uint32 got copied wrong? (Bit error while debugging)

[NewtoM]

Hi,

I am struggling with I2S. While I was debugging my I2S data handler function, I found something interesting. I copy one element from a uint32 buffer into a (static volatile) uint32 variable and the values are not the same! Here is a screenshot:

And here is the relevant disassembly:

Can anyone explain?

Thanks,

NewtoM

[Susheel Nuguru]

EasyDma is not stopped when the debugger halts the CPU, so it is possible new transaction of EasyDMA overwrite your buffer.

[NewtoM]

Thank you! That must be the issue. I will keep that in mind while debugging.