SD to USB conversion

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projectwhat
Posts: 28
Joined: Sun Jan 28, 2007 5:49 pm

SD to USB conversion

Post by projectwhat »

I have a SD card slot on a board. I want to wire up a USB slot on the board. maybe even remove the SD Slot and Replace it with a USB slot (Female end)?
I would prefer the USB SLOT(Female) end to be the USB-Mini.
Can anyone point me in the right direction to do this?

http://pinouts.ru/Memory/sdcard_pinout.shtml
http://pinouts.ru/Slots/USB_pinout.shtml
-Ben-
tom61
Senior Member
Posts: 1517
Joined: Fri Mar 25, 2005 6:51 pm

Post by tom61 »

USB and SD cards don't use the same protocol, so just wiring up USB to an SD slot would be useless.

What device is this? If it's a laptop, you may be able to remove the SD card controller chip to gain access to the USB lines it uses, though you may need additional buffering circuitry and/or signal voltage level adjustments.
Sparkfist
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Location: Michigan

Post by Sparkfist »

You need to have a chip decoder to translate the data from the SD to USB. If the SD slot you have goes to a USB port on the motherboard then there shouldn't be a problem, check to be sure. If it doesn't go to a USB host, say like the multi card reader on my laptop (zv6123cl), you'll have to look for a USB host port, or simply buy a USB hub and branch off an existing USB port.
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