RTOS/66AK2G02: Debugging Exceptions in CCS

Chuck Peplinski

Part Number: 66AK2G02
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

I'm running TI-RTOS on the ARM using CCS 6 on the K2G EVM. When the code hits an exception I end up at exit() and the stack doesn't tell me how I got there. The CCS debugger says "next frame is identical to an existing frame". Stepping with the debugger I see that I go through ti_sysbios_family_arm_exc_Exception_excHandlerAsm__I(). How do I tell the address that sent me to this? How do I get the stack before the exception?

over 8 years ago

0 Cvetolin Shulev-XID over 8 years ago

TI__Guru 65405 points

Hi Chuck,

I've forwarded this to the RTOS experts. Their feedback should be posted here.

BR
Tsvetolin Shulev

0 ToddMullanix over 8 years ago in reply to Cvetolin Shulev-XID

TI__Guru* 96960 points

This video/presentation might be helpful since it covers exceptions (along with stack overflows and memory mismanagement): training.ti.com/debugging-common-application-issues-ti-rtos

Todd

0 Chuck Peplinski over 8 years ago in reply to ToddMullanix

Genius 5770 points

Thanks Todd, this is helpful. It led me off on a chase to find all of the necessary documents.
If I may suggest an improvement or update, DSP BIOS used to publish an API reference as a PDF file. This is apparently no longer supported. Rather users should look to a file like C:/ti/bios_6_45_01_29/docs/cdoc/index.html. I eventually found an E2E discussing this when I searched for "TI-RTOS API Reference". But it might be better to add this pointer to this information, for instance at www.ti.com/.../ti-rtos.

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RTOS/66AK2G02: Debugging Exceptions in CCS