TMS320F28335: What exactly does Illegal Operation mean? TMS320F28335

lslonim

Part Number: TMS320F28335

My code is occasionally giving an unexpected interrupt to vector D26 which is Illegal Operation. I'm using TMS320F28335, coding in C. I looked in sprufb0d (TMS320x2833x, 2823x System Control and Interrupts) and couldn't find a description of what the interrupt actually means. Where should I be looking to find this info?

Thanks,

Lloyd

over 8 years ago

0 Vivek Singh over 8 years ago

TI__Guru** 115271 points

Hi Lloyd,

Please refer this document - "TMS320C28x CPU and Instruction Set".

Regards,

Vivek Singh

0 lslonim over 8 years ago in reply to Vivek Singh

Expert 1710 points

Thanks very much, I appreciate it!

0 lslonim over 8 years ago in reply to Vivek Singh

Expert 1710 points

Printf strikes again - a 1K stack wasn't big enough for printf, that's what was causing my illegal instruction. I monitored stack requirements, adjusted my linker file to make stack bigger, no more problem.

0 Vivek Singh over 8 years ago in reply to lslonim

TI__Guru** 115271 points

Glad to know you were able to resolve the issue.

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TMS320F28335: What exactly does Illegal Operation mean? TMS320F28335