AM3356: RTOS exception questions

Hiroyasu Tazawa1

Guru 12350 points

Part Number: AM3356
Other Parts Discussed in Thread: SYSBIOS

Hi,

Let me talk about SYS/BIOS of exception for AM335x.

When an exception occurs on the ARM processor, it moves to an exception handler.

"C:\ti\bios_6_52_00_12\packages\ti\sysbios\family\arm\excException.c"

Exception_excHandler function

It is confirmed there,

1. Can I move the processing to the specified function for each type of exception?

2. Is there any documentation on how to set up on CCS etc. when implementing exception handling?

3. Is there a way to temporarily cancel an exception?

Best Regards
Hiroyasu

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

The RTOS team have been notified. They will respond here.

0 Lalindra Jayatilleke over 7 years ago

TI__Mastermind 30365 points

Hiroyasu,

I will let the RTOS experts chime in.
Here's some material that discusses exception handling (although its on the M3).
processors.wiki.ti.com/.../DebuggingExceptions.pdf

Lali

0 ToddMullanix over 7 years ago in reply to Lalindra Jayatilleke

TI__Guru* 96960 points

There's this training on exceptions also: training.ti.com/debugging-common-application-issues-ti-rtos

Todd

0 Hiroyasu Tazawa1 over 7 years ago in reply to ToddMullanix

Guru 12350 points

Hi, Lali and Todd

Thank you for your reply.
I got it. But I do not still understand No.3

>3. Is there a way to temporarily cancel an exception?

It means customer want to return main loop.

Best regards
Hiroyasu

0 ToddMullanix over 7 years ago in reply to Hiroyasu Tazawa1

TI__Guru* 96960 points

You cannot cancel an exception. You can reset the device (directly or via watchdog).

0 Hiroyasu Tazawa1 over 7 years ago in reply to ToddMullanix

Guru 12350 points

Hi, Todd

Thank you for your reply.
I got it.

Best Regards
Hiroyasu

Processors

Processors forum

AM3356: RTOS exception questions