Differences between debug mode and normal running

[PieterInHetBos]

Hi all,

I have a piece of code that does DMA on a UART port. This DMA i read in an buffer and i reply in 1 ms

Sometimes i dont get the incomming UART message. I wanted to confimr this with the debug mode and reading the buffer with "live expressions". But when i use debug mode with live expresions the error never occurs. The rest of the codde is the same. 

Is there a difference in timing with the DMA UART when debug is enabled?

[Tesla DeLorean · Accepted solution]

Mostly code order and optimization.

Would watch for appropriate use of volatile and cache coherence protocols where those may be an issue.

[PieterInHetBos]

Thank you very much. I will do as adviced