Subversion Repositories fpga-cf

/**

 *

 */

package edu.byu.cc.plieber.fpgaenet.examples;

import java.util.ArrayList;

import edu.byu.cc.plieber.fpgaenet.fcp.FCPException;

import edu.byu.cc.plieber.fpgaenet.fcp.FCPProtocol;

/**

 * @author Peter Lieber

 *

 */

public class RegisterInterface {

        private FCPProtocol protocol;

        private int channel;

        /**

         *

         */

        public RegisterInterface(FCPProtocol p) {

                protocol = p;

                channel = 1;

        }

        public RegisterInterface(FCPProtocol p, int channel) {

                protocol = p;

                this.channel = channel;

        }

        public void setRegister(int value) {

                ArrayList<Byte> bytes = new ArrayList<Byte>();

                bytes.add(new Byte((byte) (value & 0xff)));

                bytes.add(new Byte((byte) ((value >> 8) & 0xff)));

                bytes.add(new Byte((byte) ((value >> 16) & 0xff)));

                bytes.add(new Byte((byte) ((value >> 24) & 0xff)));

                try {

                        protocol.sendData(channel, bytes);

                } catch (FCPException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

        public int getRegister() {

                try {

                        protocol.sendDataRequest(channel, 4);

                } catch (FCPException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                byte[] bytes = protocol.getDataResponse();

                int res = (((int)bytes[3] & 0xff) << 24) | (((int)bytes[2] & 0xff) << 16) | (((int)bytes[1] & 0xff) << 8) |  (((int)bytes[0] & 0xff));

                return res;

        }

}