USBX blocking ISR

MHerr.8 · ‎2024-07-16

Hi,

during porting the USBX as host stack to an stm32h7 I was getting an error indication,

that a semaphore was used during interrupt context (OTG_HS_IRQHandler).

For my opinion, it is wrong to call the generated code out of the ISR without decoupling the context.

How did you solve the problem? Is there a posibility in cubemx the generate code with decoupling the context?

.

FBL · ‎2024-09-11

Hi @MHerr.8

AFAIK, semaphores should not be used directly in ISR. Could you explain what do you mean MX generates code in decoupling context?

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