nRF21540 implementation on a nRF52840 without OS

[Dominik Eugster]

Hi

I'm looking for an example implementaion code on the nRF52840 without an operating system. Is there some example or application note?

I connected the SPI and all IO Pins. I have no Zephyr code.

Regards

[Sigurd Hellesvik]

Hi

When you say "without an operating system", what do you mean?

If you wonder which SDK to use between the nRF Connect SDK and the nRF5 SDK, see our  nRF Connect SDK and nRF5 SDK statement.
For new designs, the nRF Connect SDK is recommended for new designs.

Regards,
Sigurd Hellesvik

[Dominik Eugster]

Hi Sigurd

I have a running c-code with BLE Mesh functions. Now I added the nRF21540 and like to implement the driver, but can't find the instructions how to do this. I think there are some files and functions to add to the project and like to refer to a example project.

Regards

[Sigurd Hellesvik]

Hi

Dominik Eugster said:

I have a running c-code with BLE Mesh functions.

I think this means that you do use neither the nRF5 SDK nor the nRF Connect SDK.

Dominik Eugster said:

refer to a example project.

No, we do not have any examples for using the nRF21540 outside the nRF Connect SDK as far as I know.

However, I think our Front-end module feature nrfx driver should be usable outside the OS as well. You could also try to search our git for 21540 and Front End Module(FEM): https://github.com/nrfconnect/sdk-nrfxlib.

To have a look into how it works , you could for example have a look at our Bluetooth: Peripheral UART sample in the nRF Connect SDK, as it supports use with the nRF21540.

Regards,
Sigurd Hellesvik

[Dominik Eugster]

I mean I need to call mpsl_fem_nrf21540_gpio_interface_config_set to config the driver. To use this command, I need to know when I have to call it and which files I have to add to my project (c. h. and maybe *.a files). Do I have to add the files manually into my project and read the complete docu to know when I have to call this? Or is there any example which is working similar? I can't believe that I am the first person which is working with a nRF21540 on a nRF52840 and likes to use this hardware driver or maybe I can't find the relevant docu.

[Sigurd Hellesvik]

Hi

Most other people working with our microcontrollers use either the nRF5 SDK or the nRF Connect SDK.
To avoid misunderstandings, can you answer the following question?

Which of the three alternatives listed under don you use for software developement:

1. The nRF Connect SDK

2. The nRF5 SDK

3. Neither of the above

If you answer question 3, please also answer the following question:

Are you able to you link me to the BLE Mesh implementation you are using for your project?

Regards,
Sigurd Hellesvik