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byounghoon_koh
Visitor II
March 26, 2004
Question

Ask about USB module...

  • March 26, 2004
  • 5 replies
  • 1142 views
Posted on March 26, 2004 at 05:28

Ask about USB module...

    This topic has been closed for replies.

    5 replies

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    byounghoon_kohAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:56

    Hello,

    We released an application using HID in uPSD. However, we faced to a problem that our product doesn't run on the system supporting fast USB 2.0. Furthermore, the document, DK3200-errata-0303.pdf is announcing this problem.

    Please check it and give me some advice about it.

    Best regards,

    Byounghoon
    B
    byounghoon_kohAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:56

    As I investigate, only Intel chipset has problem with uPSD's HID module. In VIA chipset, there is no problem in connection.

    Best regards,

    Byounghoon
    J
    joseph2399
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:56

    We have an engineer currently working on the fix to the problem number 3 described in DK3200-errata-0303.pdf document. The firmware fix should be ready in a few days.

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    byounghoon_kohAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:56

    Hello,

    Testing DK3200 Development Board, it works. As you konw, DK3200 Development Board using external power to communicate with PC, however our application lead the power just from USB cable. We need 500mA to operate our application.

    I hope this discription gives you some help even a bit to fix our problem.

    Best regards,

    Byounghoon
    N
    neil2
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:56

    Has this USB 2.0 problem been fixed yet ?

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