新聞中心
        
	
        
	
        
	
        EEPW首頁 
	 > 嵌入式系統 > 設計應用 > stm32控制DS1302
        
    
        

        

        


	
	
	

        
	
        
		
        
			
        stm32控制DS1302
        
						
        
				作者：
				時間：2016-12-03
				來源：網絡

							
				
				
				
				收藏
			
        

			
        
				
				
			
        

			
        
			
			
        
			
			
        
				
				
			
        
                
			在ds1302.h文件中:
        #ifndef _STM32F103_DS1302_H_
        #define _STM32F103_DS1302_H_


        //*****************DS1302控制命令*******************
        #define RdSec 0x81
        #define RdMin 0x83
        #define RdHour 0x85
        #define RdDate 0x87
        #define RdMonth 0x89
        #define RdWeek 0x8b
        #define RdYear 0x8d
        #define RdControl 0x8f
        #define RdTrickleCharge 0x91
        #define RdClockBurst 0xbf
        #define WrSec 0x80
        #define WrMin 0x82
        #define WrHour 0x84
        #define WrDate 0x86
        #define WrMonth 0x88
        #define WrWeek 0x8a
        #define WrYear 0x8c
        #define WrControl 0x8e
        #define WrTrickleCharge 0x90
        #define WrClockBurst 0xbe
        //添加的信息
        #define RdRamBurst 0xbf


        //相對應的IO口配置

        #define DS1302_PORT GPIOE

        #define DS1302_SCK_PIN GPIO_Pin_9 //對應的IO口
        #define DS1302_IO_PIN GPIO_Pin_10
        #define DS1302_CE_PIN GPIO_Pin_11



        #define DS1302_CLRSCK() (GPIO_ResetBits(GPIOE, GPIO_Pin_9)) //寄存器IO口操作狀態
        #define DS1302_SETSCK() (GPIO_SetBits(GPIOE, GPIO_Pin_9))

        #define DS1302_CLRIO() (GPIO_ResetBits(GPIOE, GPIO_Pin_10) )
        #define DS1302_SETIO() (GPIO_SetBits(GPIOE, GPIO_Pin_10) )

        #define DS1302_CLRCE() (GPIO_ResetBits(GPIOE, GPIO_Pin_11))
        #define DS1302_SETCE() (GPIO_SetBits(GPIOE, GPIO_Pin_11))


        void DS1302_IO_OUT(void );
        void DS1302_IO_IN( void);


        //#define DS1302_IO_IN() DS1302_IO_IN() //操作輸入輸出狀態
        //#define DS1302_IO_OUT() DS1302_IO_OUT()

        #define DS1302_READ_SDA() (GPIO_ReadInputDataBit(DS1302_PORT, DS1302_IO_PIN))



        //定義時間結構體
        //typedef struct
        //{
        // unsigned char year;
        // unsigned char month;
        // unsigned char date;
        // unsigned char week;
        // unsigned char hour;
        // unsigned char min;
        // unsigned char sec;
        //}TIME_TypeDef;

        typedef struct
        {
        unsigned char sec;
        unsigned char min;
        unsigned char hour;
        unsigned char week;
        unsigned char date;
        unsigned char month;
        unsigned char year;
        }TIME_TypeDef;


        //內部函數
        void DS1302_Write8bit(unsigned char code);
        unsigned char DS1302_Read8bit(void);
        //外部函數
        extern void ds1302_init (void);
        extern unsigned char DS1302_ReadByte(unsigned char con);
        extern void DS1302_WriteByte(unsigned char con,unsigned char code);

        extern void DS1302_WriteTime(TIME_TypeDef* time);
        extern void DS1302_ReadTime(TIME_TypeDef* time);


        void time_convert(TIME_TypeDef *time_get);

        #endif
        本文引用地址：http://www.104case.com/article/201612/325184.htm
        在ds1302.c文件中:
        /********************************copyright ythuitong by wit_yuan**************************/

        #include "bsp.h"

        //////////////////////////////////////////////////////////////////////////
        // 函數名 : ds1302_init
        // 功能 : ds1302初始化部分
        // 參數 : void
        // 作者 : wit_yuan
        // 時間 : 2014-08-08
        ////////////////////////////////////////////////////////////////////////////
        void ds1302_init(void)
        {
        GPIO_InitTypeDef GPIO_InitStructure;

        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE );
        GPIO_InitStructure.GPIO_Pin = (DS1302_SCK_PIN | DS1302_IO_PIN | DS1302_CE_PIN);
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP ;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(DS1302_PORT, &GPIO_InitStructure);

