PicoScope 7 Software
Available on Windows, Mac and Linux
Simple Trigger + Max Continuous Streaming
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Wilfred_Mason
- Newbie
- Posts: 0
- Joined: Tue Aug 20, 2019 7:17 pm
Simple Trigger + Max Continuous Streaming
Hello,
I would like to continuously stream ad store data at the max sampling rate on channel A of my PicoScope 5242D using the MATLAB SDK. I would like the streaming to begin when the the signal being read in channel B reaches a threshold voltage (3000 mV). I need to stream and store for 5s.
Will the example, "PS5000A_ID_Streaming_Example.m" do this?
Here is what I have modified to achieve my result:
1) Change the threshold voltage
2) Modify the sampling rate to get the max specified by the specification sheet (62.5 MS/s) for continuous streaming.
3) Update number of samples to acquire before stopping
4) Allow for continous streaming
In addition I would like to change the input voltage range for my channels, how can this be done? I assume it is done in this line;
Can I change 2V to 250mV for example?
Hopefully that is all that needs to be done. Please let me know if my assumptions are correct, if anything remains to be done and if the example will do what I need.
I would like to continuously stream ad store data at the max sampling rate on channel A of my PicoScope 5242D using the MATLAB SDK. I would like the streaming to begin when the the signal being read in channel B reaches a threshold voltage (3000 mV). I need to stream and store for 5s.
Will the example, "PS5000A_ID_Streaming_Example.m" do this?
Here is what I have modified to achieve my result:
1) Change the threshold voltage
Code: Select all
[status.setSimpleTrigger] = invoke(triggerGroupObj, 'setSimpleTrigger', 0, 3000, 2);Code: Select all
set(streamingGroupObj, 'streamingInterval', 5e-6);Code: Select all
set(ps5000aDeviceObj, 'numPreTriggerSamples', 0);
set(ps5000aDeviceObj, 'numPostTriggerSamples', 5*62500000);Code: Select all
set(streamingGroupObj, 'autoStop', 0);Code: Select all
channelSettings(1).range = ps5000aEnuminfo.enPS5000ARange.PS5000A_2V;Hopefully that is all that needs to be done. Please let me know if my assumptions are correct, if anything remains to be done and if the example will do what I need.
Re: Simple Trigger + Max Continuous Streaming
Hi
If you are wanting to use a trigger to initiate capture you will need to be using the block capture mode, as in streaming the data capture will start immediately upon calling RunStreaming. The trigger in streaming ca be used to mark a point within the streamed data and/or to work with the autostop to stop the streaming capture.
The input ranges that can be set can be found within the programmer's guide for your device which can be found here
https://www.picotech.com/download/manuals/picoscope-5000-series-a-api-programmers-guide.pdf
Neil
If you are wanting to use a trigger to initiate capture you will need to be using the block capture mode, as in streaming the data capture will start immediately upon calling RunStreaming. The trigger in streaming ca be used to mark a point within the streamed data and/or to work with the autostop to stop the streaming capture.
The input ranges that can be set can be found within the programmer's guide for your device which can be found here
https://www.picotech.com/download/manuals/picoscope-5000-series-a-api-programmers-guide.pdf
Neil
Neil
Technical Support Engineer
Technical Support Engineer