_D = (int32_t)(cal_D * RESCALE_FACTOR);
//E
temp1 = (cal_D * ((double)xt3 - (double)xt2)) + (double)yd2 - (double)yd3;
temp2 = (double)yt2 - (double)yt3;
cal_E = (double)temp1 / (double)temp2;
touchCoeff.cali_E = (int32_t)(cal_E * RESCALE_FACTOR);
//F
cal_F = (double)yd3 - cal_D * (double)xt3 - cal_E * (double)yt3;
touchCoeff.cali_F = (int32_t)(cal_F * RESCALE_FACTOR);
}
uint16_t TSC2046::getXd1(void)
{
return xd1;
}
uint16_t TSC2046::getXd2(void)
{
return xd2;
}
uint16_t TSC2046::getXd3(void)
{
return xd3;
}
uint16_t TSC2046::getYd1(void)
{
return yd1;
}
uint16_t TSC2046::getYd2(void)
{
return yd2;
}
uint16_t TSC2046::getYd3(void)
{
return yd3;
}
void TSC2046::setXt1(uint32_t xt1)
{
this->xt1 = xt1;
}
void TSC2046::setXt2(uint32_t xt2)
{
this->xt2 = xt2;
}
void TSC2046::setXt3(uint32_t xt3)
{
this->xt3 = xt3;
}
void TSC2046::setYt1(uint32_t yt1)
{
this->yt1 = yt1;
}
void TSC2046::setYt2(uint32_t yt2)
{
this->yt2 = yt2;
}
void TSC2046::setYt3(uint32_t yt3)
{
this->yt3 = yt3;
}
bool TSC2046::getCalibrated()
{
return touchCoeff.touchIsCalibrated;
}
void TSC2046::setCalibrated()
{
touchCoeff.touchIsCalibrated = true;
eeprom->write(EE_MEM_ADDR, (uint8_t*)&touchCoeff, sizeof(touchCoeff));
}

57
tsc2046.h Normal file
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@@ -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);
};