18F Config fuses

[Angus Anderson]

Hi Dave-

Yes, I did comment it out in the include file when I specified the config fuses in the source file. It's just that I can get it to work with no config statements in the source file, and config statements specified in the include file, but NOT the other way around. Statement syntax is identical. This is a funny one.

CCkid, there is an 18F config statement that allows resetting of a stack overflow. I enabled it

regards

Angus

[Dave]

Angus Anderson, Could you please send the statements for the configurations you are trying to set? I'm sure it will shed some light on the problem.

Dave Purola,
N8NTA

[Angus Anderson]

Hi Dave- As you requested, here are the 2 files:



This is the source file config statements (at present commented out)
'--------------------------- Set Processor options. THIS IS MPASM -----------------------
'ASM
' CONFIG OSCS=OFF, OSC=HS
' ; Oscillator switchover disabled, HS Osc enabled
' CONFIG BOR=ON, PWRT=ON, BORV=27
' ; BOR on, BOR acts at 2.7v
' CONFIG WDT=ON, WDTPS=128
' ; WDT off
' CONFIG STVR=ON, LVP=OFF, DEBUG=OFF
' ; Stack over/underflow reset enabled
' ; LVP disabled
' ; Background debugger disabled
'endasm

This is the 18f452.inc file which, as mentioned, works

;************************************************* ***************
;* 18F452.INC *
;* *
;* By : Leonard Zerman, Jeff Schmoyer *
;* Notice : Copyright (c) 2004 microEngineering Labs, Inc. *
;* All Rights Reserved *
;* Date : 01/27/04 *
;* Version : 2.45 *
;* Notes : *
;************************************************* ***************
NOLIST
ifdef PM_USED
LIST
"Error: PM does not support this device. Use MPASM."
NOLIST
else
LIST
LIST p = 18F452, r = dec, w = -311, f = inhx32
INCLUDE "P18F452.INC" ; MPASM Header
;__CONFIG _CONFIG1H, _OSCS_OFF_1H & _XT_OSC_1H
;__CONFIG _CONFIG2H, _WDT_ON_2H & _WDTPS_128_2H
;__CONFIG _CONFIG4L, _LVP_OFF_4L
CONFIG OSCS=OFF, OSC=HS
CONFIG BOR=ON, PWRT=ON, BORV=27
CONFIG WDT=ON, WDTPS=128
CONFIG STVR=ON, LVP=OFF, DEBUG=OFF
NOLIST
endif
LIST
EEPROM_START EQU 0F00000h
BLOCK_SIZE EQU 8


Any insight into the problem would be a help.
BTW, PBPv2.46

regards

Angus

[Bruce]

The new 18F config directive without the double underscore only works if you use it in the .inc file. They will not work when inserted directly in your code.

If you comment out 18F config settings in the default PBP .inc file, then insert them directly in your code, you'll have to use the older __config directive.

Newer versions of PBP include files now have the w = -230 option to suppress the deprecated warning message MPASM spits out when it sees the older __config directive, but it still doesn't allow inserting the new directives inline.

[Angus Anderson]

Hey Bruce-

Wow! Thanks for solving the problem. Reliable as ever!

Just wish that it was easier to find documented answers to problems such as this.

Regards

Angus Anderson