nrf mesh Softdevice assert: 88996:0

[Oleh]

Hello there,

we get the following assert:

"00> <t:     480881>, app_error_weak.c,   98, Softdevice assert: 88996:0"

The board is rebooting constantly after 3 ... 7 minutes of work. What could be that 88996?

What is in use:

- nrf sdk 17

- nrf mesh sdk 5

- sending mesh data to uart-usb

- have RTT viewer for logging

- there are few nodes in mesh (5 nodes, no heavy traffic there)

The thing is, when it works -- it works, then it enters this loopy and never gets out.

[Hung Bui]

Hi Oleh, 

I assume you are using S140 v7.2.0 ? 

The softdevice error 88996 suggests that it's a RADIO interrupt issue. Could you give some more information about your application ? 
I would suggest to try testing remove functionalities (reduce any traffic) and gradually add them back to see at which point the assert occurs. 
Have you made sure you followed the priority configuration described here ? 

[ipshiv]

Good day!

We've configured prio according to link. With only one difference: app timer works without scheduler (only mesh events use it). This gives us better performance during provisioning.

Peripherals: TWI (APP_IRQ_PRIO_HIGH), UARTE (APP_IRQ_PRIO_LOW).

The problem occurred after switching to negative tx power in advertiser.c and scanner.c

[Hung Bui]

Hi Ivan, 

Could you show how you change the TX Power in advertiser.c and scanner.c ?
Could you verify if you remove those change the device works stably for a long time ?