82 lines
2.3 KiB
C#
82 lines
2.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using MECF.Framework.Common.Communications;
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namespace MECF.Framework.RT.EquipmentLibrary.HardwareUnits.FFUs.Aire
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{
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public class FfuAAFMessage : BinaryMessage
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{
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public byte Preamble { get; set; }
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public byte Command { get; set; }
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public byte GroupAddress { get; set; }
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public byte Data1 { get; set; }
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public byte Data2 { get; set; }
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}
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public class FfuAAFConnection : SerialPortConnectionBase
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{
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private List<byte> _lstCacheBuffer = new List<byte>();
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public FfuAAFConnection(string portName) : base(portName,9600,8, System.IO.Ports.Parity.None, System.IO.Ports.StopBits.One,"\r",false)
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{
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}
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public override bool SendMessage(byte[] message)
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{
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_lstCacheBuffer.Clear();
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return base.SendMessage(message);
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}
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protected override MessageBase ParseResponse(byte[] rawMessage)
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{
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_lstCacheBuffer.AddRange(rawMessage);
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byte[] temps = _lstCacheBuffer.ToArray();
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FfuAAFMessage msg = new FfuAAFMessage();
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msg.IsResponse = false;
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msg.IsAck = false;
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msg.IsComplete = false;
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msg.RawMessage = _lstCacheBuffer.ToArray();
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if (temps.Length < 4) return msg;
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if (temps.LastOrDefault() != ModRTU_CRC(temps.Take(temps.Length - 1).ToArray()))
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return msg;
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msg.Preamble = temps[0];
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msg.Command = temps[1];
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msg.GroupAddress = temps[2];
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if (temps.Length > 4) msg.Data1 = temps[3];
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if (temps.Length > 5) msg.Data2 = temps[4];
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msg.IsResponse = true;
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msg.IsAck = true;
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msg.IsComplete = true;
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return msg;
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}
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private static byte ModRTU_CRC(byte[] buffer)
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{
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//ushort crc = 0xFFFF;
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// var buf = System.Text.Encoding.UTF8.GetBytes(String.Join(Environment.NewLine, buffer));
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var buf = buffer;
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var len = buffer.Length;
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byte temp = buffer[0];
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for (int i = 1; i < buffer.Length; i++)
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{
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temp = (byte)(temp ^ buffer[i]);
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}
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return (byte)~temp;
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}
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}
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}
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