How to get SoftDevice crash informations?

[nevi]

Hi,

I've got a custom board with nrf52832 mcu. I use the nRF5_SDK_16.0.0_98a08e2 with s132_nrf52_7.0.1_softdevice.hex.

Sometimes the app_error_fault_handler is called from the address space of SoftDevice. The arguments I get:

id: 1 => NRF_FAULT_ID_SD_ASSERT 

pc: 0x172C0

info: 0

Where can i find more information about this error?

Thanks,

nevi

[Sigurd]

An assert at that address means the SoftDevice was not able to perform all required actions within a timing constraint. Most likely the SoftDevice has been prevented from executing.

Possible reasons includes:

• not releasing a timeslot before it expires
• excessive disabling of interrupts
• halting at breakpoint during debugging, then resuming execution

Are you using timeslots, and/or disabling interrupts from the application?

[nevi]

I found an nrf_libuarte_drv_config_t struct whose irq_priority field accidentally remained at the default (zero) value.

The libuarte slightly slow interrupt handler may have caused the problem at the highest priority.

I changed the irq_priority filed to APP_IRQ_PRIORITY_LOW and the problem has not occurred since.