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Design >> Analog Design >> attach detection for USB OTG device
https://designers-guide.org/forum/YaBB.pl?num=1307009768

Message started by sam.z on Jun 2^nd, 2011, 3:16am

Title: attach detection for USB OTG device
Post by sam.z on Jun 2^nd, 2011, 3:16am

Hi,
Is there any way to know whether the USB plug(OTG) was attached or not? (Only Vbus pin is avaliable)
From the OTG USB2.0 spec, there is a 1~6.5uF cap at VBUS node.
Any one knows the way to detect the Cap?

Thanks a lot ,
Sam