Linux时间戳转换成BCD码（转载）

 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
 #include <math.h>
 /***************************************************************************
 *函数名称：Char2Bcd
 *函数介绍：字符串转BCD
 *输入参数：-buf:指向字符串
 *输出参数：无
 *返回值  ：转换后的双精度值
 *修改历史：
 ***************************************************************************/
 char Char2Bcd(char i_cHexData)
 {
    char i;
    i=((i_cHexData%)/)*+(i_cHexData%);
    return i;
 }

 /***************************************************************************
 *函数名称：Get_BCDTime7
 *函数介绍：转换为BCD码格式时间
 *输入参数：-*time:
 *输出参数：无
 *返回值  ：无
 *修改历史：
 ***************************************************************************/
 void Get_BCDTime7(time_t i_tTime,char* o_cpBcdTime)
 {
     struct tm *time;
     time=localtime(&i_tTime);
     o_cpBcdTime[]=Char2Bcd((time->tm_year+)/);
     o_cpBcdTime[]=Char2Bcd((time->tm_year+)%);
     o_cpBcdTime[]=Char2Bcd(time->tm_mon+);
     o_cpBcdTime[]=Char2Bcd(time->tm_mday);
     o_cpBcdTime[]=Char2Bcd(time->tm_hour);
     o_cpBcdTime[]=Char2Bcd(time->tm_min);
     o_cpBcdTime[]=Char2Bcd(time->tm_sec);
 }

 /***************************************************************************
 *函数名称：Get_CurBCDTime6
 *函数介绍：转换为BCD码格式时间
 *输入参数：-*time:
 *输出参数：无
 *返回值  ：无
 *修改历史：
 ***************************************************************************/
 void Get_BCDTime6(time_t i_tTime,char* o_cpBcdTime)
 {
     struct tm *time;
     time=localtime(&i_tTime);
     o_cpBcdTime[]=(unsigned char)((((time->tm_year-)/)<<)|((time->tm_year-)%));
     o_cpBcdTime[]=(unsigned char)((((+time->tm_mon)/)<<)|((+time->tm_mon)%));
     o_cpBcdTime[]=(unsigned char)((((time->tm_mday)/)<<)|((time->tm_mday)%));
     o_cpBcdTime[]=(unsigned char)((((time->tm_hour)/)<<)|((time->tm_hour)%));
     o_cpBcdTime[]=(unsigned char)((((time->tm_min)/)<<)|((time->tm_min)%));
     o_cpBcdTime[]=(unsigned char)((((time->tm_sec)/)<<)|((time->tm_sec)%));
 }

 /***************************************************************************
 *函数名称：Get_CurBCDTime6
 *函数介绍：获取当前BCD码格式时间
 *输入参数：-*time:
 *输出参数：无
 *返回值  ：无
 *修改历史：add by lianzihao 2016-09-13
 ***************************************************************************/
 void Get_CurBCDTime6(char* o_cpBcdTime)
 {
         time_t lt=;
         lt = time(NULL);
         struct tm * pCurTime = localtime(&lt);
         o_cpBcdTime[]=(unsigned char)((((pCurTime->tm_year-)/)<<)|((pCurTime->tm_year-)%));
         o_cpBcdTime[]=(unsigned char)((((+pCurTime->tm_mon)/)<<)|((+pCurTime->tm_mon)%));
         o_cpBcdTime[]=(unsigned char)((((pCurTime->tm_mday)/)<<)|((pCurTime->tm_mday)%));
         o_cpBcdTime[]=(unsigned char)((((pCurTime->tm_hour)/)<<)|((pCurTime->tm_hour)%));
         o_cpBcdTime[]=(unsigned char)((((pCurTime->tm_min)/)<<)|((pCurTime->tm_min)%));
         o_cpBcdTime[]=(unsigned char)((((pCurTime->tm_sec)/)<<)|((pCurTime->tm_sec)%));
 }
 /***************************************************************************
 *函数名称：Get_CurBCDTime7
 *函数介绍：获取当前BCD码格式时间
 *输入参数：-*time:
 *输出参数：无
 *返回值  ：无
 *修改历史：
 ***************************************************************************/
 void Get_CurBCDTime7(char* o_cpBcdTime)
 {
     time_t tt;
     struct tm *curtime;
     time(&tt);
     curtime=localtime(&tt);
     o_cpBcdTime[]=Char2Bcd((curtime->tm_year+)/);
     o_cpBcdTime[]=Char2Bcd((curtime->tm_year+)%);
     o_cpBcdTime[]=Char2Bcd(curtime->tm_mon+);
     o_cpBcdTime[]=Char2Bcd(curtime->tm_mday);
     o_cpBcdTime[]=Char2Bcd(curtime->tm_hour);
     o_cpBcdTime[]=Char2Bcd(curtime->tm_min);
     o_cpBcdTime[]=Char2Bcd(curtime->tm_sec);
 }

 #define LEN        7
 int main(void)
 {
     int i = ;
     char l_arrBcdtime[LEN] ={};
     Get_CurBCDTime7(l_arrBcdtime);
     printf("Get_CurBCDTime7 :");
     for(i=;i<LEN;i++)
     {
         printf("%02x",l_arrBcdtime[i]);
     }

     Get_CurBCDTime6(l_arrBcdtime);

     printf("\nGet_CurBCDTime6 :");
     for(i=;i<LEN-;i++)
     {
         printf("%02x",l_arrBcdtime[i]);
     }
     printf("\n");
     return ;
 }

运行结果：

注：原文链接：https://blog.csdn.net/li_wen01/article/details/78990124