[ELDK] USB on Kilauea

Dave Rensberger David.Rensberger at ambientcorp.com
Thu Aug 14 21:20:22 CEST 2008


Is there supposed to be documentation that explains the purpose of the
ID pin and the device/host pin?   The User's Manual that I have for the
Kilauea says that they exist, but that's about all.   

I think I've figured out what the ID pin is by reading up on USB OTG.   

I'm not sure what the other ("device/host") jumper is supposed to do.

--Dave

-----Original Message-----
From: Stefan Roese [mailto:sr at denx.de] 
Sent: Thursday, August 14, 2008 2:12 PM
To: eldk at lists.denx.de
Cc: Dave Rensberger; wd at denx.de
Subject: Re: [ELDK] USB on Kilauea

Dave,

On Thursday 14 August 2008, Dave Rensberger wrote:
> Do you remember if you had to do anything out of the ordinary to force
> the OTG controller on the Kilauea to act as a host, rather than a
> device, or was that automatically taken care of by the HNP protocol
> and/or having the right cable?

IIRC, then there is a jumper on the Kilauea to configure the USB ID pin
(pull 
to GND). This could be worth a try. Should be documented in the Kilauea
users 
manual.

And I suggest that you don't hotplug the USB stick but have it connected

before powering and booting the board.

BTW: Which board revision do you have? There have been issues with
earlier 
board revisions. And which Linux version are you using?

Best regards,
Stefan

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