[time-nuts] Enhancing the TIC232 code for better data

[Bill Janssen]

Didier Juges wrote:

>Second thoughts about inverting the UTC 1PPS. I have read in a previous 
>post that for most GPS receivers, only the leading edge of the 1PPS 
>pulse is tightly controlled (and intended to be synchronous with the 
>satellite signal), the falling edge is not. If this is true, we want to 
>make sure we keep that edge the way it is and then invert the 1PPS from 
>the DUT, if this is possible.
>
>Also, at least with my Jupiter receiver, the 1PPS is a fairly short 
>pulse, not nearly 50% duty cycle, so inverting it might not give much 
>improvement.
>
>Any thoughts?
>
>Didier
>
Would it be feasible to clock a flip-flop with the pulse ? that would 
give a 50% duty
cycle but with one  pulse per two seconds. I hate to slow the signal but 
it might be feasible.

Bill K7NOM