原子哥，请教一个问题，急！！！！！！

234280158@qq.co

ILI9341驱动初始化的时候可以不执行复位动作吗？？

正点原子

必须硬件复位.
否则容易出问题.

lycreturn

不复位，tft初始化可能通不过的

234280158@qq.co

原子哥，我主控用的STM8S207，一直是白屏，电

路是这样的，麻烦你看下有什么问题么？

正点原子

回复【4楼】234280158@qq.com:
---------------------------------
电路没问题.
检查代码,先读ID试试.

234280158@qq.co

回复【5楼】正点原子:
--------------------------------读ID，一直读的D3
LCD_WR_REG(0x00d3);
id = LCD_RD_DATA();
//UART_send_byte(id);

id = LCD_RD_DATA();
//UART_send_byte(id);

//UART_send_byte(id>>8);
id = LCD_RD_DATA();
UART_send_byte(id);

id = LCD_RD_DATA();
UART_send_byte(id);

234280158@qq.co

回复【5楼】正点原子:
---------------------------------
整个初始化代码是这样的
void LCD_init(void)
{
uint16_t id=0;

 GPIO_Init( GPIOG,GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|\
                GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7,GPIO_MODE_OUT_PP_HIGH_FAST) ;
/*16位数据高8位*/
    GPIO_Init( GPIOB,GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|\
            GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7,GPIO_MODE_OUT_PP_HIGH_FAST) ;
/*控制脚*/
    GPIO_Init( GPIOD,GPIO_PIN_3|GPIO_PIN_2|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7,GPIO_MODE_OUT_PP_HIGH_FAST) ;
   // 设置PB口低8位引脚为输出，用作LCD16位并行数据和控制引脚
GPIOB->DDR|=0xFF;  
    GPIOB->ODR &=0x00;            // B口低8位引脚置低
   // 设置PC口低8位引脚为输出，用作LCD16位并行数据和控制引脚
GPIOG->DDR|=0xFF; 
GPIOG->ODR &=0x00; // C口低8位引脚置低
  
    GPIOD->DDR&=0xc8;
    GPIOD->DDR|=0x37;
    GPIOD->ODR&=0xc8;
   
    GPIO_RST();
#if 0
//LCD_WR_REG_DATA(0x0000,0x0001);
Delay(100); // delay 50 ms 
    //id = LCD_RD_REG_DATA(0x0000);
//Delay(100); // delay 50 ms 
LCD_WR_REG(0x00d3);
id = LCD_RD_DATA();
//UART_send_byte(id);

id = LCD_RD_DATA();
//UART_send_byte(id);

//UART_send_byte(id>>8);
id = LCD_RD_DATA();
UART_send_byte(id);

id = LCD_RD_DATA();
UART_send_byte(id);

#endif
#if 1
//ILI9327,BOE3.0
//************* Start Initial Sequence **********// 
LCD_WR_REG(0x00CF);  
LCD_WR_DATA(0x0000); 
LCD_WR_DATA(0x00C1); 
LCD_WR_DATA(0X0030); 
 
LCD_WR_REG(0x00ED);  
LCD_WR_DATA(0x0064); 
LCD_WR_DATA(0x0003); 
LCD_WR_DATA(0X0012); 
LCD_WR_DATA(0X0081); 
 
LCD_WR_REG(0x00E8);  
LCD_WR_DATA(0x0085); 
LCD_WR_DATA(0x0010); 
LCD_WR_DATA(0x007A); 
 
LCD_WR_REG(0x00CB);  
LCD_WR_DATA(0x0039); 
LCD_WR_DATA(0x002C); 
LCD_WR_DATA(0x0000); 
LCD_WR_DATA(0x0034); 
LCD_WR_DATA(0x0002); 
 
LCD_WR_REG(0x00F7);  
LCD_WR_DATA(0x0020); 
 
LCD_WR_REG(0x00EA);  
LCD_WR_DATA(0x0000); 
LCD_WR_DATA(0x0000); 
 
LCD_WR_REG(0x00C0); //Power control 
LCD_WR_DATA(0x0021); //VRH[5:0] 
//LCD_WR_DATA(0x1B); //VRH[5:0] 
 
LCD_WR_REG(0x00C1); //Power control 
LCD_WR_DATA(0x0013); //SAP[2:0];BT[3:0] 
//LCD_WR_DATA(0x01); //SAP[2:0];BT[3:0] 
 
LCD_WR_REG(0x00C5); //VCM control 
LCD_WR_DATA(0x003F); 
LCD_WR_DATA(0x003C); 
//LCD_WR_DATA(0x30); 
//LCD_WR_DATA(0x30); 
 
LCD_WR_REG(0x00C7); //VCM control2 
LCD_WR_DATA(0X00AE); 
//LCD_WR_DATA(0xB7); 

LCD_WR_REG(0x0036); // Memory Access Control 
LCD_WR_DATA(0x0008); 
//LCD_WR_DATA(0x48); //C8    //48 68竖屏//28 E8 横屏
 
LCD_WR_REG(0x003A);   
LCD_WR_DATA(0x0055); 

LCD_WR_REG(0x00B1);   
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x0016); 
//LCD_WR_DATA(0x1A);

LCD_WR_REG(0x00B6); // Display Function Control 
LCD_WR_DATA(0x000A); 
LCD_WR_DATA(0x00A2); 

LCD_WR_REG(0x00F6);
LCD_WR_DATA(0x0001); 
LCD_WR_DATA(0x0030); 
 
LCD_WR_REG(0x00F2); // 3Gamma Function Disable 
LCD_WR_DATA(0x0000); 
 
LCD_WR_REG(0x0026); //Gamma curve selected 
LCD_WR_DATA(0x0001); 


LCD_WR_REG(0x002B); 
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x0001);
LCD_WR_DATA(0x003f);


LCD_WR_REG(0x002A); 
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x0000);
LCD_WR_DATA(0x00ef); 

LCD_WR_REG(0x0011); //Exit Sleep 
Delay(240); 
LCD_WR_REG(0x0029); //Display on 
}