Apparent 2k limit with 4k 16F88


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  1. #1
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    Default Apparent 2k limit with 4k 16F88

    Hi Folks,

    Season's greetings to all.

    I can't seem to compile without a huge list of errors (see attached) when exceeding the apparent
    2k boundary of a 16F88 (4k chip). I edited to use a 16F1847 with no difference.

    Can someone take a look at the error list and shed some light on what I may be doing wrong? I will send the code if it's needed.

    I wish you all a safe 2021.

    Regards,
    Bill
    Attached Files Attached Files

  2. #2
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    Default Re: Apparent 2k limit with 4k 16F88

    first thing i would try is in code and compile options make sure
    generate coff is not ticked
    Warning I'm not a teacher

  3. #3
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    Default Re: Apparent 2k limit with 4k 16F88

    Hi Richard,

    Thanks for your help - "Generate COFF" is not checked. The strange thing is the code compiles and runs as designed to the 2k limit, but when I add extra text (either via debug or on the LCD) or anything else that pushes the code over 2070 words, it lists all those errors.

    My setup hasn't changed so I loaded an old 3k size program I wrote using the F88 and it compiles and runs fine. There is nothing flash about the problem code apart from using DT's Ints and a modified Inc file to run his Elapsed Timer code to 100ths precision, as I said, works well up to 2k only. I edited code and tried with Darrel's standard "Elapsed_INT.bas" and exactly the same result, compiles okay if less than 2071 words. PBP 3.0.10.4 and MPASM v5.71

    Any suggestions?

    Cheers,
    Bill

  4. #4
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    Default Re: Apparent 2k limit with 4k 16F88

    i don't see anything in the errors that indicates a code size problem .
    i only have experienced those errors when using dt ints or similar with coff generation on or with duplicate includes

    perhaps post your code for a more detailed examination
    Warning I'm not a teacher

  5. #5
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    Default Re: Apparent 2k limit with 4k 16F88

    Okay, here it is, note as is compiles but uncommenting the debug at line 318 pushes it over and it throws the errors.

    See attached also...

    Code:
    
    '****************************************************************************************************
    '*  Name    : Bubble rate V4-2.pbp                                       #### NON Working Code ####     *                                      
    '*          :                                                                                       *
    '*          :                            	                2070 words is the limit                 *
    '*  Date    : 14/12/20                                                                              *
    '*  Device  : 16F88                                                                                 *
    '*  Version : 4-2  2053 words (PBP 3.0.10.4)                                                        *
    '*          : 											                                            *
    '****************************************************************************************************
    
    ' LCD     	PIC(F88)          OTHER		
    '
    ' DB0-3   	No connection
    ' DB4     	PortA.0 (pin 17)
    ' DB5     	PortA.1 (pin 18)
    ' DB6     	PortA.2 (pin 1)
    ' DB7     	PortA.3 (pin 2)
    ' RS      	PortA.4 (pin 3)     10K pullup to 5v due Open Drain.
    '           MCLR    (pin 4)     10k pullup to 5v.
    ' RW      	Ground  (pin 5)
    ' Vdd     	5 volts (pin 14)			
    ' Vss     	Ground  (pin 5)				
    ' Vo      	                    20K potentiometer wiper (or ground).
    ' 		    PortB.0 (pin6)      Open collector output of sense head, series 1k.		
    ' 		    PortB.1 (pin7)	    + button (10k pullup to 5v).
    '		    PortB.2 (pin 8)     - button (10k pullup to 5v).
    '      CCP1 PortB.3 (pin 9)     Serial in via 22k.
    '		    PortB.4 (pin 10)    Stepper coil 1 Or. 	Each coil 27R with common to Red via ULN2003 driver.	
    '		    PortB.5 (pin 11)	Stepper coil 2 Ye.
    '		    PortB.6 (pin 12)    Stepper coil 3 Pk.
    '  		    PortB.7 (pin 13)    Stepper coil 4 Bu.
    '           PortA.6 (pin 15)    Serial out via 1k.      
    ' E         PortA.7 (pin 16)    LCD.    
    
