HCI controlling interface nRF52

RE: HCI controlling interface nRF52

Håkon Alseth — Thu, 24 Nov 2016 09:41:19 GMT

Hi Oleg, Glad to hear that it's working! I have tested the hci_uart example from zephyr and it's good to hear that nimble also works out-of-the-box! It's important to check the pinout and map this correctly, as both mynewt and zephyr defaults to the nRF52-DK pinout for UART communication.

Cheers, Håkon

RE: HCI controlling interface nRF52

Oleg — Wed, 23 Nov 2016 17:35:59 GMT

After I modified the mynewt OS sources for our own nRF52 BOARD, NimBLE (HCI H4) works PERFECT under embedded Linux. Tnaks you for all dear Nordic Engineers!

RE: HCI controlling interface nRF52

Oleg — Wed, 23 Nov 2016 10:40:27 GMT

NimBLE (example) does not works with blueZ , I checked with Oscilloscope , TX sends but NO answer from nRF52... only just it's blinkig LED1 project works good.

RE: HCI controlling interface nRF52

Oleg — Tue, 22 Nov 2016 12:26:47 GMT

OK, thanks you i'll try both...

RE: HCI controlling interface nRF52

Håkon Alseth — Tue, 22 Nov 2016 12:21:48 GMT

Note that NimBLE and zephyr are two different open-source code-bases, and therefore have differences between each other. They are not based on the SoftDevice, but on two different open-source bluetooth LE stacks.

I have not tested the HCI-examples in these projects, but they are supposed to work with linux as a bluetooth LE HCI device.

RE: HCI controlling interface nRF52

Oleg — Tue, 22 Nov 2016 12:14:03 GMT

does NimBLE ( Zemphyr ) fully supports bluez ? We need concurrently co-existing Peripheral & Central roles like in FN-LINK HCI or S132. I'm guessing, nRF52 abilities have more limited by SDK but not by nRF52 HW.

RE: HCI controlling interface nRF52

Håkon Alseth — Tue, 22 Nov 2016 10:55:23 GMT

The transport layer, meaning the physical layer, is supported, but the actual commands that goes over is not compatible with linux. There is a serialization protocol available from Nordic, but it is not pluggable into linux. Zephyr and NimBLE is compatible with the linux bluetooth stack bluez.

RE: HCI controlling interface nRF52

Oleg — Tue, 22 Nov 2016 10:36:51 GMT

sorry I'm a little confused... , Nordic does not prov. example, but DOES fully provide HCI ? I found (in SDK 12.1.0) the HCI Transport module:

QUOTE: "... HCI transport module implementation. This module implements certain specific features from the three-wire UART transport layer, defined by the Bluetooth specification version 4.0 [Vol 4] part D. ... "

and from BT official spec.:

is SDK 12xx HCI compatible with BT official UART HCI ? does SDK12 supports HCI fully ?

RE: HCI controlling interface nRF52

Håkon Alseth — Tue, 22 Nov 2016 09:10:26 GMT

Hi Oleg,

Nordic does not provide a HCI example, but there are other options that do. In addition to the answer from Vidar, you can look at this Zephyr as well. Zephyr has included a HCI (UART) example for the nRF5-series in their upcoming v1.6.

The project is located in ../samples/bluetooth/hci_uart/

Cheers, Håkon

RE: HCI controlling interface nRF52

Vidar Berg — Tue, 22 Nov 2016 09:09:21 GMT

Please have a look at this thread.