At 05:55 PM 11/24/2003 -0500, Tim Hart wrote:

>Well....I read over most of that document....very good.
>
>Still confused about those "Single Shot" things....would a TX/RX on say the Serial port show up if setup to trigger?  Or would the next wave of nothing overwrite it?

In an analog scope, single shot paints the screen once.
You have to rely on catching that fading screen in your head.
It will only sweep once, then not retrigger.

In a storage scope, the single trace stays on the screen.
DSOs do it in memory, Analog does it with very special scope tubes.

>I guess what I'm asking is can an Analog O'Scope be setup to keep displaying a screen once a trigger is set on a channel?
>
>Maybe an example....
>I set up the scope to trigger when channel one goes to 5v...the total screen covers 100 ms.
>When channel one goes to 5v I want it to show me that 5 volt pulse and the next 100ms....nothing else.  Both Channel 1 and 2 are showed.

That's typical.  A DSO is a very good scope, and a really basic logic analyzer.
Two channels is an absolute minmum, four is way better!

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