*** Never mind, I figured it out! ***
Forgive me if what I write looks a little "off", I have been programming for over 12 hours straight.. Also this is my second post on the topic, but I misunderstood the meaning of COM in the other forum.. :P
Project: Windows Form App
Two webcams, one laser, four servos and a Pololu Maestro 6 channel USB device. One cam and the laser measures range, second webcam automatically tracks laserdot. Pololu software simulates two COM ports (used to send commands to the servos).
Problem:
"An exception of type 'System.UnauthorizedAccessException' occurred in System.dll but was not handled in user code" "Additional information: Ingen tilgang til porten COM3". ("Ingen tilgang til porten COM3" -translated: "Access denied to port COM3")
Without Debugging: The application runs, then freezes after some time, no error shown. (The time varies)
With Debugging: The application runs for a short time, then the above error pops up. (Time also varies)
Here is the code for the servoclass:
namespace LaserstyrtKanon{ class servoklasse { public void MiniSSC(string ComPort, int BaudRate, int ServoNummer, int ServoPos) //Mini-SSC protocol { const double MIN_POS = 0 , MAX_POS = 255; if (ServoPos < MIN_POS) { throw new ArgumentException("Servoposisjonen er mindre enn minimum tillatt!"); } else if (ServoPos > MAX_POS) { throw new ArgumentException("Servoposisjonen er større enn maksimum tillatt."); } SerialPort port = new SerialPort(ComPort, BaudRate, Parity.None, 8, StopBits.One); port.Handshake = Handshake.None; port.Open(); <----this is where the Debugger points the error at ---- string ServoPosHex = ServoPos.ToString("X"); byte PosisjonsByte = byte.Parse(ServoPosHex, System.Globalization.NumberStyles.HexNumber); string ServoNummerHex = ServoNummer.ToString("X"); byte ServoNummerByte = byte.Parse(ServoNummerHex, System.Globalization.NumberStyles.HexNumber); port.Write(new byte[] { 0xFF, ServoNummerByte, PosisjonsByte }, 0, 3); port.Close(); }//MiniSSC }//servoklasse}//namespace
Sam Hobbs has already given me a few tips, but I hope YOU can clarify this for me..I have searched many many forums without result.