How to resolve EXCAUSE 0x2A Exception?

Hi Pujitha,

The causes of Hardware Exceptions are described in the sequencer section of the ADSP-BF60x Blackfin Processor Programming Reference Manual (PRM), and the likely causes include misaligned accesses to external memory, accessing an MMR while in user mode, accessing an MMR by the incorrect width, etc.

You may check the SEQSTAT registers EXCAUSE field to check the type of error. For more information regarding SEQSTAT you may refer Blackfin processors PRM manual, which is available at the below link:
https://www.analog.com/media/en/dsp-documentation/processor-manuals/Blackfin_pgr_rev2.2.pdf

To find what line of assembly caused the hardware exception, you should examine the RETX register. This will give you the assembly line that the hardware exception occurred at. To view the assembly line, you can type the address (or '$RETX') into the address box in the disassembly window.

Regards,
Divya.P

Hi

Thank you for your reply and sorry for the delayed response.