How to find the address of stored data on a SD memory card?

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  1. - 24th February 2010, 18:59 #1
    mackrackit's Avatar
    mackrackit
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    If you want to get into FAT32???
    http://www.picbasic.co.uk/forum/showthread.php?t=11700
    The new link to the file is near the end of the thread..
    Dave
    Always wear safety glasses while programming.
  2. - 25th February 2010, 02:43 #2
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    Thanks Dave, but I can't use FAT32. The SD card lives inside another device that doesn't play FAT32.

    Still researching my options....


    steve
  3. - 25th February 2010, 04:56 #3
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    The origional SDFS is FAT16.
    A cool thing about the SDFS32 is if you build your own card reader thingy it will be able to read or write to either one. It detects the format for you.
    Dave
    Always wear safety glasses while programming.
  4. - 3rd March 2010, 20:26 #4
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    mackrackit,

    I have been trying to figure out for a while how to send FAT16 or FAT32 files to a SD memory card like Byte_Butcher is trying to do. But using SDFS seems to do the job. Thank you for your help. I also didn't have any idea what SDFS is for.

    The file SDReadme.txt shows a serial connection between the MCU and the PC computer. Now my question for you, can this serial connection be replaced by a USB connection by using for example a PIC18F4550? Have anybody achieved this SDFS with a USB connection? Thank you all for your help.

    Robert
  5. - 3rd March 2010, 20:54 #5
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    All the serial connection is for is dubugging/monitor want is going on. Once you are happy with the setup all of those lines can be deleted.

    USB... I have not played with USB but I do not see why you could not use it for debugging if the PC has a terminal that will work with it.
    Dave
    Always wear safety glasses while programming.
  6. - 4th March 2010, 13:07 #6
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    Thank you mackrackit for your response.

    Yes, I guess USB can be used for dubugging and monitor what is going on with the MCU. But, what I really had in mind was to be able to see the information in the SD card through a USB connection as a thumbdrive. This might be a challenging project for me, but like everybody else in this forum I am up to the challenge!

    Robert
  7. - 4th March 2010, 14:11 #7
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    Quote Originally Posted by rsocor01 View Post
    Thank you mackrackit for your response.

    Yes, I guess USB can be used for dubugging and monitor what is going on with the MCU. But, what I really had in mind was to be able to see the information in the SD card through a USB connection as a thumbdrive. This might be a challenging project for me, but like everybody else in this forum I am up to the challenge!

    Robert
    That would be an interesting project. Probably make you pull your hair out though...
    I go to walmart and get a SD/USB reader for less than $10. Saves my hair
    Dave
    Always wear safety glasses while programming.
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