Bought the new mainboard, impressed and giddy with it generally. Noticed this in the BIOS:
Last I checked neither https://fr.mw/FRANNJ00TP nor https://fr.mw/FRANNJOOTP actually loaded. Does anybody know what it’s talking about?
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I also like to know the answer of this one!
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Seems like an as-yet unannounced new product + the feature that supports it. I bet we’ll hear about it in 2 days, at Framework’s upcoming event.
Through the simple expedient of diff-ing dmesg outputs with the variable on and off, I found this line appears when that setting is turned on:
[ 0.577709] AMDI0020:00: ttyS4 at MMIO 0xfedc9000 (irq = 10, base_baud = 3000000) is a 16550A
Trying the obvious thing
sudo minicom -o -b 3000000 -D /dev/ttyS4
doesn’t seem to get a response - Tried playing with some of the bit settings, and moving down to sub-three-million(!!!) baud rates, but no luck.
If it’s a new product feature, this is the weirdest ARG rollout I’ve seen to date.
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So, nothing in the recent FW16 announcement about this serial port.
It is in the BIOS of the FW13.
My guess is that one will need a slot card with special wiring to present as a COM port to, say, attach another laptop to, in order to have COM serial port access to the OS.
Please can someone with a FW13 ask FW support for details of what wiring that slot card will need to get this working?
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Updates: Both the links above were given a ‘Coming soon!’ landing page on the 19th.
setserial agrees with the kernel that /dev/ttyS4 is a hardware 16550A.
Still says “Coming soon!”.
Has anyone seen any updates from FW on this?
@nrp is there any chance that you can share with us more details regarding this Serial Port setting in bios? what is purpose of that serial port?
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One of the on-the-front-page features of this hardware is that “ It’s yours! If you want to fix something there’s a handy link right there - Scan the QR code! “ It’d be nice if the links you gave us explaining things had something besides ‘Coming soon!’ for content.
I realize in TYOOL 2025 that taking money before the product is even built, then shipping a product half-finished is just the way people do business anymore - It’d be nice if you could actually put the money I paid into finishing the project BEFORE you start flinging it at random apparently unvetted projects?
I tried getting more information about this serial port via support@frame.work. I am hoping to use it for bootloader development/experimentation, but they said, “At this time, we do not have documentation showing the physical pins (Tx, Rx, GND) or headers for the AMD SoC serial port.”
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I was able to successfully use the debug serial port connected to SoC’s UART by plugging a "EC Card 2", a closed-case debugging (CCD) Expansion Card for the Framework Laptop :: HowettNET in the upper-left USB-C serial port (the one closest to the screen) on a Laptop 13 with a AMD Ryzen AI 300 Series SoC.
close case debug was working earlier on FW16/ It gives you access to EC. This settings looks like something new