Presetting Configuration Fuses (PIC Defines) into your Program

[boroko]

This doesn't directly apply to your situation this time, but I did run into a sneaky change the other day that took me a while to notice..
I was trying to change the oscillator config on a 18F1320. I had been recently using 18F1330s and just assumed they would be the same since they were so close family wise. Bad assumption. Here are the two together.

;****************************************************************
;*  18F1330.INC                                                 *
;*                                                              *
;*  By        : Leonard Zerman, Jeff Schmoyer                   *
;*  Notice    : Copyright (c) 2006 microEngineering Labs, Inc.  *
;*              All Rights Reserved                             *
;*  Date      : 06/05/06                                        *
;*  Version   : 2.47                                            *
;*  Notes     :                                                 *
;****************************************************************
        NOLIST
    ifdef PM_USED
        LIST
        "Error: PM does not support this device.  Use MPASM."
        NOLIST
    else
        LIST
        LIST p = 18F1330, r = dec, w = -311, w = -230, f = inhx32
        INCLUDE "P18F1330.INC"  ; MPASM  Header
        __CONFIG    _CONFIG1H, _OSC_INTIO2_1H 
       ; __CONFIG    _CONFIG1H, _OSC_XT_1H
        __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
        __CONFIG    _CONFIG4L, _XINST_OFF_4L
        NOLIST
    endif
        LIST
EEPROM_START	EQU	0F00000h
BLOCK_SIZE	EQU	8

'==============================================================================
'==============================================================================

;****************************************************************
;*  18F1320.INC                                                 *
;*                                                              *
;*  By        : Leonard Zerman, Jeff Schmoyer                   *
;*  Notice    : Copyright (c) 2006 microEngineering Labs, Inc.  *
;*              All Rights Reserved                             *
;*  Date      : 06/05/06                                        *
;*  Version   : 2.47                                            *
;*  Notes     :                                                 *
;****************************************************************
        NOLIST
    ifdef PM_USED
        LIST
        "Error: PM does not support this device.  Use MPASM."
        NOLIST
    else
        LIST
        LIST p = 18F1320, r = dec, w = -311, w = -230, f = inhx32
        INCLUDE "P18F1320.INC"  ; MPASM  Header
        __CONFIG    _CONFIG1H, _INTIO2_OSC_1H    ; this for INT OSC 
    ;   __CONFIG    _CONFIG1H, _XT_OSC_1H	 ;was this for XT OSC
        __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
        __CONFIG    _CONFIG4L, _LVP_OFF_4L
        NOLIST
    endif
        LIST
EEPROM_START	EQU	0F00000h
BLOCK_SIZE	EQU	8

the commented out part was my addition, but notice the different syntax for the oscillator statement.
Just hadn't run into that before.
Bo

[boroko]

Hi all,

I have tried to find where the @MyConfig references were without any success. Anyone have them bookmarked?
I still don't have a good handle on changing these without tweaking the .inc files and I'm afraid that's going to bite me someday (even though I do leave the original lines REM'd).

I have seen @MyConfig used, but don't know if there are any caveats.

Thanks
Bo

[Archangel]

Hi Bo,
@__Config MyConfig was something Darrel came up with for me, so as to be able to put the config statements on several lines. This was so I could see them without having to scroll across some 100 or so places on the screen. I have MCS set up with large fonts as I have rather poor vision. You still have to comment out the default configs and place the correct configs in your code. It simply allows you to put them on multiple lines. Search for my posts and you will find examples of it's use. If you need examples I can post some Saturday after my new cable internet connection get's hooked up, until then I am not at home while in here.
JS

[RussMartin]

Okay, I've rummaged through the manual, looked at several old threads, and at the "include" files for the device (16F88). I've carefully read through Melanie's post on the subject http://www.picbasic.co.uk/forum/show...16&postcount=1

Whatever occurs after @_config generates error 122 ("illegal opcode"). It also appears that _INTRC_IO doesn't want to fly. I'm using MPASM.

Maybe I've not found the right thread yet.

HELP!

[Darrel Taylor]

I don't think it's what's after it, it's the config...

@ __config _CONFIG1, _xxxx
That's @ space two(2) underscores config space "the _CONFIG? word" comma etc...
Only 1 underscore for the config word and options.

[RussMartin]

Yep, it was the double underscore. Then I commented out the line in the INC file, and everything is peachy-keeno.

Thanks!