How to enable SDMMC + FATFS + FREERTOS on STM32H723ZGT6
Hello,
I am trying to take a log using my sdcard on my project.I am using FATFS that included in STM32CubeIDE but I got some issues, without FREERTOS everything works as expected and fine but when I enable the FREERTOS and it want's me to enable USE_NEWLIN_REENTRANT.
When I enable it generates problem with FATFS USE_LFN(long file name) selection and normally it is Enable with dynamic working buffer on BSS. But the IDE wants me to change it and I change it for the STACK than I tried the HEAP and also tried for the disable option. But in both way my system got stuck in f_open function and returns FR_NOT_READY I searched online but I couldn't find the exact solution for this problem. When I searched I found examples for DMA option but I don't have the dma option in .ioc file you can see it in attachements.
I am trying to initialize my sdcard in main code and my function looks like this
FRESULT initialize_sd_card(void)
{
FRESULT res; /* FatFs function common result code */
FIL SDFile; /* File object */
// Get the current date from the RTC
HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN); // Optional if you need time as well
HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);
// Format the file name with the date and time
snprintf(filename, sizeof(filename), "%02d-%02d-%04d %02d.%02d.txt",
sDate.Month, sDate.Date, 2000 + sDate.Year,
sTime.Hours, sTime.Minutes);
if(f_mount(&SDFatFS, (TCHAR const*)SDPath, 0) != FR_OK)
{
return FR_NOT_READY;
}
printf("Mounted successfully.\n\r");
res = f_open(&SDFile, filename, FA_OPEN_ALWAYS | FA_WRITE);
if(res != FR_OK)
{
return res;
}
if (f_close(&SDFile) != FR_OK)
{
return FR_INT_ERR;
}
printf("SD Card initialized.\n\r");
return FR_OK;
}
In my initalization I am opening and closing the my document otherwise my write function does not working I couldn't understan it also. because I don't want to mount and unmount everytime that I use. I am using RTC for taking log with 10 seconds peroid. This is my write function.
FRESULT write_to_sdcard(uint8_t *wtext)
{
FRESULT res; /* FatFs function common result code */
UINT byteswritten; /* File write count */
FIL SDFile; /* File object */
res = f_open(&SDFile, filename, FA_OPEN_ALWAYS | FA_WRITE);
if(res != FR_OK)
{
f_mount(NULL, "", 0); // Unmount the file system
return res;
}
res = f_lseek(&SDFile, f_size(&SDFile));
if(res != FR_OK)
{
f_close(&SDFile);
f_mount(NULL, "", 0); // Unmount the file system
return res;
}
res = f_write(&SDFile, wtext, strlen((char *)wtext), &byteswritten);
if((byteswritten == 0) || (res != FR_OK))
{
f_close(&SDFile);
f_mount(NULL, "", 0); // Unmount the file system
return res;
}
if (f_close(&SDFile) != FR_OK)
{
f_mount(NULL, "", 0); // Unmount the file system
return FR_INT_ERR;
}
return FR_OK;
}
Can anyone help me with these issues:
1. How can I work with RTOS and FATFS at the same time what is causing that FR_NOT_READY issue for f_open function?
2. Why do I need to open and close file in itialization. Why not just mount isn't enough?
Thank you for your helps.