Re: Can I send a TTL Pulse in a given rhythm?



Brooks,I have been trying to configure the VI you suggested but am still having some problems.
 
So far I have been able to get the VI to run under some circumstances without errors, however I am unable to obtain a physical signal from the designated port (i.e. when viewed on an Oscilloscope - please note that I have tried different lines and used digital patterns to make all of the lines go high - and the ports are able to put out digital signals when tested with the Measurement Explorer). 
 
The other main issue of which I am unsure is what clock to use. Some channels give error messages when nominated as the clock source, and some run without problems. However, I am not clear which ones should be used and why.
 
I have attached two screen shots (of the front panel and block diagram) to demonstrate how I have altered the VI.
Any tips would be greatly appreciated.Thanks again,Lanny
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