用DS12C887在LCD1602上显示时间为什么会出现乱码,求大神指导下？

地球不再转 2016-05-11 06:07:06



#include<reg52.h>

#include "boardinit.h"

#include "1602led.h"

#include "keyscan.h"

#include "delay.h"

#include "74hc595.h"

#include "ds12c887.h"

#define uchar unsigned char

#define uint unsigned int



sbit data_595si   =P1^0;  //595数据输入口

sbit clk_595srck  =P1^4;  //595数据写进移位寄存器时钟输入口

sbit e_595rck     =P2^3;  //595移位寄存器，数据送输出的时钟

sbit rs_1602=P2^5; //1602rs信号 数据1/指令0选择

sbit rw_1602=P2^6; //1602rw信号

sbit e=P2^4;

sbit data_595si   =P1^0;  //595数据输入口

sbit clk_595srck  =P1^4;  //595数据写进移位寄存器时钟输入口

sbit e_595rck     =P2^3;  //595移位寄存器，数据送输出的时钟

sbit duanxuan=P2^5;	// 数码管，的段选使能，1 通 0关

sbit weixuan=P2^6;	// 数码管，的位选使能，1 通 0关

sbit dsds_ds12c887=P1^0;

sbit dsrw_ds12c887=P1^1;

sbit dsas_ds12c887=P1^2;

//sbit dscs_ds12c887=P1^4;  //该板卡的dscs 信号是通过74hc595提供 该使能信号需在下面子函数处理

sbit dsirq_ds12c887=P3^2;   //中断



uchar num,time,moshi,moshi1,flag,kaiqi,c;

char shi,fen,miao,shiji,nian,yue,ri,xingqi,ashi,afen,amiao,kaiz;



char code table[]=" 20  -  -  ";  //   20  -  -     

uchar code table1[]="      :  :  ";   //       :  :  



void write_ds(uchar add,uchar date);

void set_alarm(uchar nshi,uchar nfen,uchar nmiao);

uchar read_ds(uchar add);







void didi()

{

  write_byte_74hc595(0x02);	//蜂鸣器关

  delay(500);

  write_byte_74hc595(0x06);	//蜂鸣器响

  delay(500);

}

  

void main()

{

   boardinit();    //XK-2板卡初始化 

   lcdinit_1602(); //1602液晶初始化

   init_ds12c887();//ds12c887 初始化

   

	EA=1;

	IT0=1;

	EX0=1;



	 c=read_ds_ds12c887(0x0c);

	 write_ds_ds12c887(0x0b,0x26);//如果开启设置 控制器B，数据为BCD码，时间为24小时制，产生闹钟中断

	 num=0;time=0;moshi=0;moshi1=0;flag=0;kaiqi=0;

   write_order_1602(0x80);

	

   //**************************************************************************

     /*	该部分是调试程序时候使用，当出现时间日期乱码时候，可以尝试重新写入给定数据

	    判断是否是内部保存数据长时间未用导致出现乱码。

   write_ds_ds12c887(4,9);      //小时寄存器 写 9点

   write_ds_ds12c887(2,27);	    //分钟寄存器 写 27分

   write_ds_ds12c887(0,25);	    //秒钟寄存器 写 25秒  

   write_ds_ds12c887(6,7);      //星期寄存器写 7 星期天	  

   write_ds_ds12c887(9,11);     //年寄存器 写 11年

   write_ds_ds12c887(8,8);      //月份寄存器 写 8月

   write_ds_ds12c887(7,7);      //日期寄存器 写 7号

    // */

//***************************************************************************

 	  //在1602上写时间的框架

	Disp_1602(1,1," 20  -  -       ",16);

	Disp_1602(1,2," 00   -  -      ",16); 

	while(1)

	   {

	   	  

		 keyscan();

		 if(flag==1)

		 {

		    didi();

		 }

 

	  	if(kaiqi==0)

	    {			

//****************************************************************************************			

	   //读出DS12C887芯片里的 时间，日期  数据    

			 

			

			 miao  = read_ds_ds12c887(0); //读 秒			 

			 fen   = read_ds_ds12c887(2); //读 分

			 shi   = read_ds_ds12c887(4); //读 时

			 ri    = read_ds_ds12c887(0x07); //读 日

			 yue   = read_ds_ds12c887(0x08); //读 月

			 nian  = read_ds_ds12c887(0x09); //读 年

			 xingqi= read_ds_ds12c887(0x06); //读 星期

			 shiji = read_ds_ds12c887(0x10); //读 实际   保存实际数据，内部不自加，只是当做存储器用			

			 kaiz  = read_ds_ds12c887(0x0e); //读 闹钟 标志位

			 ashi  = read_ds_ds12c887(0x05); //读 闹钟 时

			 afen  = read_ds_ds12c887(0x03); //读 闹钟 分

			 amiao = read_ds_ds12c887(0x01); //读 闹钟 秒



//****************************************************************************************    	 

		//把读出的时间，日期数据， 写到1602液晶显示 

			 write_twoline_1602(5,shi);	   //写 时

			 write_twoline_1602(8,fen);    //写 分

			 write_twoline_1602(11,miao);  //写 秒

			 write_oneline_1602(10,ri);	   //写 日

			 write_oneline_1602(7,yue);    //写 月

			 write_oneline_1602(4,nian);   //写 年

			 write_oneline_1602(14,xingqi);//写 星期

			 write_oneline_1602(2,shiji);  //写 世纪

			 write_twoline_1602(2,kaiz);   //写 闹钟开启位

//*****************************************************************************************	

