On 01/12/2013 10:47 PM, Eric H. Johnson wrote:
> Jon,
>
> It has what it calls a serial port, which in fact goes to a USB. There are
> then some drivers (Windows only) which apparently allow communicating with
> it as a serial device.
OK, the Beagle Board has a "real" serial port, driven via some GPIO pads 
and then
brought out with a Max232-style chip, so it needs no special drivers 
once the OMAP's
GPIO mux setting is made.  So, this serial port works from the VERY 
start of the
boot process, and you see the TI boot ROM ID'ing the processor rev 
number, the
memory chips and so on.  This allows you to see the messages from bad SD 
card formats,
and all sorts of similar incompatible boot params and other problems 
that prevent
Linux from booting.

I only know the Beagle Board, so I can't help much beyond that.

Jon

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