51

51单片机典型模块开发

#include <reg51.h>           	// 该程序具有显示日期、月份、日期和时间功能
#include<stdio.h>
#include<intrins.h>
#define uchar 		unsigned char
#define uint 		unsigned int
#define sint        signed int

#define disp_off  	0x3e     	//显示关
#define disp_on   	0x3f     	//显示开
#define disp_x   	0xb8     	//页地址为0页
#define disp_z   	0xc0     	//行地址为0行
#define disp_y   	0x40     	//列地址为0列
#define comm     	0     		//命令标志位
#define dat1      	1     		//数据标志位
#define data_ora   	P0     		//液晶12864的数据端与单片机的P0相连

sbit di =P2^0; 					//Data or Instrument Select,H:写数据,L:写指令
sbit rw =P2^1; 					//Write or Read,H:read,L:write
sbit e 	=P2^4; 					//读写使能
sbit cs1=P2^2; 					//cs1=H,选择左半屏
sbit cs2=P2^3; 					//cs2=H,选择右半屏

sbit clk=P1^0;        			//8563 clk
sbit dat=P1^1;        			//8563 data

uchar fen=0x42,miao=0x38,shi=0x17,riqi=0x02,//设置时间用
yuefen=0x09,xingqi=0x00,nian=0x07,zhongduan;//设置时间用
uchar code tabma[10][16]=
//阴码点阵格式、取模方式为列行式、逆向取模（低位在前），
//十六进制输出，中文16*16，英文8*16 宋体
{

 //0(0) 1(1) 2(2) 3(3) 4(4) 5(5) 6(6) 7(7) 8(8) 9(9)

{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00},	/*"0",0*/

{0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00},	/*"1",1*/

{0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00},	/*"2",2*/

{0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00},	/*"3",3*/

{0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00},	/*"4",4*/

{0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00},	/*"5",5*/

{0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00},	/*"6",6*/

{0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00},	/*"7",7*/

{0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00},	/*"8",8*/

{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00},	/*"9",9*/
};

uchar code tab2ma[7][32]=
//  日(0) 一(1) 二(2) 三(3) 四(4) 五(5) 六(6)
{
{0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,
0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,
0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00},	/*"日",0*/

{0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,
0x80,0x80,0x80,0x80,0x80,0xC0,0x80,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},	/*"一",1*/

{0x00,0x00,0x04,0x04,0x04,0x04,0x04,0x04,
0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x00,
0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
0x10,0x10,0x10,0x10,0x10,0x18,0x10,0x00},	/*"二",2*/

{0x00,0x04,0x84,0x84,0x84,0x84,0x84,0x84,
0x84,0x84,0x84,0x84,0x84,0x04,0x00,0x00,
0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,
0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00},	/*"三",3*/

{0x00,0xFE,0x02,0x02,0x02,0xFE,0x02,0x02,
0xFE,0x02,0x02,0x02,0x02,0xFE,0x00,0x00,
0x00,0x7F,0x28,0x24,0x23,0x20,0x20,0x20,
0x21,0x22,0x22,0x22,0x22,0x7F,0x00,0x00},	/*"四",4*/

{0x00,0x02,0x82,0x82,0x82,0x82,0xFE,0x82,
0x82,0x82,0xC2,0x82,0x02,0x00,0x00,0x00,
0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,
0x20,0x20,0x3F,0x20,0x20,0x30,0x20,0x00},	/*"五",5*/

{0x10,0x10,0x10,0x10,0x10,0x91,0x12,0x1E,
0x94,0x10,0x10,0x10,0x10,0x10,0x10,0x00,
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x00,
0x00,0x01,0x02,0x0C,0x78,0x30,0x00,0x00},	/*"六",6*/
};
uchar code nianma[]=
//年(0) 月(1) 日(2) 星(3) 期(4)

{0x40,0x20,0x10,0x0C,0xE3,0x22,0x22,0x22,
0xFE,0x22,0x22,0x22,0x22,0x02,0x00,0x00,
0x04,0x04,0x04,0x04,0x07,0x04,0x04,0x04,
0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00};	/*"年",0*/
uchar code yuema[]=
{0x00,0x00,0x00,0x00,0x00,0xFF,0x11,0x11,
0x11,0x11,0x11,0xFF,0x00,0x00,0x00,0x00,
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x01,
0x01,0x21,0x41,0x3F,0x00,0x00,0x00,0x00};	/*"月",1*/
uchar code rima[]=
{0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,
0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,
0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00};	/*"日",2*/
uchar code xingqima[]=
{0x00,0x00,0x00,0xBE,0x2A,0x2A,0x2A,0xEA,
0x2A,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,
0x00,0x48,0x46,0x41,0x49,0x49,0x49,0x7F,
0x49,0x49,0x49,0x49,0x49,0x41,0x40,0x00,	/*"星",3*/

