private void timerWrite_Tick(object sender, EventArgs e)
{
byte[] dataBytes = EMCardEncoder.ReadBytes(maskedTextBoxWrite.Text);
if (dataBytes == null)
{
throw new ArgumentNullException("data");
}
if (dataBytes.Length == 0)
{
throw new ArgumentException("Data must be provided", "data");
}
if (dataBytes.Length != 5)
{
throw new ArgumentException("Provided data must be 5 bytes", "data");
}
// Check if there is a message pending
byte[] ack = emCardEncoder.ReadMessage();
if (ByteArrayCompare(ack, dataBytes))
{
maskedTextBoxRead.Text = (EMCardEncoder.FormatBytes(ack));
timerRead.Enabled = false;
}
else
{
emCardEncoder.SendWrite(dataBytes, writeProtect);
Thread.Sleep(250);
ack = emCardEncoder.ReadMessage();
emCardEncoder.SendRead();
Thread.Sleep(50);
ack = emCardEncoder.ReadMessage();
}
}
public static void Write(string port, string data, bool wait, bool writeProtect)
{
byte[] dataBytes = EMCardEncoder.ReadBytes(data);
if (dataBytes == null)
{
throw new ArgumentNullException("data");
}
if (dataBytes.Length == 0)
{
throw new ArgumentException("Data must be provided", "data");
}
if (dataBytes.Length != 5)
{
throw new ArgumentException("Provided data must be 5 bytes", "data");
}
using (var emCardEncoder = new EMCardEncoder())
{
emCardEncoder.Open(port);
byte[] ack = null;
do
{
emCardEncoder.SendWrite(dataBytes, writeProtect);
Thread.Sleep(250);
ack = emCardEncoder.ReadMessage();
Thread.Sleep(50);
emCardEncoder.SendRead();
Thread.Sleep(50);
ack = emCardEncoder.ReadMessage();
}while ((!ByteArrayCompare(ack, dataBytes)) && wait);
if ((ack != null) && (ack.Length > 0))
{
System.Console.WriteLine(EMCardEncoder.FormatBytes(ack));
}
else if ((ack != null) && (ack.Length == 0))
{
System.Console.WriteLine("ACK");
}
}
}
private void buttonWrite_Click(object sender, EventArgs e)
{
byte[] dataBytes = EMCardEncoder.ReadBytes(maskedTextBoxWrite.Text);
if (dataBytes == null)
{
throw new ArgumentNullException("data");
}
if (dataBytes.Length == 0)
{
throw new ArgumentException("Data must be provided", "data");
}
if (dataBytes.Length != 5)
{
throw new ArgumentException("Provided data must be 5 bytes", "data");
}
if (emCardEncoder != null)
{
byte[] ack = null;
do
{
emCardEncoder.SendWrite(dataBytes, writeProtect);
Thread.Sleep(250);
ack = emCardEncoder.ReadMessage();
emCardEncoder.SendRead();
Thread.Sleep(50);
ack = emCardEncoder.ReadMessage();
}while ((!ByteArrayCompare(ack, dataBytes)) && wait);
if ((ack != null) && (ack.Length > 0))
{
maskedTextBoxRead.Text = (EMCardEncoder.FormatBytes(ack));
}
}
}
