Multiple USB Enumerations on SAME70

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Hey All,

 

I want to enumerate USB interface in CDC mode. Once CDC mode is enumerated, Data must pass on Serial interface and based upon the data passed, device must re-enumerate in Composite Class (CDC & MSC).

I've modified the example project of composite class (CDC & MSC)  in which, if Interface descriptor is  for CDC class, it enables the interface while if it is for MSC class, it disables the interface initially.   This should enumerate  the device in CDC mode only. The device appears as Serial port but is unable to open the port thru any standard Serial port application. What can be the possible reason and workaround?

 

Looking for some help on above mentioned problem.

 

Thanks in advance !!

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Hi Esprit, have you got it to work? Both CDC and MSC USB classes?  What is your development framework?

Atmel Studio 7 + START + ASF4 ?