Solution 1: Use NTP (Network Time Protocol) to set the clock on your
computer...I believe there's an NTP option in later versions of Windoze,
Linux/UNIX users can just issue an nptdate command, and MacOS X has NTP
support.

Solution 2: Connect a GPS device to the PIC's UART...a lot of GPS units have
a serial NMEA interface on them and part of the GPS standard includes a
calibrated clock source and getting the PIC to communicate in the NMEA
protocol wouldn't actually be very hard at all.

Solution 3: Call 0845.124.9068 in the UK...and a TIM-2000 speaking clock
will tell you the time in the UK...adjust accordingly for your timezone.
(This clock is radio synchronized with the MSF atomic clock in Rugby).

Solution 4: It's 14:20 as I typed this email...estimate how long it took to
get to you ;-)

-marc


On 11/6/03 13:55, "Picdude" <picdude@NARWANI.ORG> wrote:

> Got my PIC clock working now, using the 32.768khz crystal and it "appears" to
> hold time much more accurately than with the Mhz-range crystals, but how do I
> know for sure? .... all of the 10 clocks I have here are all different by as
> much as 7 minutes, so I don't know which to trust.
>
> Is there a place I can connect to or call for accurate time?
>
> Cheers,
> -Neil.
>
> --
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>
>


--------------------------------------------------
Marc Nicholas Geekythings Inc. C/416.543.4896
UNIX, Database, Security and Networking Consulting

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