TTL Pulse Generation with Non-buffered Digital Output on NI Devices

[rachelmcassidy]

I am using the daqmx package to interface with a NI PXI-6221. I'd like to deliver a precisely timed ~40 ms TTL pulse, but the timing of single-sample buffers coming from the FunctionGenerator node does not seem reliable enough. My device unfortunately does not support buffered operations on DIO lines.

Has there been any progress on implementing counter functionality in the daqmx package (bonsai-rx/daqmx#15)? Is it possible currently with the DigitalOutput node using the SignalSource property if I set up a counter task outside of Bonsai?

Apologies for the duplicate post - I also raised this as an issue in the daqmx repository.

[bruno-f-cruz]

You should be able to copy-paste the example I provided in that issue to an Extension. Make sure you add the daqmx package reference to the cproj file. We have been looking into ways to improve the daqmx package with more plug and play operators but it would be nice to have people test these local recipes to get a sense of what works and doesn't.