FR_NO_FILESYSTEM ,FatFs,4-pins SDcard with Nucleo-L476RG

[anna23]

Posted on February 22, 2017 at 09:18

Hey all,

I want to write to SD card, I'm Using cube-mxstm32Nucleo-L476RG MCU ,and 4-pin SD card,

I attach my cube project, the main program has the following code:

declaring and init :

FATFS SDFatFs;

FIL MyFile;

extern char SD_Path[4]; /* SD logical drive path */

/* USER CODE END 0 */

int main(void)

{

/* USER CODE BEGIN 1 */

FRESULT res;

uint32_t byteswriten,byteread;

uint8_t wtext[]='Hello from STM32!!\0';

/* USER CODE END 1 */

/* MCU Configuration----------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */

HAL_Init();

/* Configure the system clock */

SystemClock_Config();

/* Initialize all configured peripherals */

MX_GPIO_Init();

MX_DMA_Init();

MX_DFSDM1_Init();

MX_SDMMC1_SD_Init();

MX_FATFS_Init();

MX_TIM6_Init();

MX_SDMMC1_SD_Init();

I am trying to write to sd card by the following code:

if(res=f_mount(&SDFatFs,(TCHAR const*)SD_Path,0)!=FR_OK)

{

Error_Handler();

}

else

{

if(res=f_open(&MyFile,'0:/mywrite.txt',FA_CREATE_ALWAYS | FA_WRITE ) != FR_OK)

{

Error_Handler();

}

else

{

res=f_write(&MyFile,wtext,sizeof(wtext),(void*)&byteswriten);

if((byteswriten==0) || (res!=FR_OK))

{

Error_Handler();

}

else

{

HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);

}

f_close(&MyFile);

}

}

I get FR_NO_FILESYSTEM if the SD is connected and if the SD is not connected, I get FR_NOT_READY,

Thanks for any help.

Note: this post was migrated and contained many threaded conversations, some content may be missing.

[Manjesh R]

Posted on May 09, 2018 at 13:31

hello

     I am working on sd card fatfs interfacing using stm32f103ze controller,i have developed a firmware for interfacing sd card through spi,i am trying to interface sd card using sdio + fatfs,I am looking for that code all over,if u have sdio+fatfs interfacing code,do u mind sharing that code with me.

                                                                                                                                    thank you

[Tesla DeLorean]

Posted on May 09, 2018 at 14:04

There should be a workable SDIO+FATFS example for the STM3210E-EVAL board under the HAL/Cube software trees.

[Manjesh R]

Posted on May 09, 2018 at 14:39

i have been searching from few days i cant get any code,if u have any codes can u plz forward it .i am using stm32f103ze controller with keil 4.21 compiler

[Tesla DeLorean]

Posted on May 09, 2018 at 15:08

You fail at searching skills.

STM32Cube_FW_F1_V1.6.1\Projects\STM3210E_EVAL\Applications\FatFs\FatFs_uSD

STM32Cube_FW_F1_V1.6.1\Drivers\BSP\STM3210E_EVAL\stm3210e_eval_sd.c

You might have to upgrade to Keil v5.2x for the HAL/CUBE Examples

STM32F10x_StdPeriph_Lib_V3.5.0\Project\STM32F10x_StdPeriph_Examples\SDIO\uSDCard

STM32F10x_StdPeriph_Lib_V3.5.0\Utilities\STM32_EVAL\Common\stm32_eval_sdio_sd.c

I can build Keil 4.2x projects, but would charge hourly.

[Manjesh R]

Posted on May 10, 2018 at 08:05

thank you...

[Daniel O'Neill]

Posted on May 11, 2018 at 00:19

Hi,

This may be to do with the polarity of your card detect. I have always found I have to invert it to get it to work correctly.

I fixed it in 

fatfs_platform.c

by changing BSP_PlatformIsDetected() 

from:      if

(

HAL_GPIO_ReadPin

(

SD_PORT

,

SD_PIN

) ==

GPIO_PIN_RESET

)

to:           if

(

HAL_GPIO_ReadPin

(

SD_PORT

,

SD_PIN

) !=

GPIO_PIN_RESET

)

Not This has worked for me on a F1 and an F4 so hopefully works for you. It seems a bit silly that here isn't any option to define the polarity for this.

