RapidBlockMode on 3406b

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RapidBlockMode on 3406b

Post by giltech » Fri Feb 20, 2015 3:06 pm

I'm trying to get the device to capture in rapid block mode but when I write the data back I only get the first 29000 samples. I am trying to figure out what is wrong, it is possible there is a bug as I'm using a python wrapper to library, but before I spend too much time down that route I would like to ask if what I'm trying to do is beyond the capability of device.

Timebase:2 //4e-9
numSamples 226000
signal channel enabled and trigger using external when it goes about certain voltage.

I successfully run the code and read back from memory however each trace only has ~29000 points. Is it possible to use rapid block mode for a capture like this?

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Re: RapidBlockMode on 3406b

Post by Hitesh » Sun Feb 22, 2015 9:34 pm

Hi giltech,

Please could you provide the following information:
  • The ps3000a.dll version number
  • The number of channels that you are capturing data on
  • When calling ps3000aMemorySegments, what the value returned for the nMaxSamples parameter
  • Whether you using the ps3000aGetValues or ps3000aGetValuesBulk function in order to retrieve the data. What value are you passing for the noOfSamples parameter - is it 226000?

Software Dev. Engineer

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