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Debug Terminal Problem — Parallax Forums

Debug Terminal Problem

Would somebody please explain how I can modify my program so that when any keys input from keyboard other than the umbers 0 through 9 are pressed the program will type "invalid entry" , "try again". Below is my program , Thanks.

' {$STAMP BS2}
' {$PBASIC 2.5}
'4 color leds

counter VAR Word

repeat VAR Nib
led VAR Nib
lines VAR Byte

blue CON 0
green CON 1
yellow CON 2
red CON 3

Main:
GOSUB Terminal
led=blue
DEBUG HOME,"blue led" 'pin 1 blue led
GOSUB timing

led=green 'pin 2 green led
DEBUG HOME,"green led"
GOSUB timing

led=yellow 'pin 3 yellow led
DEBUG HOME,"yellow led"
GOSUB timing

led=red 'pin 4 red led
DEBUG HOME,"red led"
GOSUB timing
GOTO main


timing:
FOR repeat = 1 TO 2
FOR counter = 0 TO 500 STEP 20
PULSOUT led, counter
PAUSE 10
NEXT
FOR counter = 500 TO 0 STEP 20
PULSOUT led, counter
PAUSE 10
NEXT
NEXT

Terminal:
DEBUG CLS
DEBUG "What color led's?", CR
DEBUG "1=Blue,2=Green,3=Yellow,4=Red", CR
DEBUGIN DEC1 lines


IF lines = 1 THEN
DEBUG CLS,CR, CR
GOSUB blueled
ENDIF
IF lines = 2 THEN
DEBUG CLS,CR, CR
GOSUB greenled
ENDIF
IF lines = 3 THEN
DEBUG CLS,CR, CR
GOSUB yellowled
ENDIF
IF lines = 4 THEN
DEBUG CLS,CR, CR
GOSUB redled
ELSE
ENDIF
IF (lines < 1) OR (lines > 4) THEN
GOSUB invalid
ENDIF
GOSUB invalid
PAUSE 2000
GOTO Terminal

blueled:
led=blue 'pin 1 blue led
DEBUG HOME,"blue led"
GOSUB timing
RETURN

greenled:
led=green 'pin 2 green led
DEBUG HOME,"green led"
GOSUB timing
RETURN

yellowled:
led=yellow 'pin 3 yellow led
DEBUG HOME,"yellow led"
GOSUB timing
RETURN

redled:
DEBUG CLS
led=red 'pin 4red led
DEBUG HOME,"red led"
GOSUB timing
RETURN

invalid:
DEBUG CLS, "Invalid entry!",CR
DEBUG "Try again"
RETURN

Comments

  • Rather than,
    DEBUGIN DEC1 lines
    try
    DEBUGIN lines
    IF lines < "1" OR lines > "4" THEN GOSUB invalid

    That is, treat the options as single ascii characters rather than as DECimal values.

    Note on program structure: take a look at the SELECT:CASE instructions for more compact branching through the options.


  • I added another subroutine called servo1 and modified your suggestion and the program will not run properly. Debug terminal loops asking for inputs and no matter what key is pressed displays " invalid entry", "try again".
  • Here is my code.
    ' {$STAMP BS2}
    ' {$PBASIC 2.5}
    ' fireflyled4

    counter VAR Word
    repeat VAR Nib
    led VAR Nib
    lines VAR Word

    blue CON 0
    green CON 1
    yellow CON 2
    red CON 3

    Main:
    GOSUB Terminal
    led=blue 'pin 0 blue led
    DEBUG HOME,"blue led"
    GOSUB timing

    led=green 'pin 1 green led
    DEBUG HOME,"green led"
    GOSUB timing

    led=yellow 'pin 2 yellow led
    DEBUG HOME,"yellow led"
    GOSUB timing

    led=red 'pin 3 red led
    DEBUG HOME,"red led"
    GOSUB timing
    GOTO main


    timing:
    FOR repeat = 1 TO 2
    FOR counter = 0 TO 500 STEP 20
    PULSOUT led, counter
    PAUSE 10
    NEXT
    FOR counter = 500 TO 0 STEP 20
    PULSOUT led, counter
    PAUSE 10
    NEXT
    NEXT

    Terminal:
    DEBUG CLS
    DEBUG HOME, "What program numbers? Blinking color led's twice",CR
    DEBUG "1=Blue,2=Green,3=Yellow,4=Red",CR
    DEBUG "5=servo control demo"
    'DEBUGIN DEC1 lines
    DEBUGIN lines

    IF lines < "1" OR lines > "5" THEN
    GOSUB invalid
    'ENDIF
    'ENDIF
    'GOSUB invalid
    'PAUSE 2000
    'GOTO Terminal
    IF lines = 1 THEN
    DEBUG CLS,CR, CR
    GOSUB blueled
    ENDIF
    IF lines = 2 THEN
    DEBUG CLS,CR, CR
    GOSUB greenled
    ENDIF
    IF lines = 3 THEN
    DEBUG CLS,CR, CR
    GOSUB yellowled
    ENDIF
    IF lines = 4 THEN
    DEBUG CLS,CR, CR
    GOSUB redled
    ELSE
    ENDIF
    IF lines = 5 THEN
    DEBUG CLS,CR, CR
    GOSUB servo1
    'ELSE
    ENDIF
    ENDIF
    GOTO terminal

