STM32 FATS 0.13a移植可用代码

IdeaMing · 发表于 2018-3-1 17:25:15

本帖最后由 IdeaMing 于 2018-3-1 17:26 编辑

使用STM32F103ZET6，SDIO接口读写TF卡，完成后测试了一下读文件，读文件列表，文件追加等功能。
测试完美读出bin文件，感觉以后可以做个自动升级的IAP程序了。
部分代码
[mw_shl_code=c,true]void SD_ReadTest(void)
{
unsigned int offset = 0;
disk_initialize(DEV_MMC);
res = f_mount(&fs,"1:",0); // 挂载
res = f_open(&fsrc,"1:/KILLL.BAT",FA_OPEN_EXISTING | FA_READ); // 打开文件
if(res != FR_OK)
{
      printf("%d ",res);
      printf("open error\r\n");
}
else
{
      file_size = f_size(&fsrc);
      printf("filesize:%d\r\n",file_size);
      do{
         res = f_lseek(&fsrc,offset); // 指针往后推128
         res = f_read(&fsrc,buffer,sizeof(buffer),&br);
         if(res == FR_OK)
         {
            USART1_SendBuf(buffer,br);
            printf("\r\n");
         }
         else
         {
            printf("read fils err\r\n");
         }
         offset += 128;
         file_size -= 128;
      }while(file_size>128);
      if(file_size>0)
      {
         res = f_read(&fsrc,buffer,file_size,&br);
         if(res == FR_OK)
         {
            USART1_SendBuf(buffer,br);
            printf("EndOfFile\r\n");
         }
         else
         {
            printf("read fils err\r\n");
         }
      }
      f_close(&fsrc);// 关闭文件
}
f_mount(NULL,"1:",0); //卸载磁盘
}  [/mw_shl_code]
以上是读取文件，文件名自己定义。
[mw_shl_code=c,true]void SD_WriteTest(void)
{
unsigned char write_f[20]={"ming write file test"};
disk_initialize(0);
res = f_mount(&fs,"1:",0);
res = open_append(&fdst,"1:/testa.txt");

  //  res = f_open(&fdst, "1:/testa.txt", FA_CREATE_ALWAYS | FA_WRITE);
if(res != FR_OK)
{
      printf("open error\r\n");
}
else
{
      f_printf(&fdst, "%d\n", runtime);
      //res = f_write(&fdst,write_f,sizeof(write_f),&bw);
      //res = f_puts("hello",&fdst);
      if(res <0)
      {
         printf("write err! %d\r\n",res);
      }
      else
      {
         printf("write ok! %d\r\n",res);
      }
      f_close(&fdst);
}
f_mount(NULL,"1:",0);// 卸载
printf("write test passed! \r\n");
}[/mw_shl_code]
以上是追加文件，还需要下面这段
[mw_shl_code=c,true]FRESULT open_append (
FIL* fp,          /* [OUT] File object to create */
const char* path /* [IN]  File name to be opened */
)
{
FRESULT fr;

/* Opens an existing file. If not exist, creates a new file. */
fr = f_open(fp, path, FA_WRITE | FA_OPEN_ALWAYS);
if (fr == FR_OK) {
      /* Seek to end of the file to append data */
      fr = f_lseek(fp, f_size(fp));
      if (fr != FR_OK)
         f_close(fp);
}
return fr;
}[/mw_shl_code]
下面是读文件列表
[mw_shl_code=c,true]void ReadSDFile(void)
{
//  FIL file;
  FILINFO finfo;
  DIR dirs;
  int i_name=0;
//  char *fn;
  f_mount(&fs,"1:",1);
  res =  f_opendir(&dirs, "1:/");
  if (res == FR_OK)
  {
while (f_readdir(&dirs, &finfo) == FR_OK)
      {
      if (finfo.fattrib & AM_ARC)
   {
      if(!finfo.fname[0])       break;  //文件名不为空，如果为空，则表明该目录下面的文件已经读完了
            stringcopy(buff_filename[i_name], (BYTE*)finfo.fname);
            i_name++;
      file_cnt = i_name;
      }
      }
f_close(&fsrc);
i_name = 0;
do{
      //USART1_SendBuf(buff_filename[i_name],br);
      printf("%s\r\n",buff_filename[i_name]);
      i_name++;
      file_cnt--;
}while(file_cnt);
  }
  f_mount(NULL,"1:",1);
}[/mw_shl_code]

STM32_SDIO_FAT13.zip (1.44 MB, 下载次数: 124)