QuantumPhysGuy
New member
Hello,
I am trying to communicate with my Teensy via the serial port and a c# application I am writing. Problem is, when I attempt to write data to the Teensy, my application just freezes and not sure why.
Here is my Teensy code:
Here is my C# app code:
Any idea why the application would just freeze? I have tried almost everything I can think of. I have the Teensy set as a Serial+Keyboard+Mouse+JoyStick.
I am trying to communicate with my Teensy via the serial port and a c# application I am writing. Problem is, when I attempt to write data to the Teensy, my application just freezes and not sure why.
Here is my Teensy code:
Code:
const int FUEL_GAUGE_PWM = 27;
boolean dataComplete = false; // whether the string is complete
int controlPacket[4];
int packetIndex = 0;
void setup()
{
pinMode(FUEL_GAUGE_PWM, OUTPUT);
Serial.begin(9600);
}
void loop()
{
if (dataComplete)
{
analogWrite(FUEL_GAUGE_PWM, controlPacket[0]);
dataComplete = false;
}
}
void serialEvent()
{
while (Serial.available())
{
controlPacket[packetIndex] = (byte)Serial.read();
Serial.write(controlPacket[packetIndex]);
packetIndex++;
if (packetIndex == 4)
{
packetIndex = 0;
dataComplete = true;
}
}
}
Here is my C# app code:
Code:
private SerialPort sp = new SerialPort("COM8", 9600, Parity.None, 8);
private Timer tmr = new Timer();
public Form1()
{
InitializeComponent();
tmr.Interval = 10;
tmr.Tick += tmr_Tick;
button1.Click += button1_Click;
sp.Open();
}
void tmr_Tick(object sender, EventArgs e)
{
try
{
byte[] data = new byte[4];
data[0] = Convert.ToByte(trackBar1.Value);
data[1] = 0;
data[2] = 0;
data[3] = 0;
sp.Write(data, 0, data.Length);
}
catch (Exception ex)
{
tmr.Stop();
MessageBox.Show("Error! " + ex.Message);
}
}
void button1_Click(object sender, EventArgs e)
{
if (tmr.Enabled)
{
tmr.Stop();
}
else
{
tmr.Start();
}
}
Any idea why the application would just freeze? I have tried almost everything I can think of. I have the Teensy set as a Serial+Keyboard+Mouse+JoyStick.