Problem Enabling BT Coded PHY in Training Exercise

[Gerry7998]

Hello,

I'm working through the Bluetooth Low Energy Fundamentals tutorial, Lesson 3 Exercise 2.    In step 9, the training has an optional step to enable Coded PHY.  I have made the changes to main.c and prj.conf as instructed but the PHY will not change to Coded PHY.  

I have attached three screen captures:

1. instructions_for_coded_phy -> instructions from exercise on how to enable Coded PHY

2. main_code_fragment-> shows the changes I made to main.c per instructions

3. prj_code_fragment-> shows the change I made per instructions - by hovering over CONFIG_BT_CTLR_PHY_CODED=y, the dependencies popped up indicated that additional variables need to be set to enable Coded PHY - please advise.

Here is my development setup:

1. Ubuntu 20.04.6 LTS

2. Visual Studio Code Version 1.8.4.2

3. nRF Connect SDK 2.5.0

4. nRF5340-DK 2.0.1

5. Testing with iPhone 13 mini - specs include support for Bluetooth 5.0

Thank you,

Gerry

[Amanda Hsieh]

Hi, 

For nRF5340, it should set the config with hci_rpmsg as this example https://github.com/nrfconnect/sdk-nrf/blob/8e083e07b4351742afb44e2d8a43f26c252f1458/samples/bluetooth/peripheral_hr_coded/child_image/hci_rpmsg.conf

Regards,
Amanda H.

[Gerry7998]

Hello Amanda,

I downloaded the hci_rpmsg.conf file and saved it in the same directory as the prj.conf file.  I created a new build and flashed to the device and it still didnt't work.  Did I put the file in the correct directory?  Is there anything else I need to do with this file?

Thank you,

Gerry

[Amanda Hsieh]

Please place the hci_rpmsg.conf under the child_image folder as that example. 

-Amanda H.

[Gerry7998]

Amanda,

It turns out that the hci_rpmsg.conf was already in the child_image folder.  Are there other variables that need to be set to enable Coded Phy?

Thanks,

Gerry

[Amanda Hsieh]

Hi Gerry,

You can refer to https://github.com/nrfconnect/sdk-nrf/tree/v2.5.0/samples/bluetooth/peripheral_hr_coded sample. 

5. Testing with iPhone 13 mini - specs include support for Bluetooth 5.0

As I know from other cases, iOS does not include support for coded PHY, but it seems that most recent Android phones do. See this in the apple developer forums: https://developer.apple.com/forums/thread/665542

I would suggest testing with Android phones. 

-Amanda H.