標(biāo)題: 單片機(jī)1602 [打印本頁(yè)]

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作者: 繼續(xù)奔跑2018    時(shí)間: 2018-1-29 13:37
標(biāo)題: 單片機(jī)1602
#include<reg52.h>
typedef unsigned int  u16;
typedef unsigned char u8;

#define DATA P0
sbit rs = P2^1;
sbit rw = P1^5;
sbit en = P1^6;
void delay(u16 num)
{
        u16 x,y;
        for (x=num; x>0; x--)
                for(y=110; y>0; y--);
}
void write_cmd (u8 cmd)
{
        rs = 0;
        rw = 0;
        DATA = cmd;
        delay(5);
        en = 1;
        delay(5);
        en = 0;
}
void write_data (u8 dat)
{
        rs = 1;
        rw = 0;
        DATA = dat;
        delay(5);
        en = 1;
        delay(5);
        en = 0;
}
void lcd_init (void)
{
        write_cmd(0x02);
        write_cmd(0x06);
        write_cmd(0x0c);
        write_cmd(0x38);
        write_cmd(0x01);
}

int main (void)
{
        rw = 0;
        rs = 0;
        en = 0;
        lcd_init();
        write_cmd(0xc0);
        write_data('I');
        write_data(' ');
        write_data(0x26);
        write_data(' ');
        write_data('U');       
        while(1);
}

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