System crash with all core registers value as 0xFFFFFFFF

[bzhang]

Posted on August 17, 2015 at 08:59

I have a system(freeRTOS) running well on stm32f401 platform. To reduce the PowerConsumption, i added a HAL_PWR_EnterSLEEPMode() into the void vApplicationIdleHook( void ). The system will crash in seconds with all core cpu registers(R0-R12, SP LR) value as 0xFFFFFFFF.

1) What kind of error causes it?2) How to even start to debug this issue?

[Tesla DeLorean]

Posted on August 17, 2015 at 14:59

Sounds more like a failure in your debugger.

Instrument your code better, and disconnect the debugger?