PIC18F25K20 Problem

[joe rocci]

Error message "Processor type is undefined". Works fine with other processor types.

I'm using the "Hot Release" version of GCB in the "Downloads" section.

Joe

[Anobium]

Thank you.

Would you please post your code? I am not being funny but the code really helps.

[joe rocci]

I paired it down to one line:

"#chip 18f25k20,4"

It won't even work with that. Seems to compile but not assemble.

[Anobium]

Please check you have the chip file installed in folder ..\GreatCowBasic\chipdata\18F25K20.dat

[joe rocci]

Yup, it's there

[Anobium]

Post the error file. Works ok here and on my two test machines.

[joe rocci]

I was looking for an error file, in the same folder as asm and lst, but couldn't find it. What's it called?

[Anobium]

errors.txt

[joe rocci]

I can't find it, either in the GCB folder or in the folder that has the application source & asm files. Besides, I think that's a compiler error file, isn't it? It seems to get through the compilation phase but it hiccups in the assembler.

[Anobium]

What assembler are you using?

Did this work in previous versions of Great Cow Basic ?

[Anobium]

Are you missing the P18F25K20.inc for your assembler?

Here is my ASM. Works for me.

;Program compiled by Great Cow BASIC (0.9 28/4/2014)
;Need help? See the GCBASIC forums at http://sourceforge.net/projects/gcbasic/forums,
;check the documentation or email w_cholmondeley at users dot sourceforge dot net.

;********************************************************************************

;Set up the assembler options (Chip type, clock source, other bits and pieces)
 LIST p=18F25K20, r=DEC
#include <P18F25K20.inc>
 CONFIG LVP = OFF, MCLRE = OFF, WDTEN = OFF, FOSC = INTIO67

;********************************************************************************

;Vectors
    ORG 0
    goto    BASPROGRAMSTART
    ORG 8
    retfie

;********************************************************************************

;Start of program memory page 0
    ORG 12
BASPROGRAMSTART
;Call initialisation routines
    rcall   INITSYS

;Start of the main program
BASPROGRAMEND
    sleep
    bra BASPROGRAMEND

;********************************************************************************

INITSYS
;OSCCON = OSCCON AND b'10001111'
    movlw   143
    andwf   OSCCON,F,ACCESS
;OSCCON = OSCCON OR b'01100000'
    movlw   96
    iorwf   OSCCON,F,ACCESS
;BSR = 0
    clrf    BSR,ACCESS
;TBLPTRU = 0
    clrf    TBLPTRU,ACCESS
;SET ADCON0.ADON OFF
    bcf ADCON0,ADON,ACCESS
;SET ADFM OFF
    bcf ADCON2,ADFM,ACCESS
;ANSEL = 0
    clrf    ANSEL,ACCESS
;ANSELH = 0
    clrf    ANSELH,ACCESS
;C2ON = 0
    bcf CM2CON0,C2ON,ACCESS
;C1ON = 0
    bcf CM1CON0,C1ON,ACCESS
;PORTA = 0
    clrf    PORTA,ACCESS
;PORTB = 0
    clrf    PORTB,ACCESS
;PORTC = 0
    clrf    PORTC,ACCESS
;PORTE = 0
    clrf    PORTE,ACCESS
    return

;********************************************************************************

 END

[joe rocci]

This started when I switched my previously working project from a 18F4455 to the 18F25K20. I then updated my installation version to see if that fixed it, which it didn't. I eventually paired it down to just the one line, which works with other processors. It seems to get through the compile process, but it spits out numerous "unknown processor type" errors once it gets in the assembly phase. The assembler is the stock GPASM that ships with GCB.

FYI, I have a folder in my GCB installation (which is under the Prithvi folder) called "header" and that has the P18F25K20.inc file and another folder called "chipdata" that has the corresponding .dat file.

I'd say it's a problem with my installation, but it works with other processors, so I'm baffled.

[Anobium]

Me too, I guess it is your config. I now only @syn.

Try @syn please, get things working then revert back gpasm.

