PLUS+1™ Hardware > Controllers

Output Frequency


I have a customer that would like a variable output frequency from the Plus+1.  Can this be done on a PWM pin?  I know I can change the frequency on a pin as a constant, but can I do it dynamically while the program is running?

set a digital output and switch it with a variable timer

That will work well as long as the required frequency is below the loop time of the program but not when I'm up in the 4000 Hz range.

SJ Industries:
I have done it with a PWM output as an experiment. It does work, but every time the frequency is changed the output is turned off momentarily. It is not a smooth change.

Thanks, that's enough to tell me what I need to know.


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