18F2620 pbp3 example config please

[retepsnikrep]

Having never used any 18F chips I'm after an example config section of code to have a look at before I try to migrate my code to the new pic.

My current 16F886 config looks like this



#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


My 16F886 defines look like the below any obvious issues with those and 18F2620 pic. It should be pin compatible I believe.



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

DEFINE LCD_DREG PORTB 'PORTB is LCD data port
DEFINE LCD_DBIT 0 'PORTB.0 is the data LSB
DEFINE LCD_RSREG PORTC 'RS is connected to PORTC.0
DEFINE LCD_RSBIT 0
DEFINE LCD_EREG PORTC 'EN is connected to PORTC.1
DEFINE LCD_EBIT 1
DEFINE LCD_BITS 8 '8 lines of data are used
DEFINE LCD_LINES 4 'It is a 4-line display
DEFINE LCD_COMMANDUS 2000 'Use 2000uS command delay
DEFINE LCD_DATAUS 50 'Use 50uS data delay

DEFINE ADC_BITS 8 'Set number of bits in result
DEFINE ADC_CLOCK 3 'Set Clock source (3 = rc)
DEFINE ADC_SAMPLEUS 50 'Set sampling time in uS

DEFINE CCP1_REG PORTC 'HPWM channel 1 pin Port C Backlight PWM Driver
DEFINE CCP1_BIT 2 'HPWM channel 1 pin Bit 2


Thanks Peter

[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.

[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.

[HenrikOlsson]

Hi,
My guess is that it's because on the 16 series (10 & 12 too I believe) the memory is "measured" in WORDS (14-bit words if I'm not mistaken) while on the 18 series it's measured in BYTES. So I don't think your program is actually getting twice as big, it's just displaying the size of it in BYTES instead of in WORDS.

/Henrik.

[retepsnikrep]

I still get the some config bits warning with pickit 2.
I can't see why?



'------------------------------ 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_ON_2H & _WDTPS_512_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 = %01110000 'Internal 8 mhz Osc

WDTCON = %00010101 'Set watchdog Timer for 1 second

CMCON = %00000111 'Comparators Off
CVRCON = %00000000 'CvRef Powered Down

CCP1CON= %00001100 'CCP1 Module PWM Mode
CCP2CON= %00000000 'CCP2 Module Disabled

HLVDCON= %00000000 'HLVCON Disabled

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 AN0
ADCON1 = %00001110 'SETUP ADC SET REFV to VDD & VSS AN0
ADCON2 = %00100010 'SETUP ADC FOSC/32 LEFT JUSTIFY TAD 8

[HenrikOlsson]

Hi,
What exactly does that mean, what warnings do you get and from where do you get them?

Your code compiles and assembles fine with PBP 3.0.7.4 & MPASM 5.45. Are you using the standalone software for the PICKit2 and is it THAT software that gives you these misterious warnings?

/Henrik.

[Darrel Taylor]

Make a "Complete" set of configs for any chip with ease.

meCONFIG
http://support.melabs.com/content/563-meCONFIG

[retepsnikrep]

Yes the pickit 2 software states when programming that some configuration bits not in acceptable condition. It still programs and works fine but is disconcerting for users.

That new meconfig software is interesting I see quite a few bits/parameters I have ignored/did not know about. :?

[Darrel Taylor]

The PICkit software expects to see a value for EVERY configuration word.

The latest versions of PBP3 do create default values for all of them.
But when you use the #CONFIG block, it overrides all of the defaults, and you should include a "Complete" set for use with the PICkit programmers.

Like you said, it will program and work ... but a complete set of configs will eliminate that warning.

[richard]

melabs have a neat config editor meCONFIG ITS WORTH DOWNLOADING and free , or check out the DEVICE_REFERENCE folder in your pbp3 installed directory


but for now try this

#CONFIG
CONFIG OSC = INTIO67
CONFIG FCMEN = OFF
CONFIG IESO = OFF
CONFIG PWRT = OFF
CONFIG BOREN = OFF
CONFIG BORV = 3
CONFIG WDT = ON
CONFIG WDTPS = 512
CONFIG CCP2MX = PORTC
CONFIG PBADEN = OFF
CONFIG LPT1OSC = OFF
CONFIG MCLRE = ON
CONFIG STVREN = ON
CONFIG LVP = OFF
CONFIG XINST = OFF
CONFIG DEBUG = OFF
CONFIG CP0 = OFF
CONFIG CP1 = OFF
CONFIG CP2 = OFF
CONFIG CP3 = OFF
CONFIG CPB = OFF
CONFIG CPD = OFF
CONFIG WRT0 = OFF
CONFIG WRT1 = OFF
CONFIG WRT2 = OFF
CONFIG WRT3 = OFF
CONFIG WRTC = OFF
CONFIG WRTB = OFF
CONFIG WRTD = OFF
CONFIG EBTR0 = OFF
CONFIG EBTR1 = OFF
CONFIG EBTR2 = OFF
CONFIG EBTR3 = OFF
CONFIG EBTRB = OFF
#ENDCONFIG


ps not sure why your asking for PIC18F4520 config info in a 18F2620 thread why not start a new one ?

[richard]

the correct syntax and available config word (fuse) settings are available in the pbp3 device_reference folder

File: PIC18F4520.INFO



;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Available configuration settings for PIC18F4520:
;
;
; Oscillator Selection bits
; CONFIG OSC = INTIO7 ;Internal oscillator block, CLKO function on RA6, port function on RA7
; CONFIG OSC = INTIO67 ;Internal oscillator block, port function on RA6 and RA7
; CONFIG OSC = RCIO6 ;External RC oscillator, port function on RA6
; CONFIG OSC = HSPLL ;HS oscillator, PLL enabled (Clock Frequency = 4 x FOSC1)
; CONFIG OSC = ECIO6 ;EC oscillator, port function on RA6
; CONFIG OSC = EC ;EC oscillator, CLKO function on RA6
; CONFIG OSC = RC ;External RC oscillator, CLKO function on RA6
; CONFIG OSC = HS ;HS oscillator
; CONFIG OSC = XT ;XT oscillator
; CONFIG OSC = LP ;LP oscillator

[Demon]

Assembler uses columns, leave the same spacing as in the INC file.

Robert

[richard]

according to the book if I have the right code


217 Attempt to Generate Code in Non-Code Segment

Due to the Harvard Architecture (split code and data spaces) of the PICmicro
MCUs, instructions may only be executed from CODE space (ROM). This error
indicates that an attempt was made to generate opcodes in the data or
EEPROM segments. In general, only the DS pseudo-op is legal in the data
segment and DS, DB and DW are the only legal pseudo-ops in the EEPROM
segment.


if that doesn't help you might need to post your latest code

[Archangel]

according to the book if I have the right code



if that doesn't help you might need to post your latest code
. . . and please use code tags as follows . . .


post code here



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