1602显示屏驱动代码

#include<reg52.h>

#define uchar unsigned char
#define uint unsigned int

uchar code table1[]="I love you!";
uchar code table2[]="Xiao Guai";

sbit lcden=P3^4;
sbit lcdrs=P3^5;
sbit lcdrw=P3^6;
sbit dula=P2^6;
sbit wela=P2^7;
uchar num;

void init();
void write_com(uchar com);
void write_data(uchar dat);
void delay_ms(uint del);

void main()
{
    init();

    write_com(0x80+0x10);
    for(num=0;num<11;num++)
    {
    write_data(table1[num]);
    delay_ms(5);
    }

    write_com(0x80+0x50);
    for(num=0;num<9;num++)
    {
    write_data(table2[num]);
    delay_ms(5);
    }

    for(num=0;num<16;num++)
    {
    write_com(0x18);
    delay_ms(200);
    }

    while(1);
}

void init()
{
    dula=0;
    wela=0;
    lcden=0;
    write_com(0x38);
    write_com(0x0f);
    write_com(0x06);
    write_com(0x01);
}

void write_com(uchar com)
{
    lcdrs=0;
    lcdrw=0;
    P0=com;
    delay_ms(5);
    lcden=1;
    delay_ms(5);
    lcden=0;
}

void write_data(uchar dat)
{
    lcdrs=1;
    lcdrw=0;
    P0=dat;
    delay_ms(5);
    lcden=1;
    delay_ms(5);
    lcden=0;
}

void delay_ms(uint del)
{
    uint i;
    for(;del>0;del--)
        for(i=124;i>0;i--);
}