Quote:
|
Originally Posted by Alan Anderson
I'm considering wiring in a hardware pulse-stretch circuit to deal with it.)
|
Alan,
The simplest way to do this is with a D-type flip-flop (e.g., 74ACT74, 74HCT74, 74LS74, etc.). The encoder's phase-A signal goes to the the clock input and the RC interrupt input. The phase-B signal goes to the flip-flop's D input and the Q output goes to the RC digital input formally used by the phase-B signal. I prototyped this circuit and saw a pretty dramatic increase in the maximum count rate that the RC could handle.
-Kevin