SDRAMPS Schematic?

Does anyone have a simple image schematic of the SDRAMPS board? I've for the parts and was going to build one on some perfboard.

There's a file here: [koti.kapsi.fi]

but I have nothing that can read the sch file.

-Rob A>

It's an Eagle schematic, you have to install this application to read the file. Debian/Ubuntu has an appropriate package.

That said, there are simpler ways to build an SD card reader. Good old Generation 3 Electronics had this capability already and Alfons3 made an excerpt for Generation 7 Electronics: [github.com] Watch out for the "extension board". It's a file also with a .sch suffix, but to be read with gEDA this time.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

Here is a screen capture of the Eagle schematic from [koti.kapsi.fi]

Hi everybody,

Thank you for the schematic. It was realy helpful!!

But :
Are RSV and SENSE Pins connected to GND?
In my SD ramps => not, but in schematic => yes?!!

They are not connected!! I have just verified it!!

Thank you!

There is a little switch built into the edge of the SD socket. You can (or perhaps can not) use it to detect whether a card is in the socket. It's more i/o's to use the switch, so in many cases the choice is -not. When you are not using the switch, it does not matter how you do the pins on it. They can be open or ground.