How to unprovision nrf Mesh DK board using the hardware?

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Tue, 01 Oct 2019 11:32:02 GMT

Great :D

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Tue, 01 Oct 2019 10:50:05 GMT

thanks it worked !

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Tue, 24 Sep 2019 14:53:43 GMT

Have you looked at the code ?

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Mon, 23 Sep 2019 09:46:43 GMT

Hello ,

is button#4 correct for unprovisioning the node/Please confirm

Thnx

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Tue, 12 Mar 2019 09:53:38 GMT

Hi Brad,

When you see an error, you can use addr2line to translate the address to the line of code for further debugging. Or you can step inside mesh_stack_config_clear() to see what exactly throwing error.

Have you tested the light switch server example to press button 4 on the board to erase provisioning data ?

RE: How to unprovision nrf Mesh DK board using the hardware?

BubDev — Mon, 11 Mar 2019 20:48:48 GMT

Hi Hung,

I am attempting to reset a provisioned node inside the main function. I took your advice and used the code from the light switch server example (as seen below). Whenever this gets called however I am getting a mesh weak error "app_error_weak.c, 108, Mesh assert at 0x0002BFEE (:0)". I am on the latest SDKs. I figured out that the function causing the error is "mesh_stack_config_clear". Any ideas on why this might be happening or any ideas on another way to reset a provisioned board from the main?

 if (mesh_stack_is_device_provisioned())
            {
#if MESH_FEATURE_GATT_PROXY_ENABLED
                (void) proxy_stop();
#endif
                mesh_stack_config_clear();
                node_reset();
            }
            else
            {
                __LOG(LOG_SRC_APP, LOG_LEVEL_INFO, "The device is unprovisioned. Resetting has no effect.\n");
            }

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Fri, 08 Mar 2019 08:54:55 GMT

Yes, button 4 (3 in the code in button_event_handler() ). I'm referring to lightswitch example.

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Thu, 07 Mar 2019 17:26:32 GMT

and please note consider that I dont have access to source code but only the binaries.

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Thu, 07 Mar 2019 17:25:35 GMT

Hello ,

I had a look at it but I am not getting how it is related with my question?

My question is simple

"Is there any hardware button on the nrf5832 evaluation board which can un-provision the board" ?

Yes or No.

If Yes , then How?

many thanks in advance !

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Thu, 07 Mar 2019 09:53:23 GMT

Hi Raul,

My mistake, the node_reset() only restart the node (CPU reset) not erasing the provisioning data.

Provisioning data can be erased using mesh_stack_config_clear() ( this is what used in handle_node_reset -> apply_reset() )
You can refer to button 3 handler in button_event_handler() in light switch server.

No, power reset won't unconfigure the device.

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Wed, 06 Mar 2019 17:08:15 GMT

yes its like :

node_reset> mesh_stack_device_reset> device_reset> hal_device_reset

void hal_device_reset(uint8_t gpregret_value)
{
#if defined(SOFTDEVICE_PRESENT)
(void) sd_power_reset_reason_clr(RESET_REASON_MASK); /* avoid wrongful state-readout on reboot */
#if defined(S130) || defined(S110)
(void) sd_power_gpregret_set(gpregret_value);
#elif defined(S132)
(void) sd_power_gpregret_set(gpregret_value, RESET_REASON_MASK);
#endif
(void) sd_nvic_SystemReset();
#else
NRF_POWER->RESETREAS = RESET_REASON_MASK; /* avoid wrongful state-readout on reboot */
NRF_POWER->GPREGRET = gpregret_value;
NVIC_SystemReset();
#endif
NRF_MESH_ASSERT(false);
}

So as per this , power reset (from the hardware) will unconfigure the device? Plz elaborate.

Br,

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Wed, 06 Mar 2019 10:12:32 GMT

Hi Raulp,

Have you checked the node_reset() function I pointed to ? It's located in main.c in the lightswitch server example .

RE: How to unprovision nrf Mesh DK board using the hardware?

raulp — Tue, 05 Mar 2019 18:06:55 GMT

This is clear. I want to know is there a button on a board which can unprovision the board?And how will I come to know about this?

RE: How to unprovision nrf Mesh DK board using the hardware?

Hung Bui — Tue, 05 Mar 2019 16:03:29 GMT

Hi Rp,

In our app when you click remove node, we will send a "Node Reset" 0x8049 message to the client server on the node to reset the node.

In the nRF52 code you can find the code to handle that message in handle_node_reset(); and node_reset().

If you want to reset a node locally, you can also call node_reset() in your code, either trigger by hardware or command line (if you have an interface).

Note that, this won't tell the provisioner to remove the node itself. I don't think there is a way a node can notify that it's leaving the network. But you can always define your own protocol to do so.