Another 2.60 worry

[muddy0409]

Aah, there it is. I didn't look through the whole directory, did I?
So If I change
__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_ON & _MCLRE_ON & _LVP_OFF & _CP_OFF
NOLIST
endif

to

__config _CONFIG1, _XT_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF
NOLIST
endif

that should then make the default suit my preference? And I shouldn't need to do a config with any new programs, unless I want or need to change them?

Thanks Man.

[muddy0409]

after a bit more experimentation....should be

__config _CONFIG1, _XT_OSC & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF
NOLIST
endif

[HenrikOlsson]

Yep, looks good to me. As you can see, the different configuration settings for the oscillator (and everything else) are at the bottom of the P16F886.inc file (the one in the MPASM folder):

_LP_OSC                      EQU     H'3FF8'
_XT_OSC                      EQU     H'3FF9'
_HS_OSC                      EQU     H'3FFA'
_EC_OSC                      EQU     H'3FFB'
_INTRC_OSC_NOCLKOUT          EQU     H'3FFC'
_INTRC_OSC_CLKOUT            EQU     H'3FFD'
_EXTRC_OSC_NOCLKOUT          EQU     H'3FFE'
_EXTRC_OSC_CLKOUT            EQU     H'3FFF'
_INTOSCIO                    EQU     H'3FFC'
_INTOSC                      EQU     H'3FFD'
_EXTRCIO                     EQU     H'3FFE'
_EXTRC                       EQU     H'3FFF'

On the 16F886 there are two CONFIG words (on other chips there are more) so if you need to change something that resides in another CONFIG word you have to add a second line, like

   __config _CONFIG2, WRT_HALF & _BOR21V

Then you have your defaults and it is what will be included in every program you compile for that particular target, no need to have them in your code if you don't want to.

/Henrik.

[cncmachineguy]

Just throwing in my 10 cents here. Instead of changing the defaults in the PBP file, just make a seperate file with the configs you want. It can be a 1 line file with just

__config yada yada yada

then "INCLUDE" the file in your programs. There are 2 reasons I suggest this. First is if you change the PBP file, then upgrade later, all your changes are lost. Second It is a simple matter to change your include file for different setups like now you want to use internal osc and so forth. Also it is much easier to understand for YOU in a year or 2 what the configs were doing without having to track down the .inc and read it.

[muddy0409]

Just throwing in my 10 cents here. Instead of changing the defaults in the PBP file, just make a seperate file with the configs you want. It can be a 1 line file with just

__config yada yada yada

then "INCLUDE" the file in your programs. There are 2 reasons I suggest this. First is if you change the PBP file, then upgrade later, all your changes are lost. Second It is a simple matter to change your include file for different setups like now you want to use internal osc and so forth. Also it is much easier to understand for YOU in a year or 2 what the configs were doing without having to track down the .inc and read it.

Yeah, I probably will do that as soon as I work out the exact syntax etc. However the change to the inc file was a nice quick fixaround which works fine for now.

[HenrikOlsson]

It's a good suggestion, just remember that you still have to edit the stock .INC file, commenting out the default config that's there.

[jellis00]

Bert, your idea of putting CONFIG statement in an include file is a great one that I want to implement in all of my codes. However, I tried it in one of my working application codes and the code stopped working afterwards. In hopes you can tell me why here is what I did:
1. I created a new .inc file by copying and pasting the following statements into a new code file and saving it as a .inc file in the PBP folder where all of my codes are in a subfolder to the PBP folder.
INCLUDE "18F2550_4550_CONFIGS.inc" ' Setup CONFIGS for MCU
;--- if you un-comment these, you must comment the ones in the .inc file--
;ASM ; 18F2550/4550, 8mhz crystal
;__CONFIG _CONFIG1L, _PLLDIV_2_1L & _CPUDIV_OSC4_PLL6_1L & _USBDIV_2_1L
;__CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H
;__CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_OFF_2L & _VREGEN_ON_2L
;__CONFIG _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
;__CONFIG _CONFIG3H, _PBADEN_OFF_3H ; PortB resets as digital
;__CONFIG _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L
;ENDASM

2. I then replaced the CONFIG statements in my application code with the follwoing statement in which I commented out all of the original CONFIG statements:
Include "18F2550_4550_CONFIGS.inc"
;--- if you un-comment these, you must comment the ones in the .inc file--
;ASM ; 18F2550/4550, 8mhz crystal
; __CONFIG _CONFIG1L, _PLLDIV_2_1L & _CPUDIV_OSC4_PLL6_1L & _USBDIV_2_1L
; __CONFIG _CONFIG1H, _FOSC_HSPLL_HS_1H
; __CONFIG _CONFIG2L, _PWRT_ON_2L & _BOR_OFF_2L & _VREGEN_ON_2L
; __CONFIG _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
; __CONFIG _CONFIG3H, _PBADEN_OFF_3H ; PortB resets as digital
; __CONFIG _CONFIG4L, _LVP_OFF_4L & _XINST_OFF_4L
;ENDASM

3. The modified application code compiles and assembles OK and appears to run, but it no longer works correctly and I can't see why.

4. If I comment out the new .inc statement and uncomment the _CONFIG statements it works OK again.

Can you tell me what I am doing wrong?
Thanks, John Ellis

[cncmachineguy]

I assume they are not commented in the include file? I usually give the file a PBP extension, but I doubt that is it.Can you attach the .lst file created when you use the include?

[Archangel]

Just my thoughts . . . change the file extension to .bas and make it the first line of code . . .

[jellis00]

I assume they are not commented in the include file? I usually give the file a PBP extension, but I doubt that is it.Can you attach the .lst file created when you use the include?

I found what apparently was causing the problem, but don't quite understand why. I changed the file extension to .pbp and had it in a 2nd level folder below my PBP folder while my application code resides in a 3rd level folder. IT was my understanding that as long as an include file was in a folder at a higher level than the code that was using it, that the INCLUDE statement would find it. However, unless I placed the include file in the same folder as my application code or moved the file to the PBP folder my application code wouldn't work. As long as it was in the 2nd level folder my application code wouldn't work.

Can anyone tell me how this works?