CC2564 with STM32F4 Discovery and FreeRTOS, demo project causes hard fault

Toby Isaacs

I'm trying to run the example project, specifically the AUD demo that come with the Bluetopia stack with the STM32F4 discovery board.

I've ported the code following the process in the "Enable_STM32_Discovery.pdf". The exact processor is an STM32F407VG.

The NoOS project works, but when I try to run the FreeRTOS project the processor goes into hard fault. Using the debugger I've verified at which point of the code it does this. The stack trace is:

main() -> vTaskStartScheduler() -> xPortStartScheduler() -> vPortStartFirstTask()

The processor then faults on the svc 0 instruction within the vPortStartFirstTask function. I've tried with both the IAR and Keil IDEs.

I haven't changed the example project at all, apart from following the instructions within "Enable_STM32_Discovery.pdf". Does anybody have a solution to this problem?

over 9 years ago

0 Joseph Gigi over 9 years ago

TI__Guru* 85400 points

Hi,

Can you please confirm the release version?

Regards,
Gigi Joseph.

0 Toby Isaacs over 9 years ago in reply to Joseph Gigi

Prodigy 40 points

Thanks for the quick response, really appreciate it.

The CC256x STM32 Bluetopia SDK is version v4.0.2.2

0 linas rudalevicius over 9 years ago

Prodigy 160 points

Read this here about STM32F4 and priorities: www.freertos.org/RTOS-Cortex-M3-M4.html

Double-check the pins, I don't know what profile you are using.

Update the FreeRTOS to the V8.2.3.

These 3 things solved my hard fault problem.

0 Toby Isaacs over 9 years ago in reply to linas rudalevicius

Prodigy 40 points

Did you have to change the priorities at all in he demo project? If so what to?

Currently trying the AUD profile so all the jumpers are in the discovery mode.

I'll try updating the RTOS.

Thanks for your help.

0 linas rudalevicius over 9 years ago in reply to Toby Isaacs

Prodigy 160 points

From FreeRTOS page: If you are using an STM32 with the STM32 driver library then ensure all the priority bits are assigned to be preempt priority bits by calling NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4 ); before the RTOS is started.

0 Toby Isaacs over 9 years ago

Prodigy 40 points

I've managed to get it to work.

The issue is with the default project the port.c file is from the Cortex ARM_CM3.
If you change it to one in the ARM_CM4F folder and change the include directory in the project options it should work.
You may also need to change the HCITRANS include directory to the non DMA one.

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CC2564 with STM32F4 Discovery and FreeRTOS, demo project causes hard fault