STC89C52并行驱动tm128128A4FW后白屏，不知什么原因，谁有并行初始化代码

Question

STC89C52并行驱动tm128128A4FW后白屏，不知什么原因，谁有并行初始化代码

Answer 1

根据提供的信息，STC89C52 并行驱动 tm128128A4FW 后出现白屏，可能是初始化代码存在问题。以下是一个可能的并行初始化代码示例：

#include <reg52.h>

// 并行接口定义
sbit LCD_RS = P2^0;
sbit LCD_RW = P2^1;
sbit LCD_EN = P2^2;
sbit LCD_D0 = P0^0;
sbit LCD_D1 = P0^1;
sbit LCD_D2 = P0^2;
sbit LCD_D3 = P0^3;
sbit LCD_D4 = P0^4;
sbit LCD_D5 = P0^5;
sbit LCD_D6 = P0^6;
sbit LCD_D7 = P0^7;

void LCD_Init()
{
    // 初始化并行接口
    LCD_RS = 0;
    LCD_RW = 0;
    LCD_EN = 0;
    LCD_D0 = 0;
    LCD_D1 = 0;
    LCD_D2 = 0;
    LCD_D3 = 0;
    LCD_D4 = 0;
    LCD_D5 = 0;
    LCD_D6 = 0;
    LCD_D7 = 0;

    // 等待一段时间
    Delay_ms(100);

    // 发送初始化命令
    LCD_Write_Command(0x38); // 8 位数据，2 行显示，5x7 点阵
    LCD_Write_Command(0x0C); // 显示开，无光标，不闪烁
    LCD_Write_Command(0x06); // 光标右移，字符不移
    LCD_Write_Command(0x01); // 清屏

    // 等待一段时间
    Delay_ms(100);
}

void LCD_Write_Command(unsigned char command)
{
    LCD_RS = 0;
    LCD_RW = 0;
    LCD_EN = 1;
    LCD_D0 = (command & 0x01) >> 0;
    LCD_D1 = (command & 0x02) >> 1;
    LCD_D2 = (command & 0x04) >> 2;
    LCD_D3 = (command & 0x08) >> 3;
    LCD_D4 = (command & 0x10) >> 4;
    LCD_D5 = (command & 0x20) >> 5;
    LCD_D6 = (command & 0x40) >> 6;
    LCD_D7 = (command & 0x80) >> 7;
    LCD_EN = 0;
}

void LCD_Write_Data(unsigned char data)
{
    LCD_RS = 1;
    LCD_RW = 0;
    LCD_EN = 1;
    LCD_D0 = (data & 0x01) >> 0;
    LCD_D1 = (data & 0x02) >> 1;
    LCD_D2 = (data & 0x04) >> 2;
    LCD_D3 = (data & 0x08) >> 3;
    LCD_D4 = (data & 0x10) >> 4;
    LCD_D5 = (data & 0x20) >> 5;
    LCD_D6 = (data & 0x40) >> 6;
    LCD_D7 = (data & 0x80) >> 7;
    LCD_EN = 0;
}

void Delay_ms(unsigned int ms)
{
    unsigned int i, j;
    for (i = 0; i < ms; i++)
    {
        for (j = 0; j < 120; j++);
    }
}

void main()
{
    LCD_Init();

    // 在此处添加显示内容的代码

    while (1)
    {
        // 循环执行
    }
}

请注意，以上代码仅为示例，具体的初始化代码可能因 tm128128A4FW 的规格和要求而有所不同。你可以根据实际情况进行调整和修改。此外，还需要确保连接正确、电源稳定等因素，以确保正常显示。如果问题仍然存在，建议检查硬件连接、参考 tm128128A4FW 的数据手册或咨询相关技术支持。