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Published on - 26th September 2011 05:29
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: I/O Pin status during startup
Simple answer- you cannot do that.
Jerson Today, 02:57You should design your project with active low outputs to account for the High-Z input state at power on. Almost every microcontroller, I know, behaves...