Electronics > Beginners
Pull-up and pull-down on TTL output
tggzzz:
--- Quote from: bitbanger on May 22, 2019, 01:52:48 am ---Of course once I figured out how to drop the clock frequency down (to 5kHz) it cleaned right up. :-+
--- End quote ---
That is, of course, deceptive. Any termination problems would still be there, since they occur during transitions.
Any voltage spikes could still be (slowly) damaging the receivers, and whether or not the digital signals would be received correctly depends on the details of how the receiver interprets the analogue voltages as digital signals.
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