TFT9481驱动问题，请大侠帮忙看看！

cszmlyd · 发表于 2014-11-25 16:00:04

stm32f103vct6
9481
初始化可以完成，但时刷全屏GREEN时死了。
初始化代码如下：

void LCD_Init(void)

{
    RCC->APB2ENR|=1<<2;//先使能外设PORTA时钟
  RCC->APB2ENR|=1<<3;//先使能外设PORTB时钟
RCC->APB2ENR|=1<<4;//先使能外设PORTC时钟
RCC->APB2ENR|=1<<5;//先使能外设PORTD时钟
RCC->APB2ENR|=1<<6;//先使能外设PORTE时钟
RCC->APB2ENR|=1<<0;//开启辅助时钟
//JTAG_Set(JTAG_SWD_DISABLE); //关SWD
//JTAG_Set(SWD_ENABLE);      //开启SWD
  //PB8复用推挽输出(LCD硬件复位口）PB9复用推挽输出(LCD背光控制口）
GPIOB->CRH&=0XFFFFFF00; //清除PB8,PB9的IO口配置
GPIOB->CRH|=0X00000033;
GPIOB->ODR&=0XFCFF;  //原始输出为0
//PA3复用推挽输出
GPIOA->CRL&=0XFFFFF0FF; //清除PA3的IO口配置
GPIOA->CRL|=0X00000300;
GPIOA->ODR|=1<<3;
//PC0~2复用推挽输出
GPIOC->CRL&=0XFFFFF000;   //清除PC0~PC2的IO口配置
GPIOC->CRL|=0X00000333;   //PC0~PC2推挽输出
GPIOC->ODR|=1<<0;
GPIOC->ODR|=1<<1;
GPIOC->ODR|=1<<2;
//PORTE 推挽输出(数据线)
GPIOE->CRH=0X33333333;
GPIOE->CRL=0X33333333;
GPIOE->ODR=0XFFFF;

HD_reset(); //LCD复位

LCD_WR_REG(0x01);
delay_ms(20);
LCD_WR_REG(0x11);
delay_ms(20);
LCD_WR_REG(0x13);
delay_ms(30);

LCD_WR_REG(0x00D0);//电源设置，有3个参数，P115，色彩过白就调节这个3个参数
LCD_WR_DATA(0x0007);//P115
LCD_WR_DATA(0x0045);//P115
LCD_WR_DATA(0x0018);//P115-116

LCD_WR_REG(0x00D1);
LCD_WR_DATA(0x0003);
LCD_WR_DATA(0x0010);//VCM
LCD_WR_DATA(0x0005);//VDV

LCD_WR_REG(0x00D2);//Power Setting for Normal Mode，有2个参数，P119
LCD_WR_DATA(0x0001);//P118
LCD_WR_DATA(0x0011);//P119

LCD_WR_REG(0x00C0);//Panel Driving Setting，有6个参数，P102，主要设置行扫描
LCD_WR_DATA(0x0000);//P102-103 GS=0
LCD_WR_DATA(0x003B);//P103，(0x3B + 1) * 8 = 480行
LCD_WR_DATA(0x0000);//P103
LCD_WR_DATA(0x0000);//P103
LCD_WR_DATA(0x0011);//P103-104

LCD_WR_REG(0x00C1);//Didsplay Timing Setting for Normal Mode，有3个参数，P106
LCD_WR_DATA(0x0010);//P106
LCD_WR_DATA(0x000B);//P106
LCD_WR_DATA(0x0088);//P107

LCD_WR_REG(0x00C5);//Frame Rate and Inversion control，有1个参数，P112
LCD_WR_DATA(0x0003);//P112

LCD_WR_REG(0x00C8);//Gamma Setting，有12个参数，P114
LCD_WR_DATA(0x0000);//P114
LCD_WR_DATA(0x0014);//P114
LCD_WR_DATA(0x0033);//P114
LCD_WR_DATA(0x0010);//P114
LCD_WR_DATA(0x0000);//P114
LCD_WR_DATA(0x0016);//P114
LCD_WR_DATA(0x0044);//P114
LCD_WR_DATA(0x0036);//P114
LCD_WR_DATA(0x0077);//P114
LCD_WR_DATA(0x0000);//P114
LCD_WR_DATA(0x000F);//P114
LCD_WR_DATA(0x0000);//P114

LCD_WR_REG(0x36); //Set_address_mode
LCD_WR_DATA(0x48); //竖屏，从左下角开始，从左到右，从下到上

LCD_WR_REG(0x003A); //Set Pixel Format，有1个参数，P86
LCD_WR_DATA(0x0055);//0x0055为65K色，0x0066为26万色，P86

LCD_WR_REG(0x2A);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0x3F);

LCD_WR_REG(0x2B);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x00);
LCD_WR_DATA(0x01);
LCD_WR_DATA(0xDF);
delay_ms(10);
LCD_WR_REG(0x29);
delay_ms(10);
LCD_WR_REG(0x21);
lcddev.wramcmd=0X2C;

LCD_LED=1;       //点亮背光
LCD_Clear(RED);   delay_ms(500);
LCD_Clear(GREEN);delay_ms(500);
}