12f683 ICSP question

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12f683 ICSP question

Post by Jdnewberry » Fri Feb 17, 2017 9:01 pm

I have a circuit where pin 4 (MCLR) is held high by connecting it to pin 1 (Vdd). I'm looking to add an ICSP connection to give me the option to reprogram it onboard. If pins 1 and 4 are tied together in the circuit, will this cause me any issues?

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Re: 12f683 ICSP question

Post by phalanx » Sat Feb 18, 2017 3:45 pm

Check in the dataset about how to make connections to !MCLR. There is a diagram that shows how to combine ICSP functionality along with 5V for normal operation.


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