How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

harsheshvalera — Mon, 22 Apr 2024 16:55:58 GMT

Amanda Hsieh thank you very much. It really means a lot for us.

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

Amanda Hsieh — Mon, 22 Apr 2024 14:34:26 GMT

It's supported in the last NCS.

You can take a look at throughput with the settings for BT_CONN_LE_PHY_OPT_CODED_S8 (125kbps) and BT_CONN_LE_PHY_OPT_CODED_S2 (500kbps). and the peripheral_hr_coded supports S8.

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

harsheshvalera — Sat, 20 Apr 2024 02:23:49 GMT

Amanda Hsieh

Is this still the case where you can't use S2 or S8 coded phy with latest nRF Connect SDK?

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

Amanda Hsieh — Tue, 25 May 2021 08:05:22 GMT

Hi Simon,

Currently, the softdevice controller which makes it not possible to set S2/S8 for both sides. We are working on this issue, but there is no timeline to share. Sorry for the inconvenience.

-Amanda H.

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

Simon Third — Sat, 22 May 2021 05:04:30 GMT

Hi Amanda,

Can you provide a timeline for when this issue will be fixed? What might be the SDK release number to look out for?

What coded setting is used for the current working sample? Is it S2 or S8?

Thanks

Simon

RE: How to set Coded PHY rate to S8 or S2 using nRF Connect SDK

Amanda Hsieh — Fri, 21 May 2021 08:47:01 GMT

Hi Simon,

Sorry for the delay.

[quote user=""]how to set or change modes?[/quote]

You could use bt_conn_le_phy_update function to update with bt_conn_le_phy_param.

[quote user=""]I'm guessing that I set the mode I want to connect with on the peripheral side? and how do I tell what the resulting connection is made with on the central side?[/quote]

I think you might need both sides since it only specifies the TX phy. However, there is a known issue with the softdevice controller which is not supported to change the PHY preferred coding in both directions now.

[quote user=""]I get connection values on the console of tx_phy 4, rx_phy 4. What does 4 indicate?[/quote]

Bitmask of transmit PHYs.

-Amanda H.