Where should I discuss SD/MMC FAT issues?


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  1. #32
    Join Date
    Mar 2008
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    Quote Originally Posted by skimask View Post
    Actually, you're one of only a couple of other people I've seen to get PBP to work with FAT on an MMC. I got a PIC/PBP to talk to an MMC, but not talking FAT.
    I'm going to have a good hard look at your code and see what (if any) major changes would be needed for FAT32 compatibility.
    Two things. First, I have a treat for you and anyone else who's trying to understand what I've done. It was a post I put together about how to simply find a file using a file's name and FAT. I wasn't happy with the limit of the scope, but now that I've put code out there, I think some people can benefit from what I've found.

    Second, man you hit the nail on the head! I went from about 55,000 Tcy to 5098 Tcy by forcing the bank locations to 0 for the variables used in the read/write loops. I was so shocked, I thought that I didn't get the data, but with each read of the F-RAM to look at it's content, sure enough all my data is there. That's amazing how much difference that made. Do you think by pushing the loop subs up to the top of the program I could see even faster speeds?

    (Oops... wrong file )
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    Last edited by JD123; - 21st March 2008 at 15:10.

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