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Beslan
2022-01-24 10:12:53 +03:00
parent e659ae7cec
commit 1dad73405d
2 changed files with 14 additions and 23 deletions
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31
ili9341.cpp
View File

@@ -3,10 +3,7 @@
#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(MOSI, MISO, SCK), rst(RST), dc(DC) {
// dispPort = new SPI(MOSI, MISO, SCK);
dispPort.frequency(27000000);
dispPort.format(8, 3);
@@ -69,6 +66,7 @@ ILI9341::ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RS
// 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
@@ -147,19 +145,18 @@ ILI9341::ILI9341(PinName MOSI, PinName MISO, PinName SCK, PinName DC, PinName RS
LCD_WR_REG(0x29); // display on
}
void ILI9341::LCD_WR_Data(uint8_t Data)
{
void ILI9341::LCD_WR_Data(uint8_t Data) {
dc = 1;
dispPort.write(Data);
}
void ILI9341::LCD_WR_REG(uint8_t Reg)
{
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
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);
@@ -176,30 +173,20 @@ void ILI9341::LCD_setaddress(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t 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)
{
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)) {
// }
LCD_setaddress(x, y, x + w - 1U, y + h - 1U);
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);
LL_SPI_TransmitData16(reinterpret_cast<SPI_TypeDef *>(SPIx), hi << 8 | lo);
n_bytes--;
}
// LL_SPI_SetDataWidth((SPI_TypeDef*)SPIx, LL_SPI_DATAWIDTH_8BIT);
dispPort.format(8, 3);
}

6
ili9341.h
View File

@@ -6,13 +6,17 @@
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);
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);