ht1380.c

93cxx读写驱动程序.51单片机的驱动程序

#include "zhaobin.h"

unsigned char read_time ( unsigned char temp ) 
  {
   unsigned char xx;
   unsigned char  temp_1,temp_0;
   temp_0=temp; 
   reset_time=0;   clk_time=0;   _nop_ ();  _nop_ ();
   reset_time=1;
   for (xx=0; xx<8; xx++)
   {
    temp_1=temp_0&0x01;
    if (temp_1==0x01)  di_time=1;
    else  di_time=0;
    _nop_ ();  clk_time=1;  _nop_ ();  _nop_ ();  clk_time=0;
	temp_0=temp_0>>1;
   }

   di_time=1;   a0=di_time;

//   clk_time=1;  _nop_ ();    clk_time=0;  a0=di_time; _nop_ ();

   clk_time=1;  _nop_ ();    clk_time=0;  a1=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a2=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a3=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a4=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a5=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a6=di_time; _nop_ ();
   clk_time=1;  _nop_ ();    clk_time=0;  a7=di_time; _nop_ ();
   reset_time=0;     _nop_ ();
   return (ACC);
  }



void write_time ( unsigned int temp )
{
  unsigned char mm;
  unsigned int temp_1,temp_0;
  temp_0=temp;
   reset_time=0;   clk_time=0;   _nop_ ();  _nop_ ();
   reset_time=1;
  for (mm=0; mm<16; mm++)
   {
    temp_1=temp_0&0x0001;
    if (temp_1==0x0001)  di_time=1;
    else  di_time=0;
    _nop_ ();  clk_time=1;  _nop_ ();  _nop_ ();  clk_time=0;
	temp_0=temp_0>>1;
   }
  reset_time=0;     _nop_ ();
}

   void init_ht1380 (void)
{
   unsigned char reg_data;
   unsigned int  temp;
   write_time (0x008e);          //enable writed
   reg_data=read_time (0x81);
   temp=reg_data*256|0x0080;
   temp=temp&0x7fff;
   write_time (temp);            //enable  oscillator
   reg_data=read_time (0x85);
   temp=reg_data*256|0x0084;
   temp=temp&0x7fff;
   write_time (temp);            //hour setup 24
}

  unsigned char read_sec (void)
{
  unsigned char temp;
  temp=read_time (0x81);
  return (temp);
}

  unsigned char read_min (void)
{
  unsigned char temp;
  temp=read_time (0x83);
  return (temp);
}

  unsigned char read_hour (void)
{
  unsigned char temp;
  temp=read_time (0x85);
  return (temp);
}

  unsigned char read_date (void)
{
  unsigned char temp;
  temp=read_time (0x87);
  return (temp);
}

  unsigned char read_month (void)
{
  unsigned char temp;
  temp=read_time (0x89);
  return (temp);
}

  unsigned char read_day (void)
{
  unsigned char temp;
  temp=read_time (0x8b);
  return (temp);
}

  unsigned char read_year (void)
{
  unsigned char temp;
  temp=read_time (0x8d);
  return (temp);
}