        DS1302_WriteByte(WrControl,0x00); //關閉寫保護，可以寫入數據了

        Delay_10us(10);
        // if(DS1302_ReadByte(RdTrickleCharge) != 0xA6)
        // {
        // Delay_10us(10);
        // DS1302_WriteByte(WrTrickleCharge,0xA6);
        //
        // printf("進入rn");
        // }
        Delay_10us(10);
        DS1302_WriteByte(WrControl,0x80); //開啟寫保護，禁止寫入數據
        }


        void DS1302_IO_OUT()
        {
        GPIO_InitTypeDef GPIO_InitStructure;
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

        GPIO_Init(GPIOE, &GPIO_InitStructure);
        }

        void DS1302_IO_IN()
        {
        GPIO_InitTypeDef GPIO_InitStructure;
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;

        GPIO_Init(GPIOE, &GPIO_InitStructure);
        }



        //DS1302寫入8bit
        void DS1302_Write8bit(unsigned char code)
        {
        unsigned char i;
        DS1302_IO_OUT(); //輸出模式
        DS1302_CLRSCK(); //SCK = 0
        for(i=0;i<8;i++)
        {
        Delay_10us(5);
        if(code&0x01)
        (DS1302_SETIO()); //I/0 = 1
        else
        (DS1302_CLRIO()); //I/0 = 0
        Delay_10us(5);

        DS1302_SETSCK(); //SCLK = 1
        Delay_10us(5);

        DS1302_CLRSCK(); //SCLK = 0
        code = code >> 1;
        }
        }

        //DS1302讀取8bit的數據
        unsigned char DS1302_Read8bit(void)
        {
        unsigned char i,code;
        unsigned char temp;
        DS1302_IO_IN();
        code = 0;
        DS1302_CLRSCK(); //SCLK = 0

        Delay_10us(5);

        for(i=0;i<8;i++)
        {

        code = code >>1;

        if(DS1302_READ_SDA())
        {
        code = code | 0x80;
        }



        Delay_10us(5);
        DS1302_SETSCK(); //SCLK = 1
        Delay_10us(5);

        DS1302_CLRSCK(); //SCLK = 0

        }

        temp = code /16;
        code = code % 16;
        code = code + temp * 10; //數據的相關轉換

        return code;
        }



        //讀取DS1302指定的1Byte
        unsigned char DS1302_ReadByte(unsigned char con)
        {
        unsigned char code;
        DS1302_CLRCE(); //關閉DS1302 //CE = 0
        Delay_10us(5);
        DS1302_CLRSCK(); //SCLK = 0
        Delay_10us(5);
        DS1302_SETCE(); //使能DS1302 //CE = 1;
        Delay_10us(5);
        DS1302_Write8bit(con); //讀取代碼 //發送地址
        code = DS1302_Read8bit(); //返回讀取數字

        //printf("code = %drn" ,code );
        Delay_10us(5);
        DS1302_SETSCK(); //SCLK = 1
        Delay_10us(5);
        DS1302_CLRCE(); //關閉DS1302 //CE = 0
        return code;
        }


        //u8 DS1302_ReadRam(u8 addr)
        //{
        // u8 tmp,res;
        //
        // tmp = addr;
        // res = DS1302_ReadByte(tmp);
        // return(res);
        //}

        ////連續讀取DS1302所有數據
        //void DS1302_ReadBurst(unsigned char *rstr)
        //{
        // int i = 0;
        // unsigned char code;
        // DS1302_CLRCE(); //關閉DS1302 //CE = 0
        // Delay_10us(5);
        // DS1302_CLRSCK(); //SCLK = 0
        // Delay_10us(5);
        // DS1302_SETCE(); //使能DS1302 //CE = 1;
        // Delay_10us(5);
        // DS1302_Write8bit(RdRamBurst); //讀取代碼 //發送地址
        //
        // for(i = 0 ;i < 31 ; i++)
        // {
        // rstr[i] = DS1302_ReadRam(2 * i + 1 + 0xc0); //返回讀取數字
        // }
        //
        // //printf("code = %drn" ,code );
        // Delay_10us(5);
        // DS1302_SETSCK(); //SCLK = 1
        // Delay_10us(5);
        // DS1302_CLRCE(); //關閉DS1302 //CE = 0
        //
        // for(i = 0 ;i < 31 ; i ++)
        // {
        // printf("rstr[%d] = %drn",i,rstr[i]);
        // }
        //
        //}





