Is the Compute Module 5 supported? Currently playing around with a CM5 and IO Board. Tried a new project with MIX_TARGET=rpi5 mix firmware.burn. In the end I cannot connect to the rpi. No HDMI output no nothing. All I can see is that the red power led turns on on power connect, then turns off and th…

CM5 support is in the nerves_system_rpi5 v0.4.1 release. In theory, you should just need to update your project dependencies, rebuild, and try the new firmware. See Release v0.4.1 · nerves-project/nerves_system_rpi5 · GitHub for the change notes.

Wow, you got a CM5 quickly! I don’t have one, but I know at least one issue. It’s fixed in Add CM5 device tree files · nerves-project/nerves_system_rpi5@bec066a · GitHub , but that change has not been posted in a release. You could build nerves_system_rpi5 main. You’ll need to comment out or delete…

Wow, you got a CM5 quickly! Ok. I was not aware that it is that new., or rare? Just thought, why not. Let’s give it a try. Not sure if I get everything you wrote, but I get the idea. Let me tinker a bit with that and hopefully I get something working, before the regular live (day ob) takes over …

Pardon me, as I might have to ask some very basic questions, as I never dealt with these things on that level. An easier option to try is to mount the MicroSD card in your computer. You should see a bunch of .dtb files I suppose the card in question is the one I burned the nerves firmware to. In…

Hmm… This is going to be tough to debug remotely. It looks like I’ll have access to a CM5 in about a week or so. We’ll get this working. If you want to push onward, the only files that Nerves customizes in that filesystem are config.txt, cmdline.txt, and kernel8.img. When I’m desperate, I just copy…

Pulled that updated nerves system and will try compiling and see how it does. I ran into the exact same thing with my FTDI cable not giving me a serial to know why it power-cycled on the IO board.

Built that updated system and it still just power-cycles. Nothing over serial, not getting a /dev/ttyUSB0 to connect something to. Maybe I just killed my serial cable :person_shrugging: When running the flashing process via usbboot: sudo ./rpiboot -d mass-storage-gadget64 Then I do get a persiste…

[image] lawik: I also get HDMI flickering on an displaying black before it restarts with the Nerves system. So not nothing. Well, sorry. Same for me. No output at all, but the HDMI brightens up a bit, and then turns completely black on cycle. Basically same as for me. At least relieved it’s …

I still don’t have a CM5, but I did update nerves_system_rpi5 with Linux 6.6.64 and the new device tree files. If it’s convenient for anyone to test the main branch, I’d be curious if that helped.

It works! On this branch currently: Add missing overlay needed for the CM5 by fhunleth · Pull Request #44 · nerves-project/nerves_system_rpi5 · GitHub

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Compute Module 5 supported?

Questions & Help Questions

lawik January 4, 2025, 10:10pm 4

Oh, right. I got one of those but didn’t have time to try it. I should