> Problem 2: Because you connected the TTL-level 1 PPS to the RS-232, you > may find that not all computers will recognize it. A computer that > actually followed the RS-232 rules wouldn't see it at all. I don't know if > any modern computer actually follows those rules.
I've never had any troubles feeding TTL signals to "RS-232" inputs. I tried the simple wire first. It didn't work, so I guessed that my pulse wasn't wide enough and built a debugging setup that had a pair of DE-9 connectors with ground, Rx and Tx jumpered across. The DCD pins came out to a couple of wires so I could easily get at them with clip leads and try things. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
