The serial-port tag has no wiki summary.
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Using USB as COM -> net use COM not working
I am trying to print something from a printer that is connected through a USB cable, however I want the USB port to act like a COM port for my software. So how do I make my USB port work like a COM ...
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39 views
Linux IrDA printing
I have a USB IrDA that I got working with my IrDA printer (SiPiX compact printer A6) on the Windows side, using default 4000000 speed and 1.0ms turn-around time (in the driver config). The USB IrDA ...
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3answers
128 views
Putty or Tera Term VT alternative for OS X
I am currently using putty and Tera Term VT for connecting to external devices over serial port for bugging. Is there any alternative for OS X?
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1answer
33 views
How do I set up Debian 6.0.3 to work with serial terminal?
My problem is that most guides on the Internet I've found explain how to enable serial terminal on GRUB 1 and it appears that they moved to GRUB 2 on Debian.
I'm running Debian inside VMware and have ...
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2answers
89 views
How to read data from LAN cable?
I have a device that connect to a Window PC by LAN cable directly instead of serial port. Back when I use serial port, I can use coolterms or hyperterminal program to read the exact data send in from ...
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21 views
Serial port monitor/spy utility
Is there a good free utility which can monitor (spy, sniff) COM port traffic? I am running Windows 7, but have an XP machine if needed.
I tried using ProcMon, but for some reason it only logs port ...
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1answer
176 views
How can I reduce high CPU usage from DPC's with USB Serial Ports
I have an app that communicates with up to 50 devices over serial ports. The communication takes place in threads, and the threads are throttled so that only a certain number are active at once. ...
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47 views
Accessing serial port via sockets
I'm on windows and I need to access my com5 serial port via sockets. I tried serproxy but it does not work. Is there a better tool to do it?
This serial port com5 is a virtual serial port of my 3g ...
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1answer
40 views
RS232 from a Decatur Radar to a PC
I just got a Decatur SI-2 it communicates via RS232 through a DB9 connector.
So I went out to BestBuy and got a Dynex™ 16" USB PDA/Serial Adapter Cable. Since I couldn't get it to work on my Macbook ...
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1answer
32 views
What is the best type of port to set in this java code if I want to test a mobile phone communication with a Linux computer?
There is a mobile phone device and a Linux computer server. I attached the mobile phone's serial cable to the mobile phone device ( Alcatel OT-806D ) and at the usb port of the computer. I chose "COM ...
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2answers
170 views
How can I use my cell phone to establish a dial-up networking connection?
I am using Windows 7 and have a BlackBerry with T-Mobile (U.S.). I have paired the phone with my computer over Bluetooth, which automatically creates a serial port for it. I am able to open the port ...
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33 views
Is there any way to change USB to COM converters port number?
I have laptop PC with no Serial Port (COM port). Trying to get work this device (BTW: this device works on PC's with built-in COM port) I'm using USB to COM converter for connecting this device to ...
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73 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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1answer
40 views
How can I replace some old serial numeric keypads?
My Problem:
I have some older serial numeric keypads that are getting hard to replace. I tried a USB keypad but the distance of the cord wasn't long enough, so I tried using a USB to ethernet and ...
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1answer
194 views
How to do hardware DTR/DSR flow control on Linux (serial port programming)?
It's possible to setup a serial port communication using hardware flow control with the RTS/CTS pins (CRTSCTS flag for tcsetattr), but there is no way to use the DTR/DSR pins for flow control in a ...
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1answer
292 views
How can I monitor a virtual serial port in Windows 7?
I need to listen to everything that goes (both directions) through a virtual serial port on Windows 7 64bit.
I do not need to send anything, just monitor the communication for debugging purposes.
...
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1answer
80 views
Trackball with 9 pin serial port not recognized by OS
I need to support a trackball mouse (Make:- Cortron Inc) with a 9Pin serial port connector in my application (qt VS2008). This mouse is not getting recognized by my OS (Windows XP) (I dont see the ...
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1answer
122 views
interpreting stty output to start connection with hyperterminal
I am trying to communicate between an embedded device which runs linux and a PC which runs windows xp over a RS232 connection. On windows I use Hyperterminal, but I don't know which settings I should ...
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3answers
425 views
How can I find out what chip is used in USB <-> Serial (RS232) converter from FTDI?
I have an USB <-> RS232 converter with no designation of producer on it. After plugging it into USB port on Windows Vista 64bit computer I chose an option to automatically find and install drivers ...
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169 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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1answer
66 views
information about COM ports in Windows [closed]
Is it possible in Windows to get information about the COM ports?
If yes, where and how?
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1answer
156 views
Establishing Serial Port communication through USB in Linux
I am new to Ubuntu and I need to establish a serial port communication between my PC and microcontroller MSP430G2452.
On connection the USB available with the Launchpad and using lsusb.
It ...
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2answers
134 views
Do I fry my device when attaching a 5V RS232 converter to a 3.3V port?
I have a device, namely a Synology DiskStation. It has a 3.3V RS232 interface on board. All I have is a 5V RS232 to USB adapter. Can I attach it to my DiskStation without making any smoke?
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2answers
90 views
What's the simplest (free) way to share a serial port over an ethernet link?
I have two computers and I'd like to access the serial port on one machine from the other. Is it possible to do this with free software and if so, what options do I have?
The sharing machine is ...
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1answer
249 views
Set up a Serial-to-Ethernet Converter With a Virtual Serial Port in Ubuntu
I have a '3one data' brand serial-to ethernet converter, that plugs into a serial device at one end, and allows bidirectional communications with the device over an ethernet connection, like this:
...
