AURIX™ Forum Discussions

[User19424]

Hello

I am using the memory protection system and have ran into an issue.
Say the program encounters a read/write violation, and thus activates the trap; is there a way to know what memory location caused the violation?

For code execution protection this is solved since the trap saves the last PC location in the a11 register. But I can't find how to get the address the code tried to read from/write to.

Example:
(Say I have PROTEN enabled and my memory protection policy does not allow the following)

 ld.d e2, [a10]0x38 

Once I jump to the Trap (Class 1), How Can I get that [a10]0x38 value (or any value for that matter)?

Thanks.

[NeMa_4793301]

Check DEADD:

Data Memory Protection Traps
Data memory protection traps (MPW, MPR, MPP, MPN) are raised by the memory protection system when a protection violation occurs.
Whenever a data memory protection trap occurs the DSTR (Data synchronous trap register) and the DEADD (Data Error Address Register) are updated.

[User19424]

UC_wrangler wrote:
Check DEADD:

Yes!
Thank you very much.