rc1: fixed write timeouts

This commit is contained in:
nikzori
2025-04-09 15:26:50 +03:00
parent 96b77d4181
commit 4137a84fa3
2 changed files with 194 additions and 210 deletions

View File

@@ -257,23 +257,14 @@ namespace Gidrolock_Modbus_Scanner
return false;
}
#endregion
/*
static byte[] buffer = new byte[255];
static int offset = 0;
static Thread timer = new Thread(new ThreadStart(() =>
{
Thread.Sleep(50);
offset = 0;
buffer = new byte[255];
port.DiscardInBuffer();
}));
*/
static Stopwatch stopwatch = new Stopwatch();
static byte[] buffer = new byte[255];
static int offset = 0;
static int count = 0;
static ModbusStatus responseStatus;
static bool bytecountFound = false;
static int expectedBytes = 0;
static void PortDataReceived(object sender, EventArgs e)
@@ -284,13 +275,12 @@ namespace Gidrolock_Modbus_Scanner
bytecountFound = false;
expectedBytes = 0;
Console.WriteLine("Port data received");
try
{
stopwatch.Restart();
while (stopwatch.ElapsedMilliseconds < port.ReadTimeout)
{
if (bytecountFound && offset >= expectedBytes + 5)
if (bytecountFound && offset >= expectedBytes)
break;
if (port.BytesToRead > 0)
{
@@ -298,13 +288,31 @@ namespace Gidrolock_Modbus_Scanner
count = port.BytesToRead;
port.Read(buffer, offset, count);
offset += count;
if (!bytecountFound && offset >= 2)
if (offset >= 1)
{
expectedBytes = buffer[2];
if (buffer[1] < 0x05)
responseStatus = ModbusStatus.ReadSuccess;
else if (buffer[1] < 0x10)
{
responseStatus = ModbusStatus.WriteSuccess;
expectedBytes = 8;
bytecountFound = true;
}
else
{
responseStatus = ModbusStatus.Error;
expectedBytes = 5;
bytecountFound = true;
}
}
if (responseStatus == ModbusStatus.ReadSuccess && !bytecountFound && offset >= 2)
{
expectedBytes = buffer[2] + 5;
Console.WriteLine("Found data byte count: " + expectedBytes);
bytecountFound = true;
}
if (bytecountFound && offset >= expectedBytes + 5) // reached end of message
if (bytecountFound && offset >= expectedBytes) // reached end of message
{
Console.WriteLine("Reached end of message");
break;
@@ -315,25 +323,18 @@ namespace Gidrolock_Modbus_Scanner
// Console.WriteLine("Buffer: " + ByteArrayToString(buffer, false));
// assume that the message ended
Console.WriteLine("Message reception ended");
byte[] message = new byte[expectedBytes + 5];
for (int i = 0; i < expectedBytes + 5; i++)
byte[] message = new byte[expectedBytes];
for (int i = 0; i < expectedBytes; i++)
message[i] = buffer[i];
Console.WriteLine("Incoming message: " + ByteArrayToString(message, false));
if (!CheckResponse(message))
Console.WriteLine("Bad CRC or not a modbus message!");
if (message[1] <= 0x04) // read functions
ResponseReceived.Invoke(null, new ModbusResponseEventArgs(message, ModbusStatus.ReadSuccess));
ResponseReceived.Invoke(null, new ModbusResponseEventArgs(message, responseStatus));
else
{
if (message[1] <= 0x10) // write functions
ResponseReceived.Invoke(null, new ModbusResponseEventArgs(message, ModbusStatus.WriteSuccess));
else // error codes
ResponseReceived.Invoke(null, new ModbusResponseEventArgs(message, ModbusStatus.Error));
}
}
catch (Exception err)
{