[Coco] CoCo SDC: SDHC type

[Sylvain Rousseau]

Hi,

I use a 32GB SD card formated in FAT32 and it works.

But as expected, a 16MB FAT12 SD card doesn't work.

Sylvain



Envoyé de mon ASUS Pad

Darren A <mechacoco at gmail.com> a écrit :

>On Tue, Mar 4, 2014 at 2:30 PM, Torsten Dittel wrote:
>
>> Is there any limitation regarding the size of the SDHC beside the SDHC
>> (assuming FAT32) 32GB max. size? I remember to have read 8GB max. size for
>> the CoCo SDC somewhere, but I can't find that now.
>>
>
>The largest card I have tested with is 8GB but any SDHC capacity that can
>be formatted with FAT32 should work in theory.
>
>
>Is there any advantage / disadvantage regarding perfomance (not waste of
>> space) by using:
>>
>> a) SD vs. SDHC
>> b) FAT16 vs. FAT32
>> c) 4KB vs. 8KB vs. 16KB vs. 32KB cluster size
>> d) Speed class 2 vs. 4 vs. 6 vs. 10
>>
>
>Cluster size is probably the only item that would affect performance of the
>CoCo SDC, and even that would only show up when using very large DSK files.
>Larger cluster sizes allow faster traversal of the FAT when seeking to
>positions far from the beginning of the file.
>
>
>Is there any known incomaptibility to certain SD card type?
>>
>
>One person has reported a problem using an old PNY 1GB SD card, but it may
>have just been a defective card.
>
>Darren
>
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