Hi Neville, See www.leapsecond.com/pic/ for info on my picPET chips.
Yes, I use them direct into a native serial port, or through serial/USB adapter. Either is fine. Any sort of "terminal" program works to read or log the ascii data. I have my own tools as well; send me email off-line for details. You can also use John's TimeLab; use Acquire->Acquire from counter in Talk-Only mode, and select Timestamp (wrap100 secs). That way you get phase, frequency, and ADEV plots in real-time. With a 10 MHz clock, the pulse resolution is 400 ns; more than enough for pendulum clock measurements. I use a picPET with my Synchronome. /tvb ----- Original Message ----- From: "Neville Michie" <[email protected]> To: <[email protected]> Cc: "Neville Michie" <[email protected]> Sent: Friday, October 25, 2013 9:46 PM Subject: [time-nuts] Time stamping with a PICPET > Hi, > I have some PICPETs made by TVB. > They take a 10MHz clock, and on receiving a pulse trigger, they send out a > 19200 Baud > RS232 time stamp word. > My query is can they be fed straight into a serial port? > What about logic levels? > Would a serial/USB converter get them into a laptop? > What applications are available to receive the data and make an ASCII file > that can be read by a spreadsheet > or other data reduction program. > There used to be all sorts of Monitor programs for PCs but I can not see any > on recent machines. > I want to log one second signals from a pendulum to analyse its precision. > The device looks ideal for this task. > thanks, > Neville Michie _______________________________________________ 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.
