Linux device driver for nRF7002

[Leo Liu]

Hi,

I'd like to evaluate Linux device driver for nRF7002; refer to 315431, I'd found this requirement had been reported one and half year ago; based on 315431, I have a few further questions:
c1. how to download the image of Ubuntu 22.04.3 LTS server variant (native to RPi4)? The hyperlink is disappeared; could you please provide a archived for downloading?
c2. is there a way to purchase the interposer board (i.e. RPi4B_interposer, PCA64167)? Or, have I to manufacture it using the Gerber file on Github repo?
c3. how to assembly nRF7002-DK, PCA64167, and Raspberry Pi 4 SBC? Is there a picture/photo for reference?

Thanks.

[Håkon Alseth]

Hi,

 

c1. how to download the image of Ubuntu 22.04.3 LTS server variant (native to RPi4)? The hyperlink is disappeared; could you please provide a archived for downloading?

Please see ubuntu's website for downloading ubuntu server images:

https://ubuntu.com/download/server

 

c2. is there a way to purchase the interposer board (i.e. RPi4B_interposer, PCA64167)? Or, have I to manufacture it using the Gerber file on Github repo?

This is not a PCB that is available for purchase, unfortunately, as described in the repository:

https://github.com/NordicPlayground/nrf70-linux-driver/tree/main?tab=readme-ov-file#hardware

 

c3. how to assembly nRF7002-DK, PCA64167, and Raspberry Pi 4 SBC? Is there a picture/photo for reference?

No, there is not, but if you look at the drawings:

https://github.com/NordicPlayground/nrf70-linux-driver/blob/main/boards/RPi4B_interposer/pca64167_schematic_and_pcb.pdf

 

P5 goes on top of the "GPIO header" of the RPI 4.

 

Kind regards,

Håkon

 

[Leo Liu]

Hi Håkon,

c1a. No, you misunderstood my concern; there is Ubuntu 24.04.2 LTS for downloading now, but, there is no Ubuntu 22.04.03 LTS, such exact version is required in ReadMe file. Thus, could you please provide an archived file of Ubuntu 22.04.03 LTS for downloading?
c2a. Sure; unable to purchase.
c3a. Sure; neither picture nor photo, but it had described in schematic.

Thanks.

[Håkon Alseth]

Please see the former link for ubuntu.com. You will then see that the latest LTS in the 22.xx-release is 22.04.5.

 

Kind regards,

Håkon

[Leo Liu]

Hi Håkon,

c1a.

Ubuntu 22.04.5 LTS is different from Ubuntu 22.04.3 LTS on kernel. You may refer to the following paragraph or this link.

Ubuntu 22.04 LTS initially shipped with the old Linux 5.15 LTS kernel series. The new Linux 6.5, set to be the foundation for Ubuntu 22.04.4 LTS, facilitates smoother installations on contemporary hardware, providing an optimal experience for those adopting the long-term supported Jammy Jellyfish series on new computers.

Linux device driver does depend on the kernel version, it means the exact Ubuntu 22.04.3 LTS would be needed, and it would be the statement emphasized in ReadMe file.

Ubuntu 22.04.03 LTS (64-bit) comes with 5.15.0-1037-raspi Linux kernel

So, this is why I said that the archived file of Ubuntu 22.04.3 LTS is needed, especially such version is no longer existing on Ubuntu official web site.

p.s. of course, suppose the device driver could be built under new kernel, it's fine.

Thanks.

[Håkon Alseth]

Hi,

 

Try this:

https://old-releases.ubuntu.com/releases/22.04.3/

  

Kind regards,

Håkon

[Leo Liu]

Hi Håkon,

c1a.
This link, especially for ubuntu-22.04.3-preinstalled-server-arm64+raspi.img.xz, seems workable. I'll check it later.

Thanks for your support.

[Håkon Alseth]

Great to hear that you found it. I hope you have a wonderful day!

 

Kind regards,

Håkon