    '=========================================================================================================
    '        CONFIGURE DEVICE 
    '=========================================================================================================
    #CONFIG ; F88 only
    ;    __config _CONFIG1, _FOSC_INTOSCIO & _WDT_ON & _PWRTE_ON & _MCLRE_ON & _LVP_OFF & _CP_OFF
        __config _CONFIG1, _FOSC_INTOSCIO & _WDT_ON & _PWRTE_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF
    #ENDCONFIG
    
    @ ERRORLEVEL -306   ; turn off crossing page boundary message
    
    ' -----[ Initialization ]------------------------------------------------------------------------------------------------ 
        CMCON = 7         	    ' Comparators off, all digital.
        TRISA = %00000000       ' 
        TRISB = %00000111       ' Set I/O.
    
        ANSEL = %00000000       ' All digital.
    
        OSCCON = %01100010      ' 4Mhz (F88).
    '    OSCCON = %01110010      ' 8Mhz (F88).
    	Define 	OSC    4        ' Set Xtal Frequency
    
    ' Define LCD connections       Change these to match your LCD 
        DEFINE  LCD_DREG        PORTA	' LCD Data Port
        DEFINE  LCD_DBIT        0		' Starting Data Bit
        DEFINE  LCD_RSREG       PORTA	' Register Select Port
        DEFINE  LCD_RSBIT       4		' Register Select Bit
        DEFINE  LCD_EREG        PORTA	' Enable Port
        DEFINE  LCD_EBIT        7		' Enable Bit
        DEFINE  LCD_BITS		4		' Data Bus Size
        DEFINE  LCD_LINES		2		' Number of Lines on LCD
    
        DEFINE DEBUG_REG PORTA          ' Debug pin port
        DEFINE DEBUG_BIT 6              ' Debug pin bit
        DEFINE DEBUG_BAUD 9600          ' Debug baud rate 
        DEFINE DEBUG_MODE 1             ' Debug mode: 0 = True, 1 = Inverted 
        DEFINE DEBUGIN_REG PORTB        ' Debug pin port
        DEFINE DEBUGIN_BIT 3            ' Input pin.
        DEFINE DEBUGIN_MODE 1           ' Debug mode: 0 = True, 1 = Inverted 
    
    '=========================================================================================================
    '        PIN ASSIGNMENTS, SYSTEM CONSTANTS, TEMPORARY VARIABLES
    '=========================================================================================================
    ' Alias pins
    ButReady    var PortB.1 ' Take this pin low momentarily to Enable timing.  
    ButReset    var PortB.2 ' Take this pin low momentarily to RESET all.      
    StepA       var PORTB.4 ' Active high, input to ULN2003 driver.
    StepB       var PORTB.5 '     "
    StepC       var PORTB.6 '     "
    StepD       var PORTB.7 '     "
    
    ' Allocate variables
    strAddr	    VAR BYTE	    ' Address of data.
    char        var byte        ' Character sent to LCD or Serout.
    bbl         var BYTE        ' Bubbles count.
    Targetbpm   var word        ' Target Bubbles per Minute whole number.
    bpm         var word        ' Bubbles per Minute whole number.
    bpmi        var BYTE        ' Bubbles per Minute integer.
    bpmr        var BYTE        ' Bubbles per Minute remainder.
    Tally       var word        ' Total time between bubbles (2.22 secs @ 27bpm).
    Tally2      var byte        ' Counter for Av bpm.
    Avgbpmt     var word        ' AVerage of bpm whole total.
    Avgbpm      var word        ' AVerage of bpm whole.
    Avgbpmi     var word        ' AVerage of bpm integer.
    Avgbpmr     var byte        ' AVerage of bpm remainder.
    degs        var byte        ' Degrees of stepper shaft to turn.
    ReadyFlag   var bit         ' 
    RunFlag     var bit         '
    FinFlag     var bit         ' 
    JumpFlag    var bit         ' If set then 10 samples taken, jump out.
    
