Add MPSL and FEM func in NCS 1.5.0 example

[sean]

Hi

I tried to add the function of FEM to the Peripheral_hids_keyboard example according to the guidance of the link below. But it looks like it failed

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.5.0/nrf/ug_radio_fem.html

nRF52833-DK is used.

The project is modified as follows：

1、modify dts file  C:\Users\zhengxg\ncs\v1.5.0\zephyr\boards\arm\nrf52833dk_nrf52833\nrf52833dk_nrf52833.dts 

2、modify prj file  C:\Users\zhengxg\ncs\v1.5.0\nrf\samples\bluetooth\peripheral_hids_keyboard\prj.conf

3、add some log in mpsl_fem.c file，and modify the main.c file as follows

the log shown as follows

project file

peripheral_hids_keyboard-2.zip

But there is no action on pins P0.17 P0.20.  

May I ask where I set it wrong?

[sean]

Can anyone help me see it?

[Jørgen Holmefjord]

Hi,

Unfortunately, GPIO FEM control is not supported in the softdevice controller in NCS v1.5.0. The support in FEM support in MPSL is only implemented for 802.15.4 Radio driver, OpenThread, and Zigbee. This means that this cannot be used for BLE samples in NCS v1.5.0.

Support have been added to master/v1.5-branch by this pull request, and should be working in NCS v1.5.1 release.

Best regards,
Jørgen