nrf52840 Bluetooth 5, BLE_GAP_PHY_CODED problem

[ygtyst]

Hi all,

I want to work with Coded PHY on Bluetooth 5.
I tried to change lines on mesh_adv.c file like below, but i getting this error  : app_error_weak.c,  119, Mesh error 7 at 0x00000000 (:0)
I cannot solved this problem, how can i change PHY to BLE_GAP_PHY_CODED , please somebody explain this.
I use nrf5SDKforMeshv310src.
Thanks for advice

static ble_gap_adv_params_t m_adv_params =
{
.properties = {
.type = MESH_ADV_ADV_TYPE,
},
.interval = MESH_ADV_INTERVAL_DEFAULT,
.duration = MESH_ADV_TIMEOUT_INFINITE,
.primary_phy=BLE_GAP_PHY_CODED /*added line*/
};

[ygtyst]

Please, has any advice ?

[Mttrinh]

Hi,

Error code 7 means NRF_ERROR_INVALID_PARAM.

The Bluetooth Mesh is based on BLE 4.0 Specification, so you can't use Coded PHY with Bluetooth Mesh.

[ygtyst]

I am confuse,

Is it nrf5 SDK based on BLE 4? How could be, i am test some examples and its all worked like Bluetooth 5.0, longest range and highest bandwith..

I want to setup mesh network with Bluetooth 5 and test all PHY(1M,2M and Coded), what i am suppose to do for this purpose ?

[Mttrinh]

I think you might be mixing the nRF5 SDK and the nRF5 SDK for Mesh. Our later nRF5 SDKs(SDK v13.0.0 or later) supports BLE 5, while nRF5 SDK for Mesh is based on BLE 4.0. You won't be able to use 2Mbit and Coded PHY with the Mesh SDK as these are BLE 5 features. 

If you want to test these BLE 5 features, I suggest you have a look at this example from the nRF5 SDK: Experimental: ATT_MTU Throughput Example.

Also have a look at these for more information about Mesh:

Basic Bluetooth Mesh concepts

nRF5 SDK for Mesh architecture

[ygtyst]

Ok now  i got it, thank for your help :)