原创 【原创】stm32f的ht1380日历芯片驱动

ht1380和ds1302的时序基本一样,送给和我一样不太愿意用rtc的朋友！
#include "ht1380.h"
GPIO_InitTypeDef GPIO_InitStructure;

unsigned char week ;//?ü

void HT1380_write(unsigned char data);
int HT1380_read(void);
void dly_HT1380(void);

/*************?ìê±???óê±***********************************/
void dly_HT1380(void)
{
    unsigned long i ;
    for(i = 32;i > 0;i--); 
}

/*************?òHT1380?DD′ò???×??ú*************************/
void HT1380_write(unsigned char data)
{
    unsigned char i="0";
    clr_HT1380_io();
    for(i=8;i>0;i--)
    {
        dly_HT1380();
        if(data&0x01)
        {
            set_HT1380_io();
        }
        dly_HT1380();
        set_HT1380_sclk();
        dly_HT1380(); 
        clr_HT1380_sclk();
        dly_HT1380(); 
        clr_HT1380_io();
        data>>=1;
    }
}

/************************************************************
oˉêy1|?ü￡o′óHT1380?D?áò???×??ú
ê?è?2?êy￡o?T
·μ??2?êy￡odata
*************************************************************/
int HT1380_read(void)
{
    unsigned char data="0";
    unsigned char i="0";
    set_HT1380_io();
    for(i=8;i>0;i--)
    {
        set_HT1380_sclk();
        dly_HT1380();
        data>>=1;     
        if(in_HT1380_io())
        {
            data |= 0x80;
        }
        else
        {
            data &= 0x07f;
        }
        clr_HT1380_sclk();
        dly_HT1380();
    }  
    return(data);   
}

/**********′óHT1380?D?áè??úoíê±??******************************/
void HT1380_read_time(void)
{
    clr_HT1380_rst();
    dly_HT1380();
    set_HT1380_rst(); //
    dly_HT1380();
    clr_HT1380_sclk();
    dly_HT1380();
    HT1380_write(0xbf); 
    dly_HT1380();

    second="HT1380"_read(); //??
    minute="HT1380"_read(); //·?
    hour="HT1380"_read(); //ê±
    day="HT1380"_read(); //è?
    month="HT1380"_read();//??
    week="HT1380"_read(); //?ü
    year="HT1380"_read(); //?ê
    dly_HT1380();
    clr_HT1380_rst();
}
/**********?òHT1380D′è??úoíê±??******************************/
void HT1380_write_time(void)
{
    clr_HT1380_rst();
    dly_HT1380();
    set_HT1380_rst(); //
    dly_HT1380();
    clr_HT1380_sclk();
    dly_HT1380();
    HT1380_write(0x8e);
    HT1380_write(0x00);  
    dly_HT1380();
    clr_HT1380_rst();
    dly_HT1380();
    set_HT1380_rst(); //
    HT1380_write(0x80);
    HT1380_write(0x00);
    dly_HT1380();
    clr_HT1380_rst();
    dly_HT1380();
    set_HT1380_rst(); //
    HT1380_write(0xbe);
    HT1380_write(second); // ??
    HT1380_write(minute); //·?
    HT1380_write(hour); //ê±
    HT1380_write(day); //è?
    HT1380_write(month); //??
    HT1380_write(week); //?ü
    HT1380_write(year); //?ê
    HT1380_write(0x00);  
    dly_HT1380();
    clr_HT1380_rst();
}