{{ ************************************
   *    demo_repeat_blink_led_group   *
   *       2008 Michael St.Onge       *
   ************************************

   Goal: Make a group of LED's simultaneously blink in a continuous loop.

   Purpose: This will demonstrate the use of the "dira" to set pin to an output state, and then use "outa" to turn on the group of LED's.
}}


CON

  _clkmode     = xtal1 + pll16x           ' Feedback and PLL multiplier
  _xinfreq     = 5_000_000                ' External oscillator = 5 MHz

  pinLEDstart       = 0                   ' assign which pin the first led in the group is on
  pinLEDend         = 2                   ' assign which pin the last led in the group is on
                                          ' (you can have as many LED's in your group as your group as you want as long as you don't exceed the maximum current of 30 mA.)
  
PUB Blinker                               ' Main method
 

  dira[pinLEDstart..pinLEDend]~~          ' Set pin to output (~ sets I/O to input and ~~ sets I/O to output, all pins default to input state)

  repeat                                  ' Endless loop

    !outa[pinLEDstart..pinLEDend]         'toggles output of the group of pins low/high (if low, then high, or if high, then low)
    
    waitcnt(clkfreq / 4 + cnt)            ' Wait 1/4 second -> 2 Hz   (uses the clock frequency of 5 MHz)