STM32f103——ILI9341

STM32f103 —— ILI9341

#ifndef ILI9341_H_#define ILI9341_H_#include "type.h"//====================================TFT ILI9341=====================================#define ILI9341_SPI          SPI1#define ILI9341_MOSI_GRP     GPIOA#define ILI9341_MOSI_IDX     GPIO_Pin_7#define ILI9341_MOSI_LOW()   GPIO_ResetBits(ILI9341_MOSI_GRP, ILI9341_MOSI_IDX)#define ILI9341_MOSI_HIGH()  GPIO_SetBits(ILI9341_MOSI_GRP, ILI9341_MOSI_IDX)#define ILI9341_RS_GRP       GPIOA#define ILI9341_RS_IDX       GPIO_Pin_3#define ILI9341_RS_LOW()     GPIO_ResetBits(ILI9341_RS_GRP, ILI9341_RS_IDX)#define ILI9341_RS_HIGH()    GPIO_SetBits(ILI9341_RS_GRP, ILI9341_RS_IDX)#define ILI9341_CS_GRP       GPIOA#define ILI9341_CS_IDX       GPIO_Pin_4#define ILI9341_CS_LOW()     GPIO_ResetBits(ILI9341_CS_GRP, ILI9341_CS_IDX)#define ILI9341_CS_HIGH()    GPIO_SetBits(ILI9341_CS_GRP, ILI9341_CS_IDX)#define ILI9341_CLK_GRP      GPIOA#define ILI9341_CLK_IDX      GPIO_Pin_5#define ILI9341_CLK_LOW()    GPIO_ResetBits(ILI9341_CLK_GRP, ILI9341_CS_IDX)#define ILI9341_CLK_HIGH()   GPIO_SetBits(ILI9341_CLK_IDX, ILI9341_CS_IDX)#define ILI9341_ENLED_GRP    GPIOB#define ILI9341_ENLED_IDX    GPIO_Pin_2#define ILI9341_ENLED_LOW()  GPIO_ResetBits(ILI9341_ENLED_GRP, ILI9341_ENLED_IDX)#define ILI9341_ENLED_HIGH() GPIO_SetBits(ILI9341_ENLED_GRP, ILI9341_ENLED_IDX)#define ILI9341_RESET_GRP    GPIOB#define ILI9341_RESET_IDX    GPIO_Pin_0#define ILI9341_RESET_LOW()  GPIO_ResetBits(ILI9341_RESET_GRP, ILI9341_RESET_IDX)#define ILI9341_RESET_HIGH() GPIO_SetBits(ILI9341_RESET_GRP, ILI9341_RESET_IDX)void ILI9341Config(void);void ILI9341SetCursor(uint16_t x, uint16_t y);void ILI9341SetColor(uint16_t rgb565);void ILI9341WriteData(uint8_t high,uint8_t low);

#include "ili9341.h"#include "delay.h"/* ILI9341液晶的SPI GPIO初始化 */static void ili9341_spi_init(SPI_TypeDef* SPIx, uint16_t spi_baud_div){  SPI_InitTypeDef SPI_InitStructure;  GPIO_InitTypeDef GPIO_InitStructure;  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);  /* clk和mosi是复用功能，其它引脚是通用推挽输出 */  GPIO_InitStructure.GPIO_Pin  = ILI9341_MOSI_IDX | ILI9341_CLK_IDX;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  GPIO_Init(ILI9341_MOSI_GRP, &GPIO_InitStructure);  GPIO_InitStructure.GPIO_Pin  = ILI9341_CS_IDX | ILI9341_RS_IDX;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_Init(ILI9341_CS_GRP, &GPIO_InitStructure);  GPIO_InitStructure.GPIO_Pin  = ILI9341_ENLED_IDX | ILI9341_RESET_IDX;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_Init(ILI9341_RESET_GRP, &GPIO_InitStructure);  SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;  SPI_InitStructure.SPI_Mode = SPI_Mode_Master;  SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;  SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;  SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;  SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;  SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;  SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;  SPI_InitStructure.SPI_CRCPolynomial = 7;  SPI_Init(SPIx, &SPI_InitStructure);  SPI_Cmd(SPIx, ENABLE);}static void ili9341_spi_config(void){  ili9341_spi_init(ILI9341_SPI, 0x02);  ILI9341_ENLED_HIGH(); /* 点亮LCD */  ILI9341_CS_HIGH();    /* 关闭失能cs */  ILI9341_RESET_HIGH(); /* 复位引脚制高失能 */  ILI9341_RS_HIGH();    /* RS制高 */}/* spi读写数据 */static uint8_t ili9341_read_write_byte(uint8_t data){  while (SPI_I2S_GetFlagStatus(ILI9341_SPI, SPI_I2S_FLAG_TXE) == RESET);  SPI_I2S_SendData(ILI9341_SPI, data);   while (SPI_I2S_GetFlagStatus(ILI9341_SPI, SPI_I2S_FLAG_RXNE) == RESET);  return SPI_I2S_ReceiveData(ILI9341_SPI); //返回通过SPIx最近接收的数据}/* 写命令 */static void ili9341_cmd_write(uint8_t cmd){  ILI9341_RS_LOW();  ILI9341_CS_LOW();  ili9341_read_write_byte(cmd);  ILI9341_CS_HIGH();}/* 写数据 */static void ili9341_data_write(uint8_t data){  ILI9341_RS_HIGH();  ILI9341_CS_LOW();  ili9341_read_write_byte(data);  ILI9341_CS_HIGH();}/* 写16位数据 */void ili9341_data_wtite_16(uint8_t high, uint8_t low){  ILI9341_RS_HIGH();  ILI9341_CS_LOW();  ili9341_read_write_byte(high);  ILI9341_CS_HIGH();  ILI9341_RS_HIGH();  ILI9341_CS_LOW();  ili9341_read_write_byte(low);  ILI9341_CS_HIGH();}/* 初始化9341液晶，根据手册时序 */static void ili9341_init(void){  ILI9341_RESET_LOW();  delay_ms(10);  ILI9341_RESET_HIGH();  delay_ms(120);  //************* Start Initial Sequence **********//  ili9341_cmd_write(0xCB);  ili9341_data_write (0x39);  ili9341_data_write (0x2C);  ili9341_data_write (0x00);  ili9341_data_write (0x34);  ili9341_data_write (0x02);  ili9341_cmd_write(0xCF);  ili9341_data_write (0x00);  ili9341_data_write (0xC1);  ili9341_data_write (0X30);  ili9341_cmd_write(0xE8);  ili9341_data_write (0x85);  ili9341_data_write (0x00);  ili9341_data_write (0x78);  ili9341_cmd_write(0xEA);  ili9341_data_write (0x00);  ili9341_data_write (0x00);  ili9341_cmd_write(0xED);  ili9341_data_write (0x64);  ili9341_data_write (0x03);  ili9341_data_write (0X12);  ili9341_data_write (0X81);  ili9341_cmd_write(0xF7);  ili9341_data_write(0x20);  ili9341_cmd_write(0xC0);    // Power control  ili9341_data_write (0x23);  // VRH[5:0]  ili9341_cmd_write(0xC1);    // Power control  ili9341_data_write (0x10);  // SAP[2:0];BT[3:0]  ili9341_cmd_write(0xC5);    // VCM control  ili9341_data_write (0x3e);  ili9341_data_write (0x28);  ili9341_cmd_write(0xC7);    // VCM control2  ili9341_data_write (0X86);  ili9341_cmd_write(0x36);    // Memory Access Control  ili9341_data_write (0xe8);  ili9341_cmd_write(0X2A);  ili9341_data_write(0x00);   // start  ili9341_data_write(0x00);  ili9341_data_write(0x01);   // end  ili9341_data_write(0x3F);  ili9341_cmd_write(0X2B);  ili9341_data_write(0x00);   // start  ili9341_data_write(0x00);  ili9341_data_write(0x00);   // end  ili9341_data_write(0xEF);  ili9341_cmd_write(0x3A);  ili9341_data_write (0x55);  ili9341_cmd_write(0xB1);  ili9341_data_write (0x00);  ili9341_data_write (0x18);  ili9341_cmd_write(0xB6);    // Display Function Control  ili9341_data_write (0x08);  ili9341_data_write (0x82);  ili9341_data_write (0x27);  ili9341_cmd_write(0xF2);    // 3Gamma Function Disable  ili9341_data_write (0x00);  ili9341_cmd_write(0x26);    // Gamma curve selected  ili9341_data_write (0x01);  ili9341_cmd_write(0xE0);    // Set Gamma  ili9341_data_write (0x0F);  ili9341_data_write (0x31);  ili9341_data_write (0x2b);  ili9341_data_write (0x0c);  ili9341_data_write (0x0e);  ili9341_data_write (0x08);  ili9341_data_write (0x4e);  ili9341_data_write (0Xf1);  ili9341_data_write (0x37);  ili9341_data_write (0x07);  ili9341_data_write (0x10);  ili9341_data_write (0x03);  ili9341_data_write (0x0e);  ili9341_data_write (0x09);  ili9341_data_write (0x00);  ili9341_cmd_write(0XE1);    // Set Gamma  ili9341_data_write (0x00);  ili9341_data_write (0x0e);  ili9341_data_write (0x14);  ili9341_data_write (0x03);  ili9341_data_write (0x11);  ili9341_data_write (0x07);  ili9341_data_write (0x31);  ili9341_data_write (0xc1);  ili9341_data_write (0x48);  ili9341_data_write (0x08);  ili9341_data_write (0x0f);  ili9341_data_write (0x0C);  ili9341_data_write (0x31);  ili9341_data_write (0x36);  ili9341_data_write (0x0f);  ili9341_cmd_write(0x11);    // Exit Sleep  delay_ms(120);  ili9341_cmd_write(0x29);    // Display on  ili9341_cmd_write(0x2c);}//=================================================================/* ILI9341配置:GPIO配置，液晶初始化 */void ILI9341Config(void){  ili9341_spi_config(); /* 配置ILI9341GPIO和点亮屏 */  ili9341_init();       /* ILI9341液晶初始化 */}void ILI9341SetColor(uint16_t rgb565){  uint8_t H;  uint8_t L;  H = (rgb565 & 0xFF00) >> 8;  L = (rgb565 & 0x00FF);  WatchdogFeed();  ili9341_data_wtite_16(H, L);}void ILI9341SetCursor(uint16_t x, uint16_t y){  ili9341_cmd_write(0x2a);  ili9341_data_wtite_16(x >> 8, x);  ili9341_cmd_write(0x2b);  ili9341_data_wtite_16(y >> 8, y);  ili9341_cmd_write(0x2c);}void ILI9341WriteData(uint8_t high, uint8_t low){  ili9341_data_wtite_16(high, low);}

struct grap_char{  uint16_t x1; /*字的起始位置的X轴*/  uint16_t y1; /*字的起始位置的Y轴*/  uint8_t code[2]; /*要显示的内容*/  uint16_t rgb565; /*显示的前景色*/  uint16_t blkrgb565; /*显示的背景色*/}; // 描点int grap_xy(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t blkrgb565) // 刷屏{  int16_t i;  int16_t j;  if (y2 > MAX_POSY ||      x2 > MAX_POSX ||      x1 > MAX_POSX ||      y1 > MAX_POSY ||      x1 >= x2 ||      y1 > y2)  {    return 0;  }  for (j = y1; j < y2; j++)  {    ILI9341SetCursor(x1, j);    for (i = x1; i < x2; i++)    {      ILI9341SetColor(blkrgb565);    }  }  return 1;}