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#include "tft9341.h" // Device header
//管理LCD重要參數
//默認為豎屏
_lcd_dev lcddev;
//畫筆顏色,背景顏色
u16 POINT_COLOR = 0x0000,BACK_COLOR = 0xFFFF;
u16 DeviceCode;
void SPIv_WriteData(u8 Data)
{
unsigned char i=0;
for(i=8;i>0;i--)
{
if(Data&0x80)
SPI_MOSI_SET; //輸出數據
else SPI_MOSI_CLR;
SPI_SCLK_CLR;
SPI_SCLK_SET;
Data<<=1;
}
}
/*****************************************************************************
* @name :void LCD_WR_REG(u8 data)
* @date :2018-08-09
* @function :Write an 8-bit command to the LCD screen
* @parameters :data:Command value to be written
* @retvalue :None
******************************************************************************/
void LCD_WR_REG(u8 data)
{
LCD_CS_CLR;
LCD_RS_CLR;
SPIv_WriteData(data);
LCD_CS_SET;
}
/*****************************************************************************
* @name :void LCD_WR_DATA(u8 data)
* @date :2018-08-09
* @function :Write an 8-bit data to the LCD screen
* @parameters :data:data value to be written
* @retvalue :None
******************************************************************************/
void LCD_WR_DATA(u8 data)
{
LCD_CS_CLR;
LCD_RS_SET;
SPIv_WriteData(data);
LCD_CS_SET;
}
/*****************************************************************************
* @name :void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)
* @date :2018-08-09
* @function :Write data into registers
* @parameters :LCD_Reg:Register address
LCD_RegValue:Data to be written
* @retvalue :None
******************************************************************************/
void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)
{
LCD_WR_REG(LCD_Reg);
LCD_WR_DATA(LCD_RegValue);
}
/*****************************************************************************
* @name :void LCD_WriteRAM_Prepare(void)
* @date :2018-08-09
* @function :Write GRAM
* @parameters :None
* @retvalue :None
******************************************************************************/
void LCD_WriteRAM_Prepare(void)
{
LCD_WR_REG(lcddev.wramcmd);
}
/*****************************************************************************
* @name :void Lcd_WriteData_16Bit(u16 Data)
* @date :2018-08-09
* @function :Write an 16-bit command to the LCD screen
* @parameters :Data:Data to be written
* @retvalue :None
******************************************************************************/
void Lcd_WriteData_16Bit(u16 Data)
{
LCD_CS_CLR;
LCD_RS_SET;
SPIv_WriteData(Data>>8);
SPIv_WriteData(Data);
LCD_CS_SET;
}
/*****************************************************************************
* @name :void LCD_DrawPoint(u16 x,u16 y)
* @date :2018-08-09
* @function :Write a pixel data at a specified location
* @parameters :x:the x coordinate of the pixel
y:the y coordinate of the pixel
* @retvalue :None
******************************************************************************/
void LCD_DrawPoint(u16 x,u16 y)
{
LCD_SetCursor(x,y);//設置光標位置
Lcd_WriteData_16Bit(POINT_COLOR);
}
/*****************************************************************************
* @name :void LCD_Clear(u16 Color)
* @date :2018-08-09
* @function :Full screen filled LCD screen
* @parameters :color:Filled color
* @retvalue :None
******************************************************************************/
void LCD_Clear(u16 Color)
{
unsigned int i,m;
LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);
LCD_CS_CLR;
LCD_RS_SET;
for(i=0;i<lcddev.height;i++)
{
for(m=0;m<lcddev.width;m++)
{
Lcd_WriteData_16Bit(Color);
}
}
LCD_CS_SET;
}
/*****************************************************************************
* @name :void LCD_GPIOInit(void)
* @date :2018-08-09
* @function :Initialization LCD screen GPIO
* @parameters :None
* @retvalue :None
******************************************************************************/
void LCD_GPIOInit(void)
{
__HAL_RCC_GPIOA_CLK_ENABLE();
}
/*****************************************************************************
* @name :void LCD_RESET(void)
* @date :2018-08-09
* @function :Reset LCD screen
* @parameters :None
* @retvalue :None
******************************************************************************/
void LCD_RESET(void)
{
LCD_RST_CLR;
HAL_Delay(100);
LCD_RST_SET;
HAL_Delay(50);
}
/*****************************************************************************
* @name :void LCD_Init(void)
* @date :2018-08-09
* @function :Initialization LCD screen
* @parameters :None
* @retvalue :None
