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Message from discussion Configurable SPI voltage
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David Anders  
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 More options May 15 2012, 1:50 pm
From: David Anders <danders....@gmail.com>
Date: Tue, 15 May 2012 10:50:08 -0700 (PDT)
Local: Tues, May 15 2012 1:50 pm
Subject: Re: Configurable SPI voltage
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both the OMAP443x TRM and pandaboard describe the "VIO" voltage. in
addition it is indicated in the pandaboard schematic. all generic i/o
signals on the OMAP443x, operate at 1.8V.

there are several wiki pages describing how to interface SPI 1.8V
levels to devices that may require 3.3V or 5V:

http://omapedia.org/wiki/PandaBoard_SPI

thanks
Dave

On May 14, 5:19 pm, saxengineer <hwswengin...@gmail.com> wrote:

> Is the SPI voltage on the OMAP4430 ES board configurable, or is it
> tied to 1.8V?  It is not clear from the documentation, which does not
> actually specify the protocol voltage in this case.
> Thank you!


 
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