AIX imprecise external abort

dominik schuierer

Right now my project includes a working version of Threadx and Can support (both of which i didn´t implement).

After activating Can support, i run into an abort (always after about 2s running).

I implemented a smal abort handler which gave me:

CAUSE of Abort: 0x00000c06

which i decode as "Imprecise external abort, AIX Decode Error while writing" and - frankly - i have no idea what that is about....

over 12 years ago

0 Zhaohong Zhang over 12 years ago

TI__Mastermind 22715 points

Dominik,

This error indicates that CPU tried to write to some unimplemented peripheral space. You can use the attached assembly code in your data abort ISR to read R4 registers then you can find error type and error address.

5811.coprocessor_EABI.asm

Thanks and regards,

Zhaohong

0 dominik schuierer over 12 years ago in reply to Zhaohong Zhang

Intellectual 350 points

Thanks. Really!

Your reply didn´t solve my problem - yet. But i now know, what it´s not. Which is a great deal!

I ran into some other problems with the built in assembler - but this can be considered solved...

Thanks again!

Arm-based microcontrollers

Arm-based microcontrollers forum

AIX imprecise external abort