The simulation of a serial port in software in order to allow USB, Ethernet or some other input/output port to take its place. Virtual serial ports are necessary to enable an application that was written for the serial port to run on a computer that does not have that interface. See serial port.
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Virtual Serial Port Windows 10
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× From Eterlogic Software:VSPE is intended to help software engineers and developers to create/debug/test applications that use serial ports. It is able to create various virtual devices to transmit/receive data. Unlike regular serial ports, virtual devices have special capabilities: the same device can be opened more than once. Using VSPE you can share physical serial port data between several programs, create virtual pipes and so on. Version 0.865 includes unspecified updates.
What do you need to know about free software?
You can use this software solution when you need to create several virtual devices that constitute the basis to send and receive data
Modern systems come with one or no serial ports, as they use high-speed USB ports to connect to other hardware devices. However, there are some devices that still require serial ports for transferring data. That is where Virtual Serial Ports Emulator comes in.
Designed mostly for helping developers create and test applications that use serial ports, it can generate several virtual devices, some creating virtual ports and some having no relation with the kernel driver.
The following devices can be created: connector (can be opened twice), splitter, mapper (redirects all the requests to another port), pair device (two connected virtual ports), TCP server and client, serial re-director, UDP manager (receives serial port data via UDP connection), bridge (connects two data streams) and spy device (sends the intercepted data to another data stream).
Virtual Serial Port Mac
Each one of these simulators has its own characteristics and advantages, but the common one is that they can be used simultaneously by more than one application.
Within the main window of the software, you can view a list of all the devices and their status, as well as a log of all your actions. The right-click menu enables you to edit, delete or reinitialize the selected serial port simulator. You can set the software to automatically remove the kernel device at exit.
Detailed logging, device debugging, TCP keep-alive capability and device re-initialization are other features the application brings to the table.
In addition, it provides some advanced tools for professional users. For instance, you can control and monitor devices state on a remote computer by setting up a HTTP server, while the data monitoring tool allows you to know what data is sent and received.
Virtual Serial Ports Emulator is designed to solve compatibility issues with older applications and help you create and use several serial ports at the same time, without having to install hardware components.
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New in Virtual Serial Ports Emulator 0.938.4.846:- Added Spy device
- TcpServer and TcpClient devices now supports COM port read-only and COM port write-only modes
- Fixed bug with localization of the device properties dialog
- Added ability to reorganize devices (move up and down) when emulation is stopped
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This enables Disqus, Inc. to process some of your data. Disqus privacy policyVirtual Serial Ports Emulator 0.940.5.097
add to watchlistsend us an update- file size:
- 19.8 MB
- filename:
- SetupVSPE.zip
- runs on:
- Windows 7
Windows Vista 32/64 bit
Windows XP
Windows 2K - main category:
- System
- developer:
- visit homepage
I have to create virtual com port,by which I can communicate with other com port on machine,It is a part of device driver development?or simply we can write in c++.
Anyone can help me on thisThanks in advance.
2 Answers
You'll have to write a driver, so you'll need to install the WDK (previously called DDK). But you're lucky, because the Windows Driver Kit Samples Pack contains a Virtual Serial port sample.
It seems that you want a 'translater' to talk with a device, why not simply write a filter driver and implement some additional IOControls?
If you really want to access an other port from within your driver (which I already did once), you should look up following functions:
IoGetDeviceObjectPointer
/ObDereferenceObject
(for opening/closing the port)IoBuildDeviceIoControlRequest
/IoCallDriver
(for sending IOCTL's to change port settings)IoBuildSynchronousFsdRequest
/IoCallDriver
(for writing/reading data)
Structures/IOCTL's you'll need:
SERIAL_BAUD_RATE
(forIOCTL_SERIAL_SET_BAUD_RATE
/IOCTL_SERIAL_GET_BAUD_RATE
)IOCTL_SERIAL_SET_TIMEOUTS
SERIAL_HANDFLOW
(forIOCTL_SERIAL_SET_HANDFLOW
/IOCTL_SERIAL_GET_HANDFLOW
)SERIAL_LINE_CONTROL
(forIOCTL_SERIAL_SET_LINE_CONTROL
)IOCTL_SERIAL_PURGE
IOCTL_SERIAL_SET_WAIT_MASK
/IOCTL_SERIAL_GET_WAIT_MASK
IOCTL_SERIAL_SET_CHARS
/IOCTL_SERIAL_GET_CHARS
IOCTL_SERIAL_WAIT_ON_MASK
A complete overview of control requests can be found here
Have a nice trip :)
I am assuming you are asking this for a Windows environment because you tagged with winapi.
Yes, you will need to write a virtual driver for this. The good news is, the DDK (now called the WDK) is freely available from MS. If you don't have VS2013 (required for the 8.1 version of the WDK), you can get the Express Edition from the MS web site for free.
on edit: you might want to check this out - http://com0com.sourceforge.net/. From the description:
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The Null-modem emulator is an open source kernel-mode virtual serial port driver for Windows, available freely under GPL license.
The Null-modem emulator allows you to create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. Each COM port pair provides two COM ports. The output to one port is the input from other port and vice versa.
It sounds like it might be pretty much what you're looking for.
Not the answer you're looking for? Browse other questions tagged c++winapidevice-driver or ask your own question.
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Enable serial-based applications to communicate over a network connection through a virtual serial port on your PC, eliminating the need for a DB9 interface. Virtual Comm Port software is provided free with your NetBurner device purchase.
Virtual Serial Port Emulator
- Connect serial devices to computers without a physical COM port
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- Easily set up and use a virtual COM port
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