The serial interface or serial port, also known as RS-232 is a communication port used to connect modems, mouses, some printers, scanners and other hardware equipment.

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How to fix the COM port name for USB serial port in Windows 7?

I am using USB-to-Serial port adapter in Windows 7 notebook. The model as seen in Control Panel > Hardware and Sound > Devices and Printers is named as Profilic USB-to-Serial Comm Port. When ...
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Using a named pipe to simulate a serial port on a VMware virtual machine (linux host and client)

Trying to write a python program to create a simulated data stream and feed it, through a named pipe, to a VMware virtual machine. The host is running Ubuntu 11.10 and VMware player 5.0.0. The Vm is ...
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Serial TTA0: connection to Virtual machine | Weird characters and no input

I have setup a serial TTA0: connection to an OpenVMS Emulator running in virtual windows. The console serial port is configured as follows: TTA0.type="socket" TTA0.port=":20000" TTA0.stop_process="...
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Linux tells me a serial port is in use, but it isn't

On CrunchBang linux (Debian variant), I have a COM port on ttyS0, which I'm trying to use with an NFC device. libnfc responded that it couldn't see any NFC devices, so I tried directly opening the COM ...
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820 views

How can I log in my alteon2424?

I was given an old alteon 2424. Pluging a serial cable on the console port allows me to see it booting. I can choose at boot between 2 images in nvram by pressing ctrl o. Both images talk about ...
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125 views

Piecing together low-powered hardware for an RS-232 terminal server

I'm working on reconstructing my Cisco lab for training/educational purposes and I found that the actual terminal server I have is dead. I have a couple of 8-port PCI serial cards which would be more ...
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588 views

How to set up a serial port in VirtualBox?

I need to access a serial device in my VirtualBox guest (Windows XP). My host system is ArchLinux 64-bit. I configured the VirtualBox serial port as follows: Port: COM1 IRQ: 4 I/O Port: ...
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How to set up usage of a serial port?

I am working on Linux (TinyCore). As a part of work process, i must use a serial device to transmit data. However, i am having severe troubles with it. The crux of the issue is that no data seem to ...
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147 views

Can I read a serial console over USB (not with an adapter)?

I'm working with a device that provides serial console access via a USB-B port. My workstation is a laptop running Linux Mint 17.1. Previously, I was able to access the serial console from my laptop ...
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102 views

How do I dump every byte written to a tty?

When connecting to a switch over serial (/dev/ttyUSB0) using PuTTY, I'm presented with a login prompt. If I connect using the Python pyserial library and write a few line breaks (\n\n\n) I'm not ...
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183 views

How can I allow two applications access to the same serial port

I need two application to run on the same serial port (/dev/ttyUSB0). One is a read-only monitor, while the other is an application that will read the data on the serial port and respond back. How ...
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Serial Port output history?

Is there a way I can go back and view previous serial sessions I have had? I use cu on ubuntu to open the serial connection. I need to see if I can find a traceback on my cisco router. thanks
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159 views

xmodem communication over serial port via Tera Term is failing

I'm updating the firmware of transmitters over a serial port using Tera Term. For whatever reason, the upload, via xmodem, keeps failing (or timing out or something along those lines) and I'm trying ...
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455 views

Setting up a virtual Com Port?

What I need to get to work together: A USB barcode scanner A Windows (7) Machine A piece of software that listens for data over a COM port So I believe I need a way to make USB device appear to be ...
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317 views

Receive a file using runscript (minicom scripting language)?

With runscript one can script minicom serial line sessions. I try to script the reception of a file transferred with ymodem. Minicom uses external programs for file transmission. I tried runscript's "!...
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Make serial gnu-screen send a line at once

Is it possible to send lines at once in linux screen utility, if used as serial terminal, like for example screen /dev/ttyACM0 9600? By default, every character typed is sent immediately, but my ...
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131 views

How to install Windows 95 from CD-ROM on laptop with no CD drive

I have a old Toshiba T4700CT laptop which I'd like to install Windows 95 on. However I own't Windows 95 on CD-ROM and this laptop only has floppy. I'd prefer not to have to hunt down and pay for a ...
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Problems sending data over serial port with PuTTY

I am using version 0.63 on Windows 7 x64 in a corporate domain environment. I have an enduser that is programming a bluetooth module over a serial connection. He is using a USB to Serial and we had ...
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604 views

Editing Kernel configuration file

I'm trying to compile uplcom driver for Ubuntu 12.04 for USB support of PL-2303HX serial adaptor using the following link. http://manpages.ubuntu.com/manpages/jaunty/man4/uplcom.4freebsd.html But, ...
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669 views

Sending number over serial to arduino sending something different?

I have an arduino setup that turns on a light when it receives a 1, and turns off a light when it receives a 0. I don't think there is anything wrong with the code. I can send the Arduino a 1 with ...
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291 views

Generic text printer / print job status

I've a serial text only printer attached to a machine with Win XP and am using Generic text only printer driver to print jobs. The printer prints jobs properly when it's ON. When it is OFF, the ...
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640 views

Virtual COM Port Using usbser.sys Keeps Dropping

I have a C# wpf application that is communicating with a device via a virtual com port over USB. This device is using the usbser.sys driver. Everything works normally as expected and communication is ...
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Forwarding Data from COM Port via Ad-hHoc Network on Linux

I'm new to Linux and I'm trying to setup an ad-hoc network between two computers in order to send data coming from a COM port on one computer to the other. Currently I'm running Lubuntu 12.04 on both ...
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328 views

Sending a file to uCLinux

I have a board running uClinux, and I need to send a file to it, but I'm not sure how... I have a RS232 port, and Ethernet port with an IP address at my disposal, I can telnet to the board, but ...
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875 views

Serial port IRQ sharing on Linux

I was never able to use two serial ports for I/O on Linux that shared the same IRQ, although the serial driver has "IRQ sharing" enabled. Some BIOS simply don't have enough IRQs to give to each port, ...
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Prolific USB-to-Serial Comm Port significantly slower under Windows 7 comparing to Windows XP

I am using a Prolific USB-to-Serial adapter based on the Prolific chip to use with a device on serial port. I have the latest version of the driver installed: 1.3.0 (2010-7-15). When I use my device ...
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630 views

XP to XP link with SLIP over serial - No IP address on host computer side?

