Need to know the time - accurately for your next project?
The code below allows your PIC to log into a network timeserver and it (eventually) writes the time to a Dallas RTC (code not supplied).
The PIC checks the NET TIME every power-up and thereafter every 4 hours. If it doesn't make connection, it tries an alternate time server. If THAT doesn't work (after retries) it gives up and tries again 4 hours later. A Lantronix XPort handles the connection to the net.
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Re: IOC flag triggered when PIC is unplugged...?
I would not give up on the 18877 chip. Sometimes the view seems great but has pitfalls and all you need is to sleep on this. Next day will come the aha moment!
Ioannis Today, 18:30Ioannis