On 2012-08-01, Hahn, Ron <[email protected]> wrote: > > the PPS pulse width. Maybe with the Fat PPS board? This is reminding > me of the old days. Printers and Terminals! :) > Ron:
All of my TAPR boards also drive the RS-232 PPS pin with a 'low-z' output. They use 4 sections in parallel from a 74AC04N that gets it's input from the PPS output pin on the Oncore. This may stretch the pulse a little, but the pulse is very sharp! Tom -- Public Keys: PGP KeyID = 0x5F22FDC1 GnuPG KeyID = 0x620836CF _______________________________________________ questions mailing list [email protected] http://lists.ntp.org/listinfo/questions
