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I would like to upgrade the Pi 4 module in my G2 to a pi 5. I want to install the Bookworm 64-bit OS. Are there any Pi guru's that can post how to configure P2 app and Pi HPSDR on the OS. Thanks Vin KD1GA

Hi Vin,

Laurence may jump in here, but as I recall you compile P2app yourself, so chances are that it would work with CM5. You may have to search this site for updated compile instructions.
Please let us know what you find out. I'm sure a lot of people would like to upgrade. My G2 Ultra came with a cheesy 1 GB of RAM.

73 de va7qi, ....Erik.

Okay, thanks for the response. I'll look more closely; hopefully, Lawrance does jump in, as my Linux skills are lacking at best. I order the Pi5 module with 8 GB of RAM and a 32 GB eMMC and also have a lite if I decide to stick with the micro SD. I'm sure the Pi 4 is fine for just the P2 app, but man, all other apps on the desktop are really slow. Testing the Pi5 on an I/O board now, and it's amazingly fast, but it generates a ton of heat. I grabbed an active cooler, and it really helps. Not sure where on the G2 i'll be able to grab power for it, but one thing at a time

Have you seen this topic that discussed a successful swap out of the CM4 for a Radxa CM5?

viewtopic.php?f=48&t=5162

w-u-2-o wrote:Have you seen this topic that discussed a successful swap out of the CM4 for a Radxa CM5?

viewtopic.php?f=48&t=5162

No I missed that. Thanks a bunch!!!!

I haven't experienced an upgrade to either processor, yet. Other developers more skilled in linux kernel builds have been focussing on that.

The Raspberry pi CM5 is, as far as I know, a pretty simple swap-in. All the existing interfaces should work.

The Radxa CM5 is more complicated, because it uses a quite different processor chip. The physical interfaces to a front panel (G1 or G2) are different. if you have no front panel, then that's not an issue. If you have a V1 front panel, I created an interface adapter using a Waveshare board equivalent to a piZero microcontroller. If you have a V2 front panel, then it needs to be swapped over to using USB not serial. There is also an issue whereby the 8" display driver fails to start some of the time, for reasons that haven't been resolved.

The XDMA device driver should work with any of these options. It has been upgraded to get up to at least V6.13 of the kernel.

Hopefully Apache Labs will commit to one or other upgrade path (we discussed it a few days ago) and then everything will become clearer.

laurencebarker wrote:There is also an issue whereby the 8" display driver fails to start some of the time, for reasons that haven't been resolved.

My apologies - Martin CT1IQI tells me that issue was resolved with a change to the device tree when building the linux kernel.

Thanks, Lawrence, for taking the time to respond, and thanks so much for all your great work. I guess I'll try to compile everything on Bookworm and see what happens. If you hear of of Pi 5 G2 blackface image floating around, please let me know

I have an image ready to go for the CM5 G2 with NO DISPLAY.
Email me.

I will post the procedure for creating a new uSD card shortly on this forum.
Steve - AE2S