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EFM32/Cortex M3 cannot allocate TCB and stack

Posted by Stuart on September 14, 2011
All, I am running the EFM32 port for FreeRTOS with early signs of success, but I think I'm having trouble with memory allocation. I can prvAllocateTCBAndStack() fails when the idle task is created. If I have extremely simple projects (i.e. one real task), it works.

There is only 4K of RAM on the device, but that still should be enough. (Right?)

I think there may a problem with the heap size allocation (configTOTAL_HEAP_SIZE in FreeRTOSConfig.h) or the linker configuration file (EFM32GT84032.icf).

What heap size are people using (configTOTAL_HEAP_SIZE)?

While heap_x.c file are people using?

Has anyone run into this? Would anyone care to send/post their FreeRTOSConfig.h and .icf file?

Any help appreciated. Thanks.

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