void serial_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte c;
while (serial.BytesToRead > 0)
{
bool acceptByte = false;
c = (byte)serial.ReadByte();
switch (serialState)
{
case SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_SOF_RX_STATE;
currentMessage.Clear();
CheckSum = 0;
}
break;
case SerialReceiverState.USART_RECEIVER_SOF_RX_STATE:
if (SOF[1] == c)
{
serialState = SerialReceiverState.USART_RECEIVER_DATA_RX_STATE;
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
}
break;
case SerialReceiverState.USART_RECEIVER_DATA_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_MAGIC_RX_STATE;
}
else
{
acceptByte = true;
}
break;
case SerialReceiverState.USART_RECEIVER_MAGIC_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_DATA_RX_STATE;
acceptByte = true;
}
else if (EOF[1] == c)
{
serialState = SerialReceiverState.USART_RECEIVER_EOF_RX_STATE;
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
PrintMessage("TRAMA DEFECTUOSA");
}
break;
case SerialReceiverState.USART_RECEIVER_EOF_RX_STATE:
if (CheckSum == c)
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
InputMessage inputMessage = new InputMessage();
inputMessage.FromBinary(currentMessage.ToArray());
if (inputMessage.Content.Args != null)
OnOperationReceived(inputMessage);
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
PrintMessage("CHECKSUM INCORRECTO");
}
break;
default:
break;
}
CheckSum += c;
if (acceptByte)
{
currentMessage.Add(c);
}
}
}
void serial_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte c;
while (serial.BytesToRead > 0)
{
bool acceptByte = false;
c = (byte)serial.ReadByte();
switch (serialState)
{
case SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_SOF_RX_STATE;
currentMessage.Clear();
CheckSum = 0;
}
break;
case SerialReceiverState.USART_RECEIVER_SOF_RX_STATE:
if (SOF[1] == c)
{
serialState = SerialReceiverState.USART_RECEIVER_DATA_RX_STATE;
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
}
break;
case SerialReceiverState.USART_RECEIVER_DATA_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_MAGIC_RX_STATE;
}
else
{
acceptByte = true;
}
break;
case SerialReceiverState.USART_RECEIVER_MAGIC_RX_STATE:
if (APP_MAGIC_SYMBOL == c)
{
serialState = SerialReceiverState.USART_RECEIVER_DATA_RX_STATE;
acceptByte = true;
}
else if (EOF[1] == c)
{
serialState = SerialReceiverState.USART_RECEIVER_EOF_RX_STATE;
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
PrintMessage("TRAMA DEFECTUOSA");
}
break;
case SerialReceiverState.USART_RECEIVER_EOF_RX_STATE:
if (CheckSum == c)
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
InputMessage inputMessage = new InputMessage();
inputMessage.FromBinary(currentMessage.ToArray());
if (inputMessage.Content.Args != null)
{
OnOperationReceived(inputMessage);
}
}
else
{
serialState = SerialReceiverState.USART_RECEIVER_IDLE_RX_STATE;
PrintMessage("CHECKSUM INCORRECTO");
}
break;
default:
break;
}
CheckSum += c;
if (acceptByte)
{
currentMessage.Add(c);
}
}
}
