stc89c52lcd1602驱动代码

下面是一个简单的stc89c52+lcd1602的驱动代码，你可以参考一下：

#include <reg52.h>

#define LCD_DAT P2
sbit LCD_RS = P1^0;
sbit LCD_RW = P1^1;
sbit LCD_EN = P1^2;

void initLcd1602();
void writeCommand(unsigned char cmd);
void writeData(unsigned char dat);
void delay(unsigned int i);

void main()
{
    initLcd1602();
    writeCommand(0x80); // 设置光标位置
    writeData('H');
    writeData('e');
    writeData('l');
    writeData('l');
    writeData('o');
    writeData(',');
    writeData('W');
    writeData('o');
    writeData('r');
    writeData('l');
    writeData('d');
    while(1);
}

void initLcd1602()
{
    writeCommand(0x38); // 8位数据，2行显示，5*7点阵
    writeCommand(0x0C); // 显示开、光标不可见、光标闪烁关闭
    writeCommand(0x06); // 数据写入后光标右移，地址自动加1
    writeCommand(0x01); // 清屏
}

void writeCommand(unsigned char cmd)
{
    LCD_RS = 0;
    LCD_RW = 0;
    LCD_EN = 0;
    LCD_DAT = cmd;
    delay(1);
    LCD_EN = 1;
    delay(1);
    LCD_EN = 0;
}

void writeData(unsigned char dat)
{
    LCD_RS = 1;
    LCD_RW = 0;
    LCD_EN = 0;
    LCD_DAT = dat;
    delay(1);
    LCD_EN = 1;
    delay(1);
    LCD_EN = 0;
}

void delay(unsigned int i)
{
    while(i--);
}

注：这只是一个简单的示例代码，实际应用可能需要根据具体情况进行修改。