    'wsave   VAR BYTE    $70     SYSTEM      ' alternate save location for W 
    
    ' Stepper stuff
    CounterA    var word        ' General Counter.
    CounterB    var word        ' Counter for delays.
    StepDelay   var word        ' Inter-Step Delay (uS).
    StepReverse var bit         ' 0 = Drive Forward, 1=Drive Reverse.
    StepOut     var byte        ' A variable reflecting Stepper Channel Outputs.
    StepOnLine  var bit         ' 0 = Stepper Off-Line (de-energised), 1 = Stepper On-Line (energised).
    StepMode    var Byte        ' 0 = Single Drive A-B-C-D, 1=Two Phase Drive AB-BC-CD-DA, 2=Half-Step A-AB-B-BC-C-CD-D-DA.
    StepStatus  var byte        ' Step Status (a value between 0 and 7) used internally by the StepDrive routine.
    
        Include "MODEDEFS.BAS"      ' Include Shiftin/out modes  ### Don't know why this stops the compile!
        INCLUDE "DT_INTS-14.bas"    ' Needs to be assembled with MPASM **********
        INCLUDE "ReEnterPBP.bas"    ; Include if using PBP interrupts	
        INCLUDE "Elapsed_INT_Ticks.bas"   ; Elapsed Timer Routines *** edited for 1/100ths (Ticks).
    '    INCLUDE "Elapsed_INT.bas"   ; Elapsed Timer Routines.
    
    ASM
    INT_LIST  macro    ; IntSource,        Label,  Type, ResetFlag?
            INT_Handler    INT_INT,  _Bubble,   PBP,  yes
            INT_Handler   TMR1_INT,  _ClockCount,   PBP,  yes
        endm
        INT_CREATE            ; Creates the interrupt processor
    ENDASM
    
            pause 100           ' Let everything settle...
    'latA.6 = 1                  ' Prevent garbled serial - newer PICs.        
    PortA.6 = 1                  ' Prevent garbled serial.        
    debug "I'm Alive",13,10
    @   INT_ENABLE  TMR1_INT    ; Enable Timer 1 Interrupts.  
    
        	StepOnLine = 0		' Power-Off Stepper.
            Gosub StepDriveRAW  ' Act on it.
            StepStatus = 0		' Preset initial Start Point.
            StepMode = 0		' Standard Phase Mode 0.
            StepReverse = 0		' Standard Forward Movement.
            ReadyFlag = 0       ' Known state (not ready).
            RunFlag = 0         ' Known state (not run).
            FinFlag = 0         ' Not Finished.
            JumpFlag = 0        ' Zero (Av loop not completed yet).
            Targetbpm = 270     ' Whole number (actual 27.0 bpm) value of goal.
            bpm = 0             ' Zero the bubble whole count.
            bpmi = 0            ' Zero the bubble integer count.
            bpmr = 0            ' Zero the bubble remainder count.
            Avgbpmt = 0         ' Zero the Av. bpm total count.
            Avgbpm = 0          ' Zero the Av. bpm whole count.
            Avgbpmi = 0         ' Zero the Av. bpm integer count.
            Avgbpmr = 0         ' Zero the Av. bpm remainder count.
            Tally = 0           ' Zero the time.
            Tally2 = 0          ' Zero the Av. count.
            degs = 0            ' Zero the stepper degrees.
            GOTO Satu           ' Jump over the subroutines area.
    
    '=========================================================================================================
    ' Subroutines here in the first page...
    '=========================================================================================================
    Line2:
        LCDOut $FE,$C0,"  nf Go Rst"   ' LCD line 2.
        return
    
    Reset:
        GOSUB ResetTime             ' RESET timer.
        LCDOUT $FE,$80,"             "    ' Erase LCD posn 1-13 line 1.
        RunFlag = 0                 ' Allow restart - has not run yet.
        FinFlag = 0                 ' Not Finished.
        ButReady = 1                ' Enable the Ready button.
        bbl = 0                     ' Zero the bubble count.
        bpm = 0                     ' Zero the bpm whole count.
        bpmi = 0                    ' Zero the bubble integer count.
        bpmr = 0                    ' Zero the bubble remainder count.
        Tally = 0                   ' Zero the time between bubbles.
        return
    
