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morpeh89
morpeh89
Associate III
February 16, 2011
Question

ST Virtual COM example. What is the speed of data transfer via USB?

  • February 16, 2011
  • 11 replies
  • 2169 views
Posted on February 16, 2011 at 14:52

ST Virtual COM example. What is the speed of data transfer via USB?

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    tsuneo
    tsuneo
    Associate II
    May 17, 2011
    Posted on May 17, 2011 at 14:25

    > Last year I attended a Microchip course that confirming these data.

    I advise to Microchip, to fire such a lazy instructor.

    He should check it by himself, before teaching it to others.

    Or, if he couldn't really get more than 640 Kbits/s (ie. 64 bytes/frame), he doesn't realize the relation of transfer-transactions. Not qualified for an instructor of USB course.

    > Do you have an example that I can use to make new test?

    Realize the relation of Transfer - Transactions, first.

    And then, you can write such a code by yourself immediately.

    It's the first hurdle for USB beginners (and the instructor should teach it).

    I've explained it on everywhere, for example,

    http://www.cygnal.org/ubb/Forum9/HTML/001627.html

    Tsuneo

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