has anyone ever configured PCI-6601 or another NI Counter/Timer for generating a pulse train with pseudo random period?

[aspi]

I want to generate a pulse train generation with a pseude random period. I am programming my application with Visual C++ and I have a PCI-6601. Pseudo random period can be done since a pseudo random code but I haven't it. Can anyone help me? Thanks in advance.

[JustinBritten]

Take a look at the following Knowledge Base article which I have linked to this post. It will explain how to use NI-DAQ function calls (which can be called from Visual C++) to change the frequency (or period) of a pulse train on the fly.

How Do I Change The Frequency Output Of My Pulse Train On The Fly?
http://digital.ni.com/public.nsf/websearch/7B1B0427C39FE33086256CEE00752133?OpenDocument

All you have to do now is generate random numbers for your load registers and then call switch cycle when you want to change the period to a new random period.

Regards,
Justin Britten

Applications Engineer
National Instruments