帮我写一份stm32f103 ds1302模块的代码

好的，下面是基本框架和代码：

#include <stdio.h>
#include <stdlib.h>
#include "stm32f10x.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_spi.h"
#include "ds1302.h" //DS1302 库头文件

#define GPIO_RCC RCC_APB2Periph_GPIOA //GPIOA 时钟
#define SPI_RCC RCC_APB2Periph_SPI1 //SPI1 时钟

#define CS_Pin GPIO_Pin_4 //片选引脚
#define SCLK_Pin GPIO_Pin_5 //时钟引脚
#define MOSI_Pin GPIO_Pin_7 //数据引脚

void GPIO_Configuration(void);
void SPI_Configuration(void);
uint8_t SPI_ReadWriteByte(uint8_t byte);
void DS1302_WriteByte(uint8_t address, uint8_t dat);
uint8_t DS1302_ReadByte(uint8_t address);
void DS1302_SetTime(time_t *time);
void DS1302_GetTime(time_t *time);

int main(void)
{
    time_t time;

    GPIO_Configuration();
    SPI_Configuration();
    DS1302_Init();
    while(1)
    {
        DS1302_GetTime(&time); //读取时间
        printf("%d:%d:%d\n", time.hour, time.minute, time.second); //打印时间
        Delay(1000); //延时 1 秒
    }
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(GPIO_RCC, ENABLE);

    GPIO_InitStructure.GPIO_Pin = CS_Pin | SCLK_Pin | MOSI_Pin;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
}

void SPI_Configuration(void)
{
    SPI_InitTypeDef SPI_InitStructure;

    RCC_APB2PeriphClockCmd(SPI_RCC, ENABLE);

    SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
    SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
    SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
    SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
    SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
    SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
    SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
    SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
    SPI_Init(SPI1, &SPI_InitStructure);
    SPI_Cmd(SPI1, ENABLE);
}

uint8_t SPI_ReadWriteByte(uint8_t byte)
{
    while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET){}
    SPI_I2S_SendData(SPI1, byte);
    while(SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_RXNE) == RESET){}
    return SPI_I2S_ReceiveData(SPI1);
}

void DS1302_WriteByte(uint8_t address, uint8_t dat)
{
    GPIO_SetBits(GPIOA, CS_Pin); //选中 DS1302
    SPI_ReadWriteByte((address << 1) & 0xFE); //发送地址
    SPI_ReadWriteByte(dat); //发送数据
    GPIO_ResetBits(GPIOA, CS_Pin); //取消选中 DS1302
}

uint8_t DS1302_ReadByte(uint8_t address)
{
    uint8_t dat;

    GPIO_SetBits(GPIOA, CS_Pin); //选中 DS1302
    SPI_ReadWriteByte((address << 1) | 0x01); //发送地址
    dat = SPI_ReadWriteByte(0xFF); //读取数据
    GPIO_ResetBits(GPIOA, CS_Pin); //取消选中 DS1302
    return dat;
}

void DS1302_SetTime(time_t *time)
{
    DS1302_WriteByte(ADDR_WP, 0x80); //进入写保护模式
    
    DS1302_WriteByte(ADDR_SECOND, (time->second % 10) | ((time->second / 10) << 4)); //写秒
    DS1302_WriteByte(ADDR_MINUTE, (time->minute % 10) | ((time->minute / 10) << 4)); //写分
    DS1302_WriteByte(ADDR_HOUR, (time->hour % 10) | ((time->hour / 10) << 4)); //写时
    DS1302_WriteByte(ADDR_DATE, (time->day % 10) | ((time->day / 10) << 4)); //写日
    DS1302_WriteByte(ADDR_MONTH, (time->month % 10) | ((time->month / 10) << 4)); //写月
    DS1302_WriteByte(ADDR_WEEK, time->week); //写周
    DS1302_WriteByte(ADDR_YEAR, (time->year % 10) | ((time->year / 10) << 4)); //写年
    
    DS1302_WriteByte(ADDR_WP, 0x00); //退出写保护模式
}

void DS1302_GetTime(time_t *time)
{
    time->second = (DS1302_ReadByte(ADDR_SECOND) & 0x0F) + ((DS1302_ReadByte(ADDR_SECOND) >> 4) * 10); //读秒
    time->minute = (DS1302_ReadByte(ADDR_MINUTE) & 0x0F) + ((DS1302_ReadByte(ADDR_MINUTE) >> 4) * 10); //读分
    time->hour = (DS1302_ReadByte(ADDR_HOUR) & 0x0F) + ((DS1302_ReadByte(ADDR_HOUR) >> 4) * 10); //读时
    time->day = (DS1302_ReadByte(ADDR_DATE) & 0x0F) + ((DS1302_ReadByte(ADDR_DATE) >> 4) * 10); //读日
    time->month = (DS1302_ReadByte(ADDR_MONTH) & 0x0F) + ((DS1302_ReadByte(ADDR_MONTH) >> 4) * 10); //读月
    time->week = DS1302_ReadByte(ADDR_WEEK); //读周
    time->year = (DS1302_ReadByte(ADDR_YEAR) & 0x0F) + ((DS1302_ReadByte(ADDR_YEAR) >> 4) * 10); //读年
}

请注意，这只是代码的基础框架，你还需要根据自己的实际情况进行适当的修改，例如时钟的初始化、引脚的设置等。