Eterlogic software

Virtual Serial Ports Emulator (VSPE) was developed as a solution to help engineers and software developers to create/debug/test applications that use serial ports.

Unlike regular serial ports, virtual COM ports may have special capabilities: for example, VSPE can create virtual port which be opened by multiple applications.

VSPE can share existing serial port with multiple applications (split/merge data), send serial port traffic over network (TCP or UDP protocol), transform data, create connected virtual ports and so on.

• Virtual Connector creates virtual COM port which can be opened by two applications to exchange data.
• Virtual Pair creates two connected virtual COM ports.
• Virtual Splitter creates multiple virtual COM ports connected to existing COM port in order to share it with many applications.
• Mapper redirects requests from one COM port to another COM port (useful if you want to redirect traffic from legacy application which cannot be re-configured).
• TcpServer shares COM port over network (listening to local TCP port). Data can be modified/filtered with Transformers.
• TcpClient shares COM port over network (connecting to remote TCP port). Data can be modified/filtered with Transformers.
• Serial Redirector redirects data between two COM ports. Data can be modified/filtered with Transformers.
• UDP Manager shares COM port over network using UDP protocol. Data can be modified/filtered with Transformers.
• Bridge connects two generic data streams (COM port, TcpServer, TcpClient, Named Pipe, File). Data can be modified/filtered with Transformers.
• Transformers can filter/transform live traffic flowing through some of VSPE devices above. For example, you can configure multiple TcpClients to receive only specific data from TcpServer.
• Native x86, x86_64 and arm64 platforms support.
• VSPE service can automatically restore last known VSPE configuration on Windows startup (if enabled in settings).
• Translated to 15 languages.
• No telemetry/usage data collection.

This version contains new features and changes based on user feedback.

Your existing license key will work for this version.

Highlights:

• Virtual ports are now visible in Device Manager and to all applications
• VSPE service (running with minimum privileges on local computer) is now automatically loading last known configuration on startup (if enabled in settings)
• Native ARM64 platform support
• Introducing transformers for user-mode devices to filter/modify/control consistency of the data flows
• Virtual Splitter device: legacy mode with single shared virtual port or new mode with multiple virtual ports for better data flow control
• Fixed unicode characters localization and added new languages

• All kernel devices: fixes for Read/Write timeouts, supporting additional serial port events
• Virtual Splitter: internal data flow is fully re-written to make Splitter more reliable
• Virtual Connector/Pair: fixed baud rate emulation, resetting DTR/RTS registers on disconnect
• Virtual Splitter/Connector adding option to limit connections from the same application to the same virtual port
• Redirector, UdpManager, TcpServer, TcpClient, Bridge (Serial Port): switched to async read mode for better performance
• Transformers: Added LineSplitter and TextFilter transformers, adding multiple transformers for all supported user-mode devices
• Bridge: added NamedPipe client/server
• Serial Redirector: fixed issue with incorrect settings for device 2
• UdpManager: added read-only and write-only settings for COM port
• User interface: Added Start/Stop/Clone commands for devices
• User interface: "Open with terminal" menu now works for all virtual ports and TcpServer
• User interface: Terminal: fixed new lines, scrolling
• User interface: COM port selection drop list is now correctly pre-filled with existing COM port names
• Installer: validating for x32 platform installer when installing on x64 operating system because it caused driver installation issues
• Removed non-relevant settings (delete devices on quit, set as service helper etc) and command line parameters
• Deprecated: HttpServer is deprecated and removed
• Removed kernel devices data flow monitoring (it will be replaced with better monitoring solution in future version)
• VSPE documentation is fully re-written
• TcpServer: fixed bug with not setting keep alive settings for connected sockets
• TcpServer: added option to Close/Open COM port based on TCP connection state (number of connected clients)
• TcpServer: added maximum number of connections configuration setting
• TcpClient: fixed reconnection timeout setting
• TcpClient, Bridge: moved connection logic to separate thread to avoid lag when creating device
• TcpServer, TcpClient now can have only modem registers control connections (no data connections)
• Bridge file data source: input file is opened with share write permissions, allowing input file to be updated
• Bridge file data source: added option to read file from end

• Introduced initial DTR/RTS states in serial port settings
• Fixed initial DTR/RTS states for TcpServer and TcpClient depending on connection status
• Removed deprecated python 2.7 python bindings
• Added buffer size in Bridge configuration (Tcp flow)
• Bridge device: not displaying error if initialization failed, allowing it to re-connect
• Fixed ReadIntervalTimeout kernel driver bug
• UdpManager: fixed receiver with datagram size > 1024
• Keyboard navigation UI fixes
• Few UI tweaks and improvements