    Timing: ' Displays the time like a clock, waits until SecondsChanged = 1, displays the time, then resets the flag.
        IF TicksChanged = 1 THEN  
         if Seconds <= 10 then          
         LCDOUT $FE,2,"           ",DEC1 Seconds,".",dec2 Ticks    ' Leading zero suppression. #############  " "
         else
         LCDOUT $FE,2,DEC2 Seconds,".",dec2 Ticks        ' Only Secs, Hundredths.
         endif
        TicksChanged = 0
        Endif
        return
    
    'Stepper Drive Subroutine
    ' From wherever the current step position happens to be this routine will drive Forwards or Backwards.  If the Stepper
    ' happens to be parked in an illegal step for the current Mode, then it will ensure that the Stepper increments a
    ' one-half step first... this ensures that if the stepper is in position AB, and needs to increment TWO steps forwards
    ' in Mode 0, it increments AB-B-C rather than AB-C-D.
    StepDrive:  ' This section determines what the NEW StepStatus should be, depending on the Mode and Direction of step.
    	If StepReverse = 0 then
    		If StepMode = 0 then
    		Lookup StepStatus,[2,2,4,4,6,6,0,0],StepStatus
    		endif
    	endif
    
    StepDriveRAW:   ' All Stepper Coils low (disabled).
    	Low StepA
    	Low StepB
    	Low StepC
    	Low StepD
    	If StepOnLine = 1 then ' Energise Coils to New Settings.
    ' This Lookup table represents [A,AB,B,BC,C,CD,D,DA]
    		Lookup StepStatus,[1,3,2,6,4,12,8,9],StepOut
    		StepA = StepOut.0
    		StepB = StepOut.1
    		StepC = StepOut.2
    		StepD = StepOut.3
    		endif
    	Return
    '=========================================================================================================
    ' Program area...
    '=========================================================================================================
    Satu: ' Operation when system first powered up. 
        GOSUB ResetTime             ' Reset Time to 0d-00:00:00.00 (located in "Elapsed_INT.bas")
        gosub Line2                 ' Fill in lcd line 2 "  nf Go Rst".
        goto Running                ' Jump.
    '    goto TestStepper            ' Jump to stepper test code.
    
    Running: 
        gosub Timing    ' Displays time like a clock, waits until ?Changed = 1, displays the time, then resets the flag.
    
       if RunFlag = 0 then              ' Has not run yet.
        if ButReady = 0 then            ' Only run if Enable pushed.
        pause 1000                      ' Ensure not mid-bubble.
    @   INT_ENABLE  INT_INT             ; Enable external (INT) interrupts.
        endif
       endif
    
    ' NOTE for some reason a For/Next loop causes weird problems so If/Endif used below marked ***.
     if FinFlag = 1 then                ' Has run.
        RunFlag = 0                     ' Enable.
    @   INT_ENABLE  INT_INT             ; Enable external (INT) interrupts.
        Tally = (Seconds*100)+Ticks     ' Total time between bubbles e.g. 222 = 2.22 secs.
        Tally2 = Tally2+1               ' Incr the Average counter.
         if Tally2 = 10 then            ' 10 samples. ***
         JumpFlag = 1                   ' Av loop completed, prepare to jump.
         Avgbpmt = 0                    ' Reset Av total count.
         Avgbpm = 0                     ' Reset Av whole count.
         Avgbpmi = 0                    ' Reset Av integer count.
         Avgbpmr = 0                    ' Reset Av remainder count.
         LCDOUT $FE,$C0,"  "            ' Clear count area.
         endif                          '
        bpm = (60000/Tally)             ' Whole number e.g. 60000/222 = 270. 
        bpmi = bpm/10                   ' Extract integer e.g. 60000/222 = 270/10 = 27
        bpmr = bpm//10                  ' Extract remainder.  0
        Avgbpmt = Avgbpmt+bpm           ' Total Av. whole.
        Avgbpm = Avgbpmt/tally2         ' Extract Av. whole.
        Avgbpmi = Avgbpm/10             ' Extract Av. integer.
        Avgbpmr = Avgbpm//10            ' Extract Av. remainder.
    @   INT_DISABLE  TMR1_INT           ; Disable Timer 1 Interrupts.
    debug # tally2,", Avgbpmt ",# Avgbpmt,", Avgbpm ",# Avgbpm,", Avgbpmi ",# Avgbpmi,10,13  
    @   INT_ENABLE  TMR1_INT            ; Enable Timer 1 Interrupts.  
        LCDOUT $FE,$88,dec2 bpmi,".",dec1 bpmr," bpm"   ' Feedback. Tilde (~) is 126 but this lcd shows -> instead.
      if tally2 < 10 then               ' Single digits, leading zero blanking.
      LCDOUT $FE,$C0," ",dec1 tally2',"      ",dec2 Avgbpmi,".",dec1 Avgbpmr," Avg"   ' Feedback.
      else  
      LCDOUT $FE,$C0,dec2 tally2',"     ",dec2 Avgbpmi,".",dec1 Avgbpmr," Avg"   ' Feedback.
      endif                             '
      LCDOUT $FE,$C2,"      ",dec2 Avgbpmi,".",dec1 Avgbpmr," Avg"   ' Feedback.
        pause 5000                      ' Enough time to read.
        if JumpFlag = 1 then UseStepper ' Av loop completed, jump.                       
        gosub reset                     ' Reset selected vars to run again.
        gosub Timing                    ' Refresh clock time.
        ButReady = 0                    ' Psuedo Enable pushed.
        pause 1000                      ' Ensure not mid-bubble.
    @   INT_ENABLE  INT_INT             ; Enable external (INT) interrupts.
     endif
    
