Search DaniWeb - comport

comport 11 Years Ago by girish.k.shukla hi iam using fedora 16.0 v but iam fail to open comport when try it show unable to open comport why and how i can open Re: comport 11 Years Ago by girish.k.shukla how i can find no of comport in our system COMport C++ problem 16 Years Ago by PaÄo …;windows.h> #include <stdio.h> #include "ComPort.h" char _tmp_buffer[256]; const char* ByteToString(char c…, int nShowCmd) { AllocConsole(); printf("Program se zaganja.\n"); ComPort Vrata("COM5", 2400, 8, false, 1); char znak… Re: Comport data writing 13 Years Ago by dilansankalpa Thanxx Nick.. I tried "comport.Write(datafrmf1a4,0,datafrmf1a4.Length);" but couldn't get it done. But i didn't try "comport.Write(datafrmf1a4,0,datafrmf1a4.Length);" I'll try both and reply then.. thanx again.. COMport 0 or 1 17 Years Ago by mladen17 … reading a lot about all kinds of programs here for COMport but i need samothing less complicated so i lost interest… Comport data writing 13 Years Ago by dilansankalpa …[0] = 53; datafrmf1a4[0] = 13; string datafrm = Convert.ToString(datafrmf1a4); comport.Write(datafrm); } [/code] Re: Comport data writing 13 Years Ago by dilansankalpa …[0] = 13; 18. 19. string datafrm = Convert.ToString(datafrmf1a4); 20. comport.Write(datafrm); 21. 22. 23. } [/code] Re: Comport data writing 13 Years Ago by nick.crane At line 19 you use [iCODE]Convert.ToString(datafrmf1a4);[/iCODE] and change the data to Unicode, so the data sent to the port is no longer what you want. Remove line 19 and try using [iCODE]comport.Write(datafrmf1a4,0,datafrmf1a4.Length);[/iCODE] (writing bytes not string). Slowing down Comport Output 10 Years Ago by Krefie …boys and girls, I use at-commands through the comport. The problem is if I send "get …everything" to the comport the output is about 30 lines of text in… under a second. The c# comport listener is only able to capture about 2 of…these lines due to the fast output from the comport. How do I ensure that I get all… How to find COMPORT numbers in linux 11 Years Ago by nHulk i am using ubuntu 11.04, have connected an dongle to it,i am trying to find the comport no to which dongle is connected ,As in windows i get com23,com24 etc .how can i get it in linux ? Enable or disable the comport in device manager through vb.net program 9 Years Ago by swathi sajja It is possible to Enable or disable the comport in device manager Enable or disable the comport in device manager through vb.net win 7 9 Years Ago by swathi sajja I have code for Enable or disable the comport in device manager through vb.net program in windows xp . but that code is not working in windows 7. Is there any common function for both os. Deadlock thread when closing form 14 Years Ago by clefranc …COMPort.BaudRate = 9600 COMPort.Parity = IO.Ports.Parity.None COMPort.DataBits = 8 COMPort.StopBits = IO.Ports.StopBits.One COMPort.ReceivedBytesThreshold = 1 COMPort…Me.FormClosing If COMPort.IsOpen Then COMPort.Close() End If COMPort = Nothing '… Re: VB.NET 2008 serial port Issue 14 Years Ago by iamai … comPort.DataBits = 8 comPort.StopBits = StopBits.One comPort.BaudRate = CInt(cboSpeed.Text) comPort.Handshake = Handshake.None comPort.ReadTimeout = 1000 comPort.WriteTimeout = 1000 comPort.Open() Private Sub query_GGA() comPort… Re: VB.NET 2008 serial port Issue 14 Years Ago by iamai … SerialPort comPort.PortName = cboCom.Text comPort.Parity = Parity.None comPort.DataBits = 8 comPort.StopBits = StopBits.One comPort.BaudRate = CInt(cboSpeed.Text) comPort.Handshake = Handshake.None comPort.Open… VB.NET 2008 serial port Issue 14 Years Ago by iamai … SerialPort comPort.PortName = cboCom.Text comPort.Parity = Parity.None comPort.DataBits = 8 comPort.StopBits = StopBits.One comPort.BaudRate = CInt(cboSpeed.Text) comPort.Handshake = Handshake.None comPort.Open… How to check serial (com) port is available or not in j2me? 12 Years Ago by _neo_ … String getComPort() { if (comPort != null && comPort.trim().length() > 0) { return comPort; } String comPorts = System… { int idxStart = comPorts.toLowerCase().indexOf("com"); comPort = comPorts.substring(idxStart, idxStart + 4); } //midlet.