    'IF (lines < 1) OR (lines > 4) THEN
    'IF lines < "1" OR lines > "4" THEN
    'GOSUB invalid
    'ENDIF
    'GOSUB invalid
    'PAUSE 2000
    'GOTO Terminal

    blueled:
    led=blue 'pin 0 blue led
    DEBUG HOME,"blue led"
    GOSUB timing
    RETURN

    greenled:
    led=green 'pin 1 green led
    DEBUG HOME,"green led"
    GOSUB timing
    RETURN

    yellowled:
    led=yellow 'pin 2 yellow led
    DEBUG HOME,"yellow led"
    GOSUB timing
    RETURN

    redled:
    DEBUG CLS
    led=red 'pin 3 red led
    DEBUG HOME,"red led"
    GOSUB timing
    RETURN

    invalid:
    DEBUG CLS, "Invalid entry!",CR
    DEBUG "Try again"
    RETURN


    servo1:
    DEBUG "Pulse width increment by 8", CR 'rotate pointer ccw to 180deg, the rotate to 0 deg.
    'FOR repeat = 1 TO 2
    FOR counter = 1500 TO 100 STEP 8
    HIGH red
    IF counter = 100 THEN HIGH blue
    LOW red
    PULSOUT 14, counter
    'ELSE HIGH blue
    ' ENDIF
    PAUSE 7
    DEBUG DEC5 counter, CR, CRSRUP
    ' ENDIF
    NEXT
    'ENDIF
    'NEXT
    RETURN
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    I'm going to guess that because you're not using code tags, the formatting is getting all messed up. With that and all the commented out lines it's really hard to follow the flow of your program. I would recommend using code tags or attaching the program as a file so it is easier to read.
  • tomcrawfordtomcrawford Posts: 1,129
    edited 2016-04-22 17:17
    I think you may have commented out one too many endif's right after you test for < "1" or > "4".

    Also, this is a good time to read about select/case.
      DEBUGIN lines
      SELECT lines
         CASE "1"
            DEBUG CLS,CR, CR
            GOSUB blueled
         CASE "2"
            DEBUG CLS, CR, CR
            GOSUB greenled
          and so-on for "3" and "4"
         CASE ELSE
             GOSUB invalid
        ENDSELECT
    
  • Thanks Tomcrawford. With your suggestion adding select/case the program works fine and I I plan to use it often.





    ' {$STAMP BS2}
    ' {$PBASIC 2.5}
    ' fireflyled4
    
    [b][/b]    counter VAR Word
        repeat  VAR Nib
        led     VAR Nib
        lines   VAR Word
    
        blue    CON 0
        green   CON 1
        yellow  CON 2
        red     CON 3
    
     Main:
      GOSUB Terminal
      led=blue														'pin 0 blue led
      DEBUG HOME,"blue led"
      GOSUB timing
    
      led=green                           'pin 1 green led
      DEBUG HOME,"green led"
      GOSUB timing
    
      led=yellow                          'pin 2 yellow led
      DEBUG HOME,"yellow led"
      GOSUB timing
    
      led=red                             'pin 3 red led
      DEBUG HOME,"red led"
      GOSUB timing
     GOTO main
    
    
     timing:
     FOR repeat =  1 TO 2
      FOR counter = 0 TO 500 STEP 20
          PULSOUT led, counter
         PAUSE 10
       NEXT
     FOR counter = 500 TO 0 STEP 20
          PULSOUT led, counter
         PAUSE 10
      NEXT
     NEXT
    
     Terminal:
      DEBUG CLS
      DEBUG HOME, "What program numbers?",CR
      DEBUG "1=Blue,2=Green,3=Yellow,4=Red",CR
      DEBUG "5=servo control demo"
        DEBUGIN lines
    
        SELECT lines
        CASE "1"
          DEBUG CLS,CR,CR
          GOSUB blueled
        CASE "2"
          DEBUG CLS,CR, CR
          GOSUB greenled
        CASE "3"
          DEBUG CLS,CR, CR
          GOSUB yellowled
        CASE "4"
          DEBUG CLS,CR, CR
          GOSUB redled
        CASE "5"
          DEBUG CLS,CR, CR
          GOSUB servo1
        CASE ELSE
          GOSUB invalid
        ENDSELECT
    
        IF lines < "1" OR lines > "5" THEN
        GOSUB invalid
        ENDIF
        GOTO terminal
    
    
    
     blueled:
      led=blue														'pin 0 blue led
      DEBUG HOME,"blue led"
      GOSUB timing
      RETURN
    
     greenled:
      led=green                           'pin 1 green led
      DEBUG HOME,"green led"
      GOSUB timing
      RETURN
    
     yellowled:
      led=yellow                          'pin 2 yellow led
      DEBUG HOME,"yellow led"
      GOSUB timing
      RETURN
    
     redled:
      DEBUG CLS
      led=red                             'pin 3 red led
      DEBUG HOME,"red led"
      GOSUB timing
      RETURN
    
     invalid:
      DEBUG CLS
      DEBUG  "Invalid entry!"
      DEBUG "Try again"
      PAUSE 1000
      RETURN
    
    
    servo1:
      DEBUG "Pulse width increment by 8", CR 'rotate pointer ccw to 180deg, the rotate to 0 deg.
      FOR counter = 1500 TO 100 STEP 8
      HIGH green
      IF counter = 100 THEN HIGH blue
       LOW red
      PULSOUT 14, counter
      PAUSE 7
      DEBUG DEC5 counter, CR, CRSRUP
      NEXT
      PAUSE 500
      LOW blue
      LOW green
      RETURN
    
    I think you may have commented out one too many endif's right after you test for < "1" or > "4".

    Also, this is a good time to read about select/case.
      DEBUGIN lines
      SELECT lines
         CASE "1"
            DEBUG CLS,CR, CR
            GOSUB blueled
         CASE "2"
            DEBUG CLS, CR, CR
            GOSUB greenled
          and so-on for "3" and "4"
         CASE ELSE
             GOSUB invalid
        ENDSELECT
    

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