ps3000 RapidBlock and GetValuesOverlappedBulk

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hyxyzzh
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ps3000 RapidBlock and GetValuesOverlappedBulk

Post by hyxyzzh » Wed May 29, 2019 8:13 am

I want to use Rapid block mode to collect data, 1000 waveforms at a time. But it takes 400 milliseconds to transmit. I wanted to minimize the dead time, so I used GetValuesOverlappedBulk, but found that the data in the buffer did not change.

Martyn
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Re: ps3000 RapidBlock and GetValuesOverlappedBulk

Post by Martyn » Tue Jul 16, 2019 7:21 am

We would need to see your code and setup to understand the timing. Rapid Block Mode will allow you to collect multiple blocks of data to the devices memory with the minimum rearm time. However it will still take a finite time to download this data to the PC once the collection is complete, if you let us know the number of channels, number of samples per segment, and number of segments we can check if 400msecs is expected or not.
Martyn
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