Erase Zigbee Connection Params

[inv4]

Hi, what is the correct way to erase all the connection params of a zigbee router device (not coordinator), and restart to search for a network automatically in production?, Ive noticed that when I erase the device from the coordinator and the router is offline, when I power it up again it goes into Joined Network as if it was still part of the network so it wont go into bdb_start_top_level_commissioning, Ive used zb_nvram_clear, but dont know if its correct to use it on production.

Best regards!

[AndreasF]

Hi.

You could use the procedure in the light_control example (examples\zigbee\light_control\light_switch\main.c):

Leave the network and erase connection params:

/**@brief Perform local operation - leave network.
 *
 * @param[in]   param   Reference to ZigBee stack buffer that will be used to construct leave request.
 */
static void light_switch_leave_nwk(zb_uint8_t param)
{
    zb_ret_t zb_err_code;

    /* We are going to leave */
    if (param)
    {
        zb_buf_t                  * p_buf = ZB_BUF_FROM_REF(param);
        zb_zdo_mgmt_leave_param_t * p_req_param;

        p_req_param = ZB_GET_BUF_PARAM(p_buf, zb_zdo_mgmt_leave_param_t);
        UNUSED_RETURN_VALUE(ZB_BZERO(p_req_param, sizeof(zb_zdo_mgmt_leave_param_t)));

        /* Set dst_addr == local address for local leave */
        p_req_param->dst_addr = ZB_PIBCACHE_NETWORK_ADDRESS();
        p_req_param->rejoin   = ZB_FALSE;
        UNUSED_RETURN_VALUE(zdo_mgmt_leave_req(param, NULL));
    }
    else
    {
        zb_err_code = ZB_GET_OUT_BUF_DELAYED(light_switch_leave_nwk);
        ZB_ERROR_CHECK(zb_err_code);
    }
}

To join the network:

/**@brief Function for starting join/rejoin procedure.
 *
 * param[in]   leave_type   Type of leave request (with or without rejoin).
 */
static zb_void_t light_switch_retry_join(zb_uint8_t leave_type)
{
    zb_bool_t comm_status;

    if (leave_type == ZB_NWK_LEAVE_TYPE_RESET)
    {
        comm_status = bdb_start_top_level_commissioning(ZB_BDB_NETWORK_STEERING);
        ZB_COMM_STATUS_CHECK(comm_status);
    }
}

Best regards,

Andreas