code: /**
   * Copyright (c) 2013-2014, TU Braunschweig
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   *
   * Redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution.
   *
   * Neither the name of the University of California, Los Angeles nor the
   * names of its contributors may be used to endorse or promote products
   * derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package avrora.sim.platform.sensors;
  
  import avrora.sim.mcu.Microcontroller;
  import avrora.sim.mcu.SPI;
  import avrora.sim.mcu.SPIDevice;
  
  /**
   *
   * @author S. Willenborg
   */
  public class AT45DB implements SPIDevice {
  
      Microcontroller.Pin.Input CS = null;
  
      public void connectCS(Microcontroller.Pin.Input cs) {
          CS = cs;
      }
  
      @Override
      public SPI.Frame exchange(SPI.Frame frame) {
          if (CS != null && CS.read()) {
              return SPI.newFrame((byte) 0x00);
          }
          System.out.printf("flash %02x\n", 0xff & frame.data);
          return SPI.newFrame((byte) 0x1f);
      }
  
      @Override
      public void connect(SPIDevice d) {
          throw new UnsupportedOperationException("Not supported.");
      }
  
  }
  