BLE Long Range using nRF52840

[Ajit]

Hi

I am testing long range feature using nRF52840 DK. However BLE 5.0 standard specifies two modes of coded: S=2 (500Kbps) and S=8 (125kps).
I am using SDK 17.0.2 with softdevice s140 17.2.0, I found that device can be set to coded PHY using BLE_GAP_CODED_PHY macro, can not find any option to
configure the device to S2 or S8 mode.

1. What mode is set by BLE_GAP_CODED_PHY?
2. Is there any API which can be used to set prefered coded PHY modes?

Please help me in understanding and suggest how to configure the device in different coded (S2 and S8) modes.

Best Regards,

Ajit

[Einar Thorsrud]

Hi Ajit,

This is not configurable. When using coded PHY, the SoftDevice always transmits on S=8. It seamlessly handles receiving S=2 or S=8, though.

Einar

[Ajit]

hi Einar

Thanks for the reply. I understood that with softdevice it is not configurable.
Is there any example(without softdevice), in which device is being configured to 125Kbps/500Kbps PHY?

Best regards,

Ajit

[Einar Thorsrud]

Hi Ajit,

We do not have any examples with or without the SoftDevice that demonstrate transmitting with S=2. Also, we do not have any Bluetooth stack that supports it at the moment. The other Bluetooth stack we provide is in context of the nRF Connect SDK, but there it is also currently not possible to select S=2 (see this thread).

Einar

[Ajit]

Hi Einar

Thank you for the information.

Best Regards,

Ajit