SDIO (with DMA) does not respond after inactivity

[jean]

Hello to the community!

I've run into a strange problem on my STM32F7:

• I init, mount and open a file directly after the uC init
• if I read this file often (from my main() while(1)), I never have read problems (it can works for hours)
• if I don't read the file for about 10 minutes, I can't access the file anymore

Seems it stays infinitely in the function HAL_SD_GetCardState(...)

and more precisely inside HAL_SD_GetCardState(&_HSD);

Have somebody ever experienced this issue? I will not be surprised if it's a HAL bug :)

Thanks for your help!