FEZ Cerbuino Net SD Issue

NETMF & Gadgeteer
1

Hi, I’m trying to use the SD card on my FEZ Cerbuino, the first tyme has worked but then now I get the exception shown in the screenshot. How could I fix the problem?

Thanks

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2

Format your card on the PC and try again

Try to use a powered hub

3

Hi, I tried both but without success. The exception is thrown when I create the new SDCard(). The sd card works properly on pc. What could I try to do?

Thanks

4

Have you tested other cards

5

make sure it is in FAT or FAT32 format.

6

Hi, I don’t know why now it’s working, but just the first time I call the function, the second time I get an exception on sd_card.mount. What could be the problem?

Thanks

7

Hello,
it’s long time since I used a Cerbuino the last time but if I remember right it can be that ‘sd_card.mount’ is already done in the constructor.
In an old project I found this snippet to initialize the SD-card.

if (!this.SD.Mounted)
        {
            AutoResetEvent waitForSD = new AutoResetEvent(false);
            SD.Mount();
            RemovableMedia.Insert += (a, b) =>
            {
                var theA = a;
                var theB = b;
                this._fs_ready = true;
                waitForSD.Reset();
            };
        }
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