mattschinkel wrote:
> I just think it is not good to connect ICSP VDD 5v to PSU 5v.
> There could be a voltage difference, ICSP VDD may be 4.7v,
> and PSU may be 5.2v.  Isn't this a bad idea?

As has already been pointed out to you abundantly, this depends on the PIC
and the programmer.  Some PICs can't be programmed with a steady 5V on Vdd.
Some are even damaged by that.

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