FW16 M.2 A/E Key slot SDIO support

Community Support
,
1

Does the Framework 16’s A/E key M.2 interface support SDIO?

Looking at the schematic: Framework-Laptop-16/Mainboard/Mainboard_Interfaces_Schematic_Framework_Laptop_16_7040_Series.pdf at main · FrameworkComputer/Framework-Laptop-16 · GitHub

It appears that the SDIO pins are un-used, if I am reading the schematic correctly. Is that correct?

I ask, because I am trying to troubleshoot an MT7921 based M.2 E-key WiFi module which only supports SDIO 3.0 and not PCIe ( Sona™ MT320 - Wi-Fi 6 + Bluetooth® 5.4 Module | Laird Connectivity is Now Ezurio ).

I wanted to run some tests with this card for another project, so I threw it in my FW16 because I thought it would be a quick an easy way to test it. If the M.2 A/E Key slot doesn’t support SDIO, that is fine. I just want to confirm that it should not be working so I can stop trying to troubleshoot.

Thanks,
Pete

2

Hi. If it is a SDIO wifi card, why not get an adapter and plug it into a SD card expansion card? There is one that takes the larger SD card format now.

3

I have this adapter: ADP-uSD-M2 and I have the Framework Micro-SD card module, but am also having issues with that configuration and was trying to eliminate points of failure by not using two different layers of adapter to go form M.2 → Micro-SD → USB-C. At that point it isn’t really a Framework support question it is a Linux troubleshooting SDIO/M.2/mt7921s module issue which I am not going to expect support for here.

So back to the original question: Is the E-key M.2 connector wired for SDIO or not?

Thanks,
Pete

4

I am looking at the same schematic as you. If the schematic is correct, it looks like the SDIO is not connected to anything on the wifi M.2 connector.

5

Thanks. That was my conclusion but I wanted a second set of eyes to agree.