[ELDK] Linux DWC OTG Driver - Host mode

Stefan Roese sr at denx.de
Wed Mar 31 08:26:05 CEST 2010


Hi Mark,

On Wednesday 31 March 2010 01:19:56 Mark Malopy wrote:
> After doing a little research on the CurMod bit, I am working with a
> hardware engineer to identify why our USB transceiver is identifying that
> the Vbus voltage is not set at a sufficient level such that the Vbus
> encoding state received over the ULPI is causing the OTG core to believe
> we are configured as a device. This is most likely the root cause of my
> problem with host mode (and the lengthy posts I generated on your message
> board).

This reminds me of a problem with early Kilauea board revisions, where Vbus 
was too low (something about 4.7V). So this could explain your problems as 
well.

Cheers,
Stefan

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