main.c

单片机与时钟芯片ds1302接口程序

#include "24Cxx.h"
#include "LCD1602.h"
unsigned char code ASCII[] ="0123456789ABCDEF";
unsigned char R_buf[16];
unsigned char W_buf[16];
void delayms(unsigned int time)
{
    unsigned int i;
    unsigned char j;
    for (i=0;i<time;i++)
    {
        for(j=0;j<200;j++);
        for(j=0;j<97;j++);
    }
}

void main(void)
{
	unsigned char i,j;
	P34=0;
	T1=1;
		delayms(100);
 	for(i=0;i<16;i++)
	{
		W_buf[i]=i;
	}
	LCD_init();
//	LCD_write_string(1,1,"abc");
//	while(1);
	while(1)
	{
		WDIIC(W_buf,8,0,SLA_ADD,M2402);			//2402一页为8字节
		WDIIC(W_buf+8,8,8,SLA_ADD,M2402);
		delayms(1);
		RDIIC(R_buf,8,0,SLA_ADD,M2402);
		RDIIC(R_buf+8,8,8,SLA_ADD,M2402);

		for(j=0;j<8;j++)
		{
		  LCD_write_char(0,j*2,ASCII[R_buf[j]>>4]);
		  LCD_write_char(0,j*2+1,ASCII[R_buf[j]&0x0f]);
		}
		delayms(1);
		for(j=0;j<8;j++)
		{
		  LCD_write_char(1,j*2,ASCII[R_buf[j+8]>>4]);
		  LCD_write_char(1,j*2+1,ASCII[R_buf[j+8]&0x0f]);
		}
		for(i=0;i<16;i++)
		{
			W_buf[i]=W_buf[i]+1;
		}
		delayms(1000);
	}
}