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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [August 2010 Threads] pxCurrentTCB issue - Cortex M3Posted by François DE LA ROCHE on August 26, 2010 Hi,
I'm developping on a Stellaris LM3S9B90 (Cortex-M3 core) Eval Board from Texas Instrument, and I'm implementing FreeRTOS on this platform. I have like 3 tasks running on the board and lately, I got a FaultISR problem. I checked the Cortex-M3 registers to know from where was happening this problem and it happens that the last Program Counter before the fault was pointing on a pxCurrentTCB operation. This is the last error I got :
pxCurrentTCB, pxCurrentTCB: 0x2000CCA0: 2E58 CMP R6, #0x58
But I got problems with a MOV instead of CMP early, always with pxCurrentTCB operation.
Can you advice me about this error ? Is it due to a memory fault (context cannot be restored correctly) ?
Thanks all.
RE: pxCurrentTCB issue - Cortex M3Posted by Richard on August 26, 2010 From one line of assembly code I have absolutely no idea what the problem is, or what it could be - and never will do.
Regards.
RE: pxCurrentTCB issue - Cortex M3Posted by François DE LA ROCHE on August 26, 2010 Obviously, there was a problem with Task Management...
I solved the problem but I don't know how...
RE: pxCurrentTCB issue - Cortex M3Posted by cee on October 15, 2010 hi cisco
have you get rid of this error permanently? I have a similar problem, with my code also on a LM3S9B90 custom board. Sometimes it works, but most of the time I get catapulted straight to FaultISR. Did you use CodeSourcery G++? In another thread it's mentioned that it might behave a little different than eclipse with openOCD.
If you can provide any more information what helped you to get it running I would be very happy.
Thanks
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