18F2620 pbp3 example config please

[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.

[retepsnikrep]

Thanks for the guidance here is my new 18F2620 config.

'------------------------------ New General 18F2620 configuration --------------------------
'#CONFIG
' __CONFIG _CONFIG1H, _OSC_INTIO67_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
' __CONFIG _CONFIG2L, _PWRT_OFF_2L & _BOREN_OFF_2L
' __CONFIG _CONFIG2H, _WDT_OFF_2H
' __CONFIG _CONFIG3H, _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_OFF_3H
' __CONFIG _CONFIG4L, _STVREN_OFF_4L & _LVP_OFF_4L & _XINST_OFF_4L & _DEBUG_OFF_4L
'#ENDCONFIG
'DEFINE OSC 8   'Set PicBasic Pro processor speed to 8 Mhz   
'OSCCON = %01110110   'Internal 8 mhz Osc and stable 
'CMCON  = %00000111  'Comparators Off
'T1CON  = %00110000  '$30 = Prescaler 1:8, TMR1 OFF
 
'TRISA = %00001011   'SET PORTA0, A1 & A3 AS INPUTS, REST AS OUTPUTS
'TRISB = %00000000   'SET PORTB AS OUTPUTS
'TRISC = %10010000   'SET PORTC AS OUTPUTS EXCEPT PORT C4 & C7
 
'ADCON0 = %00000001  'SETUP ADC & ENABLE ADC MODULE on AD0
'ADCON1 = %00001110  'SETUP ADC SET REFV to VDD & VSS AN0 
'ADCON2 = %00100010  'SETUP ADC FOSC/32 LEFT JUSTIFY TAD 8

Below is my working old 16F886 config. Any glaring errors in the above? I'm just swapping chips and I want all functions to remain the same.

'------------------------------ General 16F886 configuration --------------------------
#CONFIG
 __CONFIG _CONFIG1, _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_OFF & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_OFF & _WDT_OFF & 
_INTRC_OSC_NOCLKOUT
 __CONFIG _CONFIG2, _WRT_OFF & _BOR21V
#ENDCONFIG
DEFINE OSC 8   'Set PicBasic Pro processor speed to 8 Mhz   
OSCCON = %01110101   'Internal 8 mhz Osc and stable 
CM1CON0 = 0    'Comparator Off
CM2CON0 = 0    'Comparator Off
T1CON  = %00110000  '$30 = Prescaler 1:8, TMR1 OFF
 
TRISA = %00001011   'SET PORTA0, A1 & A3 AS INPUTS, REST AS OUTPUTS
TRISB = %00000000   'SET PORTB AS OUTPUTS
TRISC = %10010000   'SET PORTC AS OUTPUTS EXCEPT PORT C4 & C7
 
ANSEL  = %00000001  'SET INPUT AN0 AS ANALOG INPUT
ANSELH = %00000000              'Disable PortB AD
 
ADCON0 = %10000001  'SETUP ADC CONVERTER MODULE FOSC/32 & ENABLE ADC MODULE on AD0
ADCON1 = %00000000  'SETUP ADC LEFT JUSTIFY SET REFV to VDD & VSS

Thanks Peter

[retepsnikrep]

I moved to a new pic to gain memory space but the same program compiled for the new pic is nearly twice the size as the 16F886 version :?
Why is that and can I get some memory back. I don't need 18F longs for instance and that is already disabled in the compiler.