main.c

关于STM32的FAT32文件系统源代码

/******************************************************************************
* 这是STM32的RTC模块演示程序
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "common.h"


/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define RTCClockOutput_Enable  /* RTC Clock/64 is output on tamper pin(PC.13) */

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
time_t current_time;
struct tm time_now;

vu32 TimeDisplay;

u8 state;

FATFS fs;
FRESULT res;
UINT br;


/* Private function prototypes -----------------------------------------------*/
extern void Init_Device(void);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
    u16 i;
	FIL file;
	char data[512];

    Init_Device();
    RTC_Config();
    SPI_Configuration();

    res = f_mount(0, &fs);
	
    res = f_open(&file, "data.txt", FA_OPEN_EXISTING | FA_READ);
    
    if(res!=FR_OK)
    {
		while(1);
    }
    
    for(i=0;i<512;i++)
	{
		data[i] = 0;
	}

    while(1)
    {
        if(fgets(data, sizeof(data), &file)==NULL)
        {
            break;
        }
        prints(data);
    }

    f_close(&file);

    /* 
    write_time = Time_GetUnixTime();                            
    res = f_open(&file, "331.txt", FA_CREATE_ALWAYS | FA_WRITE);
    for(i=0;i<3;i++)                                            
    {                                                           
        res = f_write(&file, data, 512, &br);                   
        if(br<512)  //判断是否磁盘写满                          
        {                                                       
            break;                                              
        }                                                       
    }                                                           
    write_time = Time_GetUnixTime() - write_time;               
        f_close(&file);                                         
    */



    SD_PWR_OFF();
    while(1)
    {
        
        /* 
        if(TimeDisplay)                                                           
        {                                                                         
            current_time = Time_GetUnixTime();                                    
            time_now = Time_GetCalendarTime();                                    
                                                                                  
            USART_SendData(USART1, 0x0c);                                         
            while(USART_GetFlagStatus(USART1, USART_FLAG_TC)==RESET);             
                                                                                  
            printf("\r\nUNIX时间：%d", current_time);                             
            printf("\t当前时间：%d-%d-%d %d %02d:%02d:%02d\t", time_now.tm_year, \
                   time_now.tm_mon+1, time_now.tm_mday, time_now.tm_wday+1,\      
                   time_now.tm_hour, time_now.tm_min, time_now.tm_sec);           
            TimeDisplay = 0;                                                      
        }                                                                         
        */
        
    }
}