        //寫DS1302指定的1Byte
        void DS1302_WriteByte(unsigned char con,unsigned char code)
        {
        DS1302_CLRCE(); //關閉DS1302 //CE = 0
        Delay_10us(5);
        DS1302_CLRSCK(); //SCK = 0
        Delay_10us(5);

        DS1302_SETCE(); //使能DS1302 //CE = 1
        Delay_10us(5);
        DS1302_Write8bit(con); //寫控制命令 //發送地址
        DS1302_Write8bit(code); //寫入數據 //發送數據
        Delay_10us(5);
        DS1302_SETSCK();
        Delay_10us(5);
        DS1302_CLRCE(); //關閉DS1302

        }


        //寫入時間
        void DS1302_WriteTime(TIME_TypeDef* time)
        {
        DS1302_WriteByte(WrControl,0x00); //關閉寫保護，可以寫入數據

        DS1302_WriteByte(WrYear,time->year);
        DS1302_WriteByte(WrMonth,time->month);
        DS1302_WriteByte(WrDate,time->date);
        DS1302_WriteByte(WrWeek,time->week);
        DS1302_WriteByte(WrHour,time->hour);
        DS1302_WriteByte(WrMin,time->min);
        DS1302_WriteByte(WrSec,time->sec);

        DS1302_WriteByte(WrControl,0x80); //開啟寫保護，禁止寫入數據

        }

        u8 DS1302_ReadRam(u8 addr)
        {
        u8 tmp,res;

        tmp = addr;
        res = DS1302_ReadByte(tmp);
        return(res);
        }

        typedef struct
        {
        unsigned char sec;
        unsigned char min;
        unsigned char hour;
        unsigned char date;
        unsigned char month;
        unsigned char week;
        unsigned char year;
        }Time;








        //連續讀取DS1302所有數據
        void DS1302_ReadBurst(unsigned char *rstr)
        {
        int i = 0;
        unsigned char code;
        DS1302_CLRCE(); //關閉DS1302 //CE = 0
        Delay_10us(5);
        DS1302_CLRSCK(); //SCLK = 0
        Delay_10us(5);
        DS1302_SETCE(); //使能DS1302 //CE = 1;
        Delay_10us(5);
        DS1302_Write8bit(RdRamBurst); //讀取代碼 //發送地址

        for(i = 0 ;i < 7 ; i++)
        {
        rstr[i] = DS1302_Read8bit();
        }

        //printf("code = %drn" ,code );
        Delay_10us(5);
        DS1302_SETSCK(); //SCLK = 1
        Delay_10us(5);
        DS1302_CLRCE(); //關閉DS1302 //CE = 0

        // for(i = 0 ;i < 7 ; i ++)
        {
        //printf("rstr[%d] = %drn",i,rstr[i]);
        }

        }
        //////////////測試而已/////////////////////////////////////////////////////
        void readTimeTest()
        {
        Time myTime;
        DS1302_ReadBurst((u8 *)&myTime);

        //printf("time:%d-%d-%d %d:%d:%drn",myTime.year, myTime.month, myTime.date,
        // myTime.hour,myTime.min,myTime.sec);

        }

        void DS1302_ReadTime(TIME_TypeDef* time)
        {
        Time myTime;
        DS1302_ReadBurst((u8 *)&myTime);

        time->year = myTime.year;
        time->month = myTime.month;
        time->date = myTime.date;

        time->hour = myTime.hour;
        time->min = myTime.min;
        time->sec = myTime.sec;

        // printf("time:%d-%d-%d %d:%d:%drn",myTime.year, myTime.month, myTime.date,
        // myTime.hour,myTime.min,myTime.sec);
        }

