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Is there such a thing as Scroll Mode (or Roll mode)

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Is there such a thing as Scroll Mode (or Roll mode)

Postby MikeSD » Tue Jul 24, 2012 9:44 pm

Does the pico software have any mode like Scroll mode or Roll mode? I'm not talking about zooming, where you capture over a long period of time and then zoom in, and then can scroll through the signal. I mean the mode that a lot of scopes have where the scope runs continuously, with the trace coming in from the right and continues indefinitely, similar to a chart recorder.

Is that possible with the PS2206 or other picoscopes, and the pico software?

Is there any other 3rd party software that allows this?
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Re: Is there such a thing as Scroll Mode (or Roll mode)

Postby Martyn » Wed Jul 25, 2012 8:05 am

If you ensure that the scope software is running in streaming mode, with a timebase of 100ms/div or slower as set in Tools->Preferences->Sampling->CollectionTime, then set a single or repeat trigger with a threshold outside of your signal range, and a pre-trigger delay of 95%, and you should find that the display scrolls continuously.
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Re: Is there such a thing as Scroll Mode (or Roll mode)

Postby MikeSD » Wed Jul 25, 2012 2:24 pm

hmmm... I don't see any streaming mode, in the menus. I've only been using this sw for less than a day. My actual scope should arrive today.

The other thing is that this sounds like a way to simulate having this mode, rather than actually having this mode. The mode I'm looking for would/should allow for having the appropriate sampling rate and sweep rate, for the signal being measured. The display should update from right to left. I use this mode for looking at power usage over time. It's kind of like a strip chart recorder. The display would update from the right and the old data would move off the screen to the left. This is a very useful mode. The way scopes typically work are left to right and refresh left to right. Many higher end scopes have this roll/scroll mode. I was just hoping that the software would allow that as well.

How does one set the "streaming" mode on this sw?
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Re: Is there such a thing as Scroll Mode (or Roll mode)

Postby Martyn » Wed Jul 25, 2012 2:40 pm

The switch to streaming mode occurs automatically using the setting you put in Tools->Preferences->Sampling->CollectionTime

I am sure you will find this does exactly what you are describing, new data at the right, old data scrolling off the left.
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