Dual micro sd adapter

[binkinator]

Binki I'm so frigging jealous of your Switch mate, it's the best looking one I've seen!! Keeping my fingers crossed for you that all goes well with this upgrade

I don’t know, man. There’s some really neat setups out there (plus I know where all my setup’s flaws are.)

I’m hoping we can make something Dragon-esque here and open source the SDCard stuff so people can source their own board from the vendor of their choice (and do the Ninty fitment bits as a DIY 3D print.)

 

[peteruk]

I don’t know, man. There’s some really neat setups out there (plus I know where all my setup’s flaws are.)

I’m hoping we can make something Dragon-esque here and open source the SDCard stuff so people can source their own board from the vendor of their choice (and do the Ninty fitment bits as a DIY 3D print.)

Even the most beautiful people have some small flaws mate, the world would be boring without flaws..... I still think your's is pretty damn lovely and I genuinely love following it's progress

 

[ghjfdtg]

The specification for SD cards does mention using multiple cards connected to the same host. The Switch doesn't have this capability and it needs software support. But i think you can get away with switching the CLK line only if you keep it at maximum 2 cards only and keep the lines very short. The Switch can clock SD cards at 208 MHz which is very noise prone.

 

[binkinator]

just learned a little bit more about the difference between a FSSD06 and an FSSD07. The 07 switches between 2 hosts writing to one card while the 06 switches between 2 cards and one host.

The FSSD06 is a two-port multiplexer that allows Secure Digital (SD), Secure Digital I/O (SDIO), and Multimedia Card (MMC) host controllers to be expanded out to multiple cards or peripherals. This configuration enables the CMD, CLK, and D[3:0] signals to be multiplexed to dual-card peripherals. It is optimized for 1-bit / 4-bit SD / MMC applications.

The architecture includes the necessary bi-directional data and command transfer capability for single high-voltage cards or dual-voltage supply cards. The clock path for the FSSD06 is a uni-directional buffer with an integrated pull-up for high-impedance mode.
Typical applications involve switching in portables and consumer applications: cell phones, digital cameras, home theater monitors, portable GPS units, and printers.

clearly we want to 06.

https://www.onsemi.com/download/data-sheet/pdf/fssd06-d.pdf

pulling the old AliExpress trigger…more on this as we find out.

 

[Imancol]

Anyway, I'm still kinda hoping they would make a sd to sata adapter so we can use hard drives or ssds in switch lol

Buy and test

https://www.ebay.com/itm/294129876903