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won't enumerate on all USB 2.0 PCs
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won't enumerate on all USB 2.0 PCs

dreitz posted on 02 May 2012 2:43 PM PST
Top Contributor
74 Forum Posts

I have a laptop where the FX3 will not enumerate.  It never returns from CyU3PConnectState(CyTrue,CyTrue).  CyU3PConnectState(CyTrue,CyFalse) works everytime. 

Other USB 2.0 machines enumerate correctly.

I am using API version number = 1.0.1.670.




Re: won't enumerate on all USB 2.0 PCs

aasi posted on 06 May 2012 09:50 PM PST
Cypress Employee
1073 Forum Posts

By any chance did you hook up a CATC to look at what is going on the USB bus and where exactly it is failing?

Regards,

Anand 



Re: won't enumerate on all USB 2.0 PCs

dreitz posted on 07 May 2012 12:57 PM PST
Top Contributor
74 Forum Posts

I don't have access to an external analyzer.  All I know is it never returns from CyU3PConnectState.






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