0x00,0x04,0xFF,0x54,0x54,0x54,0xFF,0x04,
0x00,0xFE,0x22,0x22,0x22,0xFE,0x00,0x00,
0x42,0x22,0x1B,0x02,0x02,0x0A,0x33,0x62,
0x18,0x07,0x02,0x22,0x42,0x3F,0x00,0x00};	/*"期",4*/

//时(0) 分(1) 秒(2)
uchar code shima[]=
{0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90,
0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00,
0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00,
0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00};	/*"时",0*/
uchar code fenma[]=
{0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80,
0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00,
0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00,
0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00};	/*"分",1*/
uchar code miaoma[]=
{0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38,
0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00,
0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40,
0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00};	/*"秒",2*/

void delay(sint n);             			//延时程序
void xie_start();            				//开始条件
void xie_stop();           					//停止条件
bit xie1(uchar shu);           				//向8563中写入1个字
uchar du1();           						//从8563中读出1个字
uchar du();           						//从8563中读出时间和日期
uchar xie();           						//向8563中设置时间和日期
//uchar xie_dingshi();           			//8563定时器设置
//uchar xie_fangbo_dingshi();           	//8563的方波设置
void delay1 (uint ms);           			//延时
void wr_lcd (uchar dat_comm,uchar content);	//向12864中写命令
//uchar rd_lcd ();							//读12864数据
void chk_busy ();							//忙闲检测
void lat_disp (uchar data1,uchar data2);	//写点钟
//void img_disp (uchar code *img) ;			//显示图像
void chn_disp (uchar x,uchar y,uchar xl,uchar yl,uchar row_xl,uchar row_yl,uchar code *chn);
											//显示汉字
void init_lcd ();							//12864初始化
void disp();								//128显示程序

//-------------主函数--------------------
void main()
 {
	uchar ml=0;
    init_lcd ();							//LCD初始化
	lat_disp(0x00,0x00);    	
    xie(); 									//预设时间用，设置好时间后可以屏蔽 
	for(;;)      
    {
		du(); 								//读8563的时间
		lat_disp(0x00,0x00);		
		disp();								//显示时间
		delay1(100);	
	}        
}

//-------------------延时---------------------------//
void delay(sint n)
{ 
	for(n;n>0;n--); 
}


/////////////////////以下是PCF8563读写/////////////////////以下是PCF8563读写
/* I2C的起始条件，在时钟端SCK为高电平时，数据端SDA发生由高到低的变化，为起始条件，
启动I2C总线。程序代码如下。 */
void xie_start()
{
	clk=1;_nop_();
	dat=1;_nop_();
	dat=0;_nop_();
	clk=0;_nop_();
}

/* I2C的停止条件，在时钟端SCL为高电平时，数据端SDA发生由低到高的变化，
为停止条件，停止I2C总线数据传输。 */
void xie_stop()
{
	dat=0;_nop_();
	clk=1;_nop_();
	dat=1;_nop_();
}

bit xie1(uchar shu)              			//向8563中写入1个字
{
	uchar i=8;
	bit fan_w;
	clk=0;_nop_();
	while(i--)
	{
		dat=(bit)(shu&0x80); 				//取字节的最高位
		_nop_();
		shu<<=1;     						//字节左移一位
		clk=1;    	 						//上升沿锁存数据
		_nop_();
		clk=0;
		_nop_();
	}
	dat=1;
	_nop_();
	clk=1;
	_nop_();
	fan_w=dat;            					//读应答信号
	clk=0;
	_nop_();
	return(fan_w);        					//返回应答信号
}
uchar du1()                					//从8563中读出1个字
{
	uchar shu=0;
	uchar data rdata;
	uchar i=8;
	while(i--)
	{
		rdata<<=1;    						//字节左移一位
		dat=1;
		clk=1;_nop_();  					//上升沿锁存数据
		if(dat) rdata|=0x01;  				//数据线为1时 对应位存1 
		clk=0;_nop_();
	}
	shu=rdata;  							//读到的数据存于SHU
	return(shu); 							//返回读到的数据
}

uchar du()
{
	EA=0;									//关总中断
	xie_start(); 							//起始条件                 		
	if(xie1(0xa2)!=0){xie_stop();return(0);}//取器件地址 写
	if(xie1(0x02)!=0){xie_stop();return(0);}//取读时间的首字节地址从秒开始读
	xie_start(); 							//起始条件
	if(xie1(0xa3)!=0){xie_stop();return(0);}//取器件地址 读
	miao=du1()&0x7f;						//读秒 屏蔽最高位
	xie_stop();								//停止条件

	xie_start();                 			//起始条件 
	if(xie1(0xa2)!=0){xie_stop();return(0);}//取器件地址 写
	if(xie1(0x03)!=0){xie_stop();return(0);}//取读分钟字节地址
	xie_start(); 							//起始条件
	if(xie1(0xa3)!=0){xie_stop();return(0);}//取器件地址 读
	fen=du1()&0x7f;                			//读分 屏蔽最高位
	xie_stop();								//停止条件

	xie_start();                  			//起始条件
	if(xie1(0xa2)!=0){xie_stop();return(0);}//取器件地址 写