Serial stands for doing things sequentially, one bit at a time.

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59
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11answers
8k views

How do I Connect a 30yr-old Tandy 1400LT laptop to the internet?

Just for the fun of it, I want to get an old Tandy 1400LT laptop: NEC V20 (Intel 8088 equivalent) 640 KB RAM 9'' CGA backlit monochrome display two 3,5'' 720KB DD floppy drives RS-232C serial port ...
6
votes
4answers
15k views

Is there a distinct advantage that a PS2 port has over a serial/USB port?

Silly question perhaps ... I'm told that PS2 technology dates back to the early 1990's or thereabouts. By and large, motherboard manufacturers still support PS2 technology/ports instead of providing ...
6
votes
6answers
4k views

Laptop with internal serial port in 2009 (and 2010) [closed]

Are there any computer vendors (like Dell, Lenovo, or..) that still sell laptops with an internal serial port? We are using several modem and other kind of box at work that have to be used (and/or ...
6
votes
2answers
17k views

Display Hex in PuTTY for Serial

Does anyone know if there is a way to get PuTTY to show the hex values of what it's receiving over a serial connection instead of characters?
4
votes
3answers
1k views

What does opening a serial port do?

What does opening the standard PC serial port do, in electrical terms (i.e. what voltages on which pins)? For example, the ancient VB6 program which controls an apparatus I am tasked with maintaining ...
4
votes
2answers
1k views

Is serial RJ45 to USB a standard?

I can't find any resellers here in Sweden for the RJ45 to USB cable from Current Cost. Are such RJ45 to USB cables covered by a standard so that I could buy one from another vendor? It would also be ...
4
votes
2answers
588 views

How to enable and set Event Characters for FTDI drivers?

When sending only few bits of data via FTDI USB-Serial cable to the PC, you have to wait for one of the following conditions to occur before you get your data according to FTDI's AN232B-04, Data ...
4
votes
2answers
4k views

Cleaning up Windows XP serial ports

I have been using USB-to-serial port converters and have not been careful to plug them into -exactly- the same USB port every time. What is the best (and safest) method to clean up the giant mess of ...
4
votes
0answers
291 views

Make USB virtual COM device persistent through reboots

EDIT: Having rethought the issue, perhaps my question can be summarized like this: Is there an existing COM terminal type program that will automatically detect when a COM port becomes unavailable and ...
3
votes
1answer
966 views

Internet Connection Sharing via SLIP

I'm trying to get my Amiga 2000 online with a serial cable connected to a PC running Windows XP. I'm following these instructions, which glance over how exactly to configure Internet Connection ...
3
votes
1answer
2k views

ubuntu libvirt serial console requires ttyS0 restart to connect?

I'm attempting to configure serial access from my libvirt host to one of its guests. I've configured the device on the guest and started it: jsharpe@sel-app1:~$ cat /etc/init/ttyS0.conf # ttyS0 - ...
3
votes
2answers
2k views

Skipping serial prompt installing custom unattended Windows Seven DVD and getting OEM key instead

I'm currently doing my first custom unattended Windows Seven DVD creation. I used WAIK with a retail Windows Seven DVD and created a "AutoUnattend.xml" file thanks to WSIM. Aiming to have a ...
3
votes
1answer
139 views

Can I set up a COM Port that Connects via TCP/IP?

I have an RS232 device connected to a Digi PortServer on my network. I can telnet to the Digi's IP and port number to communicate with that RS232 device. I have a Windows application that knows how ...
3
votes
1answer
79 views

Quickly write byte to Bluetooth dongle's serial port when webpage loads

I have a USB Bluetooth dongle mounted (?) as /dev/rfcomm0, and when I navigate to my local IP address from another device on my network in a browser, I want it to write a 't' to the serial port so ...
3
votes
0answers
243 views

Accept print jobs from serial port, spool to USB printer

I've got a USB printer (HP LaserJet 1018) connected to my Windows 7 desktop. I also have a USB infrared adapter (Actisys ACT-IR224UN-Li) which presents itself as a raw serial port, currently COM3. ...
3
votes
0answers
659 views

