lcd12887_1.c

数字时钟芯片DS12CR887的驱动与LCD1602液晶显示~采用8位数据总线的方式进行读写~

/*--------------------------------------------------------------*/
//包含头文件
#include<AT89X52.H>
#include"LCD1602_8.H"
#include"DS12887_1.H"


/*--------------------------------------------------------------*/
unsigned char k;	//键值
unsigned char Set;	//调整值


/*--------------------------------------------------------------*/
//延时200ms 函数定义
void delay200ms(void)
{
  	unsigned char i,j,k;
  	for(i=201;i>0;i--)
  	for(j=32;j>0;j--)
  	for(k=14;k>0;k--);
}


/*--------------------------------------------------------------*/
//延时5000+0us 函数定义
void delay5ms(void)
{
    unsigned char i,j;
    for(i=185;i>0;i--)
    for(j=12;j>0;j--);
}


/*--------------------------------------------------------------*/
//键盘扫描
void Keysan(void)				//P0_0切换键，P0_1数值加，P0_1数值减
{
	if(P0_0 == 0)
	{
		delay5ms();
		if(P0_0 == 0)	k++;
		if(k == 7)		k = 0;
	}
	if(P0_1 == 0)	{delay5ms();	if(P0_1 == 0)	Set++;}
	if(P0_2 == 0)	{delay5ms();	if(P0_2 == 0)	Set--;}
	switch(k)
	{
			case 0:	DS12887_SetTime(DS12887_Second, Set); if(Set > 59 || Set < 0)  Set = 0;  break;
			case 1:	DS12887_SetTime(DS12887_Minute, Set); if(Set > 59 || Set < 0)  Set = 0;  break;
			case 2:	DS12887_SetTime(DS12887_Hour  , Set); if(Set > 24 || Set < 0)  Set = 0;  break;
			case 3:	DS12887_SetTime(DS12887_Day   , Set); if(Set > 31 || Set < 0)  Set = 0;  break;
			case 4:	DS12887_SetTime(DS12887_Month , Set); if(Set > 12 || Set < 0)  Set = 0;  break;
			case 5:	DS12887_SetTime(DS12887_Year  , Set);break;
			default: break;
	}
}

/*--------------------------------------------------------------*/
//主函数
void main(void)
{	
	
	SYSTEMTIME CurrentTime;
	lcd_init();
	DS12887_Init();

	lcd_pos(0,0);
	prints("Date:");
	lcd_pos(0,1);
	prints("Time:");
	k = 6; 	//不改变时间
    while(1)
	{
		DS12887_GetTime(&CurrentTime);
		DateToStr(&CurrentTime);
		TimeToStr(&CurrentTime);
		lcd_pos(6,0);
		prints(CurrentTime.DateString);
		lcd_pos(6,1);
		prints(CurrentTime.TimeString);
		delay200ms();
		Keysan();
	}
}