… Interop Issue... 12 Years Ago by skatamatic … } catch { return Setup(sSplit[0], 9600); } //***************** } public bool Setup(string COMPort, int BAUDRate) { //***************** //Hardcode setup default serial info here return HasInitialized… listview 11 Years Ago by hrul … End Sub Public Sub UPdateTextBox() If comport.IsOpen Then Dim bytes As Integer = comport.BytesToRead Dim buffer(bytes) As Byte…Dim i As Integer '\\ to read data from read buffer comport.Read(buffer, 0, bytes) If buffer.Length > … Problem with BitConverter.ToUInt32 13 Years Ago by tacoman … byte[4]; switch (n_bytes) { case 1: comPort.Read(data, 0, n_bytes); retValue = BitConverter.ToUInt32… >> 8; break; case 4: comPort.Read(data, 0, n_bytes); retValue = BitConverter… FTDI/SerialPort speed issues (XP vs. W7) 12 Years Ago by Ratte … settings which work well on XP: [CODE] comPort.RtsEnable = true; comPort.DtrEnable = true; comPort.Handshake = Handshake.RequestToSend; comPort.BaudRate = 115200; [/CODE] This exact same… Thread Problem Error: constructors, destructors and class operators 10 Years Ago by fernandofranca …: THandle; RxCOMThread : TRxCOMThread; //===================== Abre porta serial ==================================== //=================================================================== OPEN PORT procedure OpenPort(ComPort:String;BaudRate,ByteSize,Parity,StopBits:integer); var cc:TCOMMCONFIG; SWide… form get stucked when closing the serial port 13 Years Ago by dilansankalpa … every time. private void btnClosePort_Click(object sender, EventArgs e) { comport.Close(); // comport is the object created in the class serialport } I think… the current processes in the program and then close the comport????? or any other solution???? How to connect to huwaie usb modem [sms application] 12 Years Ago by GAiXz … New AutoResetEvent(False) Public Function OpenPort(ByVal ComPort As String) As SerialPort Dim SerialPort As … IO.Ports.SerialPort Try If ComPort <> Nothing Then With SerialPort .PortName = ComPort .BaudRate = 9600 .Parity … Re: Thread Problem Error: constructors, destructors and class operators 10 Years Ago by fernandofranca … =( unit PortaSerial; {$mode objfpc}{$H+} interface uses Classes; procedure OpenPort(ComPort:String;BaudRate,ByteSize,Parity,StopBits:integer); procedure StartListening(); type { TMyThread… Re: Thread Problem Error: constructors, destructors and class operators 10 Years Ago by fernandofranca …; var Connected : boolean = false; hComPort: THandle; RxCOMThread : TRxCOMThread; procedure OpenPort(ComPort:String;BaudRate,ByteSize,Parity,StopBits:integer); procedure StartListening(); procedure SendString… visual forms application 15 Years Ago by Nemoticchigga … is it gives my a null reference exception. [CODE]String^ comPort = "COM" + this->RS232CommPortNum->Value; int baudRate…::ToInt32(this->cbBaudRate->Value); SerialPort^ com = gcnew SerialPort(comPort, baudRate); com->Open(); Rs232Handle->setRs232com(com);[/CODE] This… exception 15 Years Ago by Nemoticchigga … = Convert::ToInt32(this->cbBaudRate->Value); com = gcnew SerialPort(comPort, baudRate); try { com->Open(); } catch (...) { ::MessageBox::Show("Invalid… Array of createfile handles 14 Years Ago by lostangel556 … bytes written to the port // Open COM port(s) HANDLE comport=CreateFile("\\\.\\COM6", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL…(&OUTBUFFER[0], str); //write data to comm port WriteFile(comport, &OUTBUFFER, 7, &bytes_written, NULL); //paint Color on screen… Re: form get stucked when closing the serial port 13 Years Ago by nick.crane … be using some interlocking to prevent multiple threads accessing the comport device simultaneously. I generally do this by wrapping my serial…