DS1307时钟模块使用记录

本文主要是介绍DS1307时钟模块使用记录，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

在网上买的一个模块，准备做外部的一个时钟，接入自己其他的项目中，以它的时间为基准，执行每半小时更新时间到其他产品中去

模块采用软件IIC方式读写，需给此模块VCC供5V电压

读写效果如下：

源代码：

DS1307.C

#include "DS1307.h"//写一字节到对应地址去
unsigned char Write1307(unsigned char add, unsigned char dat) 
{unsigned char temp;temp = ((dat / 10) << 4) | (dat % 10);//转BCD码再写入1307IIC_Start();IIC_Send_Byte(0xd0);IIC_Wait_Ack();IIC_Send_Byte(add);IIC_Wait_Ack();IIC_Send_Byte(temp);IIC_Wait_Ack();IIC_Stop();return (0);
}//读一字节
unsigned char Read1307(unsigned char add)
{unsigned char dat;IIC_Start();IIC_Send_Byte(0xD0);IIC_Wait_Ack();IIC_Send_Byte(add);IIC_Wait_Ack();IIC_Stop();IIC_Start();IIC_Send_Byte(0xD1);IIC_Wait_Ack();dat = IIC_Read_Byte(0x00); //地址0x00IIC_NAck();IIC_Stop();return dat;
}//BCD转BIN函数
uint8_t BCD2BIN(char bcd)
{return (0xff & (bcd>>4))*10 +(0xf & bcd);
}//读1307时间，*data：读缓存 ,data_len:缓存长度  ,data_type:0:hex模式   1：dec模式
void Read_1307_time(uint8_t *data,uint8_t data_len,uint8_t data_type)
{if((data_len!=7)){DEBUG_ASP("error -1 +%d\r\n",data_len);return ;}else if(data_type==0)//十六进制格式{data[0] = (Read1307(0x06) & 0xff);//年低2位data[1] = (Read1307(0x05) & 0x1F);//月data[2] =  (Read1307(0x04) & 0x3F);//日data[3] = (Read1307(0x02) & 0x3F);//时data[4] = (Read1307(0x01) & 0x7F);//分data[5] = (Read1307(0x00) & 0x7F);//秒data[6] = (Read1307(0x03) & 0x07);//星期
//    DEBUG_ASP("TIME(Hex): 20%02x-%02x-%02x %02x:%02x:%02x ,%02x\r\n", data[0], data[1], data[2], data[3], data[4], data[5], data[6]);}else//十进制模式{data[0] = BCD2BIN(Read1307(0x06) & 0xff);//年低2位data[1] = BCD2BIN(Read1307(0x05) & 0x1F);//月data[2] =  BCD2BIN(Read1307(0x04) & 0x3F);//日data[3] = BCD2BIN(Read1307(0x02) & 0x3F);//时data[4] = BCD2BIN(Read1307(0x01) & 0x7F);//分data[5] = BCD2BIN(Read1307(0x00) & 0x7F);//秒data[6] = BCD2BIN(Read1307(0x03) & 0x07);//星期
//    DEBUG_ASP("TIME(Dec): 20%02d-%02d-%02d %02d:%02d:%02d T:%02d\r\n", data[0], data[1], data[2], data[3], data[4], data[5], data[6]);}
}//写1307时间，*data：写缓存 ,data_len:缓存长度  ,data_type:0:hex模式   1：dec模式
void Write_1307_time(uint8_t *data,uint8_t data_len,uint8_t data_type)
{ if((data_len!=7)){DEBUG_ASP("error -1 +%d\r\n",data_len);return ;}else if(data_type==0)//十六进制格式{Write1307(0x06, BCD2BIN(data[0]));//年Write1307(0x05, BCD2BIN(data[1]));//月Write1307(0x04, BCD2BIN(data[2]));//日Write1307(0x02, BCD2BIN(data[3]));//时Write1307(0x01, BCD2BIN(data[4]));//分Write1307(0x00, BCD2BIN(data[5]));//秒Write1307(0x03, BCD2BIN(data[6]));//星期}else//十进制模式{Write1307(0x06, data[0]);//年Write1307(0x05, data[1]);//月Write1307(0x04, data[2]);//日Write1307(0x02, data[3]);//时Write1307(0x01, data[4]);//分Write1307(0x00, data[5]);//秒Write1307(0x03, data[6]);//星期}
}void DS1307_init(void)
{IIC_Init(); delay_ms(200);
//  uint8_t tempdata[7]={0x23,0x12,0x07,0x16,0x35,0x20,0x04};
//  Write_1307_time(tempdata,sizeof(tempdata)/sizeof(*(tempdata)),0);
}void DS1207_TEXT(void)
{uint8_t tempdata[7];Read_1307_time(tempdata,sizeof(tempdata)/sizeof(*(tempdata)),0);DEBUG_ASP("TIME0: 20%02x-%02x-%02x %02x:%02x:%02x ,%02x\r\n", tempdata[0], tempdata[1], tempdata[2], tempdata[3], tempdata[4], tempdata[5], tempdata[6]);
}

DS1307.h

#ifndef __DS1307_H__
#define __DS1307_H__
#include "myiic.h"void Read_1307_time(uint8_t *data,uint8_t data_len,uint8_t data_type);
void Write_1307_time(uint8_t *data,uint8_t data_len,uint8_t data_type);
extern void DS1307_init(void);
extern void DS1207_TEXT(void);#endif

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