app_error_fault_handler with PC=0x1505C

[Sebastien DRI]

Hi Folks,

Any fix concerning this issue cause we are facing the same problem randomly at the same address offset (See Screenshot below).

I saw it could be a overstay issue : RE: Application fault in SoftDevice 

Is this issue inherent to the 7.0.1 version?

As you can see, it is located at 0x1505C and a fault ID of 1 (and info of 0) and the instruction refers to a call to "svc 255" (supervisor call  but unknow id).

I use SDK 16.0.0 with softdevice 7.0.1

I must add that this error occurs randomly in our functionning more precisely when uploading data to the target (which is a peripheral configured in long range mode) from a central so communication is stressed a bit.

[Sebastien DRI]

Hi folks,

Sorry having played dead for so long.

So, I still have the app_error_fault_handler with PC=0x1505C even if SysTick is deactivated and I run from now on a 1ms RTC based.

It occurs randomly and provoke a reset sequence.

I have also removed the softdevice flash write.

Is there a way to find the root cause of this overstay issue?

Best regards

[Hung Bui]

Hi Sebastien, 

Sorry for delayed reply. I think what we should do next is to try reproducing the problem here so we can investigate. 

Could you try to either strip down your application to minimize it but still can reproduce the issue ? 

Or preferably re-create the problem on a SDK's example ? 

This will make it easier to narrow down the root cause. 

Please make sure you are using a production level chip, not an engineering revision.