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  • Author Author: roborob1266
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Roadblock with SD Card slot on MKR SD Proto Shield

roborob1266

Well, I have been running some code to test reading from the SD card on the Proto Shield and it has not been working.

I tested two different codes to read the card reader and it isn't working.

I formatted the SD card with the downloaded program SD Card Formatter to the correct specs and still code doesn't recognize the card reader no matter what I try.

This is what I get as an error when I run the code:

image

There are some sites that indicate that there is a known issue with the card reader on these proto boards. Anyone else have this kind of issue or see it themselves?

 

I did find an article on the Arduino website that says that pin 3 of the SD card reader is not connected to ground and once he soldered a wire from pin 3 to the SD card reader case, it worked.

image

I will try that later on. Right now I have wasted most of today trying to get this card reader to work with no joy so far!

On to the next part!

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  • I had trouble at first with an existing 64gig disk.  So, I found an old 8gig and formatted to FAT.  It worked.  Twice it did it again, but pulling the card out and reinserting fixed that - or maybe just trying again would have been successful instead.

     

    Be sure you don't have anything tied to these pins or have your code address them: 

    D4,D8, D9, and D10

     

    Good luck with it.

     

    See ya',

    Sean

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  • I had trouble at first with an existing 64gig disk.  So, I found an old 8gig and formatted to FAT.  It worked.  Twice it did it again, but pulling the card out and reinserting fixed that - or maybe just trying again would have been successful instead.

     

    Be sure you don't have anything tied to these pins or have your code address them: 

    D4,D8, D9, and D10

     

    Good luck with it.

     

    See ya',

    Sean

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