I've just rejoined this list after a few years away !

I have a 16F877 development system I built a few years ago, an now I'm
considering moving to newer 18FXXX devices.

My development system has a 16F627 with a RS-232 i/f to the PC and uses
ICSP to program the 16F877.

Q:  Is the ICSP spec for 18FXXX devices the same as it was for 16F877,
or will I need to modify the programmer to use it with 18FXXX devices
(IE is the ICSP spec the same) ?

Peter.

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