Jesse Lackey wrote:
> The programming spec data sheet for the part (PIC18F2320) clearly says
> 4.5V for bulk erase.

Right.  This is well known and hardly a new revelation.

> How does one do normal development in a 3.3V system?

You design this capability in up front.  ICSP can be very nice and useful
and usually not hard to design in, but it can be very difficult to retrofit
a design where it was not considered.

I remember hearing a military consultant say something like "amateurs start
by talking about strategy, but the professionals start with logistics".  I
think there is something similar in electronics: The professionals start
with the power supply.


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