// Start is called before the first frame update
void Start()
{
serialport = this.gameObject.GetComponent <Virtual_SerialPort>();
Start_Decodage_Task();
}
private void Start()
{
serialport = this.gameObject.GetComponent <Virtual_SerialPort>();
}
/* Reception des octets reçus et transformation en une trame brute */
public static Communication.Communication_Message ReadTrame(Virtual_SerialPort _SerialPort)
{
Communication.Communication_Message received_message = new Communication.Communication_Message();
byte API_start = 0, API_LENGTH_HIGH = 0, API_LENGTH_LOW = 0, API_DUMMY, API_FRAME_TYPE = 0;
short API_LENGTH = 0;
short crc = 0;
byte index = 0, rx_crc = 0;
//reception de l'heure de la trame
received_message.Heure = DateTime.Now;
//Reception En-tête API
byte boucle = 0;
while (API_start != 0x7E)
{
_SerialPort.ReadRemoveInputByte(out API_start);
boucle++;
if (boucle > 5)
{
Debug.Log("API_start != 0x7E");
return(null);
}
}
//Le start byte est recu, on demarre la lecture de la trame
_SerialPort.ReadRemoveInputByte(out API_LENGTH_HIGH);
_SerialPort.ReadRemoveInputByte(out API_LENGTH_LOW);
API_LENGTH = API_LENGTH_HIGH;
API_LENGTH <<= 8;
API_LENGTH += API_LENGTH_LOW;
if (API_LENGTH > Communication.COMMUNICATION_TRAME_MAX_DATA + 11)
{
Debug.Log("API_LENGTH > Communication.COMMUNICATION_TRAME_MAX_DATA + 11");
return(null);
}
//Packet Type
_SerialPort.ReadRemoveInputByte(out API_FRAME_TYPE);
crc += API_FRAME_TYPE;
if (API_FRAME_TYPE == 0x89)
{
//Tx status
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
if (API_DUMMY == 00)
{
//Mess tx succes
//RxXbeeAck = OK;
}
//API CRC
_SerialPort.ReadRemoveInputByte(out rx_crc);
return(null);
}
boucle = 0;
while (_SerialPort.Number_Byte_To_Read() < API_LENGTH - 1)
{
boucle++;
if (boucle > 50)
{
Debug.Log($"_SerialPort.InputBuffer.Count < API_LENGTH - 1; boucle {_SerialPort.Number_Byte_To_Read()}/{API_LENGTH + 1}");
return(null);
}
Task.Delay(1);
}
//Tx Address
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
//RSSI
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
//Option
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
crc += API_DUMMY;
//Reception datas
//Instruction
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
received_message.Trame.Instruction = (Communication.Com_Instruction)(API_DUMMY);
crc += (byte)received_message.Trame.Instruction;
//Slave Address
_SerialPort.ReadRemoveInputByte(out API_DUMMY);
received_message.Trame.Slave_Adresse = (Communication.Slave_Adresses)(API_DUMMY);
crc += (byte)received_message.Trame.Slave_Adresse;
//Trame length
received_message.Trame.Length = (byte)(API_LENGTH - 7);
if (received_message.Trame.Length > Communication.COMMUNICATION_TRAME_MAX_DATA)
{
Debug.Log("received_message.Trame.Length > Communication.COMMUNICATION_TRAME_MAX_DATA");
return(null);
}
boucle = 0;
while (_SerialPort.Number_Byte_To_Read() < received_message.Trame.Length + 1)
{
boucle++;
if (boucle > 50)
{
Debug.Log("SerialPort.InputBuffer.Count < received_message.Trame.Length + 1; boucle");
return(null);
}
Task.Delay(1);
}
//Reception des data
for (index = 0; index < received_message.Trame.Length; index++)
{
_SerialPort.ReadRemoveInputByte(out received_message.Trame.Data[index]);
crc += (byte)(received_message.Trame.Data[index]);
}
//API CRC
_SerialPort.ReadRemoveInputByte(out rx_crc);
//Contrôle CRC
crc &= 0xFF;
crc = (byte)(0xFF - crc);
//Vérifie le CRC
if (crc == rx_crc)
{
return(received_message);
}
else
{
if (index == 0)
{
Debug.Log($"Error Comm CRC: {crc}/RX crc: {rx_crc}; previous: {(byte)received_message.Trame.Slave_Adresse}, instruction: {received_message.Trame.Instruction}");
}
else
{
Debug.Log($"Error Comm CRC: {crc}/RX crc: {rx_crc}; previous: {received_message.Trame.Data[index - 1]}, instruction: {received_message.Trame.Instruction}");
}
return(null);
}
}
