AnsweredAssumed Answered

MQX 3.8.1 usb cdc device not enumerating

Question asked by Travis Long on Nov 8, 2012
Latest reply on Nov 8, 2012 by Travis Long

I recently upgraded from MQX 3.8 to 3.8.1 and my usb cdc is not enumerating on my PC anymore.  Previously it all worked fine, but now I cannot see the device enumerate at all.  I am using USBView to see the devices attached to my PC and using 3.8 my device would enumerate properly and load the .inf driver and communicate properly.  Now nothing happens.  I have followed the instructions in the 3.8.1 release notes about adding the library search path and everything builds correctly.  I am wondering what changed to break what was previously working.  I am in the process now of trying this on a KwikStik to determine if it works on a demo board and is not just something to do with my own PCB.

 

Any information or suggestions would be greatly appreciated!

 

For reference, I am using:

K40DX256ZVLQ10

MQX 3.8.1

CW 10.2

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