01 Jan 2000
Home  »    »   Opening A Serial Port

Opening A Serial Port

Posted in HomeBy adminOn 18/09/17

Communicating With Serial Port In CThis article will demonstrate how to write and receive data from a device connected to a serial port in C and. NET. We will be writing the received data to a Text. Box on a form, so this will also deal with threading. In the past, to communicate with a Serial Port using. Net 1. 1, you had to either use the Windows API, or use a third party control. With. Net 2. 0, Microsoft added this support with the inclusion of the Serial. Port class as part of the System. This package provides the Foxconn SerialParallel port PCIE AddInCard Driver and is supported on the Precision, Vostro Desktop and OptiPlex models that are running. User Manual ADAM4572, EKI1221,EKI1222, EKI1224, EKI1221D, EKI1222D 124port Modbus Gateway. Most of the problem is troubleshoot, hope this thing could help anyone 1. Honda Motorcycle Serial Numbers By Year'>Honda Motorcycle Serial Numbers By Year. F devttyACM ignbrk brkint imaxbel opost. ECU Flasher V1260 USB driver installation Do you have DATA READING, start data readingOpeni ng port impossible problem with ECU Flasher V1260Opening A Serial PortConnections and operating system symbolic names. A serial port is a communication physical interface through which information transfers in or out one bit at a time. UPort 1110 Series 1port RS232 USB to serial converters are the perfect accessory for laptop computers that dont have a serial port as UPort 1110 converts from USB. This tutorial covers how to create a serial port connection using HyperTerminal terminal emulation software for Windows. The ONLY way this will work is via a Console Cable and a Serial Port unless Multiple Context Mode has been enabled. There is no other way to get inside the. Im developing a project that has a number of hardware sensors connecting to the deployment machine through RS232 serial ports. But. Im developing on a machine. Troubleshooting. See ModemHOWTO for troubleshooting related to modems or getty for modems. For a TextTerminal much of the info here will be of value as well as. IO. Ports namespace. Implementation of the Serial. Port class is very straight forward. To create an instance of the Serial. Port class, you simply pass the Serial. Port options to the constructor of the class                         Serial. Port serial. Port  new Serial. PortCOM1, 1. 92. Opening A Serial PortOpening A Serial PortParity. None, 8, Stop. Bits. One      serial. Port. Handshake  Handshake. None   To receive data, we will need to create an Event. Handler for the Serial. Data. Received. Event. Handler       serial. Port. Data. Received  new Serial. Data. Received. Event. HandlerspData. Received  You can also set other options, such as the Read. Timeout and Write. Timeout,   serial. Port. Write. Timeout  5. Once you are ready to use the Serial Port, you will need to open it Now we are ready to receive data. However, to write this data to the Text. Box on a form, we need to create a delegate. Vnv Nation Logo Patch. Net does not allow cross thread action, so we need to use a delegate. The delegate is used to write to the UI thread from a non UI thread. Set. Text. Delegstring text  We will now create the spData. Received method that will be executed when data is received through the serial port. Data. Receivedobject sender, Serial. Data. Received. Event. Args e        Thread. Sleep5. 00      string data  serial. Port. Read. Line                  this. Begin. Invokenew Set. Text. DelegsiData. Received, new object  data     Now we create our siData. Received method, private void siData. Receivedstring data  text. Box. 1. Text  data. Trim   We can now receive data from a serial port device and display it on a form. Some devices will send data without being prompted. However, some devices need to be send certain commands, and it will reply with the data that the command calls for. For these devices, you will write data to the serial port, and use the previous code to get the data that will be sent back. In my example, I will be communicating with a scale. For this particular scale, sending the command SIrn will force it to return the weight of whatever is on the scale. This command is specific for this scale. You will need to read the documentation of your serial device to find commands that it will receive. To write to the serial port, I have created a Start button on the form. I have added code to its ClickEvent private void btn. StartClickobject sender, Event. Args e              try                ifserial. Port. Is. Open          serial. Port. Open          serial. Port. WriteSIrn            catch Exception ex                Message. Box. ShowError openingwriting to serial port     ex. Message, Error          And that is all you need to do. I have attached the Visual Studio 2. HW VSP Virtual Serial PortIndex Software. HW VSP is a software driver that adds a virtual serial port e. COM5 to the operating system and redirects the data from this port via a TCPIP network to another hardware interface, which is specified by its IP address and port number. HW VSP3 support even NT Services and 6. Windows 8, 1. 0 and Windows Server 2. Previous version of HW VSP is here HW Virtual Serial Port. Main Features. Free, unrestricted Virtual Serial Port driver for any TCPIP devices. Compatible with Windows 2. XP, Windows 8, Windows 1. Windows Server 2. Runs as a standalone application, or as a NT service suitable for servers HW VSP multiport can create up to 2. PC. Compatible devices. Option to start at Windows startup and minimize to System Tray. Single port free and multi port commercial version. Supports RFC 2. 