I'm trying to set up a SLIP link using a serial connection between two XP computers. This is to test some specialized communications hardware that only supports IP via SLIP. As a starting point, I'm ...
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19 views

USB Bar-code Scanner - Read data from Serial Port

So, I'm trying to read the Barcode via the Serial Port but the Scanner isn't showing up as a Com port.... the scanner works fine as a Keyboard, but when I scan the code to set it to 'Serial' nothing......
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Make stty setting permanent

I tried to setup raw serial communication over ttyusb0 and used stty to change baud rate and raw mode. Those settings were successful and it was visible after I checked ttyUSB0 again, so after stty -...
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USB to Serial cable fails to establish communication on Ubuntu

I have a serial device which works fine when connected directly to the serial port of the linux box but fails when I connect it using a serial-to-usb cable - that is using the USB port on the linux ...
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40 views

How to automate putty commands when connection is through serial port?

Two files are there. I want to run trial .txt cmd in serial port connectivity with a hardware.pls suggest how to automate this. I will use these cmds repetititvely. Batch file cmds below sv.batch ...
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modem didn't respond to AT commends

I want to perform some AT commends on my huawei ec122 modem (locked) but i didn't receive any response from it. i am using c# to perform request with waterline method the port open without problem and ...
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FTDI driver installed but COM port is not appearing (Windows 7, 64bit)

I'm firmware engineer and using the FTDI chips a lot. Everything works great. But today, with one device I have a problem. In my colleague PC, the COM port of the device appears, but in other PCs in ...
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Advance a Bluetooth device from paired to connected Win10

A bluetooth medical device is paired (indicated in screenshot) with a Win10 laptop and the two communicate via SPP (serial port protocol). What user actions can be taken to prompt the connections so ...
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51 views

Access bluetooth RFCOMM through android terminal

I would like to access to RFCOMM to set up a bluetooth virtual serial port on my Android device using the terminal. I do have root permissions on my android device. When I type "rfcomm" in the ...
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How to share a serial port between a gdbserver and a system console

I am trying to debug userland applications on an ARM-based embedded system running a Linux/Busybox software stack. GDB runs on a host (Debian) PC and the target has a gdbserver. I'd like to use one ...
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VMWare WS 12 - connecting to guest OS via serial port

I installed a virtual image of an appliance. The HW version of the appliance has a serial port for initial configuration, and I'm trying to do the same with the virtual. Following https://www.vmware....
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Printing over USB in FreeDOS 1.1

I was hired by a small business to upgrade their computer system and have run into a very complex issue that no one else on the internet has battled quite like I have. I'm at my wits end. If any of ...
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223 views

Sending commands via serial connection

I've got a Sartorius GD-503 electronic lab scale that I'm trying to work into a control setup. I've got both the regular manual and the data interface description manual. So far I've got my laptop ...
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CDC Virtual Serial Port

I would like to know what a CDC Virtual Serial Port for Windows and Linux is. I have an idea of some of the components (like a virtual serial port), but I don't understand some of the pieces (like ...
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Serial port interference on Linux?

I am attempting to communicate with a MODBUS device over serial port. On my Windows machine this works, and the modpoll software can talk to the device just fine. However, on a fresh Arch Linux ...
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126 views

How to run a virtual machine with no graphics card (VGA) configured in VirtualBox

I want to use the following feature of Linux (which one of my virtual machines): If no console device is specified, the first device found capable of acting as a system console will be used. At ...
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Change serial connection speed in ExtraPuTTY automatically

I really need help.. I'm using ExtraPuTTY to open a terminal on some serial port on my PC. At the beginning of the session I want to transfer a file over Putty XMODEM feature to the end-point at 3Mb/s ...
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181 views

Converting serial port binary hex to serial port ASCII decimal

I'd like to convert a binary hexadecimal data string on one serial port to an ASCII decimal string output to another serial port. Is there already an application that does this? If not, would it be ...
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Where can I find a serial port cloner for Debian Linux

I have two application that need to share the same serial port, one is for monitoring and the other will actually respond back to what will happen through the physical port. I tried to make use of ...
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Define a USB Device Port on Mac OSX 10.10

I am using a 3D printer app that is not the driver that came with the printer. The advantage of this app is it can utilize a reloaded filament cartridge and ignores the state of the chip. However, it ...
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How do I Introduce Latency to a Serial Port

I am looking for a way to introduce latency to a serial port. I am using a radio through a USB port and am looking to purposely delay the transmission by some amount of time (hopefully in an easily ...
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315 views

How do I configure Putty to show non-printing Ascii Characters when using a Serial Connection

I am trying to debug communication with a hardware device via serial port. The hardware device will occasionally send out information that is not a alphanumeric or whitespace character. While my ...
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684 views

Creating a console adapter for an ACME packet server

I am having a hard time with this problem and hoping that someone can help me out. I have an ACME packet 4250 server that needs a console cable to access it. The box itself takes an RJ-45 in the front....
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236 views

Serial connection to Cisco C40 not taking input

I have a cisco c40 video codec that is not accepting the admin credentials that I established for it over SSH/HTTPS. I suspect that the config file is corrupt as there are other erroneous behaviors in ...