USB-RS232 serial connection stalls

As a fan of gadgets sometimes I get carried away and this time I bought a Neato XV-11 vacuum bot (which by the way works pretty good). Now there seems to be a firmware upgrade for the device that I ...
2
votes
2answers
14k views

how to reset /dev/ttyS0

I'm trying to connect to a Khepera robot using serial interface (running Scientific Linux 6.1) I used the command screen /dev/ttyS0 to communicate which worked OK, but then I wanted to close it and ...
2
votes
2answers
2k views

Using a legal WindowsXp key with a different Windows XP disk

I'm trying to reinstall WindowsXp on a Acer PC of a friend of mine. Problem here is, it has a legal installation of WindowsXp, but the re-installation disk is nowhere to b found. I have a legal copy ...
2
votes
1answer
4k views

Sharing a serial port between two processes

As it is not possible to directly share a serial port between two processes using Linux, I am looking for another way to achieve this, I have heard about socat but could not find a concrete example of ...
2
votes
0answers
43 views

Nullmodem connection performance

I want to transfer 118 MiB data from an old Windows 95 PC to a laptop running Windows 95 and 2000 in dual boot. The computers do not have an Ethernet card and I do not have a second computer where ...
2
votes
1answer
840 views

Windows 7 PC - disable sending data to com ports at bootup

We have a Windows 7 pc connected via com 1 to a scale head. Windows 7 outputs data at boot up to the com port and scambles the scale head's configuration which has to be re-configured. We have ...
2
votes
2answers
464 views

How do I determine a USB memory stick's serial number in Cygwin?

I already know that within windows, you can get a USB memory drive's Volume Serial Number by doing dir <drive_letter>:, where <drive_letter> is the drive letter of the USB drive. I also ...
2
votes
0answers
51 views

Picking right serial device

I have several identical USB to serial port adapters on my Fedora FC12 server. Each time I boot, the devices seem to change devices names (/dev/ttyUSBn). Now I will assume that the bus and device ...
2
votes
1answer
914 views

A fake COM port on Windows XP?

I have a win32 program that communicates via serial port (RS-232 / EIA-232 / COM). I would like to intercept redirect that communication without installing a virtual COM port (filter?) driver like ...
2
votes
0answers
430 views

Boot messages on both VGA and serial console

I use RHEL6 (with GRUB and upstart from Ubuntu) and want to put boot messages on my normal VGA console as well on serial port. I got GRUB to put messages on one of them, but not on both at same time. ...
1
vote
2answers
4k views

GPS detected as serial mouse

I'm not sure if this question is in the right stackexchange site because it's a mix of programming and hardware. Admin, feel free to move it to another stackexchange site. Here is the problem: I've ...
1
vote
1answer
229 views

Computer Serial Number - Secret? [closed]

Would there be any reason not to share once computer serial? Additionally same question regarding a battery serial? I am developing an online interface in combination with a little daemon running on ...
1
vote
1answer
4k views

Terminal client which allows sending raw bytes?

Is there an application like putty, that would allow me to type in raw bytes to send over serial?
1
vote
3answers
390 views

Mystery serial device on Windows

Arduino's IDE is telling me that I have something connected to serial port COM3. I can't find anything that says COM3 in Device Manager. Is there any way to figure out what it is that's connected to ...
1
vote
2answers
1k views

USB to Serial adapter/cable Windows/Mac/Linux [closed]

I'm looking to get a USB to Serial cable for my Mac/Win/Linux preferably small in size and without unnecessary software installations. I've had one a while ago, it would only work with Windows. On my ...
1
vote
1answer
205 views

Fix a brick router with Arduino (usb-to-serial adapter)

I need to test if my USB to serial adapter is working correctly. I've read somewhere about shorcircuiting RX and DX pins so that to get responde is putty. Problem is i'm not used with putty, so what ...
1
vote
1answer
620 views

Windows 8 strange files appearing on hard drive

I recently installed a copy of Windows 8 on my machine and about a week ago, I noticed strange files on my hard drive This file is currently located within my C:\ volume: ...
1
vote
1answer
2k views

Windows 7 CDC-232 Drivers Issues

This is the single most infuriating issue I have with Windows ever since XP. I recently built a new system and bought Windows 7 32bit. I am an electrical engineering student and I have a whole host ...
1
vote
2answers
432 views

How can I get a device with parallel interface to work on my laptop?

