HCI via UART with nRF5340 DK

[Martinho]

Hi, folks!

We are are using the Nordic nRF5340 DK directly provided by Nordic for evaluation purposes.

We would like to access nRF5340 via HCI over UART to be able to use it with our own test- and prototyping software running on a Windows host.

How do we get this working?

Our focus is on Bluetooth LE Audio use cases. Therefore UART speed also matters.

Is there a way to configure higher baud rates than standard 115.2 kbps?

Thank you.

Best regards,

Martin

[Sigurd]

Hi,

There is no support in Windows for this.

 RE: Windows driver for hci_uart 

[Martinho]

Hi Sigurd,

Our Bluetooth host stack is supporting standard HCI over UART according to the Bluetooth SIG specification.

For instance, we are also working with the Bluetooth SIG PTS dongle based on the Nordic nRF52840.

Also your colleague Thomas Page (regional sales director) explained, that it should be possible to access the nRF5340 via HCI over UART from our Windows system.

The question is, how to configure the nRF5340 DK to route HCI traffic directly from/to our system to/from the nRF5340 controller.

Thank you.

Best regards,

Martin

[Sigurd]

Hi,

Martinho said:

how to configure the nRF5340 DK to route HCI traffic directly from/to our system to/from the nRF5340 controller.

We have a hci_uart sample in nRF Conncet SDK you can test. See these links:

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/samples/bluetooth/hci_uart/README.html

https://github.com/nrfconnect/sdk-zephyr/tree/main/samples/bluetooth/hci_uart

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/getting_started.html