Search found 9 matches

by va3ttn
Tue Dec 11, 2012 5:10 pm
Forum: General Software Discussions
Topic: Software triggered generator operation (3204A)
Replies: 15
Views: 64063

Re: Software triggered generator operation (3204A)

The trigger can be used for the signal generator when a number of shots or sweeps of the waveform are required." Does that mean that trigger has no use for ordinary operation (no sweeps, no shots)? Both SIGGEN_GATE_HIGH and SIGGEN_GATE_LOW work as expected, but I was confused by the absence of any ...
by va3ttn
Tue Dec 11, 2012 11:40 am
Forum: General Software Discussions
Topic: Using GEN to indicate scope armed status
Replies: 3
Views: 2789

Re: Using GEN to indicate scope armed status

You can trigger the signal generator from the scope inputs I don't want to trigger the signal generator, because "triggering" does not apply to DC voltage mode. I just need two DC levels: -2 V before calling RunBlock +2V just after calling RunBlock The transition from -2 V to +2 V on GEN output wil...
by va3ttn
Mon Dec 10, 2012 7:01 pm
Forum: General Software Discussions
Topic: Software triggered generator operation (3204A)
Replies: 15
Views: 64063

Software triggered generator operation (3204A)

"Programmer's Guide" describes "software triggered generator operation" in a way that leads one to believe that the generator can be triggered by calling SigGenSoftwareControl after SetSigGenBuiltIn. Here's what the guide says about SetSigGenBuiltIn and SigGenSoftwareControl. ps3000aSetSigGenBuiltIn...
by va3ttn
Mon Dec 10, 2012 10:24 am
Forum: General Software Discussions
Topic: Capturing 4M samples with 3204A
Replies: 2
Views: 2108

Re: Capturing 4M samples with 3204A

I solved this easily by disabling the B channel explicitly right after OpenUnit.

It would be nice if OpenUnit documentation stated that all channel are active immediately.
by va3ttn
Mon Dec 10, 2012 7:36 am
Forum: General Software Discussions
Topic: Using GEN to indicate scope armed status
Replies: 3
Views: 2789

Using GEN to indicate scope armed status

I had a perfect plan for 3204A: 1. Set GEN to -2 V DC (ps3000aSetSigGenBuiltIn). 2. Call RunBlock. 3. Scope trigger is armed now. 4. Set GEN to +2 V DC (ps3000aSetSigGenBuiltIn again). 5. Use the GEN rising edge to trigger external equipment and produce scope trigger and input signals. 6. Wait for t...
by va3ttn
Sat Dec 08, 2012 7:17 pm
Forum: General Software Discussions
Topic: Capturing 4M samples with 3204A
Replies: 2
Views: 2108

Capturing 4M samples with 3204A

I need to capture ~4M samples from a C program. Only one channel is active. Trigger source is EXT. To get 4M samples with Picoscope 6, the Trigger (EXT) must be set to Single, otherwise only 2M samples can be captured. Now back to C. With nSegments = 1, ps3000aMemorySegments returns nMaxSamples = 41...
by va3ttn
Wed Nov 21, 2012 11:23 am
Forum: USB PC Oscilloscopes
Topic: 3204A limited to 1.25M samples?
Replies: 4
Views: 2508

Re: 3204A limited to 1.25M samples?

That worked, thank you!

May I suggest that such an information deserves a prominent place
in the documentation, perhaps even somewhere in the user interface.
by va3ttn
Tue Nov 20, 2012 7:02 pm
Forum: USB PC Oscilloscopes
Topic: 3204A limited to 1.25M samples?
Replies: 4
Views: 2508

Re: 3204A limited to 1.25M samples?

The above results were obtained with total collection time of 20 ms, because I bought this unit specifically to sample a single channel for 20 ms using the sampling rate of at least 100 Ms/s, which amount to 2M samples. But now it seems that my prospects of achieving the goal are very low. Here are ...
by va3ttn
Tue Nov 20, 2012 4:52 pm
Forum: USB PC Oscilloscopes
Topic: 3204A limited to 1.25M samples?
Replies: 4
Views: 2508

3204A limited to 1.25M samples?

I'm unable to get more than 1M or 1.25M samples with a single channel active on 3204A. With two channels active I can't get more than 625k samples per channel. The signal generator is turned off. So, how do I approach the advertised 4M samples? Help, About dump follows: PicoScope® 6 - PC Oscilloscop...