PHY update has no effect

[Paddy]

I'm attempting to change phy in a program based on the UART example and am following the same process used in the att_mtu_throughput for changing PHY.

Calling sd_ble_gap_phy_request appears to be successful, a BLE_GAP_EVT_PHY_UPDATE is generated with successful status field (0), however the tx and rx phy fields never change.

What could cause this?

Boards: nrf52840pdk

SDK: 14.2

SD: 140 5.0.0-2

[ketil]

Hi,

Could you please provide a code snippet? Is it the central or peripheral that initiates the change?

Ketil

[Paddy]

Thanks for your reply, I just went to post some code and realised I wasn't checking the return value of sd_ble_gap_phy_request. I'm getting "ERROR 17 [NRF_ERROR_BUSY]" which would explain the problem, though it seems odd to me that the PHY_UPDATE event is still triggered.