再次发帖,问题依旧没解决。希望各位大神可以帮下忙,拜托拜托各位。
一下这段是在LCD对9341的初始化驱动,整个工程编译后没报错,
下载到板上的现象是 白屏,
通过串口打印出来的却是 LCD ID:1010
下面附上LCD的整个文件,如果哪位大侠乐意的话 下载下来帮我看看问题在哪里?
我用的板子是mini32 2.8寸TFTLCD驱动IC是 9341............
拜托拜托了,真的没辙了。
void LCD_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO,ENABLE); //开启辅助时钟
GPIO_PinRemapConfig(GPIO_Remap_SWJ_NoJTRST,ENABLE); //把JTAG和SW口重映射为普通IO //开启SWD
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC,ENABLE);//先使能外设PORTB时钟//先使能外设PORTC时钟
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_6);
GPIO_SetBits(GPIOC,GPIO_Pin_7);
GPIO_SetBits(GPIOC,GPIO_Pin_8);
GPIO_SetBits(GPIOC,GPIO_Pin_9);
Lcd_Data_Out(); //PB
delay_ms(50); // delay 50 ms
LCD_WriteReg(0x0000,0x0001);
delay_ms(50); // delay 50 ms
DeviceCode = LCD_ReadReg(0x0000);
//if(DeviceCode==0||DeviceCode==0XFFFF)//读到ID不正确
//{
//可能是9341,尝试9341的ID读取
LCD_WR_REG(0XD3);
LCD_RD_DATA(); //dummy read
LCD_RD_DATA(); //读回0X00
DeviceCode=LCD_RD_DATA()&0XBF;//这里读回0XD3,实际是0X93才对.强制去掉第6位
DeviceCode<<=8;
DeviceCode|=LCD_RD_DATA();
//}
printf(" LCD ID:%x\r\n",DeviceCode); //打印LCD ID
LCD_WR_REG(0xCF);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0xC1);
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(0x1B); //VRH[5:0]
LCD_WR_REG(0xC1); //Power control
LCD_WR_DATA(0x01); //SAP[2:0];BT[3:0]
LCD_WR_REG(0xC5); //VCM control
LCD_WR_DATA(0x30); //3F
LCD_WR_DATA(0x30); //3C
LCD_WR_REG(0xC7); //VCM control2
LCD_WR_DATA(0XB7);
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(0x1A);
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(0x2A);
LCD_WR_DATA(0x28);
LCD_WR_DATA(0x08);
LCD_WR_DATA(0x0E);
LCD_WR_DATA(0x08);
LCD_WR_DATA(0x54);
LCD_WR_DATA(0XA9);
LCD_WR_DATA(0x43);
LCD_WR_DATA(0x0A);
LCD_WR_DATA(0x0F);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_REG(0XE1); //Set Gamma
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x15);
LCD_WR_DATA(0x17);
LCD_WR_DATA(0x07);
LCD_WR_DATA(0x11);
LCD_WR_DATA(0x06);
LCD_WR_DATA(0x2B);
LCD_WR_DATA(0x56);
LCD_WR_DATA(0x3C);
LCD_WR_DATA(0x05);
LCD_WR_DATA(0x10);
LCD_WR_DATA(0x0F);
LCD_WR_DATA(0x3F);
LCD_WR_DATA(0x3F);
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
delay_ms(120);
LCD_WR_REG(0x29); //display on
delay_ms(10);
LCD_WR_REG(0x2C);
LCD_Scan_Dir(DFT_SCAN_DIR);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_10);//点亮背光
LCD_Clear(BLUE); //背景红色
}
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