[Manjesh R]

Posted on May 11, 2018 at 09:20

 ,

 ,

hi,

 ,I HAVE GOT SAME PROBLEM,ERROR IS , ,FR_NO_FILESYSTEM,I AM USING 8 GB SD CARD,INTERFACING USING SPI,I AM NEW TO FAT FS,CAN U HELP ME OUT HERE..

FRESULT auto_mount ( /* FR_OK(0): successful, !=0: any error occured */

 ,

const char **path, /* Pointer to pointer to the path name (drive number) */

 ,

FATFS **rfs, /* Pointer to pointer to the found file system object */

 ,

BYTE chk_wp /* !=0: Check media write protection for write access */

 ,

)

 ,

{

 ,

FRESULT res,

 ,

BYTE vol, fmt, *tbl,

 ,

DSTATUS stat,

 ,

DWORD bsect, fsize, tsect, mclst,

 ,

const char *p = *path,

 ,

FATFS *fs,

 ,

/* Get logical drive number from the path name */

 ,

vol = p[0] - '0', /* Is there a drive number? */

 ,

if (vol <,= 9 &,&, p[1] == ':') {

 ,

p += 2, /* Found a drive number, get and strip it */

 ,

*path = p, /* Return pointer to the path name */

 ,

} else {

 ,

vol = 0, /* No drive number is given, use drive number 0 as default */

 ,

}

/* Check if the logical drive number is valid or not */

 ,

if (vol >,= _DRIVES) return FR_INVALID_DRIVE, /* Is the drive number valid? */

 ,

*rfs = fs = FatFs[vol], /* Returen pointer to the corresponding file system object */

 ,

if (!fs) return FR_NOT_ENABLED, /* Is the file system object registered? */

ENTER_FF(fs), /* Lock file system */

if (fs->,fs_type) { /* If the logical drive has been mounted */

 ,

stat = disk_status(fs->,drive),

 ,

if (!(stat &, STA_NOINIT)) { /* and physical drive is kept initialized (has not been changed), */

 ,

♯ if !_FS_READONLY

 ,

if (chk_wp &,&, (stat &, STA_PROTECT)) /* Check write protection if needed */

 ,

return FR_WRITE_PROTECTED,

 ,

♯ endif

 ,

return FR_OK, /* The file system object is valid */

 ,

}

 ,

}

/* The logical drive must be re-mounted. Following code attempts to mount the volume */

fs->,fs_type = 0, /* Clear the file system object */

 ,

fs->,drive = LD2PD(vol), /* Bind the logical drive and a physical drive */

 ,

stat = disk_initialize(fs->,drive), /* Initialize low level disk I/O layer */

 ,

if (stat &, STA_NOINIT) /* Check if the drive is ready */

 ,

return FR_NOT_READY,

 ,

♯ if _MAX_SS != 512 /* Get disk sector size if needed */

 ,

if (disk_ioctl(fs->,drive, GET_SECTOR_SIZE, &,SS(fs)) != RES_OK || SS(fs) >, _MAX_SS)

 ,

return FR_NO_FILESYSTEM,

 ,

♯ endif

 ,

♯ if !_FS_READONLY

 ,

if (chk_wp &,&, (stat &, STA_PROTECT)) /* Check write protection if needed */

 ,

return FR_WRITE_PROTECTED,

 ,

♯ endif

 ,

/* Search FAT partition on the drive */

 ,

fmt = check_fs(fs, bsect = 0), /* Check sector 0 as an SFD format */

 ,

if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */

 ,

/* Check a partition listed in top of the partition table */

 ,

tbl = &,fs->,win[MBR_Table + LD2PT(vol) * 16], /* Partition table */

 ,

if (tbl[4]) { /* Is the partition existing? */

 ,

bsect = LD_DWORD(&,tbl[8]), /* Partition offset in LBA */

 ,

fmt = check_fs(fs, bsect), /* Check the partition */

 ,

}

 ,

}

 ,

if (fmt == 3) return FR_DISK_ERR,

 ,

if (fmt || LD_WORD(fs->,win+BPB_BytsPerSec) != SS(fs)) /* No valid FAT patition is found *////////THIS LINE ERROR

