///////////////////////////////////////////////////////////////////
/*名称:单片机读取DS1302时钟芯片,带调整功能 /
/* /
///////////////////////////////////////////////////////////////////*/
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
#define xiEMIao 0x80
#define xiefen 0x82
#define xieshi 0x84
#define xieri 0x86
#define xieyue 0x88
#define xiezhou 0x8a
#define xienian 0x8c
#define dumiao 0x81
#define dufen 0x83
#define dushi 0x85
#define duri 0x87
#define duyue 0x89
#define duzhou 0x8b
#define dunian 0x8d
#define kongzhi 0x8e
uchar rem[8]={0,3,10,5,1,10,5,1};
uchar bcd[11]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf};
uchar HSHI,LSHI,moshi,shanjishu;
uint j;
bit SR_1,S_1,aj_1,shan_1;
sbit CS1=P1^0; ////显示器选择线
sbit CS2=P1^1;
sbit E=P1^2;
sbit SCLK=P2^0; ////DS1302管脚定义
sbit DIO=P2^1;
sbit DCE=P2^2;
sbit SB1=P2^7; ////按键定义:时日选择键
sbit SB2=P2^6; ////调整模式键
sbit SB3=P2^5; ////加加键
sbit SB4=P2^4; ////减减键
sbit ACC_7=ACC^7;
/////////////////////////////
yanshi(uint kk)
{
while(kk--);
}
///////////////////////显示
xianshi()
{
uchar i;
for(i=0;i<8;i++)
{
if(shan_1)if(i==moshi)i=i+2;
P0=~(0x01<<i);
E=0;
CS2=0;
E=1;
CS2=1;
P0=bcd[rem[i]];
E=0;
CS1=0;
E=1;
CS1=1;
yanshi(10);
P0=0xff;
E=0;
CS1=0;
E=1;
CS1=1;
}
shanjishu++;
if(shanjishu==200)
{
shanjishu=0;
shan_1=~shan_1;
}
}
////////////////////////////向DS1302写数据
xieds1302(uchar dizhi,shuju)
{uchar i,tem;
DCE=0;
SCLK=0;
DCE=1;
for(i=0;i<8;i++) //地址传输
{
SCLK=0;
tem=dizhi;
DIO=(bit)(tem&0x01);
dizhi>>=1;
SCLK=1;
}
for(i=0;i<8;i++) ///数据传送
{
SCLK=0;
tem=shuju;
DIO=(bit)(tem&0x01);
shuju>>=1;
SCLK=1;
}
DCE=0;
}
/////////////////////////////////////读取DS1302的数据
duds1302(uchar dizhi)
{
uchar i,tem,temp;
temp=0;
DCE=0;
SCLK=0;
DCE=1;
for(i=0;i<8;i++) ////传送地址
{
SCLK=0;
tem=dizhi;
DIO=(bit)(tem&0x01);
dizhi>>=1;
SCLK=1;
}
for(i=0;i<8;i++) ////读取数据
{
ACC_7=DIO;
SCLK=0;
ACC>>=1;
SCLK=1;
}
DCE=0;
temp=ACC;
LSHI=temp&0x0f;
HSHI=(temp&0xf0)>>4;
}
/////////////////////////////////读取时间
dushijian()
{
duds1302(dumiao); ///读秒
rem[0]=LSHI;
rem[1]=HSHI;
duds1302(dufen); ///读分
rem[3]=LSHI;
rem[4]=HSHI;
duds1302(dushi); ///读时
rem[6]=LSHI;
rem[7]=HSHI;
}
//////////////////////////////读取日期
duriqi()
{
duds1302(duri); ///// 读日
rem[0]=LSHI;
rem[1]=HSHI;
duds1302(duyue); //////////读月
rem[3]=LSHI;
rem[4]=HSHI;
duds1302(dunian); /////////读年
rem[6]=LSHI;
rem[7]=HSHI;
}
//////////////////////////////////////
xieshijian(uchar wei,hwei)
{
uchar he;
xieds1302(kongzhi,0x00);
he=rem[wei]+rem[hwei]*16;
if(wei==0)xieds1302(xiemiao,he);
if(wei==3)xieds1302(xiefen,he);
if(wei==6)xieds1302(xieshi,he);
xieds1302(kongzhi,0x80);
}
////////////////////////////
xieriqi(uchar wei,hwei)
{uchar he;
xieds1302(kongzhi,0x00);
he=rem[wei]+rem[hwei]*16;
if(wei==0)xieds1302(xieri,he);
if(wei==3)xieds1302(xieyue,he);
if(wei==6)xieds1302(xienian,he);
xieds1302(kongzhi,0x80);
}
///////////////////////////////////////
tiaozheng(uchar wei)
{
uchar hwei;
hwei=wei+1; //每数两位,低位是wei高位是hwei
if(aj_1)
{
if(SB3==0) ////是否SB3按下,加加键
{
xianshi();
if(SB3==0)
{
aj_1=0; ////
while(SB3==0)xianshi();
if(SR_1) ////是不是日期
{
rem[wei]++; ////低位加加
if(rem[wei]>9)
{
rem[hwei]++; //高位加加
rem[wei]=0;
if(rem[hwei]>9)rem[hwei]=0;
}
if(wei==0)if(rem[1]==3)if(rem[0]==2)rem[0]=rem[1]=0;//日够31归零调整
if(wei==3)if(rem[4]==1)if(rem[3]>2)rem[3]=rem[4]=0;//月到12归零调整
xieriqi(wei,hwei);
}
else
{
rem[wei]++;
if(rem[wei]>9)
{
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