Problem streaming with PropScope

Alphecca

We recently purchased PropScope, and I'm trying to use the streaming function without success. I'm trying to stream 2 channels at say 10ms to a file. I'd like a single file of at least 60 seconds of contiguous data. The streaming dialog allows me to specify how often the "most recent" data are saved...but how much data is that? Based on what I'm seeing in the resultant output file, I SEEM to be getting a sample on each channel about every 400uS...but both the sample counter and clock reset every 1024 samples, at around 400mS worth of data. I'm suspicious that this means I'm getting 400mS of data at every save interval I've specified...and setting the interval to 0.4 doesn't seem to help, nor does it seem to make sense.

There's no documentation about this anywhere I can locate. Please assist. Thanx.

Publison

I don't have an answer, but have you looked at this pdf:

https://www.parallax.com/sites/default/files/downloads/122-32225-Understand-Signals-PropScope-Text-v1.0r2.pdf

Alphecca

No (because I didn't see a link to it anywhere), so thank you. Unfortunately, it doesn't contain any information about the streaming function. But thanx again.

Francis Bauer

Unfortunately I think the current/latest Propscope software (2.0.7) still has limitations on data streaming. I don't believe there will be any additional fixes/changes, since the original creator (Hanno) appears to have moved onto other things. See the following forum topic for what appears to be the most recent information on this:

forums.parallax.com/discussion/130044/how-to-control-sampling-rate-and-how-to-record-data-continously

You may need to look into another USB Oscilloscope product to get the streaming features/performance you want/need. Try looking at:

https://picotech.com/products/oscilloscope-specifications
store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply/