98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
#include "ff.h"
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#include "FatfsTask.h"
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#include "RTCTask.h"
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#include "os.h"
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#include <stdio.h>
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#include <string.h>
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FATFS fs;
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FIL file;
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FRESULT res;
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// 初始化，挂载文件系统
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void InitFileSystem() {
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// 尝试挂载文件系统
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res = f_mount(&fs, "", 1);
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if (res != FR_OK) {
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// 如果挂载失败，尝试创建文件系统
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MKFS_PARM fs_params = {FM_ANY, 0, 0, 0, 0};
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BYTE work[FF_MAX_SS]; // 工作缓冲区
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res = f_mkfs("", &fs_params, work, sizeof(work));
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if (res != FR_OK) {
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// printf("Failed to create filesystem: %d\n", res);
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return;
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}
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// 重新挂载文件系统
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res = f_mount(&fs, "", 1);
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if (res != FR_OK) {
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// printf("Failed to mount filesystem after creation: %d\n", res);
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return;
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}
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}
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// 创建目录“RTCData”
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res = f_mkdir("RTCData");
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if (res != FR_OK && res != FR_EXIST) {
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// printf("Failed to create directory: %d\n", res);
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return;
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}
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}
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// 将timeStr放入RTC.txt文件中
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void FATFSTask() {
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UINT bw;
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char timeStr[12];
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// int i = sizeof(file);
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// printf("Size of file structure: %d bytes\n", i);
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while (1) {
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// 打开文件
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res = f_open(&file, "RTCData/RTC.txt", FA_WRITE | FA_OPEN_ALWAYS);
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if (res != FR_OK) {
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OSTimeDlyHMSM(0, 0, 1, 0);
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continue;
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}
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// 移动到文件末尾
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res = f_lseek(&file, f_size(&file));
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if (res != FR_OK) {
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f_close(&file);
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OSTimeDlyHMSM(0, 0, 1, 0);
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continue;
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}
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while (1) {
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// 获取时间并格式化
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sprintf(timeStr, "%02u:%02u:%02u\n", time.hour, time.minute, time.second);
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// 写入文件
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res = f_write(&file, timeStr, strlen(timeStr), &bw);
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if (res != FR_OK || bw != strlen(timeStr)) {
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break;
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}
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// 刷新文件缓冲区
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res = f_sync(&file);
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if (res != FR_OK) {
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break;
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}
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// 延迟1秒
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OSTimeDlyHMSM(0, 0, 1, 0);
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}
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// 确保文件关闭
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f_close(&file);
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// 延迟1秒后重试
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OSTimeDlyHMSM(0, 0, 1, 0);
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}
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}
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