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USB: VID=000 & PID=000

Question asked by Fernando Luis on Feb 17, 2013
Latest reply on Jun 5, 2014 by Yixing Kong
Branched to a new discussion

Hi all,

 

     When booting up a custom made board with iMX280 in USB Boot Mode is suposed that -when connected to a PC- Windows should recognize the board as a USB Device. The thing is that a pop-up message appears saying 'Unknown Device'. After using a USB Sniffer I noticed that the micro is sending the Vendor ID and the Product ID as zeros, whey it should be sending VID=0x15A2 and PID=0x004F.

     I also checked the D+ and D- signal with a Logic Analyzer and both are correct.

 

     Why the micro is sending the VID and PID as zeros??

 

     Thank you very much in advance. BR,

 

     Fernando

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