Have more than 40 server nodes in light_lightness example.

[Eugene Tan]

Hi, I am using Mesh V4.2.0 and RF52840 light_lightness example. I want to have more than 40 server nodes for one client, but when I increased more than 40 it keeps showing me static assert error under config_server.c file.

The error points to:

NRF_MESH_STATIC_ASSERT(CONFIG_COMPOSITION_DATA_SIZE <=
    (ACCESS_MESSAGE_LENGTH_MAX - ACCESS_UTILS_SIG_OPCODE_SIZE(CONFIG_OPCODE_COMPOSITION_DATA_STATUS) - sizeof(config_msg_composition_data_status_t)));

I have tried editing the size of the config_composition_data_size as well as access_message_length_max to try to fit the equation in this quote. I was able to build it but when I provision it on the Android nRF Mesh app, it got stuck at 'sending composition data get'.

What else should I be changing?

[Mttrinh]

Hi,

You need the change this definition MAX_AVAILABLE_SERVER_NODE_NUMBER, it is set to 40 by default. You can find the definition in nrf_mesh_config_app.h.

[Eugene Tan]

Hi, I've also set the MAX_AVAILABLE_SERVER_NODE_NUMBER to 60 but it still doesn't work.

Is there anything else? 

[Mttrinh]

Hi, 

Just want to clarify something, are you trying to have 60 server models on seperate nodes in the network or 60 server models in a single node? The error you are receiving seems to suggest the latter.