PA / LNA support in S140

[Hamid]

Would you please provide an example of using PA/LNA with nRF52840 (Softdevice S140) on SDK 15.0 or higher?

Unfortunately, I could't manage the code you've provided for the other softdevice to work properly with S140:

https://devzone.nordicsemi.com/b/blog/posts/pa-lna-support-in-s132

As soon as I initial PA/LNA the softdevice stops working.

I'm wondering If you can provide a sample code like what you did before but this time on S140.

 Thanks

[bjorn-spockeli]

You'll find the modified example below. NOte: It should be extracted into the nRF5_SDK_15.0.0_a53641a\examples\ble_peripheral folder

ble_app_blinky_pa_lna.zip

 

[Hamid]

Thanks for the posted code. By using your code I've figured out the source of the problem. It seems any time I assign PA or LNA controls to any pin in PORT1 (P1) the softdevice stops working but it works very well with PORT0 !

Could you please check this behavior and confirm?

[bjorn-spockeli]

Hi Hamid, 

the S140 v6.0.0 only supports the GPIO port 0 pins for PA/LNA on the nRF52840. 

The S140 v6.1.0 supports the use of GPIO port 1 pins (P1.00 to P1.15) for PA/LNA on the nRF52840, please refer to the S140 v6.1.0 release notes. 

Best regards

Bjørn