At the first time, SDIO works well but 10~20 minutes later, when i try to open a file(FA_CREATE_NEW | FA_WRITE options), there is no answer for 30 seconds and then SDIO does not work anymore after being shown FR_DISK_ERR.
Through debugging, I found that SDIO doesn't work as soon as the osMessageGet called on SD-Write function (osMessageGet result is osEventTimeout).
This problem disappears when the SDIO clock speed is lowered (ClockDiv is 8 or more). However, the Read/Write speed get very slow too much than i want.
STM32CubeF4 Firmware Package v1.21.0
FreeRTOS 9.0.0 (CMSIS 1.02)
SDIO Settings (DMA used)