> Back in the day when the only chips that had host ports were PC 
> South
> Bridge chips or PCI USB controllers, OTG probably looked like a good 
> idea
> for embedded systems. But with the host controllers built into a lot 
> of MCU
> chips these days it doesn't make as much sense (to me). Maybe things 
> have
> gotten better on the OTG front but I still haven't seen many devices 
> that
> work with it.

About $US30 retail * buys a small 'black box' OTG controller that 
allows you to plug in 2 x USB slaves and exchange data - sometimes, no 
doubt. I've bought one recently but haven't yet tried it.

It SHOULD allows eg CF card to USB HDD and similar. Apparently people 
are using them here with great success to transfer data to/from IPODs.


        Russell




* Jaycar.


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