Com0com windows 10 x64 настройка

5.1 Com0com Installation and Configuration(Windows)

Download the signed version of com0com.

Unzip the downloaded .zip file and run the specific installer of your operating system, x86
for windows 32-bit or x64 for windows 64-bit.

Configure the “choose components” window as the figure below:

Картинка с сайта: lcgamboa.github.io

In the last configuration window, check the “Launch setup” option:

Картинка с сайта: lcgamboa.github.io

In the setup window, change the port names to COM1, COM2, COM3 …. Just check the
“enable buffer overrun” and “use Port class” options on the port used to CuteCom, click in
the “Apply” button and close the setup. In the configuration shown in the figure below, the
port COM1 (with buffer overrun disabled) must be used by the PICSimLab and
COM2 (with buffer overrun enabled) by the application with serial communication.

Картинка с сайта: lcgamboa.github.io

com0com это свободная утилита для создания пары виртуальных последовательных портов, которые могут быть использованы для получения отладочных данных от ReactOS и направления их в программу-терминал.

Полезные программы-терминалы, при помощи которых можно получить эти данные:

• Hyper Terminal
• Teraterm
• Putty
• Hercules
• ReactOSDbg

Установка

Загрузите com0com и установите его. Утилита автоматически создаст пару виртуальных COM-портов «CNCA0» и «CNCB0», соединённых виртуальным нуль-модемным кабелем.

При необходимости, вы можете изменить имена и задать настройки при помощи графического интерфейса настройки (setupg.exe). В этом примере они названы COM4 и COM5.

ВАЖНО: Теперь нажмите кнопку Apply. Windows автоматически определит наличие «нового оборудования», после чего нажмите Next, и Windows обнаружит и установит новое устройство «com0com serial emulator».

Теперь всё готово.

Соединение виртуальной машины и терминального приложения

Присоедините виртуальную машину к первому виртуальному порту («COM4») и программу-терминал ко второму («COM5»).

Свойства последовательного порта (обычно задаваемые в виртуальной машине), такие, как скорость передачи данных, не имеют значения. Однако, убедитесь, что у вас задан параметр «NO FLOW CONTROL» (не управлять потоком), поскольку иначе терминал не сможет получать данные.

Что делает com0com?

Виртуальная машина создает порт COM1 в ReactOS, который используется для отправки отладочных сообщений.

Виртуальная машина этот отображает порт в виртуальный порт, видимый в основной операционной системе.

com0com эмулирует нуль-модемный кабель между виртуальной машиной и терминалом.

Com0Com is a software application that allows users to create virtual serial ports on a computer. Com0Com is a tool that allows users to emulate hardware devices over virtual COM ports. With Com0Com, users can easily make connections between two applications that are not compatible with each other, even if those applications are running on the same computer.

Using com0com allows for two virtual serial ports to be created and connected together, providing an easy way to test software that requires serial communication.

Features:

• Create virtual serial ports: Com0Com allows users to create virtual serial ports on their computer. These ports can be used to emulate hardware devices or to connect two applications that are not compatible with each other.

• Easy to use: Com0Com is easy to use. It requires minimal setup and can be used with any Windows computer.

• Reliable: Com0Com is a reliable tool for creating virtual serial ports. It is also reliable for connecting two applications that are not compatible with each other.

• Secure: Com0Com is a secure tool. It uses encryption to protect all data transferred over its virtual serial ports.

• Compatible: Com0Com is compatible with Windows XP, Vista, 7, 8, and 10.

• Free: Com0Com is a free application. It can be downloaded and used without any cost.

• Open Source: Com0Com is an open source project. This means that it is developed and maintained by a community of volunteers who are dedicated to providing a reliable and secure tool for creating virtual serial ports.

• Configurable: Com0Com is configurable. Users can configure the settings for each virtual serial port to meet their specific needs.

• Compatible with Many Applications: Com0Com is compatible with many applications, including but not limited to, industrial control systems, medical devices, robotics, and embedded systems.

• Support: Com0Com provides extensive documentation and support for users.

• Scalable: Com0Com is scalable. This means that users can create as many virtual serial ports as needed, depending on their needs.

Com0Com is a powerful and reliable tool for creating virtual serial ports and connecting two applications that are not compatible with each other. It is easy to use, secure, compatible with many applications, and free. With its configurable settings, scalability, and support, Com0Com is an ideal solution for creating virtual serial ports.

