[求助] DS1302不走了

chenbingjy 2017-11-28 18:36 楼主

上程序：
#include "ds1302.h"
//#include "delay.h"

//3õê¼»ˉê±¼ä¶¨òå
u8 time_buf[8] = {0x20,0x17,0x01,0x01,0x23,0x59,0x55,0x02}; //3õê¼ê±¼ä2010Äê6ÔÂ1oÅ23μã59·Ö55Ãë DÇÆú¶t
extern u8 Year,Mon,Day,Hour,Min,Sec;

void delay_us(unsigned int x)
{
      unsigned int i,j;
      for(i=0;i             for(j=0;j<20;j++);
}
//DS13023õê¼»ˉ
void DS1302_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);

      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 |GPIO_Pin_6;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOA, &GPIO_InitStructure);

      GPIO_SetBits(GPIOA, GPIO_Pin_4);                //PA4à-¸ß
      GPIO_ResetBits(GPIOA, GPIO_Pin_5 | GPIO_Pin_6); //PA5￡¬PA6ÖÃμí
}

//ÏòDS1302D′èëò»¸ö×Ö½úêy¾Y
void DS1302_Write_Byte(u8 addr, u8 data)
{
  u8 i;
      DS1302_RST_L;    //í￡Ö1DS1302×üÏß
      delay_us(10);
      DS1302_RST_H;    //Æô¶ˉDS1302×üÏß
      addr = addr & 0xFE;  //×îμíÎ»ÖÃáã￡¬D′êy¾Y
      DS1302_IO_OUT();
      for(i = 0; i < 8; i ++)  //D′μØÖ·
      {
      if (addr & 0x01)
                     DS1302_DATA_OUT_H;
            else
                     DS1302_DATA_OUT_L;

            DS1302_SCK_H; //2úéúê±Öó
            delay_us(10);
            DS1302_SCK_L;
            addr = addr>>1;
      }
      for (i = 0; i < 8; i ++) //D′êy¾Y
      {
      if(data & 0x01)
                     DS1302_DATA_OUT_H;
            else
                     DS1302_DATA_OUT_L;

            DS1302_SCK_H; //2úéúê±Öó
            delay_us(10);
            DS1302_SCK_L;
      data = data>>1;
      }
      DS1302_RST_L;    //í￡Ö1DS1302×üÏß
}

//′óDS1302¶á3öò»¸ö×Ö½úêy¾Y
u8 DS1302_Read_Byte(u8 addr)
{
  u8 i,temp;
      DS1302_RST_L;    //í￡Ö1DS1302×üÏß
      delay_us(10);
      DS1302_RST_H;    //Æô¶ˉDS1302×üÏß
      addr = addr | 0x01;  //×îμíÎ»ÖÃ¸ß￡¬¶áêy¾Y
      DS1302_IO_OUT();
      for(i = 0; i < 8; i ++)  //D′μØÖ·
      {
      if (addr & 0x01)
                     DS1302_DATA_OUT_H;
            else
                     DS1302_DATA_OUT_L;

            DS1302_SCK_H; //2úéúê±Öó
            delay_us(10);
            DS1302_SCK_L;
            addr = addr>>1;
      }
      DS1302_IO_IN();
      for (i = 0; i < 8; i ++) //¶áêy¾Y
      {
      temp = temp >> 1;
            if(DS1302_DATA_IN==1)
                     temp |= 0x80;
            else
                     temp &= 0x7F;

            DS1302_SCK_H; //2úéúê±Öó
            delay_us(10);
            DS1302_SCK_L;
      }
      DS1302_RST_L;    //í￡Ö1DS1302×üÏß
      return temp;
}

