stm32 - Unable to access SD card using FATFS

Question

I have a code stm32f103 with sd card, and 4 task when i call this: fresult = f_mount(&fs, "/", 1);

// ------------------------ CREATE NEW FILE -----------------------//   
    fresult = f_open(&fil, "hello_htn.txt", FA_CREATE_ALWAYS | FA_WRITE);
    if (fresult == FR_OK) tt_sd = 1;
    strcpy (buffer, "HELLO
");
    fresult = f_write(&fil, buffer, bufsize(buffer), &bw);
    f_close(&fil);

all task can't run if I delete this code, all task can run normaly, but can't write file help me, Thanks you

question from:https://stackoverflow.com/questions/65886642/unable-to-access-sd-card-using-fatfs

Answer 1

Waitting for answers