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标题: FatFs多分区，第二个分区新建文件提示该卷没有工作区 [打印本页]

作者: 张衍波 时间: 2015-5-27 16:21
标题: FatFs多分区，第二个分区新建文件提示该卷没有工作区

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tianxiaoMCU

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发表于 4 天前 | 只看该作者回帖奖励
FatFs版本是R0.11，不分区，新建文件、编辑文件都没有问题的。现在分成两个区，也没有问题，但是新建文件就有问题了，第二个分区新建文件一直出错，根据返回结果是12，The volume has no work area。劳烦大家帮忙看看

static FATFS FATfs;
static FIL fil;
static uint8_t work[_MAX_SS];

void formatflash(void)
{
FRESULT res;
DWORD plist[] = {50, 50, 0, 0};  /* Divide drive into two partitions */

/* Divide physical drive 0 */
f_fdisk(0, plist, work);

SEGGER_RTT_WriteString(0, "Partition, please waite...\r\n");

/* Register work area to the logical drive 0 */
f_mount(&FATfs, "0:", 0);
/* Create FAT volume on the logical drive 0. 2nd argument is ignored. */
res = f_mkfs("0:", 0, 4096);
if (FR_OK == res)
{
      SEGGER_RTT_WriteString(0, "format logical drive 0 Succeeded\r\n");
}
else
{
      SEGGER_RTT_WriteString(0, "format logical drive 0 faile\r\n");
      Err_Reason(res);
}
/* Unregister work area from the logical drive 0 */
f_mount(0, "0:", 0);

/* Register a work area to the logical drive 1 */
f_mount(&FATfs, "1:", 0);
/* Create FAT volume on the logical drive 1. 2nd argument is ignored. */
res = f_mkfs("1:", 0, 4096);
if (FR_OK == res)
{
      SEGGER_RTT_WriteString(0, "format logical drive 1 Succeeded\r\n");
}
else
{
      SEGGER_RTT_WriteString(0, "format logical drive 1 faile\r\n");
      Err_Reason(res);
}
/* Unregister work area from the logical drive 1 */
f_mount(0, "1:", 0);
}

void creatfile(void)
{
FRESULT res;

/* Register work area to the logical drive 0 */
res = f_mount(&FATfs, "0:", 0);
if (RES_OK != res)
{
      SEGGER_RTT_WriteString(0, "mount logical drive 0 faile\r\n");
      Err_Reason(res);
      return;
}

/* creat a bin file */
res = f_open(&fil, "test.log", FA_CREATE_ALWAYS);
if (RES_OK == res)
{
      SEGGER_RTT_WriteString(0, "creat log file Succeeded\r\n");
}
else
{
      SEGGER_RTT_WriteString(0, "creat file log faile\r\n");
      Err_Reason(res);
}

/* Close the file */
f_close(&fil);

/* Unregister work area */
f_mount(0, "0:", 0);

/* Register work area to the logical drive 1 */
res = f_mount(&FATfs, "1:", 0);
if (RES_OK != res)
{
      SEGGER_RTT_WriteString(0, "mount logical drive 1 faile\r\n");
      Err_Reason(res);
      return;
}

/* creat a bin file */
res = f_open(&fil, "test.bin", FA_CREATE_ALWAYS);
if (RES_OK == res)
{
      SEGGER_RTT_WriteString(0, "creat bin file Succeeded\r\n");
}
else
{
      SEGGER_RTT_WriteString(0, "creat bin file faile\r\n");
      Err_Reason(res);
}

/* Close the file */
f_close(&fil);

/* Unregister work area */
f_mount(0, "1:", 0);
}
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