//ÏòDS1302D′èëê±¼äêy¾Y
void DS1302_Write_Time(void)
{
  DS1302_Write_Byte(ds1302_control_add, 0x00);    //1Ø±ÕD′±￡»¤
  DS1302_Write_Byte(ds1302_sec_add, 0x80);       //ÔYí￡ê±Öó
      //DS1302_Write_Byte(ds1302_charger_add, 0xA9);    //ä¸á÷3äμç
      DS1302_Write_Byte(ds1302_year_add,time_buf[1]);             //Äê
      DS1302_Write_Byte(ds1302_month_add,time_buf[2]);       //ÔÂ
      DS1302_Write_Byte(ds1302_date_add,time_buf[3]);             //èÕ
      DS1302_Write_Byte(ds1302_hr_add,time_buf[4]);                //ê±
      DS1302_Write_Byte(ds1302_min_add,time_buf[5]);             //·Ö
      DS1302_Write_Byte(ds1302_sec_add,time_buf[6]);             //Ãë
      DS1302_Write_Byte(ds1302_day_add,time_buf[7]);             //Öü
      DS1302_Write_Byte(ds1302_control_add,0x80);                   //′ò¿aD′±￡»¤
}
//ÏòDS1302D′èëèÕÆúêy¾Y
void DS1302_Write_Date(void)
{
      Year=((Year/10)<<4)+((Year%10)&0x0f);
      Mon=((Mon/10)<<4)+((Mon%10)&0x0f);
      Day=((Day/10)<<4)+((Day%10)&0x0f);
      Hour=((Hour/10)<<4)+((Hour%10)&0x0f);
      Min=((Min/10)<<4)+((Min%10)&0x0f);
      Sec=((Sec/10)<<4)+((Sec%10)&0x0f);
  DS1302_Write_Byte(ds1302_control_add, 0x00);    //1Ø±ÕD′±￡»¤
  DS1302_Write_Byte(ds1302_sec_add, 0x80);       //ÔYí￡ê±Öó
      //DS1302_Write_Byte(ds1302_charger_add, 0xA9);    //ä¸á÷3äμç
      DS1302_Write_Byte(ds1302_year_add,Year);             //Äê
      DS1302_Write_Byte(ds1302_month_add,Mon);       //ÔÂ
      DS1302_Write_Byte(ds1302_date_add,Day);             //èÕ
      DS1302_Write_Byte(ds1302_hr_add,Hour);                //ê±
      DS1302_Write_Byte(ds1302_min_add,Min);             //·Ö
      DS1302_Write_Byte(ds1302_sec_add,Sec);             //Ãë
      DS1302_Write_Byte(ds1302_day_add,time_buf[7]);             //Öü
      DS1302_Write_Byte(ds1302_control_add,0x80);                   //′ò¿aD′±￡»¤
}
//′óDS302¶á3öê±Öóêy¾Y
void DS1302_Read_Time(void)
{
      time_buf[1] = DS1302_Read_Byte(ds1302_year_add);                //Äê
      time_buf[2] = DS1302_Read_Byte(ds1302_month_add);                //ÔÂ
      time_buf[3] = DS1302_Read_Byte(ds1302_date_add);                //èÕ
      time_buf[4] = DS1302_Read_Byte(ds1302_hr_add);                   //ê±
      time_buf[5] = DS1302_Read_Byte(ds1302_min_add);                   //·Ö
      time_buf[6] = (DS1302_Read_Byte(ds1302_sec_add))&0x7f; //Ãë￡¬Æá±ÎÃëμÄμú7Î»￡¬±üÃa3¬3ö59
      time_buf[7] = DS1302_Read_Byte(ds1302_day_add);                   //Öü
}

//DS1302ÏòéÏ2ã·μ»Øê±¼äêy¾Y
void DS1302_Get_Time(u8 *time)
{
      DS1302_Read_Time();
      time[0]=(time_buf[0]>>4); //Äê
  time[1]=(time_buf[0]&0x0f);

  time[2]=(time_buf[1]>>4);
  time[3]=(time_buf[1]&0x0f);

  time[4]=(time_buf[2]>>4); //ÔÂ
  time[5]=(time_buf[2]&0x0f);

  time[6]=(time_buf[3]>>4); //èÕ
  time[7]=(time_buf[3]&0x0f);

  time[8]=(time_buf[7]&0x07); //DÇÆú

  time[9]=(time_buf[4]>>4); //ê±
  time[10]=(time_buf[4]&0x0f);

  time[11]=(time_buf[5]>>4);  //·Ö
  time[12]=(time_buf[5]&0x0f);

  time[13]=(time_buf[6]>>4);  //Ãë
  time[14]=(time_buf[6]&0x0f);
}

原来走的，后来用DS1302_Write_Date(）这个程序设置了一下，就不走了。

用DS1302_Write_Time(）再设置也不行。高手支招，谢谢！

为江山踏坏了乌骓马，为社稷拉断了宝雕弓。