Internal exception Instruction fetch exception

SAI TECH

Intellectual 430 points

Other Parts Discussed in Thread: SYSBIOS

Hi,

I am using Sys/BIOS on TMDSEVM6670L in CCS5.5

taskParams.stackSize = 0x800;

Memory.defaultHeapSize = 4096;

While running my application code i am getting after my output in the console..

=0x3ff00000
B22=0x0 B23=0xbde3ee10
B24=0x0 B25=0x0
B26=0x5b7b5eff B27=0x0
B28=0x0 B29=0x1
B30=0x0 B31=0xffffffff
NTSR=0x1000f
ITSR=0xf
IRP=0x813dda
SSR=0x0
AMR=0x0
RILC=0x0
ILC=0x0
Exception at 0x0
EFR=0x2 NRP=0x0
Internal exception: IERR=0x1
Instruction fetch exception
ti.sysbios.family.c64p.Exception: line 255: E_exceptionMin: pc = 0x00000000, sp = 0x00816930.
To see more exception detail, use ROV or set 'ti.sysbios.family.c64p.Exception.enablePrint = true;'
xdc.runtime.Error.raise: terminating execution.

How to overcome this?

Thanks

SAITECH

over 10 years ago

0 Raja over 10 years ago

TI__Guru* 81335 points

Hi Sai Tech,
Is your application based on MCSDK or TI example?

0 one and zero over 10 years ago in reply to Raja

TI__Mastermind 18136 points

Hi SAITECH,

have you tried increasing the satck sizes?

Kind regards,
one and zero

0 SAI TECH over 10 years ago in reply to one and zero

Intellectual 430 points

HI,
yes,tried more.But getting Exceptional error.

Thanks
SAITECH

0 one and zero over 10 years ago in reply to SAI TECH

TI__Mastermind 18136 points

Hi SAITECH,

you're NRP is 0x0. That means your program has branched to address 0x0, which should not happen. The most likely reason for that is either a corrupted stack or a too small stack.

To track stack usage please have a look here:

Kind regards,

one and zero

Processors

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Internal exception Instruction fetch exception