Because I wanna to use serial to communicate with OVMF via QEMU, I tried to search a workable serial port emulator for free

The first choice is com0com but seems the project owner cannot resign its driver for Windows 10 without need to enabling TESTSIGNING mode or disabling SecureBoot, but the both workaround are not accepable.
Fortunately, there is a workable signed driver provided by PETE’S BLOG.

Download

• Get the driver form here.

Install

• No need to install the software, it just only a driver and setup utility setupc.exe

Setup

• Run setupc.exe
  The help message as below for the setupc.exe

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Enter 'help' to get info about usage of Setup for com0com.

command> list
       CNCA0 PortName=COM1
       CNCB0 PortName=COM2
command> help
Setup for com0com

Usage:
  [options] <command>

Options:
  --output <file>              - file for output, default is console
  --wait <to>                  - wait <to> seconds for install completion
                                 (by default <to> is 0 - no wait)
  --detail-prms                - show detailed parameters
  --silent                     - suppress dialogs if possible
  --no-update                  - do not update driver while install command
                                 execution (update command expected later)

Commands:
  install <n> <prmsA> <prmsB>  - install a pair of linked ports with
   or                            identifiers CNCA<n> and CNCB<n>
  install <prmsA> <prmsB>        (by default <n> is the first not used number),
                                 set their parameters to <prmsA> and <prmsB>
  remove <n>                   - remove a pair of linked ports with
                                 identifiers CNCA<n> and CNCB<n>
  disable all                  - disable all ports in current hardware profile
  enable all                   - enable all ports in current hardware profile
  change <portid> <prms>       - set parameters <prms> for port with
                                 identifier <portid>
  list                         - for each port show its identifier and
                                 parameters
  preinstall                   - preinstall driver
  update                       - update driver
  reload                       - reload driver
  uninstall                    - uninstall all ports and the driver
  busynames <pattern>          - show names that already in use and match the
                                 <pattern> (wildcards: '*' and '?')
  quit                         - quit
  help                         - print this help

Syntax of port parameters string:
  -                       - use driver's defaults for all parameters
  *                       - use current settings for all parameters
  <par>=<val>[,...]       - set value <val> for each parameter <par>

Parameters:
  PortName=<name>         - set port name to <name>
                            (port identifier by default)
  EmuBR={yes|no}          - enable/disable baud rate emulation in the direction
                            to the paired port (disabled by default)
  EmuOverrun={yes|no}     - enable/disable buffer overrun (disabled by default)
  EmuNoise=<n>            - probability in range 0-0.99999999 of error per
                            character frame in the direction to the paired port
                            (0 by default)
  AddRTTO=<n>             - add <n> milliseconds to the total time-out period
                            for read operations (0 by default)
  AddRITO=<n>             - add <n> milliseconds to the maximum time allowed to
                            elapse between the arrival of two characters for
                            read operations (0 by default)
  PlugInMode={yes|no}     - enable/disable plug-in mode, the plug-in mode port
                            is hidden and can't be open if the paired port is
                            not open (disabled by default)
  ExclusiveMode={yes|no}  - enable/disable exclusive mode, the exclusive mode
                            port is hidden if it is open (disabled by default)
  HiddenMode={yes|no}     - enable/disable hidden mode, the hidden mode port is
                            hidden as it is possible for port enumerators
                            (disabled by default)
  cts=[!]<p>              - wire CTS pin to <p> (rrts by default)
  dsr=[!]<p>              - wire DSR pin to <p> (rdtr by default)
  dcd=[!]<p>              - wire DCD pin to <p> (rdtr by default)
  ri=[!]<p>               - wire RI pin to <p> (!on by default)

The possible values of <p> above can be rrts, lrts, rdtr, ldtr, rout1, lout1,
rout2, lout2 (remote/local RTS/DTR/OUT1/OUT2), ropen, lopen (logical ON if
remote/local port is open) or on (logical ON). The exclamation sign (!) can be
used to invert the value.

Special values:
  -                       - use driver's default value
  *                       - use current setting

Examples:
  install - -
  install 5 * *
  remove 0
  install PortName=COM2 PortName=COM4
  install PortName=COM5,EmuBR=yes,EmuOverrun=yes -
  change CNCA0 EmuBR=yes,EmuOverrun=yes
  list
  uninstall
  busynames COM?*

• Install COM1 and COM2

1

Install PortName=COM1 PortName=COM2

• List

• Uninstall

Reference

• https://sourceforge.net/p/com0com/bugs/32/
• com0com signed drivers