Chipidea usb otg support for IMX/MXS (device functionality)

Marek Vasut marex at denx.de
Sat Jul 6 21:10:00 EDT 2013


Hi Peter,

> > Where can I measure this?
> > 
> > > Two possible reasons:
> > > 
> > > 1. You have not gpio control for vbus toggle when role switches.
> > 
> > This works well.
> > 
> > > 2. Your hardware has some problems that the vbus can't lower than 0.8v.
> > 
> > How can I check that?
> 
> Just measure the voltage of your otg vbus pin.

It's 2.5 volt for me. What am I supposed to observe happening there?

Best regards,
Marek Vasut



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