        ////讀出時間
        //void DS1302_ReadTime(TIME_TypeDef* time)
        //{
        // u8 i = 0;
        // u8 year_temp[3];
        // u8 month_temp[3];
        // u8 date_temp[3];
        // u8 hour_temp[3];
        // u8 min_temp[3];
        // u8 sec_temp[3];
        //
        // u8 max;
        // u8 min;
        //
        // for(i = 0 ; i < 3 ; i ++)
        // {
        // year_temp[i] = DS1302_ReadByte(RdYear);
        // month_temp[i] = DS1302_ReadByte(RdMonth);
        // date_temp[i] = DS1302_ReadByte(RdDate);
        // hour_temp[i] = DS1302_ReadByte(RdHour);
        // min_temp[i] = DS1302_ReadByte(RdMin);
        // sec_temp[i] = DS1302_ReadByte(RdSec);
        // }
        // //年
        // max = year_temp[0];
        // min = year_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(year_temp[i] > max)
        // {
        // max = year_temp[i];
        // }
        // if(year_temp[i] < min)
        // {
        // min = year_temp[i];
        // }
        // }
        // time->year = year_temp[0] + year_temp[1] + year_temp[2] - max - min;
        // //月
        // max = month_temp[0];
        // min = month_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(month_temp[i] > max)
        // {
        // max = month_temp[i];
        // }
        // if(month_temp[i] < min)
        // {
        // min = month_temp[i];
        // }
        // }
        // time->month = month_temp[0] + month_temp[1] + month_temp[2] - max - min;
        // //日
        // max = date_temp[0];
        // min = date_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(date_temp[i] > max)
        // {
        // max = date_temp[i];
        // }
        // if(date_temp[i] < min)
        // {
        // min = date_temp[i];
        // }
        // }
        // time->date = date_temp[0] + date_temp[1] + date_temp[2] - max - min;
        // //時
        // max = hour_temp[0];
        // min = hour_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(hour_temp[i] > max)
        // {
        // max = hour_temp[i];
        // }
        // if(hour_temp[i] < min)
        // {
        // min = hour_temp[i];
        // }
        // }
        // time->hour = hour_temp[0] + hour_temp[1] + hour_temp[2] - max - min;
        //
        // //分
        // max = min_temp[0];
        // min = min_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(min_temp[i] > max)
        // {
        // max = min_temp[i];
        // }
        // if(min_temp[i] < min)
        // {
        // min = min_temp[i];
        // }
        // }
        // time->min = min_temp[0] + min_temp[1] + min_temp[2] - max - min;
        //
        // //秒
        // max = sec_temp[0];
        // min = sec_temp[0];
        // for(i = 1 ; i < 3 ; i ++)
        // {
        // if(sec_temp[i] > max)
        // {
        // max = sec_temp[i];
        // }
        // if(sec_temp[i] < min)
        // {
        // min = sec_temp[i];
        // }
        // }
        // time->sec = sec_temp[0] + sec_temp[1] + sec_temp[2] - max - min;
        //
        //// time->year = DS1302_ReadByte(RdYear);
        //// time->month = DS1302_ReadByte(RdMonth);
        //// time->date = DS1302_ReadByte(RdDate);
        //// time->week = DS1302_ReadByte(RdWeek);
        ////
        //// time->hour = DS1302_ReadByte(RdHour);
        //// time->min = DS1302_ReadByte(RdMin);
        //// time->sec = DS1302_ReadByte(RdSec);
        //
        //// year_temp = DS1302_ReadByte(RdYear);
        //// year_month = DS1302_ReadByte(RdMonth);
        //// year_date = DS1302_ReadByte(RdDate);
        //// year_hour = DS1302_ReadByte(RdHour);
        //// year_min = DS1302_ReadByte(RdMin);
        //// year_sec = DS1302_ReadByte(RdSec);
        //
        //// printf("year = %drn",time->year);
        //// printf("month = %drn",time->month);
        //// printf("year = %drn",time->date);
        //// printf("year = %drn",time->hour);
        //// printf("year = %drn",time->min);
        //// printf("year = %drn",time->sec);
        ////
        //// printf("year_temp = %drn",year_temp);
        //// printf("year_month = %drn",year_month);
        //// printf("year_date = %drn",year_date);
        //// printf("year_hour = %drn",year_hour);
        //// printf("year_min = %drn",year_min);
        //// printf("year_sec = %drn",year_sec);
        //
        //
        //// if( (year_temp + year_month + year_date + year_hour + year_min + year_sec)
        //// < ( time->year + time->month + ))
        //// {
        ////
        //// }
        //}


        unsigned char time[20]="
        


主站蜘蛛池模板：
阿合奇县|
桃园市|
龙口市|
柞水县|
和平区|
新源县|
通化市|
理塘县|
贵州省|
彰化市|
大城县|
五台县|
昌黎县|
运城市|
柏乡县|
尖扎县|
昌都县|
益阳市|
湘乡市|
绍兴县|
买车|
阿坝县|
洮南市|
娄烦县|
华亭县|
内乡县|
甘谷县|
景德镇市|
伊吾县|
开封县|
读书|
西华县|
阿瓦提县|
桦川县|
天长市|
惠州市|
石屏县|
自贡市|
黔西县|
揭西县|
通许县|