myRIO: Correlated digital I/O?

[jditte]

Does the myRIO support correlated digital I/O? I would like to sync digital out to the analog in clock. Is this possible and, if so, how?

[JustJohn]

Hello Jditte,

What is the application that requires a digital output synchronized to the analog in sample clock? This should be possible to implement using the myRIO FPGA. This White Paper discusses the Advanced Data Acquisition techniques that can be used with the NI RIO products and might be a good place to start. 

http://www.ni.com/white-paper/2993/en/#toc3

You could also drop down the digital outputs from the myRIO in your project into a timed loop that is set to a specific rate you wish to take in analog data. This would essentially synchronize the digital outputs to the analog input clock because they are in the same single cycle timed loop. 

[jditte]

Thank you, John. The application is a closed-loop application where a digital signal needs to be controlled with precise timing relative to an analog signal that is continuously acquired and analyzed in real time. I will have a look at the white paper.

Best,

Jochen