Configuration bits 18F45K20

[robertg]

Attempting to set configuration bits using PB pro 3 and running version 8.88 MPIDE and trying to work out how to set and use the internal oscillator as follows

#CONFIG
__CONFIG _CONFIG1H, _FOSC_HS_1H
#ENDCONFIG


If I replace HS with either INTOSCIO or INTOSC it fails to compile with:
Error[113] C:\PIC\WORK\RF_REMOTE2.ASM 30 : Symbol not previously defined (_FOSC_INTOSC_1H)

Could someone please advise what probably something simple that I'm missing.

Thanks,

Rob.

[HenrikOlsson]

Hi,
As far as I can see It's either INTIO7 or INTIO67 depending on if you want ClkOut on RA6 or not.

Remember that when adding your own CONFIG like this ALL of the PBP default ones gets thrown out the window and replaced with yours instead. It's not only changing ones you give it. So, it's usually best to copy the default ones and then change and/or add to them or there's a quite a chance of you missing something.

  #CONFIG
    CONFIG  FOSC = INTIO67        ; Internal Oscillator, no clock out
    CONFIG  FCMEN = OFF           ; Fail-Safe Clock Monitor disabled
    CONFIG  IESO = OFF            ; Oscillator Switchover mode disabled
    CONFIG  PWRT = OFF            ; PWRT disabled
    CONFIG  BOREN = SBORDIS       ; Brown-out Reset enabled in hardware only (SBOREN is disabled)
    CONFIG  BORV = 18             ; VBOR set to 1.8 V nominal
    CONFIG  WDTEN = ON            ; WDT is always enabled. SWDTEN bit has no effect
    CONFIG  WDTPS = 512           ; 1:512
    CONFIG  CCP2MX = PORTC        ; CCP2 input/output is multiplexed with RC1
    CONFIG  PBADEN = OFF          ; PORTB<4:0> pins are configured as digital I/O on Reset
    CONFIG  LPT1OSC = OFF         ; Timer1 configured for higher power operation
    CONFIG  HFOFST = ON           ; HFINTOSC starts clocking the CPU without waiting for the oscillator to stablize.
    CONFIG  MCLRE = ON            ; MCLR pin enabled; RE3 input pin disabled
    CONFIG  STVREN = ON           ; Stack full/underflow will cause Reset
    CONFIG  LVP = OFF             ; Single-Supply ICSP disabled
    CONFIG  XINST = OFF           ; Instruction set extension and Indexed Addressing mode disabled (Legacy mode)
    CONFIG  DEBUG = OFF           ; Background debugger disabled, RB6 and RB7 configured as general purpose I/O pins
    CONFIG  CP0 = OFF             ; Block 0 (000800-001FFFh) not code-protected
    CONFIG  CP1 = OFF             ; Block 1 (002000-003FFFh) not code-protected
    CONFIG  CP2 = OFF             ; Block 2 (004000-005FFFh) not code-protected
    CONFIG  CP3 = OFF             ; Block 3 (006000-007FFFh) not code-protected
    CONFIG  CPB = OFF             ; Boot block (000000-0007FFh) not code-protected
    CONFIG  CPD = OFF             ; Data EEPROM not code-protected
    CONFIG  WRT0 = OFF            ; Block 0 (000800-001FFFh) not write-protected
    CONFIG  WRT1 = OFF            ; Block 1 (002000-003FFFh) not write-protected
    CONFIG  WRT2 = OFF            ; Block 2 (004000-005FFFh) not write-protected
    CONFIG  WRT3 = OFF            ; Block 3 (006000-007FFFh) not write-protected
    CONFIG  WRTC = OFF            ; Configuration registers (300000-3000FFh) not write-protected
    CONFIG  WRTB = OFF            ; Boot Block (000000-0007FFh) not write-protected
    CONFIG  WRTD = OFF            ; Data EEPROM not write-protected
    CONFIG  EBTR0 = OFF           ; Block 0 (000800-001FFFh) not protected from table reads executed in other blocks
    CONFIG  EBTR1 = OFF           ; Block 1 (002000-003FFFh) not protected from table reads executed in other blocks
    CONFIG  EBTR2 = OFF           ; Block 2 (004000-005FFFh) not protected from table reads executed in other blocks
    CONFIG  EBTR3 = OFF           ; Block 3 (006000-007FFFh) not protected from table reads executed in other blocks
    CONFIG  EBTRB = OFF           ; Boot Block (000000-0007FFh) not protected from table reads executed in other blocks

;  #ENDCONFIG

[robertg]

Thanks Henrik!

That worked, but where did you find all those configuration bits? I've looked high an low but all documentation I've seen refers to INTOSCIO or INTOSC or something along those lines?

Rob.

[HenrikOlsson]

Hi Rob,
Have you looked in the manual ;-)

In section 4.9, #CONFIG....#ENDCONFIG it says (among other things):

Microchip determines the form and syntax of the actual configuration directives, and they are not consistent for different families of PIC microcontrollers. We have attempted to include the information for each chip in a device information file. The files are located in your PBP install in the Device Reference folder. (PIC16F877.INFO, PIC18F4620.INFO, etc.)

That's where I found it.

/Henrik.

[robertg]

Hi Henrik,

Guess I didn't read that section!! :-(

Rob.