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.
...
Re: IOC flag triggered when PIC is unplugged...?
That is a false assumption, all the IOC flag says is that a edge was detected, you need way more info to determine if it was a valid key press, at a minimum you need to know if it still "active"...
richard Today, 03:41