Instant Interrupts - Revisited

**Acetronics2** · - 21st August 2009, 09:24

Hi, Darrel,

I Ported it to MCS ...

ERROR : MACRO BUFFER OVERFLOW ...

Which looks sililar to the error MPASM raised.

??????????

Alain

**Acetronics2** · - 21st August 2009, 09:30

HI,Darrel,

a special character compiler do not like ???

Alain

**Darrel Taylor** · - 21st August 2009, 09:39

Originally Posted by Acetronics

I Ported it to MCS ...

ERROR : MACRO BUFFER OVERFLOW ...

That error only happens when compiling with PM.
Switch to MPASM for an 18F452.

Normally it will warn you when compiling 18F programs with PM.exe. But I think the macro overflow causes too many errors before it gets to that warning, so you don't see it in MCS.
<br>

**Acetronics2** · - 21st August 2009, 09:51

Originally Posted by Darrel Taylor

That error only happens when compiling with PM.
Switch to MPASM for an 18F452.

Normally it will warn you when compiling 18F programs with PM.exe. But I think the macro overflow causes too many errors before it gets to that warning, so you don't see it in MCS.
<br>

Ooooops, sorry.

Compiled fine in MCS ...

Great mistery ... for sure !!!

Alain

**Acetronics2** · - 21st August 2009, 11:11

Hi,

Result is the same with " T-Elapsed_18" ... straight out of the Package ...

Executing: "C:\Program Files\Microchip\MPLAB IDE\PBP\PBPMPLAB.BAT" -ampasmwin -k# -p18F452 "T_Elapsed-18.bas"
Executing: "C:\Program Files\Microchip\MPLAB IDE\PBP\PBPW.EXE" -ampasmwin -k# -p18F452 "T_Elapsed-18.bas"
PICBASIC PRO(TM) Compiler 2.60, (c) 1998, 2009 microEngineering Labs, Inc.
All Rights Reserved.

ERROR: Unable to execute mpasmwin.Message[301] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PBP\18F452.INC 23 : MESSAGE: ( PENSEZ à INDIQUER la BONNE CONFIGURATION ... )
Message[301] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PBP\18F452.INC 24 : MESSAGE: ( PENSEZ à INDIQUER la BONNE CONFIGURATION ... )
Error[116] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PROJETS\T_ELAPSED-18.ASM 609 : Address label duplicated or different in second pass (Z00022)
Error[116] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PROJETS\T_ELAPSED-18.ASM 672 : Address label duplicated or different in second pass (Z00023)
Error[116] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PROJETS\T_ELAPSED-18.ASM 725 : Address label duplicated or different in second pass (Z00024)
Error[116] C:\PROGRAM FILES\MICROCHIP\MPLAB IDE\PROJETS\T_ELAPSED-18.ASM 756 : Address label duplicated or different in second pass (Z00025)
Halting build on first failure as requested.
BUILD FAILED: Fri Aug 21 12:08:46 2009

**Acetronics2** · - 21st August 2009, 12:31

Strange thing ...

DT 14 bits interrupts Examples Compile fine ( With MPLAB ), but NOT 16 bits interrupts Examples ...

Alain

**Darrel Taylor** · - 22nd August 2009, 02:04

No wonder I don't like MPLAB.

The problem seems to have something to do with the -k# command line option. (new option for pbp2.60)
If I use the same batch file that MPLAB uses ... PBPMPLAB.BAT
Then this command gives me the same errors you reported.

c:\PIC\PBP260\PBPMPLAB.BAT -ampasmwin -k# -p18F452 "Tracteur.bas"

If I remove the -k# option it compiles fine.

I haven't found a way to remove it from within MPLAB.
And I think if you did, you wouldn't be able to debug in MPLAB.

Added: In the PBP manual it only shows -k- and -k+. -k# doesn't even seem to be a valid option.
Not that it matters much, because it fails with either -k- or -k+ too.

**Darrel Taylor** · - 22nd August 2009, 03:25

I see exactly what's happening now.
This is one for meLabs to solve.

In an attempt to produce the COFF information for debugging with MPLAB, ... PBP with the -k option places Z????? Labels on every line of code ... including the "ASM" or @ lines.

If the program has any ASM macros in it (like DT_INTS), you can normally jump in and out of ASM anytime you need to within that macro.

But with it putting labels at the "ASM" statements, ... when those macros get used (more than once) it duplicates labels that were not in the original program.