        If ButReset = 0 then gosub reset' Run again.
        goto Running                    ' Loop until button is pressed.    
    
    UseStepper:    ' Run the valve adjuster.
    '	Speed and performance is dependent on the mass and inertia of the stepper and it's load.  The Delays may require
    '	consideration to make the Ramp-Up/down more applicable to the hardware and environment.
        StepOnLine = 1		' Bring Stepper On-Line (0 = all Stepper Coils Disabled).
        Gosub StepDriveRAW  ' All Stepper Coils low (disabled).
        LCDOut $FE,1        ' Clear and home display, Line 1.
    
         Tally2 = 0         ' Reset sample count for next cycle.
    '@   INT_DISABLE  TMR1_INT       ; Disable Timer 1 Interrupts.
    debug " at Stepper area",10,13  
    '@   INT_ENABLE  TMR1_INT        ; Enable Timer 1 Interrupts.  
    
    ' Compare measured Average to target and jump to correct any variation.
    Avgbpm = 280    ' ****** Test value ******
    select case Avgbpm      ' Whole number e.g. 270 (27.0 bpm).
        case Targetbpm      ' Target value.
            pause 60000     ' Wait about 1 minute.
            goto Running    ' Repeat monitoring.
        case is > Targetbpm ' Too fast, close valve.
            degs = 2        ' Move only 2°.
            goto CloseLoop  ' - jump to close valve (CCW, Forward) stepper code.
        case is < Targetbpm ' Too slow,
            degs = 2        ' Move only 2°.
            goto OpenLoop   ' - jump to open valve (CW, Reverse) stepper code.
    end select
    
    ' 'Forward' code sees motor shaft move CCW (looking at shaft, closes needle valve).
    CloseLoop:  ' Slow Ramp-Up Stepper, 1 step per 0.7° (360° = 512 steps).
        LCDOut $FE,2,"Closing ",dec1 degs,$DF ' Line 1.
    debug "Closing ",dec1 degs,$DF,10,13  
    	For CounterA = 0 to 2 step 1          ' 3 steps ~ 2° (2.1°).  
    		Gosub StepDrive
    		StepDelay = 65500-(CounterA*32)
    		PauseUS StepDelay
    	Next CounterA
    '    Gosub StepDriveRAW      ' All Stepper Coils low (disabled).
    
        pause 5000              ' Time to read
        LCDOut $FE,2,"Resting "   ' Line 1.
    'debug "    ",10,13      '
     for CounterB = 0 to 999    ' 1000 iterations.
        pause 6'00               ' Wait about 10 minutes to settle HS-23.
     next                       '
        goto Running            ' Repeat monitoring.
    		
