Posted on January 04, 2018 at 07:30Hi STM Community, I am working on one project , for reading a file from sd card and writing it back, And I am using STM32F779I Eval board for it. I am using STM CUBE Mx for generating the code for fatFs and SD card. I am using System workbench for STM32(Ac6) IDE for it. I referred some sample examples. So I made code for like below. But it is always failing at call f_mkfs() goes to error_handler. When I debug into f_mkfs it is failing at disk_write function(
if (disk_write(pdrv, buf, b_vol, 1) != RES_OK) return FR_DISK_ERR; /* Write it to the VBR sector */)
FRESULT res; /* FatFs function common result code */
uint32_t byteswritten, bytesread; /* File write/read counts */
uint8_t wtext[] = 'This is STM32 working with FatFs'; /* File write buffer */
uint8_t rtext[100]; /* File read buffer */
/*♯♯-1- Link the micro SD disk I/O driver ♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯*/
if(FATFS_LinkDriver(&SD_Driver, SDPath) == 0)
{
if(BSP_SD_Init() == MSD_OK)
{
/*♯♯-2- Register the file system object to the FatFs module ♯♯♯♯♯♯♯♯♯♯♯♯♯♯*/
if(f_mount(&SDFatFs, SDPath, 0) != FR_OK)
{
/* FatFs Initialization Error */
Error_Handler();
}
else
{
// ♯♯-3- Create a FAT file system (format) on the logical drive ♯♯♯♯♯♯♯♯♯
// WARNING: Formatting the uSD card will delete all content on the device
if(f_mkfs(SDPath, FM_ANY, 0, workBuffer, sizeof(workBuffer)) != FR_OK)
{
// FatFs Format Error
Error_Handler();
}
else
{
/*♯♯-4- Create and Open a new text file object with write access ♯♯♯♯♯*/
if(f_open(&MyFile, 'STM32.TXT', FA_CREATE_ALWAYS | FA_WRITE) != FR_OK)
{
/* 'STM32.TXT' file Open for write Error */
Error_Handler();
}
#fatfs-sdio #sdcard #f_mount-sdcard