I have performed a product search for USB-to-parallel and ExpressCard-to-parallel adapters but when I read the reviews everyone complains that only work with printers. Where can I get an adapter ...
1
vote
2answers
445 views

How to send from my Z88 to my PC

I've got a Cambridge Z88 that I want to get working with my PC. Around 6 years ago - in 2004 - I made heavy use of my Z88 to do a whole bunch of writing on the train while commuting to and from work. ...
1
vote
1answer
1k views

Snow Leopard Compatible Drivers for Moschip MCS7720 USB-to-Serial Controller

We are using Cables Unlimited USB-2925 USB-to-Dual-DB9 serial cables, which use the Moschip MCS7720 controller. We have downloaded the newest driver from http://www.moschip.com/mcs7720.php, but that ...
1
vote
1answer
15 views

Using strace, how do I use it to get the network and serial calls

I have a python program that runs in the background, what I need to know for debugging purposing is that I need to see what calls it is send and receiving for serial, network and to stdout. I know ...
1
vote
1answer
149 views

Print TTY Stream to Terminal

I have a usb device. The driver for said devices sets up a ttyUSB0 stream for interfacing with the device. I am trying to understand how the data from this device is formatted. Is it possible to ...
1
vote
1answer
131 views

With Putty how do you make it act like windows cmd prompt with up arrow presses?

With Putty I would like to be able to press the up key to cycle through previous commands like Windows cmd prompt. Is there a way to accomplish this with Putty windows on a serial connection? If not, ...
1
vote
1answer
32 views

Login prompt on serial or any network is comes from which init script?

Login prompt on serial or any network is comes from which init script? My Embedded system is running with Linux 2.36 and default file system of ti814x. In my scenario, I want to verify /etc/passwd ...
1
vote
2answers
42 views

Serial cable gender

What is the gender standard of a serial connection? Seems that all computer's serial ports are male, but it is ambiguous the peripheral gender... I see printers with female DB9 connectort and also ...
1
vote
1answer
2k views

How to connect to Cisco W3550 with FreeBSD

There is a pfsense 2.0.1 (FreeBSD) and the command cu for access to the serial console, there is a Cisco W3550 attached but I can't get a connection. I try following Command: cu /dev/cuau0 -speed ...
1
vote
1answer
439 views

Filtering serial port io

I am currently working on a project where I communicate with hardware via a com port on its respective pc(win xp or 7) It is a fairly large project and sifting through the log file can be a bit of ...
1
vote
1answer
2k views

Can't communicate using PuTTY, but can with Termite

I'm trying to establish a serial connection to a peripheral from my PC's RS-232 port. Pretty simple stuff, and I've had not trouble doing it with countless peripherals before. And yet when I configure ...
1
vote
1answer
128 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 ...
1
vote
2answers
5k views

Linux comand line program, serial (COM port) transmistion, Hex

So I need a program that I can run on embedded linux (OpenWRT 8.09), via command line, I need to be able to transmit 8N1, i need to transmit in HEX (not ascii,) and preferaby also in decimal. As far ...
1
vote
3answers
60 views

Serial Terminal with custom colors

Looked around but I can't seem to find a serial terminal program that has ability to custom color lines according to certain symbols found in received lines. For example I would like to see 'ERROR: ...
1
vote
0answers
788 views

connect to a serial device via TCP socket

My setup is this: serial device ttyUSB0 connected to laptop A software that opens TCP socket to listen and write to, also runs on laptop A (linux) My goal is to pipe data from/to serial device ...
1
vote
0answers
57 views

grub2 with serial backup

I just setup a headless server. I would like to administrate this via serial, but I won't always have a serial connection plugged in. If I configure GRUB_TERMINAL="console serial", grub2 will not ...
1
vote
0answers
215 views

Android Development - Use of RealTerm or other program to directly manipulate and monitor radio/modem to debug Android Telephony [closed]

I and others are desperately trying to port Android 4/ICS/JB/CM10.1 from the LG Optimus 2X/P990 to the LG G2X/P999 cell phone but we haven't been able to get the phone's Qualcomm mdm6600 radio/modem ...