    '' Run at constant Speed of 200 rpm (or so) for 3 Seconds
    '    LCDOut $FE,2,"Hold  200rpm"           ' Line 1.
    '	For CounterA = 0 to 2000
    '		Gosub StepDrive
    '		PauseUS 1500
    '	Next CounterA
    
    ' 'Reverse' code sees motor shaft move CW (looking at shaft, opens needle valve).
    OpenLoop:   ' Slow Ramp-Down Stepper
    	If StepReverse = 0 then               ' Change direction.
    	   StepReverse = 1                    '
    	else
    	   StepReverse = 0                    ' To be sure.
    	endif
        LCDOut $FE,2,"Opening ",dec1 degs,$DF ' Line 1.
    debug "Opening ",dec1 degs,$DF,10,13  
    	For CounterA = 2 to 0 step -1         ' 3 steps ~ 2° (2.1°).
    		Gosub StepDrive
    		StepDelay = 65500-(CounterA*32)
    		PauseUS StepDelay
    	Next CounterA
    '    Gosub StepDriveRAW          ' All Stepper Coils low (disabled).
    
        pause 5000                  ' Time to read
        LCDOut $FE,2,"Resting   "   ' Line 1.
    debug "Resting ",10,13          '
     for CounterB = 0 to 999        ' 1000 iterations.
        pause 6'00                   ' Wait about 10 minutes to settle HS-23.
     next                           '
        goto Running                ' Repeat monitoring.
    
    '---[INT - interrupt handler]---------------------------------------------------
    Bubble: ' Bubble detected to get here.
       if RunFlag = 0 then          ' Has not run yet.
         GOSUB StartTimer           ' Start the Elapsed Timer.
         RunFlag = 1                ' Has run.
         ButReady = 1               ' Single shot, disabled.
         bbl = bbl+1                ' Incr the count.
    @ INT_RETURN
       endif                        '
    
       if RunFlag = 1 then          ' Has run.
        GOSUB StopTimer             ' Stop the Elapsed Timer.
        FinFlag = 1                 ' Finished.
    @   INT_DISABLE  INT_INT        ; Disable external (INT) interrupts.
    @ INT_RETURN
       endif
    Attached Files Attached Files

  6. #6
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    Default Re: Apparent 2k limit with 4k 16F88

    compiles just fine, its only 2059 words by my system

    uncommenting the debug at line 318 pushes it over and it throws the errors.
    can you be more specific , i don't see anything there to un comment
    Attached Images Attached Images  
    Last edited by richard; - 31st December 2020 at 07:19.
    Warning I'm not a teacher

  7. #7
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    Default Re: Apparent 2k limit with 4k 16F88

    if you mean
    debug " ",10,13 '


    then it still complies and size goes to 2077
    Warning I'm not a teacher

  8. #8
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    Default Re: Apparent 2k limit with 4k 16F88

    Yes, the commented line above " for CounterB = 0 to 999 ' 1000 iterations."

    That's weird, I can't get past 2070 words.

    Feel free to add a bunch of anything to blow the code size out and see if it still compiles. I certainly can't - which begs the question what is different on your machine?

  9. #9
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    Default Re: Apparent 2k limit with 4k 16F88

    my dt-ints is in pristine condition
    Warning I'm not a teacher

  10. #10
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    Default Re: Apparent 2k limit with 4k 16F88

    Hi Richard,

    Thanks for the hint, yes changing my DT int's to v1.1 from 1.0 did the trick. Frustrating thing about it was I'd downloaded it a looonng time ago and didn't overwrite the old version at the time...

    It does show though the inadequacies of the error field - not a lot of help if you are not a guru.

    All the best for the New Year and do your best to stay away from New South Welshmen.

    Cheers,
    Bill

  11. #11
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    Default Re: Apparent 2k limit with 4k 16F88

    Thanks for the hint, yes changing my DT int's to v1.1 from 1.0 did the trick. Frustrating thing about it was I'd downloaded it a looonng time ago and didn't overwrite the old version at the time...

    hmmm
    mine is , as i say pristine ...
    '* Name : DT_INTS-14.bas *
    '* Author : Darrel Taylor *
    '* Version : 1.10 (8/13/2010) *
    '* Date : OCT 13, 2009

    All the best for the New Year and do your best to stay away from New South Welshmen.
    yes , the good sentiment is returned
    Warning I'm not a teacher

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