PicoScope 7 Software
Available on Windows, Mac and Linux
Keeping the connection ON and triggering acquisition
Keeping the connection ON and triggering acquisition
Hi,
I am not sure how to do that but I would like to keep the connection activated with the picoscope but to start an acquisition of data ( like 2 seconds) with a trigger.
I need a robot arm to move around an hydrophone and read that value at different locations. So I would use a loop, that would trigger the acquisition, and save the data.
Thanks for the help,
Simon
I am not sure how to do that but I would like to keep the connection activated with the picoscope but to start an acquisition of data ( like 2 seconds) with a trigger.
I need a robot arm to move around an hydrophone and read that value at different locations. So I would use a loop, that would trigger the acquisition, and save the data.
Thanks for the help,
Simon
Re: Keeping the connection ON and triggering acquisition
Hi Simon,
Could you tell me why you want to keep the connection activated, whether you want to do this in PicoScope 6 or in the SDK API, and what your required sample rate and PicoScope Model are?
Assuming that the reason for your question is that you're concerned about missing a trigger, then if your sample rate is not too fast, and you're using the SDK, then you could stream the data and use the trigger as a marker to where you need to start and stop (i.e. 2 seconds later) copying the data to a separate buffer for analysis.
Regards,
Gerry
Could you tell me why you want to keep the connection activated, whether you want to do this in PicoScope 6 or in the SDK API, and what your required sample rate and PicoScope Model are?
Assuming that the reason for your question is that you're concerned about missing a trigger, then if your sample rate is not too fast, and you're using the SDK, then you could stream the data and use the trigger as a marker to where you need to start and stop (i.e. 2 seconds later) copying the data to a separate buffer for analysis.
Regards,
Gerry
Gerry
Technical Specialist
Technical Specialist
Re: Keeping the connection ON and triggering acquisition
Hi Gerry,
how is it possible to use the trigger as a marker? I would like to do it in the streaming example.
Best regards
Peter Lang
how is it possible to use the trigger as a marker? I would like to do it in the streaming example.
Best regards
Peter Lang
Re: Keeping the connection ON and triggering acquisition
Hi Peter,
Sorry for the delay in answering (Covid lockdown casualties).
When you use a psXXXXRunStreaming function to tell the PioScope to start streaming, you can use function arguments that (a) define how many samples there will be before the trigger, and (b) determine whether the streaming will continue until stopped by a psXXXXstop function call or until it reaches the end of the number of samples that you defined will be after the trigger point. So if you set that up correctly the value for maxPreTriggerSample, will be the offset into your Overview buffer at where the Trigger occurred.
Regards,
Gerry
Sorry for the delay in answering (Covid lockdown casualties).
When you use a psXXXXRunStreaming function to tell the PioScope to start streaming, you can use function arguments that (a) define how many samples there will be before the trigger, and (b) determine whether the streaming will continue until stopped by a psXXXXstop function call or until it reaches the end of the number of samples that you defined will be after the trigger point. So if you set that up correctly the value for maxPreTriggerSample, will be the offset into your Overview buffer at where the Trigger occurred.
Regards,
Gerry
Gerry
Technical Specialist
Technical Specialist