CallStack after entering in the endless loop "dataEntry" because of illegal data access

Poldi

Hi,

I have questions related to the Hercules mcu TMS570LS313 running with OS FreeRTOS and LWIP TCP/IP Stack provided from TI. IDE: Code Composer Studio Version: 5.2.1.00018.

My code ends after 2-3 Minutes up in the intvecs "b dataEntry". To debug the error I copied the LR in PC und i see the error was a illegal data access:

strb R3, [R0, #2] // the content of R0=0x0803FFFF --> Write in the adress 0x08040000 is not allowed.

This Call is in the memcpy Funktion.

My Quetion: Is there a posibility to know the Callstack befor the crash accours. And so to know the causer of this illegal data access (the caller of the memcpy) ?

Regards

over 12 years ago

0 QJ Wang over 12 years ago

TI__Guru**** 198766 points

Hi Probli,

0x08040000 is out of the RAM range. The RAM size in TMS570LS31x is 256KB (0x08000000 ~ 0x0803FFFF).

Regards,

0 Poldi over 12 years ago in reply to QJ Wang

Prodigy 80 points

I know. Write in the this adresse (0x08040000) is not allowed. I wrote this in my post.

BUT how to debug / fix this. This is the quetion?

thanks

0 QJ Wang over 12 years ago in reply to Poldi

TI__Guru**** 198766 points

Hello Poldi,

I have forwarded your post to one of our experts on freeRTOS and lwip. He will be responding soon.

Regards,

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CallStack after entering in the endless loop "dataEntry" because of illegal data access