1、. /* File name - ds1302.c* Author - By Sam Chan* Version - V1.0* Date - 08 - 23 - 2012* Brief - 時鐘芯片DS1302驅動* Copyright (C) 20* All rights reserved* File Update* Author - By Sam Chan* Date - 10 - 20 - 2013 * Revise - A、增加對STM32控制的移植支持* - B、增加對置的RAM操作相關函數* - C、增加檢測DS1302是否存在，是否第一次上電檢測函數* - D、增加對DS130

2、2置的鋰電池充電存放器參數設置函數和構造體*/#include ds1302.h/*定義變量*/#define Date TimeValue.date#define Min TimeValue.minute#define Sec TimeValue.second#define Hour TimeValue.hour#define Week TimeValue.week#define Month TimeValue.month#define Year TimeValue.yearTime_Typedef TimeValue; /定義時間數據指針void Time_Init()TimeValue.

3、date=24;TimeValue.hour=6;TimeValue.minute=12;TimeValue.month=5;TimeValue.second=0;TimeValue.week=2;TimeValue.year=16;Charge_Typedef ChargeValue; /定義充電存放器/* Function Name - GPIO初始化* Description - none* Input - none* Output - none* Reaturn - none */void DS1302_GPIOInit(void)GPIO_InitTypeDef GPIO_InitS

4、tructure;RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); /開啟GPIOC外設時鐘/* 初始化GPIOC */GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; /推挽輸出GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;GPIO_Init(GPIOC, &GPIO_InitStructure);/* F

5、unction Name - DS1302寫入一個字節數據* Description - none* Input - dat：要寫入的數據* Output - none* Reaturn - none */void DS1302_Write_Byte(u8 dat)u8 i;DS1302_SDA_OUT(); /設置為輸出口for(i=0;i= 1; /數據右移一位DS1302_SCL = 1; /發送數據，上升沿有效/* Function Name - DS1302讀出一個字節數據* Description - none* Input - none* Output - none* Reatu

6、rn - 讀到的數據*/unsigned DS1302_Read_Byte()u8 ReData=0*00;u8 i;DS1302_SDA_IN(); /設置為輸入口for(i=0;i= 1; /數據右移一位，先讀取低位，數據補0DS1302_SCL = 1; /上升沿讀取數據return(ReData); /返回讀取到的數據/* Function Name - 向DS1302*地址寫入數據* Description - none* Input - add：要操作的地址* dat：要寫入的數據* Output - none* Reaturn - none*/void DS1302_Write_

7、Data(u8 add,u8 dat)DS1302_RST = 0; /復位腳拉低DS1302_SCL = 0; /時鐘線拉低DS1302_RST = 1; /復位腳拉高DS1302_Write_Byte(add); /寫入要操作地址DS1302_Write_Byte(dat); /寫入數據/delay_us(5);DS1302_RST = 0;DS1302_SCL = 0;/* Function Name - 從DS1302*地址讀取數據* Description - none* Input - add：要操作的地址* Output - none* Reaturn - 要讀取的存放器的數值*

8、/unsigned DS1302_Read_Data(u8 add)u8 Temp;DS1302_RST = 1;DS1302_Write_Byte(add); /寫入要操作地址Temp = DS1302_Read_Byte(); /開場讀取數據DS1302_RST = 0;return(Temp); /返回讀取到的數據/* Function Name - 主電源對備用電池充電設置* Description - 如果備用電池接的是可充電的鋰電池或者其他可充電電池的時候，* 可以翻開DS1302的充電電路，利用主供電對電池進展充電，免的換電池的麻煩* Input - *CHG_dat：存放器控制

9、指針* Output - none* Reaturn - none*/void DS1302_Charge_Manage(Charge_Typedef* CHG_dat)u8 CHG_Value;CHG_Value = (CHG_dat-TCS* DS* RS*; DS1302_WP_Disable(); /取消寫保護DS1302_Write_Data(Trickle_Charger_Address,CHG_Value);DS1302_WP_Enable(); /翻開寫保護/* Function Name - DS1302置的RAM讀寫操作* Description - none* Input

10、 - *pBuff：讀寫數據存放區* WRadd：讀寫起始地址，圍在RAM_Address0 RAM_Address28之間，最后一位地址有其他用途* num：讀寫字節數據的數量，圍在1 28之間* RW：讀寫判斷位。0*00為寫操作，0*01為讀操作* Output - none* Reaturn - none*/void DS1302_RAM_WriteRead_Data(u8* pBuff,u8 WRadd,u8 num,u8 RW) u8 i; if(WRadd = RAM_Address29) return; /要寫入數據的RAM地址是最后一個，直接退出/因為最后一個字節是用來檢測D

11、S1302的if(RW = 0*00) /寫數據操作for(i = 0;i num;i+)DS1302_WP_Disable(); /取消寫保護DS1302_Write_Data(WRadd+(i1),pBuffi);DS1302_WP_Enable(); /翻開寫保護elsefor(i = 0;i num;i+)DS1302_WP_Disable(); /取消寫保護pBuffi = DS1302_Read_Data(WRadd+1+(i 測試設備好壞* Description - 在DS1302芯片的RAM的最后一個地址寫入一個數據并讀出來判斷* 與上次寫入的值相等，不是第一次上電，否則則初

