18F2620 pbp3 example config please

[retepsnikrep]

Anyone with a config for a similiar 18F chip then? 2525, 4525, 4620?

[retepsnikrep]

I found this example so will keep trying.

#CONFIG
__CONFIG _CONFIG1H, _OSC_HS_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
__CONFIG _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
__CONFIG _CONFIG3H, _CCP2MX_PORTC_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_ON_3H
__CONFIG _CONFIG4L, _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L
#ENDCONFIG

[prstein]

I did a migration of code from the 16F877 to the 18F452. They are *both* kind of older now...8^) If you thought it would be useful I can dig up the configurations for comparison. I never throw old code away, I just archive it. I've got versions of this particular ported code that go back to nearly the previous centrury.

Best Regards,
Paul

[retepsnikrep]

If you have something it would be useful thanks.

[Charles Linquis]

The configs aren't so much different. If you use a programmer like an ICD2/3 or a PICKIT3, MPLAB will show you the options.

The easiest thing to do would be to set it up in a way that makes sense and simply try it.

[mackrackit]

The sub directory, "DEVICE_REFERENCE" of the PBP3 directory has an example with and all of the options listed.

[retepsnikrep]

That's very useful thanks but how do you know which configs go on which line ? can you mix them up?

CONFIG1H? xxxx & xxxx & xxxx etc etc
CONFIG2H?
CONFIG3H?
etc

Or do you just have as many config lines as reqd?

[mackrackit]

Maybe I am not understanding the question, the 1H things go on the 1H line, 2H on the 2H line...

[HenrikOlsson]

Hi,
Just look at the .INFO file, it has a "section" for each CONFIG you can possibly set for the device, choose one from each section if you don't know the default, like:

; This is for the 18F26K20
#CONFIG
  CONFIG FOSC = HSPLL
  CONFIG FCMEM = ON
  CONFIG IESO = OFF
  CONFIG PWRT = ON
  CONFIG BOREN = OFF
  ; And so on
#ENDCONFIG

That way you don't have to know which bit belongs to which register.

Otherwise you have to resort to the datasheet and/or the .inc file for the device located in the MPASM directory, at the bottom of that file you'll find which bit goes where, like:

;----- CONFIG1H Options --------------------------------------------------
_FOSC_LP_1H          EQU  H'F0'    ; LP oscillator
_FOSC_XT_1H          EQU  H'F1'    ; XT oscillator
_FOSC_HS_1H          EQU  H'F2'    ; HS oscillator
_FOSC_RC_1H          EQU  H'F3'    ; External RC oscillator, CLKOUT function on RA6
_FOSC_EC_1H          EQU  H'F4'    ; EC oscillator, CLKOUT function on RA6
_FOSC_ECIO6_1H       EQU  H'F5'    ; EC oscillator, port function on RA6
_FOSC_HSPLL_1H       EQU  H'F6'    ; HS oscillator, PLL enabled (Clock Frequency = 4 x FOSC1)
_FOSC_RCIO6_1H       EQU  H'F7'    ; External RC oscillator, port function on RA6
_FOSC_INTIO67_1H     EQU  H'F8'    ; Internal oscillator block, port function on RA6 and RA7
_FOSC_INTIO7_1H      EQU  H'F9'    ; Internal oscillator block, CLKOUT function on RA6, port function on RA7
_FCMEN_OFF_1H        EQU  H'BF'    ; Fail-Safe Clock Monitor disabled
_FCMEN_ON_1H         EQU  H'FF'    ; Fail-Safe Clock Monitor enabled
_IESO_OFF_1H         EQU  H'7F'    ; Oscillator Switchover mode disabled
_IESO_ON_1H          EQU  H'FF'    ; Oscillator Switchover mode enabled


;----- CONFIG2L Options --------------------------------------------------
_PWRT_ON_2L          EQU  H'FE'    ; PWRT enabled
_PWRT_OFF_2L         EQU  H'FF'    ; PWRT disabled
_BOREN_OFF_2L        EQU  H'F9'    ; Brown-out Reset disabled in hardware and software
_BOREN_ON_2L         EQU  H'FB'    ; Brown-out Reset enabled and controlled by software (SBOREN is enabled)
_BOREN_NOSLP_2L      EQU  H'FD'    ; Brown-out Reset enabled in hardware only and disabled in Sleep mode (SBOREN is disabled)
_BOREN_SBORDIS_2L    EQU  H'FF'    ; Brown-out Reset enabled in hardware only (SBOREN is disabled)
_BORV_30_2L          EQU  H'E7'    ; VBOR set to 3.0 V nominal
_BORV_27_2L          EQU  H'EF'    ; VBOR set to 2.7 V nominal
_BORV_22_2L          EQU  H'F7'    ; VBOR set to 2.2 V nominal
_BORV_18_2L          EQU  H'FF'    ; VBOR set to 1.8 V nominal

And so on but again, I prefer the new way posted above.

/Henrik.