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SDIO (with DMA) does not respond after inactivity

jean
Senior

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!

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