LESC Numeric comparison

RE: LESC Numeric comparison

KV — Wed, 20 Dec 2017 23:45:03 GMT

I have tried my peripheral application with nRF Connect desktop app (Windows) also. As soon as I confirm the numeric pass code (pressing match button on the nRF connect), the board connected to my PC gets disconnected.

RE: LESC Numeric comparison

KV — Wed, 20 Dec 2017 16:12:11 GMT

When this happens, resetting the processor is the only option. My CLI does not respond and when I pause the debugger, I see Hard fault exception as below: (I am using IAR IDE).

HardFault exception. The processor has escalated a configurable-priority exception to HardFault. An instruction executed with an invalid EPSR.T or EPSR.IT field. Exception occurred at: 0x2000009c8

Address at which exception occurred is different each time. May be the hard fault happened because I paused the debugger. The breakpoint in app_error_fault_handler was not hit during the execution.

I have created a case ID 41028 with attached sources. I followed the multi role lesc example as reference for this application. The only difference is I am enabling the HW crypto. There was no multi role lesc example for nRF52840 and IAR.

RE: LESC Numeric comparison

Petter Myhre — Wed, 20 Dec 2017 15:56:44 GMT

I have to ask. You are sure you are getting a hard fault? It is a bit difficult to know what is going on by only looking at the logs. Have you tried to debug? Narrow down when this hard fault actually happens? Did you use this as a starting point?