For instance with this macro ...

Code:

ASM
MyMacro  macro
   ; asm statements here
  ENDASM
   ; PBP statements here
  ASM  ; This statement creates a label in the middle of a macro.
  endm
ENDASM

@ MyMacro  ; The first time it's used is OK
@ MyMacro  ; the second time or more duplicates that label

I'll send a report to support at melabs.com

**Acetronics2** · - 22nd August 2009, 09:30

Originally Posted by Darrel Taylor

If I remove the -k# option it compiles fine.

.

Hi darrel ...

YES ... but BUILD fails ... no HEX generated, halas.

Bouhouuuuu ...

Alain

**Michael Wakileh** · - 3rd October 2009, 22:53

I've been wondering what it would take...or if anyone has managed to change the Timereload (External Constant), to a variable that can be altered in the main program...
Actually, I would like to load this value from eeprom on startup, but I am at a loss for how to go about this short of learning asm...

;---Reload Timer1------ (T1 asm interrupt handler)
ASM
ReloadTMR1
MOVE?CT 0, T1CON, TMR1ON ; 1 stop timer
MOVLW LOW(TimerReload) ; 1 Add TimerReload to the
ADDWF TMR1L,F ; 1 value in Timer1
BTFSC STATUS,C ; 1/2
INCF TMR1H,F ; 1
MOVLW HIGH(TimerReload) ; 1
ADDWF TMR1H,F ; 1
MOVE?CT 1, T1CON, TMR1ON ; 1 start timer
INT_RETURN
ENDASM

**Darrel Taylor** · - 4th October 2009, 00:50

Originally Posted by Michael Wakileh

I've been wondering what it would take...or if anyone has managed to change the Timereload (External Constant), to a variable that can be altered in the main program...
Actually, I would like to load this value from eeprom on startup, but I am at a loss for how to go about this short of learning asm...

Code:

;---Reload Timer1------   (T1 asm interrupt handler)
ASM
ReloadTMR1
    MOVE?CT  0, T1CON, TMR1ON     ;  1     stop timer
    MOVLW    LOW(TimerReload)     ;  1     Add TimerReload to the 
    ADDWF    TMR1L,F              ;  1     value in Timer1
    BTFSC    STATUS,C             ;  1/2
    INCF     TMR1H,F              ;  1
    MOVLW    HIGH(TimerReload)    ;  1
    ADDWF    TMR1H,F              ;  1
    MOVE?CT  1, T1CON, TMR1ON     ;  1     start timer
  INT_RETURN
ENDASM

I'm sure there are a number of ways to do it, but a direct translation of that routine might look like this ...

Code:

TimerReload VAR WORD BANK0

ASM
ReloadTMR1
    MOVE?CT  0, T1CON, TMR1ON     ;  1     stop timer
    MOVF     _TimerReload,w       ;  1     Add TimerReload to the 
    ADDWF    TMR1L,F              ;  1     value in Timer1
    BTFSC    STATUS,C             ;  1/2
    INCF     TMR1H,F              ;  1
    MOVF     _TimerReload + 1,w   ;  1
    ADDWF    TMR1H,F              ;  1
    MOVE?CT  1, T1CON, TMR1ON     ;  1     start timer
  INT_RETURN
ENDASM

Then TimerReload is a PBP word variable.
You can calculate it or read it from EEPROM as desired.

**Michael Wakileh** · - 4th October 2009, 20:02

Thanks Darrel! works great!

I've been experimenting with the interrupt system lately and although its not relevant for my purposes, I noticed something I can't explain...
I'm guessing it has something to do with the port variables saved...

I have a pic12f683
Led1 GPIO.1 toggled by 1Hz Timer1 interrupt (...in my case via external crystal)
Led2 GPIO.2 toggled by IOC/RB interrupt.
The RB interrupt also starts or stops the timer...allowing for control of the blinking LED1. This part works however LED2 only turns off briefly when the button is pressed.

Things work normal if a flag bit is "toggled" and the Leds are controlled in the main program...

Code:

RBPortIntPBP:
'toggle gpio.2
if T1CON.0 = 0 then
TOGGLEFLAG = 1              'attempt doing this via main handler
else
TOGGLEFLAG = 0
endif
pause 300
@ INT_RETURN

Can anyone explain, and is there away to do this from within the handler?

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Oh ok!

IOC handler

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