8 MHZ internal configuration

[PickyBiker]

Yes, I looked at the .inc file and got further confused because the two items in red are both defined as H'3FFC', yet one says there is no clock out, and the other says there is a clock out. This has to be a .inc file problem or, there is something about that that escapes me. The bottom line here is that I can make this work, but I do not understand why it works and why these things are defined the way they are.

_INTRC_OSC_NOCLKOUT EQU H'3FFC'
_INTRC_OSC_CLKOUT EQU H'3FFD'
_EXTRC_OSC_NOCLKOUT EQU H'3FFE'
_EXTRC_OSC_CLKOUT EQU H'3FFF'
_INTOSCIO EQU H'3FFC'
_INTOSC EQU H'3FFD'
_EXTRCIO EQU H'3FFE'
_EXTRC EQU H'3FFF'

[mackrackit]

As far as I know just different ways of writing the same thing.

[PickyBiker]

You are correct dave.

I took a break and went out to fly my RC plane. On the way home, I figured out what was tripping me up. It's really simple. _INTOSCIO EQU H'3FFC' is looking at things from the IO point of view. In that case, if the pins are IO, they are not clocks and vice-versa. _INTRC_OSC_NOCLKOUT EQU H'3FFC' is looking at things from the clock point of view so when the pins are not clocks, they are IO's, and vice versa. So, indeed, the two items I highlighted in the previous post are the same.

Taking a break when you are banging your head against the wall is a good thing.