/* Initialize these variables at the top of the user_routines.c file */

unsigned char toggled = 0;
unsigned char previous_toggle = 0;
--------------------------------------------------------------------------------
/* Place this function in user_routines.c */

/*******************************************************************************
* FUNCTION NAME: triggerToggle
* PURPOSE:       Tests if a button has just been pressed. This way, if a button
*                is held down for more than one program loop, then the program
*                won't think that it has just been pressed again. This should
*                only be used if a button is used as a toggle switch. i.e. If
*                holding the trigger button is supposed to raise an arm using
*                motors, this would not work because the button cannot be
*                continuously pressed.
*
* CALLED FROM:   this file
* ARGUMENTS:     void
* RETURNS:       none
*******************************************************************************/

void triggerToggle()
{
  if (p1_sw_trig == 0 & previous_toggle == 0) /* Tests if the trigger button on
  {                                              Port 1 has just been pressed */
    toggled = 1;                              /* Button has been pressed */
  }
  else
  {
    toggled = 0;                              /* Button has not been pressed */
  }

  previous_toggle = p1_sw_trig;               /* Sets previous_toggle value */
}
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/* Place this code in the Default_Routine() of user_routines.c */

  triggerToggle();                            /* Runs triggerToggle function */

  if (toggled)                                /* Button was pressed */
  {
    /* Code if button is pressed */
  }
  else                                        /* Button not pressed */
  {
    /* Code if button is not pressed */
  }