Hi Silvia, If it is getting back to 1M during transmission that means remote side did it, however if you use Mynewt on both sides that would be odd as Nimble controller does not change PHYs if not requested by Host.
In btshell, the `phy-set` command takes TX and RX mask, did you try to mask out other PHYs and set just 2M on your connection? Also it would be useful to see HCI logs so we know more what host is doing. One of the way to grab them is described here: https://www.codecoup.pl/blog/support-for-btmon-in-mynewt/ Best Łukasz On Thu, 9 May 2019 at 09:09, 林詩芸 <[email protected]> wrote: > Hi everyone, > > I'm new to mynewt and I'm trying to increase throughput using btshell and > bleprph example app. > The default PHY is 1M. Does someone know how to change PHY to 2M? > I used ble_phy_mode_set(), but it seems that the PHY will get back to 1M > during data transmission. > > Silvia >
