Newbie help. RGB Led on a PIC10F202

[brianmorris]

Error[113] c:\pbp\pbppic12.lib 423 : Symbol not previously defined (CMCON0). A have a whole bunch of these.

[Bruce]

The 10F202 doesn't have a CMCON0 register so leave that out.

See if this works;

@  __config _WDT_OFF & _MCLRE_OFF & _CP_OFF
 
  Red       var GPIO.0
  Green     var GPIO.1
  Blue      var GPIO.2
  SwitchPin var GPIO.3  ' Active low
 
  RD CON %11111110  ' red
  GR CON %11111101  ' green
  BL CON %11111011  ' blue
  YL CON GR & RD      ' green + red = yellow
  CY CON GR & BL      ' green + blue = cyan
  PR CON BL & RD      ' blue + red = purple
  WT CON GR & BL & RD   ' green + blue + red = white
  OF con %11111111  ' all LEDs off
 
  ButtonCount VAR BYTE
 
  OPTION_REG = %00000000  ' GPIO.2 for GP use
  TRISIO = %00001000  ' GP3: Input, other pin: Output 
  GPIO = %00000111    ' LEDs off
  ButtonCount = 0
 
MAIN:
  IF !SwitchPin THEN                         ' Switch down?
     WHILE !SwitchPin : wend                 ' - Spin 'till button is released
     PAUSE 50                                ' - arbitrary debouince delay 
     ButtonCount = ButtonCount + 1
 
     SELECT CASE ButtonCount
       CASE 1 
         GPIO = RD
       CASE 2 
         GPIO = GR
       CASE 3 
         GPIO = BL 
       CASE 4
         GPIO = YL 
       case 5
         GPIO = CY
       case 6
         GPIO = PR
       case 7
         GPIO = WT
       case IS > 7
         GPIO = OF
         ButtonCount = 0
     END SELECT
 
  ENDIF
  GOTO MAIN
  END

The PWM command returns the output pin to an input after it finishes so that might be causing some funkiness. Try just placing color values on the port and see if this helps.

[brianmorris]

Switch works. Just not following the colors you have in each of the case statements. In order of presses in goes: Red, Green,Blue, Yellow for a split second, White, Cyan, Red, No White then cycles over again as it should.

We are getting closer though and very much appreciate this. This is my first project with any of PIC MCUs as well as my first with PICBASIC Pro.

[Bruce]

My bad. Change the + to & in the color mix constants...;o)

YL CON GR & RD, etc,,