An Interactive Gated Ring Oscillator Tutorial – part #4

This is the fourth part of tutorial about making an interactive animated Excel model of a gated ring oscillator in MS Excel 2003. This section adds a joystick to the model which smoothly adjusts the RC delay constant (vertical movement) and the number of delay stages within the ring (horizontal movement). An additional function of the joystick is to control the gating signal (“Enable”) and place it either logic high or in a periodic mode with a period determined by the position of the same joystick.  More detailed joystick theory you can find in this old post.


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