/***************************** Communication Protocol ***************************************************
*
* |-------------------- Packet Length of File (for erase flash )----------------------|
* Position: | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
* |-----------------------------------------------------------------------------------|
* Value: | '*' | NData[2] | NData[1] | NData[0] | !NData[2] | !NData[1] | !NData[0] |
* |-----------------------------------------------------------------------------------|
* Position: | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
* |-----------------------------------------------------------------------------------|
* Value: | CRC32[3] | CRC32[2] | CRC32[1] | CRC32[0] | !CRC32[3] | !CRC32[2] | !CRC32[1] |
* |-----------------------------------------------------------------------------------|
* Position: | 14 |
* |-----------|
* Value: | !CRC32[0] |
* |-----------|
*
*
* |------------------ Packet Data (max data length = 2048 bytes) ---------------------|
* Position: | 0 | 1 | 2 | 3 | 4 | 5 | ... |
* |-----------------------------------------------------------------------------------|
* Value: | '!' | NData[1] | NData[0] | !NData[1] | !NData[0] | Data[0] | ... |
* |-----------------------------------------------------------------------------------|
* Position: | n+5 | n+6 | n+7 | n+8 | n+9 | n+10 | n+11 |
* |-----------------------------------------------------------------------------------|
* Value: | Data[n] | CRC32[3] | CRC32[2] | CRC32[1] | CRC32[0] | !CRC32[3] | !CRC32[2] |
* |-----------------------------------------------------------------------------------|
* Position: | n+12 | n+13 |
* |-----------------------|
* Value: | !CRC32[1] | !CRC32[0] |
* |-----------|-----------|
*/
private void btnFire_Click(object sender, EventArgs e)
{
if (serialPortManager.isConnected)
{
time = DateTime.Now;
txtstatus.Text += String.Format("\r\n{0}:- Start program, waiting ACK from Boot Loader", time.ToLongTimeString());
btnFire.Enabled = false;
btnbrown.Enabled = false;
countSendData = 0;
progressBar1.Value = 0;
SendPacketLengthThread = new Thread(SendPacketLength);
SendDataThread = new Thread(SendData);
/* Start Send Ping */
bootLoaderStatus = BootLoaderStatus.SendPing;
timerSendPing.Enabled = true;
}
}
public void SerialPortDataEventHandler_CallBack(object sender, byte[] data)
{
/* Receive ACK-PING from MCU */
if ((data[0] == ACK_VALUE) && (bootLoaderStatus == BootLoaderStatus.SendPing))
{
timerSendPing.Enabled = false;
bootLoaderStatus = BootLoaderStatus.SendLength;
time = DateTime.Now;
txtstatus.Invoke(new MethodInvoker(delegate()
{
txtstatus.Text += String.Format("\r\n{0}:- Receive ACK-PING From MCU", time.ToLongTimeString());
}));
Thread.Sleep(400);//Critical code
SendPacketLengthThread.Start();
}
/* Receive ACK-DATA-LENGTH from MCU */
else if ((data[0] == ACK_VALUE) && (bootLoaderStatus == BootLoaderStatus.SendLength))
{
bootLoaderStatus = BootLoaderStatus.SendData;
txtstatus.Invoke(new MethodInvoker(delegate()
{
time = DateTime.Now;
txtstatus.Text += String.Format("\r\n{0}:- Receive ACK-DATA-LENGTH From MCU", time.ToLongTimeString());
}));
SendDataThread.Start();
}
/* Receive NACK-DATA-LENGTH from MCU */
else if ((data[0] == NACK_VALUE) && (bootLoaderStatus == BootLoaderStatus.SendLength))
{
txtstatus.Invoke(new MethodInvoker(delegate()
{
time = DateTime.Now;
txtstatus.Text += String.Format("\r\n{0}:- Receive NOT-ACK-DATA-LENGTH From MCU", time.ToLongTimeString());
}));
if (!SendPacketLengthThread.IsAlive)
{
SendPacketLengthThread = new Thread(SendPacketLength);
SendPacketLengthThread.Start();
}
}
/* Receive ACK-DATA from MCU */
else if ((data[0] == ACK_VALUE) && (bootLoaderStatus == BootLoaderStatus.SendData))
{
time = DateTime.Now;
progressBar1.Invoke(new MethodInvoker(delegate()
{
progressBar1.Value = Convert.ToInt32(((float)countSendData / (float)lengthOfFile) * 100);
}));
if (countSendData == lengthOfFile)
{
bootLoaderStatus = BootLoaderStatus.Ending;
txtstatus.Invoke(new MethodInvoker(delegate()
{
txtstatus.Text += String.Format("\r\n{0}:- Program Success", time.ToLongTimeString());
}));
btnFire.Invoke(new MethodInvoker(delegate()
{
btnFire.Enabled = true;
}));
btnbrown.Invoke(new MethodInvoker(delegate()
{
btnbrown.Enabled = true;
}));
}
else
{
txtstatus.Invoke(new MethodInvoker(delegate()
{
txtstatus.Text += String.Format("\r\n{0}:- Receive ACK-DATA From MCU", time.ToLongTimeString());
}));
if (!SendDataThread.IsAlive)
{
SendDataThread = new Thread(SendData);
SendDataThread.Start();
}
}
}
}