[Soekris] Console on second Serial Port.
chuck+soekris at 2003.snew.com
Tue Nov 26 18:40:38 UTC 2002
There's a mess of IO pins on this. I haven't found an
OS that uses them (NetBSD would be keen). But THAT
might be a fine means to do this. Wire it to a push
button or another computers IO button (parallel port?).
/me starts to wonder about USB as more generic, yet more
flexible once an OS is running. I have a little USB hub
that fits in the 4501 just fine :)
Quoting Henry Spencer (henry at spsystems.net):
> On Tue, 26 Nov 2002, Bart Smit wrote:
> > > ...assuming I can find a good way of getting back to default.
> > Getting a device's attention by sending it a BREAK just after power up
> > seems most natural and intuitive.
> I've never liked break as a monitor-signalling convention, because it can
> happen for other reasons, e.g. cable switching. If it was noticed only
> during boot, though, that would be less problematic.
> An alternative would be to use DTR tied to RI on one of the serial ports
> as the "force back to default" flag -- normal use of RI is always pulsed,
> never steadily on.
> Henry Spencer
> henry at spsystems.net
> Soekris Engineering, technical discussion mailing list
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