Hey Nordic devzone,
I am tinkering with the following multiprotocol examples: ble_thread_dyn_mtd_coap_cli (client) ble_thread_dyn_template (server)
Currently the client can be controlled using the BSP buttons or a smartphone with the nordic toolbox apps.
When I press a BSP button 2 on the client a multicast message gets send out to the servers to turn on the light. I have altered the ble_thread_dyn_template to setup a connection with a thingy52, on when it does it sends out a multicast message with the thingy52 MAC address and the IPv6 peer address. Only this message is only captured by all the other servers not the client in this case.
I altered the function :
static void thread_coap_init(void)
{
thread_coap_configuration_t thread_coap_configuration =
{
.coap_server_enabled = true,
.coap_client_enabled = false,
.coap_cloud_enabled = false,
.configurable_led_blinking_enabled = false,
};
thread_coap_utils_init(&thread_coap_configuration);
}
To set the coap_server_enabled to true, where before the coap_client_enabled was set to true. My application still works the same but the ble_thread_dyn_mtd_coap_cli example is still not picking up my multicast messages.
It most likely has to do with the scope in the function : thread_coap_utils_multicast_light_request_send
switch (scope)
{
case THREAD_COAP_UTILS_MULTICAST_LINK_LOCAL:
p_scope = "FF02::1";
break;
case THREAD_COAP_UTILS_MULTICAST_REALM_LOCAL:
p_scope = "FF03::1";
break;
default:
ASSERT(false);
}
If i check the IPv6 thread addressing site I can see the following multi cast adressing 'domains'
ff02::1 Link-Local All FTDs and MEDs
ff02::2 Link-Local All FTDs and Border Routers
ff03::1 Mesh-Local All FTDs and MEDs
ff03::2 Mesh-Local All FTDs and Border Routers
Would I need to alter the switch to include any of the other multicast scopes?
Thanks in advance for any tips