[joe rocci]

BTW, you won't see the problem in the asm file, as the compilation from GCB to assembly code seems to work OK. You DO see it in the assembler's lst file, as the following snippet shows:

gpasm-0.13.6 beta C:\Documents and Settings\Joe Rocci\test.asm4-30-2014 16:00:38 PAGE 1

LOC OBJECT CODE LINE SOURCE TEXT
VALUE

           00001 ;Program compiled by Great Cow BASIC (0.9 17/2/2014)
           00002 ;Need help? See the GCBASIC forums at http://sourceforge.net/projects/gcbasic/forums,
           00003 ;check the documentation or email w_cholmondeley at users dot sourceforge dot net.
           00004 
           00005 ;********************************************************************************
           00006 
           00007 ;Set up the assembler options (Chip type, clock source, other bits and pieces)

Error [132] : Unknown processor.
00008 LIST p=18F25K20, r=DEC
00009 #include <P18F25K20.inc>
00001 LIST
00002
00003 ;==========================================================================
00004 ; MPASM PIC18F25K20 processor include
00005 ;
00006 ; (c) Copyright 1999-2008 Microchip Technology, All rights reserved
00007 ;==========================================================================
00008
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
Error [131] : Processor type is undefined.
01351 LIST
Error [131] : Processor type is undefined.
00010 CONFIG LVP = OFF, MCLRE = OFF, WDTEN = OFF, FOSC = INTIO67
00011
00012 ;***********
00013
00014 ;Vectors
Error [131] : Processor type is undefined.
00015 ORG 0
Error [131] : Processor type is undefined.
00016 goto BASPROGRAMSTART
Error [131] : Processor type is undefined.
00017 ORG 8
Error [131] : Processor type is undefined.
00018 retfie
00019
00020 ;***********
00021
00022 ;Start of program memory page 0
Error [131] : Processor type is undefined.
00023 ORG 12
0000 00024 BASPROGRAMSTART
00025 ;Call initialisation routines
Error [131] : Processor type is undefined.
00026 rcall INITSYS
00027
gpasm-0.13.6 beta C:\Documents and Settings\Joe Rocci\test.asm4-30-2014 16:00:38 PAGE 2

LOC OBJECT CODE LINE SOURCE TEXT
VALUE

           00028 ;Start of the main program

0000 00029 BASPROGRAMEND
Error [131] : Processor type is undefined.
00030 sleep
Error [131] : Processor type is undefined.
00031 bra BASPROGRAMEND
00032
00033 ;***********
00034
0000 00035 INITSYS
Error [131] : Processor type is undefined.
00036 movlw 143
Error [131] : Processor type is undefined.
00037 andwf OSCCON,F,ACCESS
Error [131] : Processor type is undefined.
00038 movlw 96
Error [131] : Processor type is undefined.
00039 iorwf OSCCON,F,ACCESS
Error [131] : Processor type is undefined.
00040 clrf BSR,ACCESS
Error [131] : Processor type is undefined.
00041 clrf TBLPTRU,ACCESS
Error [131] : Processor type is undefined.
00042 bcf ADCON0,ADON,ACCESS
Error [131] : Processor type is undefined.
00043 bcf ADCON2,ADFM,ACCESS
Error [131] : Processor type is undefined.
00044 clrf ANSEL,ACCESS
Error [131] : Processor type is undefined.
00045 clrf ANSELH,ACCESS
Error [131] : Processor type is undefined.
00046 bcf CM2CON0,C2ON,ACCESS
Error [131] : Processor type is undefined.
00047 bcf CM1CON0,C1ON,ACCESS
Error [131] : Processor type is undefined.
00048 clrf PORTA,ACCESS
Error [131] : Processor type is undefined.
00049 clrf PORTB,ACCESS
Error [131] : Processor type is undefined.
00050 clrf PORTC,ACCESS
Error [131] : Processor type is undefined.
00051 clrf PORTE,ACCESS
Error [131] : Processor type is undefined.
00052 return
00053
00054 ;***********
00055
00056
gpasm-0.13.6 beta C:\Documents and Settings\Joe Rocci\test.asm4-30-2014 16:00:38 PAGE 3

[joe rocci]

What's @SYN?

[joe rocci]

Oh...GCB@SYN. I forgot I had it installed already.

Well, it seems to work there, so the problem's definitely something in my Prithvi environment. I guess it's bye-bye for Prithvi, though I do seem to keep returning to it after trying several other IDE's. I guess I'll just have to learn to love GCB@SYN.

Thanks for the help.

[Anobium]

:-)