12、始化時間* Input - none* Output - none* Reaturn - 0：設備正常并不是第一次上電* 1：設備錯誤或者已損壞*/u8 DS1302_Check(void)u8 test_value;DS1302_WP_Disable(); /取消寫保護test_value = DS1302_Read_Data(RAM_Address29 + 1); /讀出最后一個RAM地址里的數據DS1302_WP_Enable(); /翻開寫保護if(test_value = test_data) /判斷數據是否對return 0; /設備正常，不是第一次上電elsereturn 1;

13、/不是第一次上電或者設備異常/ DS1302_WP_Disable(); /取消寫保護/ DS1302_Write_Data(RAM_Address29,0*55); /向RAM最后一個地址里寫入數據/ DS1302_WP_Enable(); /翻開寫保護/ / _nop_();_nop_();/ / DS1302_WP_Disable(); /取消寫保護/ test_value = DS1302_Read_Data(RAM_Address29 + 1); /讀出最后一個RAM地址里的數據/ DS1302_WP_Enable(); /翻開寫保護/ / if(test_value = test_

14、data) return 0; /設備正常，不是第一次上電/ return 1; /設備不在線或者已損壞/* Function Name - DS1302初始化* Description - none* Input - *Time: 時間構造體指針* Output - none* Reaturn - none*/void DS1302_Init(Time_Typedef* Time) DS1302_RST = 0;DS1302_SCL = 0;DS1302_WP_Disable(); /取消寫保護DS1302_Write_Data(Address_year,(Time-year)/10)yea

15、r)%10); /寫年數據delay_us(3);DS1302_Write_Data(Address_week,(Time-week)/10)week)%10); /寫星期數據delay_us(3);DS1302_Write_Data(Address_month,(Time-month)/10)month)%10);/寫月數據delay_us(3);DS1302_Write_Data(Address_date,(Time-date)/10)date)%10); /寫日數據delay_us(3);DS1302_Write_Data(Address_hour,(Time-hour)/10)hour

16、)%10); /寫小時數據delay_us(3);DS1302_Write_Data(Address_minute,(Time-minute)/10)minute)%10); /寫分鐘數據delay_us(3);DS1302_Write_Data(Address_second ,(Time-second)/10)second)%10); /寫秒數據并使時鐘運行delay_us(3);DS1302_WP_Enable(); /翻開寫保護DS1302_WP_Disable(); /取消寫保護DS1302_Write_Data(RAM_Address29,test_data); /向RAM最后一個地

17、址里寫入數據DS1302_WP_Enable(); /翻開寫保護mw_shl_code=c,true#include led.h#include delay.h#include sys.h#include ds1302.h#include usart.h#define Date TimeValue.date#define Min TimeValue.minute#define Sec TimeValue.second#define Hour TimeValue.hour#define Week TimeValue.week#define Month TimeValue.month#define

18、 Year TimeValue.yearint main()Time_Typedef TimeValue;delay_init();LED_Init();uart_init(115200);DS1302_GPIOInit();DS1302_Init(&TimeValue);while(1)Sec=(DS1302_Read_Data(Address_second|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Min=(DS1302_Read_Data(Address_second|0*01)&0*0f+(D

19、S1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Hour=(DS1302_Read_Data(Address_second|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Date=(DS1302_Read_Data(Address_second|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Month=(DS1302_Read_Data(Address_s

20、econd|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Week=(DS1302_Read_Data(Address_second|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);Year=(DS1302_Read_Data(Address_second|0*01)&0*0f+(DS1302_Read_Data(Address_second|0*01)4)*10);delay_us(3);printf(%d年%d月%

21、d日%d:%d:%d 星期%drn,Year,Month,Date,Hour,Min,Sec,Week);delay_ms(300);C 純文本查看復制代碼001002003004005006007008009010011012013014015016017018019020021022023024025026027028029030031032033034035036037038039040041042043044045046047048049050051052053054055056057058059060061062063064065066067068069070071072073074

22、075076077078079080081082083084085086087088089090091092093094095096097098099100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174

23、175176177178179180181182183184185186187188189190191192193/* File name - ds1302.h* Author - By Sam Chan* Version - V1.0* Date - 08 - 23 - 2012* Brief - 時鐘芯片DS1302驅動* Copyright (C) 20* All rights reserved* File Update* Author - By Sam Chan* Date - 10 - 20 - 2013 * Revise - A、增加對STM32控制的移植支持* - B、增加對置的RAM操作相關函數* - C、增加檢測DS1302是否存在，是否第一次上電檢測函數* - D、增加對DS1302置的鋰電池充電存放器參數設置函數和構造體*/#ifndef _ds1302_h_ #define _ds1302_h_/*外部函數頭文件*/#include sys.h#include delay.h/*定義接口所接的IO不一樣請修改這里設置IO的方向請修改這里，對于不是具有準雙向IO的MCU*/#define DS1302_SDA_IN() GPIOC-CRL &= 0*