基于PCF8563和stc12C5A60S2制作的万年历

淩亂°似流年 2022-07-14 12:53 325阅读 0赞

这个星期和同学一起完成了这个课程设计，对单片机也有了更加近一步的了解。这次课程设计做的是基于芯片PCF8563和单片机stc12C5A60S2的万年历，在制作过程中，遇到了好几个问题，有些是硬件电路搭建时的疏忽导致的电路错误，有些是程序编写时的错误，经过反复的检查和调试后，最终完成了这次课程设计。做完这次课设，最大的感受就是搭建实验电路时必须非常严谨，检查每一根线路的正确性，在调试的时候，一定要耐心，不断进行检查。

/*************SMG1.H*************/
    #define uint unsigned int
    #define uchar unsigned char
    
    uint c;
    
    unsigned char rd[7];
    sbit P20=P2^0;
    sbit P21=P2^1;
    sbit P22=P2^2;
    sbit P23=P2^3;
    sbit P24=P2^4;
    sbit P25=P2^5;
    sbit P26=P2^6;
    sbit P27=P2^7;
    sbit P07=P0^7;
    
    uchar code num[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
    
    void delay_time1(unsigned short t)
    {
    unsigned short i,n;
    for(n=0;n<t;n++)
      for(i=0;i<500;i++)
             {;}
    }
    
    void display_time()
    {
    	rd[2]&=0x3f;
    	P2=0xFF;				//关闭所有位选
    	P20=0;					//开某一位
    	c=rd[2]/16;				//赋值
    	P0=num[c];				//送入P0
    	delay_time1(1);			//延时
    	
    	P2=0xFF;
    	P21=0;
    	c=rd[2]%16;
      	P0=num[c];
    	P07=1;
    	delay_time1(1);
    	
    	P2=0xFF;
    	P22=0;
    	c=rd[1]/16;
    	P0=num[c];
    	delay_time1(1);
    	
    	P2=0xFF;
    	P23=0;
    	c=rd[1]%16;
    	P0=num[c];
    	P07=1;
    	delay_time1(1);
    	
    	P2=0xFF;
    	P24=0;
    	c=rd[0]/16;
    	P0=num[c];
    	delay_time1(1);
    	
    	P2=0xFF;
    	P25=0;
    	c=rd[0]%16;
    	P0=num[c];
    	delay_time1(1);
    }
    
    void display_date()
    {
    	rd[6]&=0x1f;
    	P2=0xFF;
    	P20=0;
    	c=rd[6]/16;
    	P0=num[c];
    	delay_time1(1);
    	
    	P2=0xFF;
    	P21=0;
    	c=rd[6]%16;
      	P0=num[c];
    	P07=1;
    	delay_time1(1);
    	
    	rd[5]&=0x1f;
    	P2=0xFF;
    	P22=0;
    	c=rd[5]/16;
    	P0=num[c];
    	delay_time1(1);
    	
    	P2=0xFF;
    	P23=0;
    	c=rd[5]%16;
    	P0=num[c];
    	P07=1;
    	delay_time1(1);
    	
    	rd[3]&=0x3f;
    	P2=0xFF;
    	P24=0;
    	c=rd[3]/16;
    	P0=num[c];
    	delay_time1(1);
    	
    	P2=0xFF;
    	P25=0;
    	c=rd[3]%16;
    	P0=num[c];
    	delay_time1(1);
    }
    //#endif

/**********VIIC_C51.H*****************************/
    #ifdef uchar
    #define READYDEF1
    #else
    #define uchar unsigned char
    #endif
    extern bit ISendByte(uchar sla,uchar c);
    extern bit ISendStr(uchar sla,uchar suba,uchar *s,uchar no);
    extern bit IRcvByte(uchar sla,uchar *c);
    extern bit IRcvStr(uchar sla,uchar suba,uchar *s,uchar no);
    #ifndef READYDEF
    #undef uchar
    #endif
    
    #include <reg52.h>
    #include <intrins.h>
    #define uchar unsigned char
    #define uint unsigned  int
    #define _Nop()  _nop_()
    sbit SDA=P1^7;
    sbit SCL=P1^6;
    bit ack;
    
    
    void delay12()
    {
       uchar i;
       i=12;
       while(--i);
       
    }
    void Start_I2c()
    {
    SDA=1;
    _Nop();
    SCL=1;
    delay12();
    SDA=0;
    delay12();
    SCL=0;
    _Nop();
    _Nop();
    }
    
    void Stop_I2c()
    {
    SDA=0;
    _Nop();
    SCL=1;
    delay12();
    SDA=1;
    delay12();
    }
    
    
    void SendByte(uchar c)
    {
    uchar BitCnt;
    for(BitCnt=0;BitCnt<8;BitCnt++)
    {
    	if((c<<BitCnt)&0x80)SDA=1;
    	else SDA=0;
    	 _Nop();
    	 SCL=1;
    delay12();
    	 SCL=0;
     }
     _Nop();
     _Nop();
     SDA=1;
    delay12();
     SCL=1;
    delay12();
     if(SDA==1)ack=0;
     else ack=1;
     SCL=0;
    delay12();
     }
    
    uchar RcvByte()
    {
    uchar retc;
    uchar BitCnt;
    retc=0;
    SDA=1;
    for(BitCnt=0;BitCnt<8;BitCnt++)
    
     {
     _Nop();
     SCL=0;
    delay12();
     SCL=1;
    delay12();
     retc=retc<<1;
    	if(SDA==1)retc=retc+1;
     _Nop();
     _Nop();
    
