SOFTDEVICE: ASSERTION FAILED AT 0x000169a8

[Thanos]

Hi,

I get sporadic softdevice assertions at the address above. I am using S132, SDK15.2.0 on nRF52832 custom board, and the problem started when I added LoRaWAN functionality to a (stable until then) application. Any ideas where this error come from would be highly apprecited.

Thank you,

Thanos

[Edvin]

Hello,

The assert is related to the radio and timing. 

# ASSERT(radio_enable_time_us > NRF_TIMER0->CC[HAL_DEF_PA_LNA_CC_INDEX]);

(I don't have access to the full source code, so I don't know more than this line). 

What changes did you apply when the asserts started to occur?

BR,

Edvin

[Thanos]

So, it is a timing issue.

Tested again after temporarily disabled critical sections: no more assertions since then. It seems that IRQs were masked for too long.

Finally, switching from __disable_irq( ) to app_util_critical_region_enter()/exit() solved the issue.

Many thanks for your support,

Thanos