H743 two SDMMC not work Simultaneously

[stive]

hi

i working on stm32h743vit to have two uSD card Simultaneously 

i use fatfs and SDIO 1 and SDIO 2

each sd card working in Single mode for SDIO 1 and SDIO 2

but i merge and change something to work correctly

but in main just mount work ....

i cant find whats wrong

[stive]

my mistake in driver i fix it

but now it work just in debug mode if i use in real mode not work

why?

can any body help

[Tesla DeLorean]

>>why?

I haven't worked on my telekinesis for several decades..

Perhaps you have a UART, or some other means of data output, that you can use to output telemetry or diagnostic information, absent a hardware debugger, and then use that to make some failure diagnosis or test theories about why it doesn't work as expected.

Have something useful output by the Hard Fault Handler, and Error Handler routines, so you can learn if it ended up in either of those places.

[stive]

but SW give widely tools for debug and simple and fast way