In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Professorwiz wrote:

High all, I'm writing one of my first larger programs for the SX, it's not huge but I'm getting this error 
 

Line 238, error 44, pass2: Address 295 is not within lower half of memory page

 

Here's the program.. Sorry for the poor programming syntex I am working on it.  Any help would be appriciated.  I think one of the first things to do is make a subroutine for the pause command.  Other than that?

 

Russ

 

' =========================================================================
'
'   File...... PhotoTimer 
'   Purpose... Help take time lapse photos
'   Author....  Russell Wizinsky 
'   E-mail....  [url=russw@professorwiz.com]russw@professorwiz.com[/url]
'   Started...  4/16/07 for the Basic stamp
' revision..  8/20/07 for the Parallax SX Chip
'   Updated...  8/26/07


' =========================================================================


' -------------------------------------------------------------------------
' Program Description
' -------------------------------------------------------------------------
' Program will close shutter switch at set timed intervals.  
' One button will adjust the timing, 
' timing will be shown as a number 0-9 on the 7 segment display
' When start button is depressed camera will start taking photos
' When start button is depressed again.  Camera will stop and
' 7 segment display will flash out count of how many pictures it took
' until the adjust button is pressed again.

' -------------------------------------------------------------------------
' Device Settings
' -------------------------------------------------------------------------

DEVICE          SX28, OSC4MHZ, TURBO, STACKX, OPTIONX
FREQ            4_000_000


' -------------------------------------------------------------------------
' IO Pins
' -------------------------------------------------------------------------
'RC Pins for Output for 7 Segment Display
'RB0 Pin for Pushbutton for start
'RB1 Change timing of shutter
'RB2 Output for Test LED
'RB3 Solid state Cmos switch

Segments  PIN RC  output '7 Segment display
StartButton  PIN RB.0 INPUT 'PushButton Switch
TimeButton  Pin RB.1 Input 'PushButton Switch
Shutter   Pin RB.2 output 'Output to Cmos switch
' -------------------------------------------------------------------------
' Constants
' -------------------------------------------------------------------------
ISPRESSED   CON 1 'FOR ACTIVE-HIGH INPUT
ISNOTPRESSED CON 0
ISOpen   Con 1 'Shutter is opened
IsClosed  Con 0 'Shutter is closed

' -------------------------------------------------------------------------
' Variables
' -------------------------------------------------------------------------

idx    VAR       BYTE ' Index for Data of 7 Segment display
counter      VAR                Word ' timing variable
time        VAR                Word ' variable for rc time
del1        VAR                Word ' Delay Variable
pics         VAR                Word ' Number of pictures taken

' =========================================================================
  PROGRAM Start
' =========================================================================


' -------------------------------------------------------------------------
'            PROGRAM CODE
' -------------------------------------------------------------------------
Start:

'gosub DisplayTiming
 Do 
  read dig_map + counter, segments
  If TimeButton = ispressed then
   do
   loop until TimeButton = isnotpressed
   Inc counter
   If counter = 10 then 
    counter = 0
   Endif
   Pause 250
  EndIf
 loop until  StartButton = ispressed
 Do
 loop until StartButton = isnotpressed 'Don't start until button is released
 gosub calctime       'Calculate time between pictures
 gosub takepics       'Trigger the shutter at calcuated time
 gosub dispcount       'Display how many pictures where taken

 

Pause 1000
goto start


 
' -------------------------------------------------------------------------
'            SUBROUTINES
' -------------------------------------------------------------------------
                             

calctime:                        'Caclulate time between frames selected by pushbutton

    IF counter = 0 THEN 
 del1 = 1      'Time interval 1 sec
    ENDIF
 IF counter = 1 THEN 
 del1 = 2      'Time interval 2 sec
    ENDIF
 IF counter = 2 THEN 
 del1 = 3      'Time interval 3 sec
 ENDIF    
 IF counter = 3 THEN 
 del1 = 5      'Time interval 5 sec
 ENDIF    
 IF counter = 4 THEN 
 del1 = 10     'Time interval 10 sec
    ENDIF
 IF counter = 5 THEN 
 del1 = 20     'Time interval 20 sec
 ENDIF
    IF counter = 6 THEN 
 del1 = 30     'Time interval 30 sec
 ENDIF
    IF counter = 7 THEN 
 del1 = 50     'Time interval 50 sec
 ENDIF
    IF counter = 8 THEN 
 del1 = 100    'Time interval 100 sec
 ENDIF
    IF counter = 9 THEN 
 del1 = 120    'Time interval 120 sec
 ENDIF
RETURN

TakePics:        'Trigger the shutter at calcuated time

Do

Shutter = ISOpen
pause 50
Shutter = ISClosed
pause del1


loop until  StartButton = ispressed 
RETURN

DispCount:        'Display how many pictures where taken

RETURN


' -------------------------------------------------------------------------

' end of form


' -------------------------------------------------------------------------
'data
' -------------------------------------------------------------------------

DIG_MAP:
  '  BAFG.CDE
 DATA  %11100111 '0
 DATA %10000100 '1
 DATA %11010011 '2
 DATA %11010110 '3
 DATA %10110100 '4
 DATA %01110110 '5
 DATA %01110111 '6
 DATA %11000100 '7
 DATA %11110111 '8
 DATA %11110110 '9

---------- End of Message ----------


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