STM32 ISL1208编程-EDA365

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STM32 ISL1208编程

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//ISL1208.h
#ifndef _ISL1208_H_
#define _ISL1208_H_
#include "stm32f10x.h"
typedef struct My_Time
{
u8 _year;
u8 _month;
u8 _day;
u8 _hour;
u8 _min;
u8 _sec;
u8 _week;
} MY_TIME,*pMY_TIME;
extern MY_TIME sMyTime;
void ISL128Init(void);
void SetTime(pMY_TIME _mytime);
void GetTime(pMY_TIME _mytime);
void Auto_Time_Set(void);
#endif //_ISL1208_H_

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//ISL128.C
#include "isl1208.h"
#include "i2c_ee.h"
const u8 *COMPILED_DATE=__DATE__;//获得编译日期
const u8 *COMPILED_TIME=__TIME__;//获得编译时间
const u8 Month_Tab[12][3]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
u8 const table_week[12]={0,3,3,6,1,4,6,2,5,0,3,5}; //月修正数据表
MY_TIME sMyTime={0x13,0x04,0x13,0x14,0x10,0x05,0x03};
static int IntToBCD(int i);//十进制转BCD
static int BCDToInt(int bcd); //BCD转十进制
static u8 RTC_Get_Week(u16 year,u8 month,u8 day);
int IntToBCD(int i) //十进制转BCD
{
return (((i / 10) <
}
int BCDToInt(int bcd) //BCD转十进制
{
return (0xff & (bcd >> 4)) * 10 + (0xf & bcd);
}
//比较两个字符串指定长度的内容是否相等
//参数:s1,s2要比较的两个字符串;len,比较长度
//返回值:1,相等;0,不相等
u8 my_strcmp(u8*s1,u8*s2,u8 len)
{
u8 i;
for(i=0;i
return 1;
}
void ISL128Init()
{
u8 SR_REG_DATA=0x91;
u8 INT_REG_DATA=0xca;
EEPROM_ADDRESS=ISL1208_ADDRESS;
I2C_EE_ByteWrite(&SR_REG_DATA, 0x07);
I2C_EE_ByteWrite(&INT_REG_DATA, 0x08);
}
void SetTime(pMY_TIME _mytime)
{
EEPROM_ADDRESS=ISL1208_ADDRESS;
I2C_EE_ByteWrite(&_mytime->_sec, 0x00);
I2C_EE_ByteWrite(&_mytime->_min, 0x01);
I2C_EE_ByteWrite(&_mytime->_hour, 0x02);
I2C_EE_ByteWrite(&_mytime->_day, 0x03);
I2C_EE_ByteWrite(&_mytime->_month,0x04);
I2C_EE_ByteWrite(&_mytime->_year, 0x05);
I2C_EE_ByteWrite(&_mytime->_week, 0x06);
}
void GetTime(pMY_TIME _mytime)
{
EEPROM_ADDRESS=ISL1208_ADDRESS;
I2C_EE_BufferRead(&_mytime->_sec, 0x00,1);
I2C_EE_BufferRead(&_mytime->_min, 0x01,1);
I2C_EE_BufferRead(&_mytime->_hour, 0x02,1);
I2C_EE_BufferRead(&_mytime->_day, 0x03,1);
I2C_EE_BufferRead(&_mytime->_month,0x04,1);
I2C_EE_BufferRead(&_mytime->_year, 0x05,1);
I2C_EE_BufferRead(&_mytime->_week, 0x06,1);
_mytime->_sec=BCDToInt(_mytime->_sec);
_mytime->_min=BCDToInt(_mytime->_min);
_mytime->_hour=BCDToInt(_mytime->_hour);
_mytime->_day=BCDToInt(_mytime->_day);
_mytime->_month=BCDToInt(_mytime->_month);
_mytime->_year=BCDToInt(_mytime->_year);
_mytime->_week=BCDToInt(_mytime->_week);
}
void Auto_Time_Set()
{
u8 temp[3];
u8 i;
u8 mon,date,week;
u16 year;
u8 sec,min,hour;
for(i=0;i<3;i++)temp[i]=COMPILED_DATE[i];
for(i=0;i<12;i++)if(my_strcmp((u8*)Month_Tab[i],temp,3))break;
mon=i+1;//得到月份
if(COMPILED_DATE[4]==' ')date=COMPILED_DATE[5]-'0';
else date=10*(COMPILED_DATE[4]-'0')+COMPILED_DATE[5]-'0';
year=10*(COMPILED_DATE[9]-'0')+COMPILED_DATE[10]-'0';
hour=10*(COMPILED_TIME[0]-'0')+COMPILED_TIME[1]-'0';
min=10*(COMPILED_TIME[3]-'0')+COMPILED_TIME[4]-'0';
sec=10*(COMPILED_TIME[6]-'0')+COMPILED_TIME[7]-'0';
week=RTC_Get_Week(year+2000,mon,date);
sMyTime._day=IntToBCD(date);
sMyTime._hour=IntToBCD(hour);
sMyTime._min=IntToBCD(min);
sMyTime._month=IntToBCD(mon);
sMyTime._sec=IntToBCD(sec);
sMyTime._year=IntToBCD(year);
sMyTime._week=IntToBCD(week);
SetTime(&sMyTime);
}
u8 RTC_Get_Week(u16 year,u8 month,u8 day)
{
u16 temp2;
u8 yearH,yearL;
yearH=year/100; yearL=year%100;
// 如果为21世纪,年份数加100
if (yearH>19)yearL+=100;
// 所过闰年数只算1900年之后的
temp2=yearL+yearL/4;
temp2=temp2%7;
temp2=temp2+day+table_week[month-1];
if (yearL%4==0&&month<3)temp2--;
return(temp2%7);
}