> 1. Does anyone know if PicStart Plus with 2.3 firmware
> and MPLAB 5.3 will program the 18F452?

Don't know about the picstart, but I think you need MPLAB 5.62 to
recognize the F parts.  A "dot release" on 5.5 worked also, but that
seems unnecessary since 5.62 is available.  This is based on getting
a promate working, but I think you still need to have MPLAB aware of
the part.

> 2. Is it worth learning the 18F instruction set?

I mentioned this in another post a while ago, but you'll want to learn
enough to be aware of differences such as DECF now affects the carry
flag, but didn't on the 16 series - means you can't necessarily just
drop code in.

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