Great news, this is exactly what I’m specifically working on right now!
This is specifically a board for Mainboard replacement purposes, that fits to the top left of the fan. It uses a cheaper USB connector, as there’s no TB4 requirement here. The board is for using the Framework laptop chassis as a KVM, following up on this idea.
6-layer PCBs, Aisler sponsors the first revision. All I have left to do for this one is to get to a place with a lasercutter (ETA 4 days) and check the replacement USB-C port mechanics (specifically, X offset as pictured, so that USB-C card plugs in well), then I’ll layout diffpairs, and will have this board in a month’s time. I’ll be selling it on my store, as I do with other components.
Uses my Altmode Friend RP2040+FUSB302 module for negotiating DP altmode, and indeed, it will be fully open firmware. That said, zero percent of the firmware is currently written, as the “PCB shipping” part for the AF got delayed for an entire month now through a string of unfortunate events. The PCBs are currently waiting for me at home while I’m on vacation, having arrived a few days after I left - for the second time now =D
Will keep you updated on the progress. Did post this on Discord, but otherwise, I usually post about projects when they’re ready-to-go! Oh oh, just remembered, I oughta add a buck regulator to this one, for backlight voltage generation - TODO.
Currently outdated files+readme but to-be-updated repo here.