 ,

return FR_NO_FILESYSTEM,

/* Initialize the file system object */

 ,

fsize = LD_WORD(fs->,win+BPB_FATSz16), /* Number of sectors per FAT */

 ,

if (!fsize) fsize = LD_DWORD(fs->,win+BPB_FATSz32),

 ,

fs->,sects_fat = fsize,

 ,

fs->,n_fats = fs->,win[BPB_NumFATs], /* Number of FAT copies */

 ,

fsize *= fs->,n_fats, /* (Number of sectors in FAT area) */

 ,

fs->,fatbase = bsect + LD_WORD(fs->,win+BPB_RsvdSecCnt), /* FAT start sector (lba) */

 ,

fs->,csize = fs->,win[BPB_SecPerClus], /* Number of sectors per cluster */

 ,

fs->,n_rootdir = LD_WORD(fs->,win+BPB_RootEntCnt), /* Nmuber of root directory entries */

 ,

tsect = LD_WORD(fs->,win+BPB_TotSec16), /* Number of sectors on the file system */

 ,

if (!tsect) tsect = LD_DWORD(fs->,win+BPB_TotSec32),

 ,

fs->,max_clust = mclst = (tsect /* Last cluster ♯ + 1 */

 ,

- LD_WORD(fs->,win+BPB_RsvdSecCnt) - fsize - fs->,n_rootdir / (SS(fs)/32)

 ,

) / fs->,csize + 2,

fmt = FS_FAT12, /* Determine the FAT sub type */

 ,

if (mclst >,= 0xFF7) fmt = FS_FAT16, /* Number of clusters >,= 0xFF5 */

 ,

if (mclst >,= 0xFFF7) fmt = FS_FAT32, /* Number of clusters >,= 0xFFF5 */

if (fmt == FS_FAT32)

 ,

fs->,dirbase = LD_DWORD(fs->,win+BPB_RootClus), /* Root directory start cluster */

 ,

else

 ,

fs->,dirbase = fs->,fatbase + fsize, /* Root directory start sector (lba) */

 ,

fs->,database = fs->,fatbase + fsize + fs->,n_rootdir / (SS(fs)/32), /* Data start sector (lba) */

♯ if !_FS_READONLY

 ,

/* Initialize allocation information */

 ,

fs->,free_clust = 0xFFFFFFFF,

 ,

fs->,wflag = 0,

 ,

/* Get fsinfo if needed */

 ,

if (fmt == FS_FAT32) {

 ,

fs->,fsi_sector = bsect + LD_WORD(fs->,win+BPB_FSInfo),

 ,

fs->,fsi_flag = 0,

 ,

if (disk_read(fs->,drive, fs->,win, fs->,fsi_sector, 1) == RES_OK &,&,

 ,

LD_WORD(fs->,win+BS_55AA) == 0xAA55 &,&,

 ,

LD_DWORD(fs->,win+FSI_LeadSig) == 0x41615252 &,&,

 ,

LD_DWORD(fs->,win+FSI_StrucSig) == 0x61417272) {

 ,

fs->,last_clust = LD_DWORD(fs->,win+FSI_Nxt_Free),

 ,

fs->,free_clust = LD_DWORD(fs->,win+FSI_Free_Count),

 ,

}

 ,

}

 ,

♯ endif

 ,

fs->,winsect = 0,

 ,

fs->,fs_type = fmt, /* FAT syb-type */

 ,

fs->,id = ++Fsid, /* File system mount ID */

 ,

res = FR_OK,

return res,

 ,

}

[Tesla DeLorean]

Posted on May 11, 2018 at 10:29

Fails here because you're reading junk data from the media. Fix the DISKIO layer so the read sector routines work properly. ie test and validate operation. 

[Manjesh R]

Posted on May 16, 2018 at 11:51

HELLO CLIVE ONE

               MY CODE IS WORKING FOR 2GB MEMORY CARD ,I CAN CREATE FILE AND WRITE TO IT, USING SPI-SD INTERFACE,BUT IF I USE 8GB MEMORY CARD ITS GIVING FR_NO_FILE_SYSTEM,CAN U HELP ME OUT HERE .

                                                                                                                                    THANK YOU