I could see no association with the X's formula. Even inverting
> some/part/all, swapping bytes, nothing lined up. I gave up on that
> path shortly since the tx/rx freq storage was so different why expect
> the PL method to match either.
Brute force it is. :)
I've been starting with the theory that a lot of things are going to be
pretty similar, since most of the radio is the same other than the
personality board. It's not really a surprise the the x9k has different
math for PL, since that's generated by the processor, and the clock and
processor type are different. It also makes sense that for a different
processor architecture you might well choose a different storage layout
because the most efficient way to convert stored patterns into pin
outputs probably isn't the same.
However, the "same" theory does work in frequency divider math. Best I
can tell, those calculations come out exactly the same. The way you bit
stuff the results into the code plug after that is different, of course.
This makes sense to me: those bit fields all get stuffed into the same
sort of chip on the same sort of io / interface / rf boards.
De
