I never use the external sync on my Tek 475.  Now I'm thinking I am missing
out.  Is it basically just another channel that you can't display but only
sync off of?  If you are only viewing one channel and you want to sync off
another signal, is there any advantage to using the external sync input, or
would it always be better to put the second signal on the second channel so
that you can view it also?

So my impression is that you use the external sync when all your real
channels are being used and you want to input one more signal that you just
need to sync off.  Is that right?

--BobG

-----Original Message-----
From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On
Behalf Of Rick C.
Sent: Tuesday, January 14, 2003 6:26 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: Oscilloscopes

Not necessarily just a sync, but like a previos post said, you might sync on
the chip select, and you may also need to see that the chip select is there
and
stable from the CS driver which you cannot do with just an external trigger.
Rick

Barry Gershenfeld wrote:

> >You may want to watch various status lines on a PIC at the same time.
This
> >will save you having to probe around with just one or two probes. Also
you
> >loose one input if you need to need a sync signal.
> >Rick
>
> 'Scopes have an "external sync" input, no?   No need to give up a channel.
>
> Barry
>
> --

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