Java程序  |  61行  |  2.09 KB

/*
 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
 * Copyright (c) 2014 Intel Corporation.
 * Author: Petre Eftime <petre.p.eftime@intel.com>
 * Copyright (c) 2015 Intel Corporation.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import mraa.Gpio;
import mraa.mraa;

public class GpioMmapped {
  static {
    try {
      System.loadLibrary("mraajava");
    } catch (UnsatisfiedLinkError e) {
      System.err.println(
          "Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
          e);
      System.exit(1);
    }
  }
  public static void main(String argv[]) throws InterruptedException {
    //! [Interesting]
    String board = mraa.getPlatformName();
    String version = mraa.getVersion();
    System.out.println("hello mraa");
    System.out.println(String.format("Version: %s", version));
    
    Gpio gpio = new Gpio(1);
    
    gpio.useMmap(true);
    
    while (true) {
        gpio.write(1);
        Thread.sleep(50);
        gpio.write(0);
        Thread.sleep(50);
    }
    //! [Interesting]
  };
}