84 lines
2.7 KiB
C#
84 lines
2.7 KiB
C#
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using Gidrolock_Modbus_Scanner;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Ports;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Gidrolock_Modbus_Configurator
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{
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public class Update
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{
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bool isAwaitingResponse = false;
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ModbusResponseEventArgs latestMessage;
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SerialPort port = Modbus.port;
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public void UpdateFirmware(Stream fileStream)
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{
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Modbus.ResponseReceived += (sndr, msg) => { isAwaitingResponse = false; latestMessage = msg; };
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int offset = 0;
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byte[] buffer;
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byte[] preCRC;
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byte[] message;
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byte[] CRC = new byte[2];
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long bytesLeft = fileStream.Length;
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while (bytesLeft > 0)
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{
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int count = bytesLeft > 64 ? 64 : (int)bytesLeft;
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buffer = new byte[count];
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fileStream.Read(buffer, offset, count);
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preCRC = new byte[7 + buffer.Length];
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preCRC[0] = 0x1E; // Modbus ID
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preCRC[1] = 0x10; // Function code
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preCRC[2] = 0xFF; // Address 01
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preCRC[3] = 0xFF; // Address 02
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preCRC[4] = 0x00; // Cnt01
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preCRC[5] = 0x21; // Cnt02
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preCRC[6] = 0x42; // byte count
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for (int i = 0; i < count; i++)
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{
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preCRC[i+7] = buffer[i];
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}
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Modbus.GetCRC(preCRC, ref CRC);
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message = new byte[preCRC.Length + 2];
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for (int i = 0; i < preCRC.Length; i++)
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{
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message[i] = preCRC[i];
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}
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message[message.Length - 2] = CRC[0];
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message[message.Length - 1] = CRC[1];
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isAwaitingResponse = true;
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port.Write(message, 0, message.Length);
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var delay = Task.Delay(2000).ContinueWith(_ =>
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{
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if (isAwaitingResponse)
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{
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MessageBox.Show("Превышено время ожидания ответа от устройства.");
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isAwaitingResponse = false;
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}
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});
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while (isAwaitingResponse) { continue; }
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if (latestMessage != null && latestMessage.Status != ModbusStatus.Error)
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{
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bytesLeft -= count;
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offset += count;
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}
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}
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}
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}
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}
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