STM32CubeMX FATFS SD card re-insert

[petr239955]

Posted on May 11, 2016 at 10:39

Does anybody know how to solve the

re-

inserting the

SD card ?

I have a project

generated by STM32CubeMX. I have used it for re-inserting the SD card

this function

: if (CD_CARD == b_cd) {   if (CD_NO_CARD == b_cd_last)   {                               /* insert */     res = f_mount(&SDFatFs, (TCHAR const*)SD_Path, 0);     if (res == FR_OK)     {       App_Clear_Error(ERR_SD_INIT);     }     else     {       App_Set_Error(ERR_SD_INIT);     }   } } else {   if (CD_CARD == b_cd_last)   {                               /* eject */      res = f_mount(NULL, (TCHAR const*)SD_Path, 0);      App_Set_Error(ERR_SD_INIT);   } } b_cd_last = b_cd;

Card operations as f_open after re-inserting the sd card

do not work.

#stm32cubemx-fatfs-sd-re-insert

[slimen]

Posted on May 11, 2016 at 12:22

Hi,

Which firmware package are you using ?You can find a full set of running examples and needed functions within the firmware package which is available on the ST web?Regards

[petr239955]

Posted on May 11, 2016 at 13:25

Hi,

I use STM32CubeMX 4.14.0, STM32CubeF7 1.3.1.

I found

a very simple examples for FATFS with an expected card inserted.

To test

the card

occurs

only

once after

reset. Petr

[petr239955]

Posted on May 13, 2016 at 14:29

I found some

solution.

I do not know

why there should be

a delay

(

HAL_Delay(10) ) ?

if (CD_CARD == b_cd)

{   if (CD_NO_CARD == b_cd_last)   {                               /* insert */

    MX_FATFS_Init();

    HAL_Delay(10);   /* min 5 ms */     res = f_mount(&SDFatFs, (TCHAR const*)SD_Path, 1);     if (res == FR_OK)     {       App_Clear_Error(ERR_SD_INIT);     }     else     {       App_Set_Error(ERR_SD_INIT);     }   } } else {   if (CD_CARD == b_cd_last)   {                               /* eject */    

FATFS_UnLinkDriver(SD_Path);

    HAL_SD_DeInit(&hsd1);     res = f_mount(NULL, (TCHAR const*)SD_Path, 1);     App_Set_Error(ERR_SD_INIT);   } } b_cd_last = b_cd;