Assertion in access_model_publish(), after setting publish address

[frank1]

Hi everyone,

I'm migrating my project from nrf sdk for Mesh v2.1.1 to v5.0.0. To do this, I build my code on the light switch client example from nrf sdk for mesh v5.0.0.

my setup:
- own PCB with the nrf52832 chip (but same problem occurs with an nrf52DK)
- segger embedded studio for ARM V5.40a
- nrf sdk for mesh v5.0.0 (is currently v2.1.1)
- nrf mesh android app v3.1.1

The problem:
The node sends a message to the provisoner whenever the node resets (using the function access_mode_publish() in access.c). No messages are send until the subscription address is set (which is correct). But after I set the application key and subscription address with the nrf mesh app, the program gets an assert when it sends the message. It goes to the error handler.
(I've tested this in nrf sdk for mesh v4.2.0 and v3.0.0 as well, but I get the same problem).

I have been debugging this problem and I found out that the assert happens in the timer_scheduler.c here:

If I'm correct, this means that an irq priority is not set correctly. But I have set all irq priorities to 6 (NRF_MESH_IRQ_PRIORITY_LOWEST), so I don't know why this gives the problem.

I've been looking in the migration guides and release notes, but I couldn't find anything that could help me with this problem.

So my question is: How can I solve this irq priority problem?

If there is any information missing, please let me know.

[frank1]

Hi,

I changed the priority to NRF_MESH_IRQ_PRIORITY_THREAD (15), but the nrf resets when I try to connect to it. The _IRQ_PRORITYs in sdk_conifg.h are not for mesh, so it doesn't have to do with this problem, does it? These are all set to 6 (= NRF_MESH_IRQ_PRIORITY_LOWEST).

I also tried with the second link you send me, but the nrf resets when trying to send the first provisioning packets. It says that the APP_SHED_QUEUE_SIZE should be 32 when there is minimum to no additional user code within the main loop. So I increased that size, but it still resets when I send the first provisioning packets. I have APP_SCHED_EVENT_SIZE set equal to APP_TIMER_SCHED_EVENT_DATA_SIZE, which has a value of 8.

[Mttrinh]

Hi,

Sorry for the late reply.

Have you had any progress to this issue?

[frank1]

Hi,

Sorry for my late response. (I had some trouble logging in, but that's solved now.)

Unfortunately I did not have any progress regarding this issue.
For my previous question (repeated below for your convenience), is my assumption correct?

I changed the priority to NRF_MESH_IRQ_PRIORITY_THREAD (15), but the nrf resets when I try to connect to it. The _IRQ_PRORITYs in sdk_conifg.h are not for mesh, so it doesn't have to do with this problem, does it? These are all set to 6 (= NRF_MESH_IRQ_PRIORITY_LOWEST)

[Mttrinh]

Hi,

Yes, your assumption is correct. Can you try to debug the code, do you get any error codes when trying to connect? Set the DEBUG define before debugging. 

[frank1]

Do you mean this with the DEBUG define?

If so, i see that the nrf gets a soft reset during connecting (NRF_POWER->RESTREAS == 0b100)

Note that this happens when I changed the priority to NRF_MESH_IRQ_PRIORITY_THREAD (15). If I use NRF_MESH_IRQ_PRIORITY_LOWEST (6), this does not happen. Then I get no errors during connecting and provisioning.