main.c

很实用的单片机例程

#include<reg52.h>
#include "lcd1602.h"
#include "kscan.h"
#define uchar unsigned char
#define uint unsigned int
//sbit LCD_RW=P3^6;

uchar code *ptr[]={"I LIKE MCU","www.baidu.com"};
void main()
{ //LCD_RW=P0;
	uchar num,i;
	lcd_init();
	write_str(0x80+0x40,ptr[0]);
	write_com(0x80);		
	while(1)
	{//LCD_RW=0;
		num=kscan();
		if(num!=0)
		{			
			if(i++==16)
				write_com(0x80+0x40);
			if(num>=10)
				write_data(97+num-10);
			else
			write_data(num+0x30);
		}	
	}
}