1302芯片

#include <reg52.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned intsbit SCL = P3^6; //定义时钟信号接口sbit IO = P3^4; //定义数据信号接口sbit RST = P3^5; //定义复位信号接口sbit ACC0 = ACC^0; //ACC寄存器的最低位sbit ACC7 = ACC^7; //ACC寄存器的最高位uchar ds1,ds2,time;uchar curttime[7];//数码管显示字符表uchar code table[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};//初始化时间表uchar code InitTime[] = {0x01,0x20,0x02,0x16,0x10,0x06,0x10, };//段选表uchar code tabwcon[] ={0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00};//读取时间的地址表uchar code read_time_address[7]={0x81,0x83,0x85,0x87,0x89,0x8b,0x8d};//写入时间的地址表code uchar write_rtc_address[7]={0x80,0x82,0x84,0x86,0x88,0x8a,0x8c};//数码管显示延时函数void delay(uint z){uint x,y;for(x=z;x>0;x--){for(y=190;y>0;y--);{}}}//发送一个字节void SendByte(uchar date){uchar i;ACC = date; //将date变量存入ACC中for (i = 8; i >0; i--){IO = ACC0;SCL = 1; //时钟信号线拉高发送一位数据SCL = 0; //发送完一位数据后拉低时钟线ACC = ACC>>1; //将ACC的D1位移到D0位准备发送}}//接收一个字节uchar AccByte(void){uchar i;for (i = 8; i >0; i--){ACC = ACC>>1; //向右一位准备接受总线上的数据ACC7 = IO; //从总线上接收数据并存到ACC7中SCL = 1; //从总线上接收到一位数据SCL = 0; //接收完一位数据后拉低时钟线}return (ACC); //返回接收到的数据 ACC}//写一个字节注意与读一个字节的区别void WriteByte(uchar add, uchar date){RST = 0; SCL = 0; RST = 1; //初始化开启丛机内部定时器电路SendByte(add); //发送将写入数据的地址SendByte(date); //向预定地址写入数据 //拉高时钟线为下一次读取的初始化SCL = 1; RST = 0; //屏蔽任何输入输出释放总线}//读一个字节注意与发一个字节的区别uchar ReadByte(uchar add){uchar date;RST = 0; SCL = 0; RST = 1; //初始化开启丛机内部定时器电路SendByte(add); //发送将读数据的地址date = AccByte(); //将接收到的数据赋予rdate //拉高时钟线为下一次读取的初始化SCL = 1; RST = 0; //屏蔽任何输入输出return (date); //返回读到的数据}//时钟寄存器多字节写/*void BurstW1302T(uchar *p) //P寄存器地址指针{uint i;WriteByte(0X8e,0x00); //写保护控制命令 WP = 0（开启写命令）写操作RST = 0; SCL = 0; RST = 1; //初始化SendByte(0xbe); //时钟多字节写命令（时钟突发访问）// 向地址逐一发送数据for (i = 0; i < 8; i++){SendByte(*p);p++;}SCL = 1; //拉高时钟线为下一次读取的初始化RST = 0; //主机释放总线}//时钟寄存器多字节读读数据的时候不用写保护控制命令void BurstR1302T(uchar *p){uint i;RST = 0; SCL = 0; RST = 1; //初始化SendByte(0xbf); //时钟多字节读命令（时钟突发访问）for (i = 0; i < 8; i++){*p = AccByte(); //接收数据并将其存到P指针所指向的地址p++;}SCL = 1; RST = 0; //同上}//RAM寄存器多字节写（道理同时钟数据多字节读写一样）void BurstW1302R(uchar *p){uint i;WriteByte(0X8e,0x00);RST = 0; SCL = 0; RST = 1;SendByte(0xfe); //寄存器突发访问（写）for (i = 0; i < 32; i++){SendByte(*p);p++;}SCL = 1; RST = 0;}//RAM寄存器多字节读（道理同时钟数据多字节读写一样）void BurstR1302R(uchar *p){uint i;RST = 0; SCL = 0; RST = 1;SendByte(0xff); //寄存器突发访问（读）for (i = 0; i < 32; i++){*p = AccByte();p++;}SCL = 1; RST = 0;} *///设置初始化时间注意区分于多字节写的不同void TimeSet(uchar *p){uchar i;uchar add = 0x80; //写入数据的初始地址WriteByte(0x8e,0x00); //写保护控制 WP=0,允许写入数据for (i = 0; i < 7; i++){WriteByte(add,*p);p++;add += 2;}WriteByte(0x8e,0x80); //写保护控制 WP=1,禁止写入数据}//读取时间并将其存到数组中void GetTime(uchar curttime[]){uchar i;uchar add = 0x81; //读取数据的初始地址 for (i = 0; i < 8; i++){curttime[i] = ReadByte(add); //在此地址读数据并存入数组中 add += 2;}}//每隔5秒轮流显示时间和日期void display(){uchar i,j;//显示时间if (time <= 100){for (i = 0; i < 4; i++){if(j == 8) { j = 0; }ds1 = curttime[i]&0x0f;ds2 = (curttime[i]&0xf0)>>4;P2 = tabwcon[j];P0 = table[ds1];j++;delay(1);P2 = tabwcon[j];P0 = table[ds2];j++;delay(1);}}//显示日期else if(time>=100 && time<=200){for (i = 4; i < 7; i++){if(j == 6) { j = 0; }ds1 = curttime[i]&0x0f;ds2 = (curttime[i]&0xf0)>>4;P2 = tabwcon[j];P0 = table[ds1];j++;delay(1);P2 = tabwcon[j];P0 = table[ds2];j++;delay(1);}}else time = 0; //清零}void init(){TMOD = 0x01; //设置定时器0工作方式TH0 = (65536-50000)/265;TL0 = (65536-50000)%265;IE = 0x82;TR0 = 1;}void main(){init();TimeSet(InitTime);while(1){GetTime(curttime);display();}}void timer() interrupt 1{TH0 = (65536-50000)/265;TL0 = (65536-50000)%265;time++;}。