LOGIN   :::   RECOVER PASS   :::   GET ACCOUNT    
Browse
  • Projects
  • Code (CVS)
  • Forums
  • News
  • Articles
  • Polls
  •  
    OpenCores
  • FAQ
  • CVS HowTo
  • Mission
  • Media
  • Tools
  • Sponsors
  • Mirrors
  • Logos
  • Contact us
  •  
    Tools
  • Search
      
  • Download Cores (CVSGet)
  •  
    More
  • Wishbone
  • Perlilog
  • EDA tools
  • OpenTech CD
  •  
    Navigation: All forums > Usb > Message List > Message Post

    Message

    Reply | Reply all
    Date Prev | Date Next | Thread Prev | Thread Next Date Index | Thread Index

    From: tommy_hsu@i...<tommy_hsu@i...>
    Date: Thu Mar 10 03:30:11 CET 2005
    Subject: [usb] USB Get Descriptor Request
    Top
    The data what you were sending back cannot recognized by PC.
    Do you send an ACK firstly and a null data later?
    PC ask you Get Device Descriptor three times is the standard
    procedure for XP, I donot others OS.

    ----- Original Message -----
    From: venkatk@v...<venkatk@v...>
    To:
    Date: Tue Feb 8 12:15:13 CET 2005
    Subject: [usb] USB Get Descriptor Request

    > I am able to get the Get Device Descriptor request well but when I
    > am
    > sending the data that is the Device Descriptor the Pc is not
    > recognizing
    > it it is continuously sending the same request in the form of
    > [80,06,00,01,00,00,40,00] It is sending this three times. Can you
    > please
    > tell me what may ahve gone wrong.
    >
    >

     
    Copyright (c) 1999 OPENCORES.ORG. All rights reserved.