21. TCP using NVTVSP driver typically operates as a TCP client however, it can also be used as a TCP server useful for GPRS applicationsConfiguration stored in an INI file. Configuration protected with a password. Supports UAC User Account ControlThis software is FREEWARE, as long as you comply with the license terms and conditions. Download Compatible devices. New in HW VSP3. Applications. Using devices connected via RS 2. SW, no need to change existing utilities. Remote PBX management PBX billing accounting. Connecting payment terminals. Wireless remote serial port through Wi. Fi. UPS supervision over SNMP or with proprietary SWConnecting a barcode reader to existing SWConnecting serial printers and labelers. Remote control of industrial assembly lines, visualization Description of HW VSP3. HW Virtual Serial Driver is intended primarily for devices produced by HW group, although it can be used for free as a universal driver that creates a virtual remote serial port, which redirects data to a predefined TCPIP address and port. In special applications e. GPRS devices, the PC with the HW VSP driver can be set to operate in TCP Server mode, enabling the remote device to initialize the connection by sending any data to the remote port. Upon receiving RS 2. PC and passes the data to the virtual COM port. Therefore, the scenario very closely resembles behavior of a real serial port. When using HW VSP together with recommended devices produced by HW group, it is possible to change connection speed, parity, and other communication parameters as well as to control any digital outputs and inputs remotely on the fly via the RFC 2. Running as a NT service in client server mode. Ability to run as a service has been the main reason for developing the new version. Running HW VSP as a standalone application requires starting it under a logged in user and therefore prevents autonomous operation on Windows servers. At this time, HW VSP fully supports Windows 2. Server and Windows 2. Server. Support for Windows 2. Server is being tested. In this mode, HW VSP consists of a client side part setup GUI and a server side part the service itself. Parameters of a VSP running on a remote server can be easily changed from a local PC. However, in order to improve stability, only one user may access the service and change virtual port parameters at a time. Furthermore, since service administration requires administrator privileges, securing a VSP against misuse is as simple as not installing the client side part. Note From the user point of view, using HW VSP in service mode has many advantages. However, on Windows XP SP2Vista2. Server, it is necessary to manually configure the firewall to enable the appropriate communication ports or the entire application by default Program FilesHW groupHW VSP3sHWVSP3ssrv. Program FilesHW groupHW VSP3HWVSP3srv. Firewall dialog control is currently under development. Baudrate emulation. In the previous version, HW VSP was fully transparent to the client software and did not restrict the communication flow in any way. Hence, the client SW had to send the data to the serial port using a defined communication speed, or use flow control handshake. Otherwise, data were sent to the Ethernet Internet with the maximum speed possible, often in the 1. Mbps range. When the buffers in VSP filled up, data started to be thrown away. Now, it is possible to enable the Strict Baudrate Emulation option in the Settings tab to ensure that VSP communicates with the client SW using the speed that is currently selected for the port. Note The Strict Baudrate Emulation option is only available when connected to HW group devices and with NVT support enabled. Blm Nepa Handbook Web Guide. Purging transmit and receive buffers. The option allows to clear Ethernet receive and transmit buffers when the port is opened. This ensures that the client application does not receive any previously received data e. Automatic connection to previously opened port. This function allows connecting VSP to the port previously created and opened by the client application. This function is useful for servers, where it eliminates the need to close the corresponding virtual port before restarting server or the VSP service. Configuration stored in an INI file. With the introduction of the multi port version, VSP configuration is now stored in an INI file instead of the system registry. Therefore, configuration can be easily backed up or restored to another PC or server simply by copying the file and restarting the service. The INI file contains a complete VSP configuration, enabling the user to create a custom graphical interface to generate the INI file. Upon restarting the service, the INI file is loaded and the port parameters are changed no need to study the complexities of controlling services. WC VSP for Wireles. COM is an example of such a customized application. Works with Windows 8 HW VSP 3 now fully supports the Windows 8. UAC user switching support is also fully functional now, including functionality in a domain. When HW VSP is run as a service, all users can control it. Installing HW VSP3. HW VSP 3 is freeware you can download it free of charge HERE. The software is available in a single port and multi port version development is in the final stage now. Installation is straightforward, except for Windows Vista, where it is necessary to allow the installer to elevate its privileges. Installation procedure Run the HW VSP Setup 3. Step 1 The welcome screen is displayed. Click Next to proceed to the next step of the installation, or click Back to return to the previous step. Step 2 The basic product information is displayed. Step 3 Select the location where to install the driver. Select installation type Client Server Standalone or Custom. Step 4 Choose a name for the folder to create in the Start menu. Step 5 Select whether you want to create a shortcut on the Desktop. Step 6 The entered data are displayed for verification. Step 7 Confirm the installation. Step 8 HW VSP will prompt you to agree with adding HW VSP to the list of exceptions for Windows Firewall. Permission is necessary for correct operation. If you deny the permission, you will have to add the application and the service to the list of exceptions manually. If the installation is successful, the following window appears. If you check the Launch HWVSP box, the program is started after completing the installation. It is not necessary to restart the computer after the installation. You can start HW VSP by clicking the VSP icon icon with a red arrow.