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Thread: USB To Go?
www.piclist.com/techref/index.htm?key=usb
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face BY : Andrew Warren email (remove spam text)



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Harold Hallikainen <RemoveMEPICLISTspamKILLspammitvma.mit.edu> wrote:

> THANKS Andrew! This is an embedded system that currently uses a
> laptop to configure the system thru EIA232. The customer is looking
> at porting the configuration code over to PDAs and USB. Our box and
> the PDA have to figure out who's in control.

   They only need to figure that out if they're BOTH On-The-Go
   devices; if you know that your PDA will always have a USB host
   port, your box just needs a standard USB device controller.
   Similarly, if you know that the PDA will always have a USB device
   port, you'll need a host-capable chip in your box (the EZ-OTG
   chip will work fine), but you won't have to do any of the OTG
   negotiation.

   -Andy

=== Andrew Warren -- spam_OUTaiwspamcypress.com
=== Principal Design Engineer
=== Cypress Semiconductor Corporation
===
=== Opinions expressed above do not
=== necessarily represent those of
=== Cypress Semiconductor Corporation

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