				

			  }  

		 }	 	 

	 	 	  

}



void exter() interrupt 0

{	

    

	flag=1;                   //开外部中断 0



}

void write_byte_74hc595(uchar dat)			  	//74hc164芯片写一字节数据函数

{

	 uchar i;

	 e_595rck=0;	  //给595RCK低电平	

	 for(i=0;i<8;i++)

	 {

	     clk_595srck=0;	  //给595SRCK低电平				

         data_595si=(dat<<i)&0x80;	   //把我们要使用的数据进行左移处理，保证最终输出的数据与 我们 uchar dat 对应

         clk_595srck=1;	 //给595SRCK高电平		

	 }

	  e_595rck=1;  //给595SRCK高电平，既把 DAT数据数据送到输出

	  data_595si=1;	  //因该数据口和别的电路共用，因此当74hc595使用完后，置“1”解除冲突

}  

void write_order_1602(uchar order_data)//写指令地址

{

	   e=0;

	   rs_1602=0;

	   P0=order_data;

	   _nop_();

	   e=1;

       delay(1);

       e=0;

	   _nop_();

}



void write_data_1602(uchar data_1602)//

{	

	e=0;

	rs_1602=1;

	P0=data_1602;

	_nop_();

	e=1;

    delay(1);

    e=0; 

	_nop_();

}

void Disp_1602(unsigned char x_1602,unsigned char y_1602,unsigned char *p_1602,unsigned char count_1602)

{

	unsigned char i;    

    for(i=0;i<count_1602;i++)

    {

        if (1 == y_1602) x_1602 |= 0x80; 

        else x_1602 |= 0xC0;        

        write_order_1602(x_1602-1);

        write_data_1602(*p_1602);

        x_1602++;					 

        p_1602++;

    }        

}      





void write_oneline_1602(uchar add_1602,uint date_1602)

{

	uchar ge,shi;

	shi=date_1602/10;

    ge=date_1602%10;

	write_order_1602(0x80+add_1602-1);

    write_data_1602(0x30+shi);

    write_order_1602(0x80+add_1602);

    write_data_1602(0x30+ge);	

}

  

void write_twoline_1602(uchar add_1602,uint date_1602)

{

	uchar shi,ge;

    shi=date_1602/10;

    ge=date_1602%10;

   // write_order_1602(0x80+0x40+add_1602-1);

	write_order_1602(0xc0+add_1602);

    write_data_1602(0x30+shi);

    //write_order_1602(0x80+0x40+add_1602);

    write_data_1602(0x30+ge);		   

}



void lcdinit_1602()

{

	        rw_1602=0;

		e=0;

		//write_byte_74hc595(0X02);

		delay(15);

		write_order_1602(0x38);	

		write_order_1602(0x0c);	

		write_order_1602(0x06);	

		write_order_1602(0x01);	 

		delay(5);

}

void boardinit()

{

 duanxuan=1; 

  weixuan=1;  

  P0=0x00; 

  duanxuan=0; 

  weixuan=0; 

 /write_byte_74hc595(0x40);	

  P1=0xff;

  write_byte_74hc595(0x00);	

}



void init_ds12c887()   //初始化函数

{ 

	write_ds_ds12c887(0x0a,0x20); 

	write_ds_ds12c887(0x0b,0x26);

	   

	amiao=read_ds_ds12c887(1);	

      afen=read_ds_ds12c887(3);

	ashi=read_ds_ds12c887(5);

 

}



 void set_alarm_ds12c887(uchar ashi,uchar afen,uchar amiao)

{

	write_ds_ds12c887(1,amiao);

	write_ds_ds12c887(3,afen);

	write_ds_ds12c887(5,ashi);  //在DS12C887闹钟寄存器中写入 闹钟时间 函数 

}



void write_ds_ds12c887(uchar add_ds12c887,uchar data_ds12c887)

{

    delay(1);

	write_byte_74hc595(0X02);//  ds12c887de 使能端 cs=0	   1602背光打开

	delay(1);

	dsas_ds12c887=1;

	dsds_ds12c887=1;

	dsrw_ds12c887=1;

	delay(1);

	P0=add_ds12c887;

	delay(1);

	dsas_ds12c887=0;

	dsrw_ds12c887=0;

	P0=data_ds12c887;

	dsrw_ds12c887=1;

	dsas_ds12c887=1;

	delay(1);

	write_byte_74hc595(0X12);//  ds12c887de 使能端 cs=1	   1602背光打开

	delay(1);	

}



                                    //ds12c887 写数据子函数

//------------------------------------------------------------------------------

uchar read_ds_ds12c887(uchar add_ds12c887)

{



	uchar ds_date; 

	dsas_ds12c887=1;

	dsds_ds12c887=1;

	dsrw_ds12c887=1;

    delay(1);

	write_byte_74hc595(0X02);//  ds12c887de 使能端 cs=0	   1602背光打开             

	delay(1);

	P0=add_ds12c887;

	delay(1);

	dsas_ds12c887=0;

	dsds_ds12c887=0;

	P0=0XFF;

	ds_date=P0;

	dsds_ds12c887=1;

	dsas_ds12c887=1;

    write_byte_74hc595(0X12); //  ds12c887de 使能端 cs=1	   1602背光打开 

	return ds_date;	

}