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ATMEL microcontroller + USB memory stick

Discussion in 'Hobby Electronics' started by Guest, Dec 26, 2005.

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  1. Guest

    Guest Guest

    I want to build an small data logger based around ATMEL's 8535 (or one of
    the AVR Mega).
    I need to log around 300MBytes of data. USB memory sticks are cost effective
    storage mediums. Is there a simple way to interface a USB memory stick with
    an ATMEL microcotroller?

  2. Hi Ray,

    A USB memory stick is a USB device/peripheral and is designed to be
    connected to a USB host (Eg a PC with USB host stack in XP etc).

    The problem is - your ATMEL micro needs software that implements a USB host
    stack of a PC.

    Have you considered other flash storage mediums like SD, CF or MMC cards and
    a FAT file system so your PC can read the file stored on these cards?

    Just a thought.

  3. Plenty of USB slave devices around. But you need a USB host to talk to
    a memory stick.

    Much easier to talk to a CF card for datalogging from an AVR. Code
    already exists to talk to a FAT filesystem on a card with an AVR.


    Adrian Jansen adrianjansen at internode dot on dot net
    Design Engineer J & K Micro Systems
    Microcomputer solutions for industrial control
    Note reply address is invalid, convert address above to machine form.
  4. Michael C

    Michael C Guest

    Can you get these eeproms is 300MB though?

  5. Michael C

    Michael C Guest

    Much easier to use SD I would have thought, less pins.

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