Could someone have a look at this scope trace?
This is a signal from an internal clock in a piece of gear I have no schematics for.
What I THINK I'm seeing is the duty cycle going from ~80% to 100%?
I need to be able to use that short 100% pulse to flash an LED, but I'm honestly not sure where to start. Is it something that could be done w/ logic gates, 555, etc? Or is a micro-controller the better choice? Any solution has to be near zero latency, this is a music application, the "pulses" superimposed on that signal are 1/4 notes.
Thanks kindly for any insight on this.
EDIT 09/08/16- I want to thank all who provided feedback/advice below. I've been at this hard for a week or so. Upon further experimentation, I've realized that this is not simply a duty-cycle modulation. This particular digital signal is apparently used by multiple functions within the unit I wanted to modify. The signal changes in too many different ways when other functions are enabled, to simply isolate that one "event" I describe above. Without a schematic and source code for the mcu that is generating the signal, I don't see any way to interpret that signal, even w/ another mcu. The gentleman who designed the hardware is not longer alive, so I don't hold out much hope for obtaining a schematic/source code. Thanks again for your help.