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1answer
128 views
Redirecting serial port keeping ability to send signals
I have the following scenario: a laptop running Windows XP, connected to a meter through its serial port.
I need to read/write to this serial port from a remote computer (running windows 7). I also ...
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1answer
278 views
Saving a binary file with HyperTerminal
I have an embedded platform that is connected to my Windows PC via the serial connection. The embedded application sends 532 bytes through the connection. Using HyperTerminal, I am able to see the ...
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3answers
89 views
connecting device without null modem cable
I have a data collector device which has a RS-232 male port, and the PC which sends data to that device has also a COM (RS-232) male port.
For wiring I have a RS-232 cable (male to female) and a ...
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2answers
200 views
NetBSD Networking
I have an old Toshiba Satellite 4015CDT, with Pentium II MMX, 32MB RAM, 4GB HDD. It also has one USB 1.0 port, parallel and serial ports, a 3.5" floppy drive and a CD-ROM drive (probably almost dead). ...
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1answer
299 views
Use serial port (COM) as LPT1
I have a device that needs to be plugged in to LPT1 to run a legacy software.
I am trying to find a workaround to get it running in a latptop (without parallel port, obviously). I have HL-340 ...
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1answer
104 views
Serial GPS as time source on Windows 7?
How do I use GPS device connected over serial port as a time source in Windows 7?
I have a GPS receiver on my mobile phone which sends data using Bluetooth serial link in NMEA format to computer.
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1answer
439 views
Creating virtual serial port in Fedora
I want to create a virtual serial port in Fedora. I'm using Java code to communicate over a serial port. I want to test this code with out any serial devices connected.
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447 views
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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1answer
148 views
Help accessing Beagle over serial with Minicom/GTKTerm
I am trying to access a brand new Beagle Board from Ubuntu or Mac over serial using the setup seen here: http://specialcomp.com/beagleboard/RevC1.htm
I got Minicom and GTKTerm installed on the Ubuntu ...
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2answers
351 views
How to switch between Linux virtual terminals over serial?
How do you switch between Linux virtual terminals over a serial terminal connection?
I'm trying to install Debian on a Beagleboard via the serial console. I'm using screen (screen /dev/ttyUSB0 ...
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1answer
568 views
How does RealTerm send Numbers
How does RealTerm send numbers? For some reason, when I enter a number under the "Send" tab to be sent over the serial line in RealTerm, it works, but inputting the same commands in PuTTY through the ...
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1answer
310 views
PuTTY Serial Baud Rate Change
Is it possible to change the baud rate once the terminal has already been opened in PuTTY? If so, how would I do this?
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1answer
614 views
I'm looking for serial port monitoring software
I need a serial port monitoring software that works on windows 7 64bit or GNU/Linux and supports at least RS-232. Bonus points are if it's free software or at least freeware. I just need to be able to ...
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1answer
150 views
OS X: log text from serial port
I have a text stream coming in on a USB-RS232 adapter. I want to pipe it to some Unix tools, to a file, whatever. What is the simplest way to do so? Does it really require third-party software?
OS X ...
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Xserver mess up with serial line
We use xserver, when we start them we lost communication on ttyS0 port. Does anybody have any idea ?
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2answers
157 views
New serial window in GNU Screen
I know that I can launch Screen as a serial port terminal from scratch. What I want to do is to create a new window inside an already running screen session as a serial terminal. so that I don't need ...
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1answer
306 views
How can I login (send text) with minicom?
I am attempting to login from a Linux client to a set top box running Linux via a USB to serial cable. When I power on the device, I can see the init messages scroll past, and I get to the login ...
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1answer
163 views
Turning on computer using communication port
I am working on something that would require a computer to be turned on "remotely" but still within reach in the same building. I did some reading about WOL (Wake On LAN) and would like to know if ...
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1answer
414 views
VirtualBox: 4 serial ports
Is there any way in virtual box to have more than 2 serial ports?
When I try to set a 3rd or 4th serial port I get "Argument slot is invalid. RT_ELEMENTS(mSerialPorts))". The documentation claims it ...
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2answers
147 views
Use Serial Port as Digital Out
Goal: Output a single bit from a program on my PC to a TTL circuit.
I know I can buy a digital I/O card, but I just want a single value.
Can I use one of the pins on the serial port as a single TTL ...
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3answers
140 views
USB to RS-232 Converter Power Option
I have an device that is interfaced with RS-232 that requires power on Pin 6 at 5V and Pin 5 as ground to power the device.
Is it possible to do this with an USB to RS-232 Converter?
If not, what ...
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4answers
163 views
Looking for Fast RS-232 or RS-485 Interface Cards for Windows
I have a module that is usually bundled with a master module, which we now want to use unbundled. The module uses an RS-485 interface. The problem is, by default, the module runs at 1.25 Megabaud, ...
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373 views
“mount” a serial port or USB or PS/2 or parallel port on a local machine over TCP/IP
let's assume I have two boxes, both running some (any) unix variant. I have root privileges on both boxes and they are networked together. I'm using A, the other is B.
I'd like to "mount" the ports ...
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1answer
107 views
How can I send data to the serial port from a Linux shell?
I need to find the linux way of running the following DOS commands:
MODE COM1: 9600,N,8,1,P
COPY FIRMWARE.COD COM1
Is this possible? I know COM1 in Linux is /dev/ttyS0 but that's about it.
How do ...
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2answers
158 views
Is there a limit to the number of USB to RS-232 ports my computer can support?
I am looking to get a whole bunch of digital output pins that I can directly control from my CPU and I am hoping to use a whole bunch of USB to serial ports to achieve this.
Assuming I am using a ...
