low.c

/*
 * @file low.c
 *
 * @author Andy Lindsay
 *
 * @version 0.85
 *
 * @copyright Copyright (C) Parallax, Inc. 2012.  See end of file for
 * terms of use (MIT License).
 *
 * @brief low function source, see simpletools.h for documentation.
 *
 * @detail Please submit bug reports, suggestions, and improvements to
 * this code to editor@parallax.com.
 */
 
#include "simpletools.h"                      // simpletools function prototypes
 
void low(int pin)                             // low function definition
{
  int mask = 1 << pin;                        // Set up mask
  OUTA &= ~mask;                              // Pin output state to low
  DIRA |= mask;                               // Pin direction to output
}