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open-ephys-plugins / nidaq-plugin

Acquires analog and digital signals from National Instruments DAQs
GNU General Public License v3.0
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Plugin not working with NI 6521 #2

Open JasminSBC opened 5 years ago

JasminSBC commented 5 years ago

We are currently using OpenEphys to collect neuropixels data, and have the Neuropix-PXI source module working well. However, we are now trying to integrate our behavior system by using the NIDAQmx source module in combination with the NI digital I/O module NI-6521 (that has 8 digital input channels that will be receiving digital TTL inputs). The NIDAQmx source module loads and shows the name of the module on the right as it should. The 8 channels also show up in green. It doesn’t seem however that the source module is currently reading any input from the channel(s) we have set up receiving small currents. Whenever we try and start a session with this module either the GUI crashes (which is most of the time) or if it does keep running (which only seems to happen if the Neuropix module is already running), then all the data files in the NIDAQmx folder come back empty. I have run a range of checks on all the hardware and the I/O module and that all seems to be working so far. The main error message in the debug console seems to be: ‘specified operation cannot be performed when there are no devices in the task’. Any suggestions on how to resolve this would be much appreciated! 20190812_150723 20190812_150843 1

medengineer commented 5 years ago

Hi Jasmin,

The module currently requires at least one analog channel on the NI device. I will have a fix for this early next week. Thank you for your feedback!

medengineer commented 5 years ago

Hi Jasmin,

I'm still working on a robust solution to this issue. In short, the current module architecture relies on an analog input sample clock to properly time/sync the digital input lines. However, we definitely want to support 'digital-only' devices and I will update this ticket as soon as we have a solution.

In the mean time, if you haven't yet tried out SpikeGLX, it would be great if you could confirm your NI device works properly there.

If you have any additional questions please reach out to me directly at pavel@open-ephys.org.

JasminSBC commented 5 years ago

That's great thanks, I will try out SpikeGLX and let you know how it goes

On Wed, Aug 21, 2019 at 3:04 PM medengineer notifications@github.com wrote:

Hi Jasmin,

I'm still working on a robust solution to this issue. In short, the current module architecture relies on an analog input sample clock to properly time/sync the digital input lines. However, we definitely want to support 'digital-only' devices and I will update this ticket as soon as we have a solution.

In the mean time, if you haven't yet tried out SpikeGLX, it would be great if you could confirm your NI device works properly there.

If you have any additional questions please reach out to me directly at pavel@open-ephys.org.

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