[ZIGBEE] How to send "rejoin" request?

RE: [ZIGBEE] How to send "rejoin" request?

_maibi — Tue, 23 Feb 2021 00:32:14 GMT

Any updated?

RE: [ZIGBEE] How to send "rejoin" request?

_maibi — Thu, 18 Feb 2021 08:06:03 GMT

Hi, Can you check my sniffer log?

I found a broadcast packet of switch key. but the zed doesn't have any action. after this, the zed lost connection with the coordinator.

devzone.nordicsemi.com/.../switch_5F00_key.pcapng

additionally, How can I register callback receive APS?

RE: [ZIGBEE] How to send "rejoin" request?

_maibi — Wed, 17 Feb 2021 11:47:27 GMT

Hi, summarize my questions.

1) how can I manipulate refresh key of the coordinator? after this, My zed doesn't receive response of the coordinator.

the zed is disconnected, but ZB_JOINED returns true.

2) I wants to know the function which start rejoin procedure directly.

RE: [ZIGBEE] How to send "rejoin" request?

Marjeris Romero — Wed, 17 Feb 2021 11:16:49 GMT

Hi,

I am not sure if I understood what you are asking for correctly, but the default signal handler will call start_network_rejoin() after ZB_ZDO_SIGNAL_LEAVE is called. See zigbee_default_signal_handler() in zigbee_helpers.c:

        case ZB_ZDO_SIGNAL_LEAVE:
            /* This signal is generated when the device itself has left the network by sending leave command.
             *
             * Note: this signal will be generated if the device tries to join legacy Zigbee network and the TCLK
             *       exchange cannot be completed. In such situation, the ZB_BDB_NETWORK_STEERING signal will be generated
             *       afterwards, so this case may be left unimplemented.
             */
            if (status == RET_OK)
            {
                zb_zdo_signal_leave_params_t * p_leave_params = ZB_ZDO_SIGNAL_GET_PARAMS(p_sg_p, zb_zdo_signal_leave_params_t);
                NRF_LOG_INFO("Network left (leave type: %d)", p_leave_params->leave_type);

                /* Start network rejoin procedure */
                start_network_rejoin();
            }
            else
            {
                NRF_LOG_ERROR("Unable to leave network (status: %d)", status);
            }

You can read more about the Zigbee network rejoining procedure by the default handler here: https://infocenter.nordicsemi.com/topic/sdk_tz_v4.1.0/zigbee_application_reference_component.html?cp=7_3_3_5_0_5#zarco_network_rejoin

If you want to control the rejoining procedure by the application you need to handle each signal in which the Zigbee network rejoin procedure is managed by the application. Use start_network_rejoin() to start the rejoining procedure.

BR,

Marjeris