Is there any reason why a PIC16F872 would have problems addressing progra=
m=20
memory locations 0x400 and above?

It has 2k words of program memory -- a range of addresses from 0x000 to 0=
x7FF,=20
but I'm having problems with *any* code I've tried above this boundary.

The code seems to go "wild" as though it cannot address anything this hig=
h. =20
I've tried shuffling routines around to move different ones above the 0x4=
00=20
boundary, and it appears to croak on anything that's up there.  BUT it wo=
rks=20
fine under MPLAB sim.  I've also tried another PIC to verify, and that=20
produces the exact same results, so I'll eliminate device problems for no=
w.

Been looking thru the datasheets, errata sheets, etc but haven't come up =
with=20
anything.

Cheers,
-Neil.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads