16 bit PWM using CCP1

[richard]

in dt's code the var is declared in a asm routine and as EXT in pbp

wDUTY VAR WORD EXT ' map wDuty to CCPR1L:H as a word
@wDUTY = CCPR1L

if you declare a var in pbp and wish to refer to it in asm it must be prefixed with an underscore as others have stated

[EarlyBird2]

in dt's code the var is declared in a asm routine and as EXT in pbp


if you declare a var in pbp and wish to refer to it in asm it must be prefixed with an underscore as others have stated

That is from post #1 but in #3 which Talat is using

DutyHold1 VAR WORD BANK0 SYSTEM      ' holds next dutycycle, synch with PWM 
DutyHold2 VAR WORD BANK0 SYSTEM      '

is the way they are declared and again "_" is not used.

[EarlyBird2]

Found the answer in the manual of all places!

Modifiers can be used to specify certain attributes of the variable when created:
address A numeric address may be used as a modifier. This instructs PBP where to locate the variable in RAM.
BANKx Instructs PBP to locate the variable in a specific bank of RAM.
SYSTEM The default behavior of PBP is to append a prefix underscore character when creating the variable in Assembly Language. The SYSTEM modifier inhibits this behavior so that the variable name will be identical in PBP code and Assembly code.

Does anyone read the manual, me included obviously?

[richard]

when all else fails