******************************************************************************/
void LCD_Init(void)
{
LCD_GPIOInit();//LCD GPIO初始化
LCD_RESET(); //LCD 復位
//*************2.2inch ILI9341初始化**********//
LCD_WR_REG(0xCF);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0xD9); //C1
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(0x10);
LCD_WR_DATA(0x7A);
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);
LCD_WR_REG(0xC0); //Power control
LCD_WR_DATA(0x21); //VRH[5:0] //1B
LCD_WR_REG(0xC1); //Power control
LCD_WR_DATA(0x12); //SAP[2:0];BT[3:0] //01
LCD_WR_REG(0xC5); //VCM control
LCD_WR_DATA(0x39); //3F
LCD_WR_DATA(0x37); //3C
LCD_WR_REG(0xC7); //VCM control2
LCD_WR_DATA(0XAB); //B0
LCD_WR_REG(0x36); // Memory Access Control
LCD_WR_DATA(0x48);
LCD_WR_REG(0x3A);
LCD_WR_DATA(0x55);
LCD_WR_REG(0xB1);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x1B); //1A
LCD_WR_REG(0xB6); // Display Function Control
LCD_WR_DATA(0x0A);
LCD_WR_DATA(0xA2);
LCD_WR_REG(0xF2); // 3Gamma Function Disable
LCD_WR_DATA(0x00);
LCD_WR_REG(0x26); //Gamma curve selected
LCD_WR_DATA(0x01);
LCD_WR_REG(0xE0); //Set Gamma
LCD_WR_DATA(0x0F);
LCD_WR_DATA(0x23);
LCD_WR_DATA(0x1F);
LCD_WR_DATA(0x0B);
LCD_WR_DATA(0x0E);
LCD_WR_DATA(0x08);
LCD_WR_DATA(0x4B);
LCD_WR_DATA(0XA8);
LCD_WR_DATA(0x3B);
LCD_WR_DATA(0x0A);
LCD_WR_DATA(0x14);
LCD_WR_DATA(0x06);
LCD_WR_DATA(0x10);
LCD_WR_DATA(0x09);
LCD_WR_DATA(0x00);
LCD_WR_REG(0XE1); //Set Gamma
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x1C);
LCD_WR_DATA(0x20);
LCD_WR_DATA(0x04);
LCD_WR_DATA(0x10);
LCD_WR_DATA(0x08);
LCD_WR_DATA(0x34);
LCD_WR_DATA(0x47);
LCD_WR_DATA(0x44);
LCD_WR_DATA(0x05);
LCD_WR_DATA(0x0B);
LCD_WR_DATA(0x09);
LCD_WR_DATA(0x2F);
LCD_WR_DATA(0x36);
LCD_WR_DATA(0x0F);
LCD_WR_REG(0x2B);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x3f);
LCD_WR_REG(0x2A);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0xef);
LCD_WR_REG(0x11); //Exit Sleep
HAL_Delay(120);
LCD_WR_REG(0x29); //display on
LCD_direction(USE_HORIZONTAL);//設置LCD顯示方向
//LCD_LED=1;//點亮背光
LCD_Clear(WHITE);//清全屏白色
}
/*****************************************************************************
* @name :void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
* @date :2018-08-09
* @function :Setting LCD display window
* @parameters :xStar:the bebinning x coordinate of the LCD display window
yStar:the bebinning y coordinate of the LCD display window
xEnd:the endning x coordinate of the LCD display window
yEnd:the endning y coordinate of the LCD display window
* @retvalue :None
******************************************************************************/
void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
{
LCD_WR_REG(lcddev.setxcmd);
LCD_WR_DATA(xStar>>8);
LCD_WR_DATA(0x00FF&xStar);
LCD_WR_DATA(xEnd>>8);
LCD_WR_DATA(0x00FF&xEnd);
LCD_WR_REG(lcddev.setycmd);
LCD_WR_DATA(yStar>>8);
LCD_WR_DATA(0x00FF&yStar);
LCD_WR_DATA(yEnd>>8);
LCD_WR_DATA(0x00FF&yEnd);
LCD_WriteRAM_Prepare(); //開始寫入GRAM
}
/*****************************************************************************
* @name :void LCD_SetCursor(u16 Xpos, u16 Ypos)
* @date :2018-08-09
* @function :Set coordinate value
* @parameters :Xpos:the x coordinate of the pixel
Ypos:the y coordinate of the pixel
* @retvalue :None
******************************************************************************/
void LCD_SetCursor(u16 Xpos, u16 Ypos)
{
LCD_SetWindows(Xpos,Ypos,Xpos,Ypos);
}
/*****************************************************************************
* @name :void LCD_direction(u8 direction)
* @date :2018-08-09
* @function :Setting the display direction of LCD screen
* @parameters :direction:0-0 degree
1-90 degree
2-180 degree
3-270 degree
* @retvalue :None
******************************************************************************/
void LCD_direction(u8 direction)
{
lcddev.setxcmd=0x2A;
lcddev.setycmd=0x2B;
lcddev.wramcmd=0x2C;
switch(direction){
case 0:
lcddev.width=LCD_W;
lcddev.height=LCD_H;
LCD_WriteReg(0x36,(1<<3)|(0<<6)|(0<<7));//BGR==1,MY==0,MX==0,MV==0
break;
case 1:
lcddev.width=LCD_H;
lcddev.height=LCD_W;
LCD_WriteReg(0x36,(1<<3)|(0<<7)|(1<<6)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
break;
case 2:
lcddev.width=LCD_W;
lcddev.height=LCD_H;
LCD_WriteReg(0x36,(1<<3)|(1<<6)|(1<<7));//BGR==1,MY==0,MX==0,MV==0
break;
case 3:
lcddev.width=LCD_H;
lcddev.height=LCD_W;
LCD_WriteReg(0x36,(1<<3)|(1<<7)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
break;
default:break;
}
}

復制代碼

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