Subversion Repositories fpga-cf

/**

 *

 */

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

import java.io.IOException;

import java.net.InetAddress;

import java.net.UnknownHostException;

import java.util.ArrayList;

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

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

import edu.byu.cc.plieber.util.StringUtil;

/**

 * @author Peter Lieber

 *

 */

public class SimpleOperations {

        /**

         * Sends or receives data to/from the FPGA over FCP through the given channel.

         * @param args

         * @throws UnknownHostException

         */

        public static void main(String[] args) throws UnknownHostException {

                if (args.length < 4) {

                        System.out

                                        .println("Usage: SimpleOperations <'send'|'read'> <ipaddress> <channel> <dataToSend(hex byte)|numBytesToRead> [more data...]");

                }

                FCPProtocol p = createConnection(InetAddress.getByName(args[2]));

                int channel = Integer.parseInt(args[3]);

                if (args[1] == "send") {

                        int numBytes = args.length - 4;

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

                        for (int i = 4; i < args.length; i++) {

                                data.add(new Byte((byte) (Integer.parseInt(args[i], 16))));

                        }

                        send(p, channel, data, numBytes);

                } else if (args[1] == "read") {

                        ArrayList<Byte> data = read(p, channel, Integer.parseInt(args[4]));

                        System.out.println(StringUtil.listToString(data));

                } else {

                        System.out

                                        .println("Usage: SimpleOperations <'send'|'read'> <ipaddress> <dataToSend(hex byte)|numBytesToRead> [more data...]");

                }

        }

        private static ArrayList<Byte> read(FCPProtocol p, int channel, int numBytes) {

                try {

                        p.sendDataRequest(channel, numBytes);

                } catch (FCPException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                byte[] data = p.getDataResponse();

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

                for (int i = 0; i < data.length; i++) {

                        ret.add(data[i]);

                }

                return ret;

        }

        private static void send(FCPProtocol p, int channel, ArrayList<Byte> data, int numBytes) {

                try {

                        p.sendData(channel, data, numBytes);

                } catch (FCPException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

        }

        static FCPProtocol createConnection(java.net.InetAddress address) {

                FCPProtocol p = null;

                try {

                        p = new FCPProtocol();

                        p.connect(address);

                } catch (IOException e) {

                        // TODO Auto-generated catch block

                        e.printStackTrace();

                }

                while (!p.isConnected())

                        ;

                return p;

        }

}