maxikrie commented on issue #17361:
URL: https://github.com/apache/nuttx/issues/17361#issuecomment-6429231818

   @acassis @bskdany Could you retry on current master? #20173 (merged 
2026-09-18) fixed a race in the STM32H7 tickless driver where a compare value 
set just too late made the timer wait for a full counter wrap (~71 min at 1 
MHz). Card identification polls with short delays, so it may have been that. On 
a NUCLEO-H753ZI with tickless on TIM2 I could reproduce such hangs with plain 
`usleep` from NSH before #20173 and not after it (see #16829). I can't test the 
SD card here (no slot on the Nucleo).


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