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idiolatrie |
/******************************************************************************
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* ETHERLAB - FPGA To C# To LABVIEW Bridge *
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******************************************************************************
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* *
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* Copyright (C)2012 Mathias Hörtnagl *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see . *
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******************************************************************************/
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using System;
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using System.Threading;
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namespace EtherLab.Examples
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{
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///
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/// Demonstartes sample usage of EtherLab. Controlls a sequence
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/// light with an EtherLab connection.
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///
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class SequenceLight
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{
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static void Main(string[] args)
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{
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/**
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* Create a new instance of EtherSocket with default
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* destination MAC. The first parameter identifies the
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* network device to select.
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*/
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EtherSocket es = new EtherSocket(0, "00:1f:16:01:95:a5");
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// Indicates, wich LED is on.
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byte run = 0x01;
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// The current states of the 4 switches.
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ushort switches;
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while (true)
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{
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// Update channel H (LED).
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es.update(EChannel.CHANNEL_H, run);
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// Send the updated LED data.
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es.send();
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// Read the switch states.
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switches = es.read(EChannel.CHANNEL_H);
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// If rightmost switch is on, rotate right, else left.
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run = set(switches, 0) ? ror(run, 1) : rol(run, 1);
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// Wait, to see the sequence light show happen.
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Thread.Sleep(500);
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}
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}
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///
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/// Checks, if bit is set.
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///
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/// The bit field.
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/// The bit to check.
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/// True, if bit is set.
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public static Boolean set(ushort val, int bit)
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{
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return (val & (1 << bit)) != 0;
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}
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///
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/// Bitwise rotate left.
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///
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/// The bit field.
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/// The number of bits to rotate.
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/// Left rotated bit field.
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public static byte rol(byte val, int sh)
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{
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return (byte)(val<> (8 - sh));
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}
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///
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/// Bitwise rotate right.
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///
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/// The bit field.
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/// The number of bits to rotate.
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/// Right rotated bit field.
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public static byte ror(byte val, int sh)
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{
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return (byte)(val >> sh | val << (8 - sh));
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}
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}
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}
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