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pi3g
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Re: SD card sticking out ? Use RSMMC

Sun Mar 10, 2013 5:35 pm

For the lead to connect an external SD adapter: You would have to take into account that timing is critical on high-speed data applications.

I had a customer exchange a (mechanically) broken SD slot with a new one I obtained for him on the Raspberry Pi, and it stopped booting from it - maybe something went wrong while soldering, maybe there are some timing problems ...

But - no one is stopping you from trying!
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exartemarte
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Re: SD card sticking out ? Use RSMMC

Sun Mar 10, 2013 8:28 pm

pi3g wrote:I had a customer exchange a (mechanically) broken SD slot with a new one I obtained for him on the Raspberry Pi, and it stopped booting from it - maybe something went wrong while soldering, maybe there are some timing problems ...

But - no one is stopping you from trying!
I have done a couple of these without too much difficulty: details here.

Those are my two static Pi's - I also have a couple of non-static Pi's, one mounted with a breadboard and one being built into a mobile robot, which still have the original card sockets. These have the ModMyPi micro-SD carriers and I have found them excellent. A downside, though, is that they stand slightly proud of the socket, which is a problem if you have a tight-fitting case; I had to modify a couple of mine:

Image

According to ModMyPi their case will accommodate the adapter. I tried it in a version 1 ModMyPi case and found I could close it, but the Pi sat at a slight angle. Maybe ModMyPi built some extra space into their version 2 case.

It was suggested in an earlier post that it might be better if the micro-SD slot opened to the side. The AdaFruit one does, but it doesn't seem to be available in the UK and postage from the States adds significantly to the price.

thexeno
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Re: SD card sticking out ? Use RSMMC

Sun Jun 02, 2013 2:37 pm

Hi! I'm sorry if I pick-up an old post, but seems what I'm looking for :)
I've a Kingston Dual-Voltage MMC mobile 2GB and I still don't understand why it's not recognized by the PI. At power on, the ACT led flashes 3 times. The error code means that .elf file is not found (http://elinux.org/R-Pi_Troubleshooting# ... ic_pattern)
Someone said that is why there's no more support for MMCs. But it's for sure? Can someone saying the opposite?

johnlane
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Re: SD card sticking out ? Use RSMMC

Tue Jun 18, 2013 1:33 pm

I found a 64MB RS-MMC card in a drawer. I thought "great, use it as a boot drive - everything else is on the hdd anyways". I prepped the card but it doesn't boot - same old three flashes routine. It isn't the prepping that's bad as I also tried it on a (smaller) SD card I had lying around.

It's a shame they don't work. To boot I don't need a fast large capacity card so on the surface using these old RS-MMC cards seemed ideal. They get the card flush with the board and reduce the likelihood of catching an inserted card and breaking the slot.

If anyone knows a way to make one of these boot (perhaps using old firmware files?) I'd be interested...
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PiGraham
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Re: SD card sticking out ? Use RSMMC

Sat Jul 13, 2013 7:32 am

podly wrote:
wolfgangmob wrote:Another option is a combo adapter for micro SD to SD/USB then just cut off the USB side of the adapter.
What do you mean? Any links to this kind adapter?

cheers,
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IseMan
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Re: SD card sticking out ? Use RSMMC

Sat Dec 21, 2013 7:37 pm

Not sure if anyone is still interested or if I missed this being posted (reading on an iPhone) but I found this and am rather tempted to try it...
http://www.amazon.com/gp/aw/d/B00AKO3EVS

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exartemarte
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Re: SD card sticking out ? Use RSMMC

Sat Dec 21, 2013 11:20 pm

IseMan wrote:Not sure if anyone is still interested or if I missed this being posted (reading on an iPhone) but I found this and am rather tempted to try it...
http://www.amazon.com/gp/aw/d/B00AKO3EVS
Looks like the Adafruit one - on the Adafruit website it's only $5.95.

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