    }
    
    SCL=0;
    _Nop();
    _Nop();
    return(retc);
    }
    
    void Ack_I2c(bit a)
    {
    if(a==0)SDA=0;
    else SDA=1;
    _Nop();
    _Nop();
    _Nop();
    SCL=1;
    delay12();
    SCL=0;
    delay12();
    
    
    }
    
    
    //bit ISendByte(uchar sla,uchar c)
    //{
    //Start_I2c();
    //SendByte(sla);
    //  if(ack==0)return(0);
    //  SendByte(c);
    //  if(ack==0)return(0);
    //  Stop_I2c();
    //  return(1);
    //}
    
    
    
    bit ISendStr(uchar sla,uchar suba,uchar *s,uchar no)
    {
     uchar i;
     Start_I2c();
     SendByte(sla);
     if(ack==0)return(0);
      SendByte(suba);
     if(ack==0)return(0);
    
     for(i=0;i<no;i++)
     {
     SendByte(*s);
    
      if(ack==0)return(0);
      s++;
     
     }
    Stop_I2c();
    return(1);
    }
    
    
    //bit IRcvByte(uchar sla,uchar *c)
    //{
    //Start_I2c();
    // SendByte(sla+1);
    // if(ack==0)return(0);
    // *c=RcvByte();
    // Ack_I2c(1);
    // Stop_I2c();
    // return(1);
    // }
    
    
    bit IRcvStr(uchar sla,uchar suba,uchar *s,uchar no)
    {
    uchar i;
    Start_I2c();
     SendByte(sla);
     if(ack==0)return(0);
      SendByte(suba);
     if(ack==0)return(0);
     Start_I2c();
      SendByte(sla+1);
     if(ack==0)return(0);
     for(i=0;i<no-1;i++)
     {
     *s=RcvByte();
     Ack_I2c(0);
     s++;
    
     }
    *s=RcvByte();
    Ack_I2c(1);
    Stop_I2c();
    return(1);
    
    }

/**********wannian.c*****************************/
    #include "stc12.h"
    #include "VIIC_C51.h"
    #include "smg1.h"
    
    #define PCF8563 0xA2
    #define WRADDR 0x00
    #define RDADDR 0x02
    #define CON_STATUS1 0x01
    #define MINALARMADDR 0x09
    #define HOUALARMADDR 0x0A
    
    sbit BUZZ=P1^1;
    
    int flag1,flag2;
    unsigned char rd[7];
    unsigned char time=100;
    unsigned char rcon_sta;
    unsigned char wcon_sta;
    unsigned char alarmflag=0;
    
    unsigned char DelayNS(unsigned char no)
    {
        unsigned char i,j;
        for(;no>0;no--)
             for(i=0;i<100;i++)
                  for(j=0;j<100;j++);
         return 0;
    }
    
    
    void delay_time(unsigned short t)
    {
    	unsigned short i,n;
    	for(n=0;n<t;n++)
    	for(i=0;i<10000;i++)
    	  {;}
    }
    
    void initmcu()
    {
    	EA=1;
    	IT0=1;
    	EX0=1;
    	ET0=1;
    	TMOD=0x01;
    	TH0=(65536-50000)/256;
    	TL0=(65536-50000)%256;
    }
    
    void tt0() interrupt 1 using 1
    {
    	TH0=(65536-50000)/256;
    	TL0=(65536-50000)%256;
    	time--;
    	if(time==0){BUZZ=1;TR0=0;time=100;}
     }
    
    void intt0() interrupt 0 using 0
    {
    	BUZZ=0;
    	TR0=1;
    	alarmflag=1;
    }
    void main()
    { 
        
    	unsigned char code td[9]={0x00,0x12,0x40,0x30,0x12,0x01,0x04,0x12,0x16};//2016.11.30.11.59.40
    	unsigned char minalarm=0x31;//定时12.00响
    	unsigned char houralarm=0x12;
    	delay_time(10);
    	initmcu();
    	ISendStr(PCF8563,WRADDR,td,0x5);
    	DelayNS(1);
    	ISendStr(PCF8563,WRADDR+5,&td[5],0x4);
    	DelayNS(1);
    	ISendStr(PCF8563,MINALARMADDR,&minalarm,0x1);
    	ISendStr(PCF8563,HOUALARMADDR,&houralarm,0x1);
    	IRcvStr(PCF8563,CON_STATUS1,&rcon_sta,0x01);
    	wcon_sta=rcon_sta|0x02;
    	ISendStr(PCF8563,CON_STATUS1,&wcon_sta,0x01);
    	 while(1)
    	 {
    	 	DelayNS(1);
    	 	IRcvStr(PCF8563,RDADDR,rd,0x7);			//读现在的秒、分、时、日、星期、月、年
    		if(alarmflag==1)									
    		{
    			IRcvStr(PCF8563,CON_STATUS1,&rcon_sta,0x01);	//清PCF8563的AF标志位
          		wcon_sta=rcon_sta&0xF7;							//清AF位，但其他位不改变
           		ISendStr(PCF8563,CON_STATUS1,&wcon_sta,0x01);
           		alarmflag=0;		
    		}
    		if(flag2==0)			//两段程序交替显示可以通过flag1和flag2调节时间。
    		{
    			display_time();		//时间显示
    			flag1++;
    		}
    		if(flag1==100)			//flag2控制时间显示时间，flag1控制日期显示时间
    		{
    			display_date();		//日期显示
    			flag2++;
    			if(flag2==50)
    			{
    				flag1=0;
    				flag2=0;
    			}
    		}		
    	 }	
    }