Questions tagged [serial-port]
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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Downloaded a FTDI virtual com port driver for windows 10/11 to set up a go board for fpga learning, but I can't access the port on tera term or DM
I tried updating drivers and changing three different cables (micro USB cable), I tried doing the same thing to my other laptop, but no luck.
I also tried going back to Windows 10, enabling hidden ...
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Minicom enable echo by default and set color for local echo
To enable the echo with Minicom I use the combination Ctrl+A E, I was wondering if there is a way to activate the echo automatically without having to use this key combination every time?
Also is ...
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How do I enable serial access to a computer (not from a computer)?
I have a Linux server (on Desktop hw) running Ubuntu Server (headless). Its tucked away and hard to access, once a year an update or something else create a problem where I can no longer ssh into it. ...
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How to have one process listen to a serial port that another process is writing to?
I have a process (in bash) that writes data to a serial port. I would like to see that data, but instead of hooking up an Arduino and showing the data on a display, I thought it would be easier to ...
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How to connect to a computer with db25 without screen?
I have and old computer and I need to install Ubuntu server on it but I don't have a VGA monitor, what I do have is access to a db25 to usb cable and a laptop with SSH client. Is there any way I can ...
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RS232 cannot be discovered as /dev/ttyS* or /dev/ttyUSB* on ubuntu of wsl 2
I'm having problem to get serial connection using RS232 (to USB) and picocom of wsl. From Windows I can see that my RS232 is using COM24 and from lsub on wsl I can also see my RS232. However, if I do ...
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Is it it possible to send an A/V receiver commands via a USB cable to a 3.5mm jack on the receiver? [closed]
I have a Linux computer (Ubuntu 20.04.5) and a Harman Kardon AVR51 A/V receiver which has a 3.5mm input jack for IR remote control.
My question is, if it is possible to send some kind of command from ...
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Does anyone know how to receive data from a 1d barcode scanner?
I am using a yhd-M300C 1D barcode scanner, it connects by a usb cable but it comes with no drivers so the computer doesn't recognize it. I am using Ubuntu 22.04
The scanner comes with a bunch of code ...
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Putty setting for different colors of text transmitted and received
I'm using Putty as a terminal emulator to control some equipment. The protocol is to send a command and receive a reply, each terminated by a CR/LF. The format of the command and reply are nearly ...
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Send a batch of commands to a serial device from Windows 10. Then receive and save the results
I have a PuTTY config called COM12_9600 that I can use in Win10.
I can manually run a series of commands to a particular serial device and watch the results return (these are about 10 lines each).
e.g....
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Piping data from ethernet to serial and back to ethernet doesn't work
CONCEPT VISUALIZED
I'm trying to establish a bidirectional communication where ethernet UDP packets enter a linux system (suppose a Raspberry pi) from eth0 interface and piped into the UART hardware ...
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Which Linux rescue disk has out the box serial console support?
We have a RHEL8 machine in a different city that needs to be rescued. The machine is connected to a serial console, and we can successfully access the BIOS and choose a disk to boot from.
Our problem ...
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Terminal server for accessing serial consoles behind USB FDTI-based interfaces
I've long used terminal servers (like this) to access the serial consoles of various devices like switches and routers.
These terminal servers can be configured to make a serial console available over ...
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How to prevent Putty from sending LF when local line editing mode is ON?
I've got a simple echo code on my MCU that does the following:
Receive single character from PuTTY via serial
Send the same character to PuTTY twice
Local Line editing and Local Echo are ON.
The ...
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An application on a computer emits data to a COM port. What are my options to read this data on a different computer?
An external system (not ours) can be configured to emit serial data to a COM port on a Windows computer. What we want to do is read the data on another computer. This computer only has USB ports ...
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Minicom showing garbage characters
I am developing a program for an IP camera and when I tried connecting my device's serial console through minicom, I got the following prints.
~ # ls ...
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Overflow from serial port in Wine/Virtualbox?
I'm trying to read the data saved on a minimax B4 sensor connected to my Ubuntu 20.04 machine using a serial port via USB (mounted as /dev/ttyACM0). The program reading the data is an old Windows one ...
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Serial device not working when plugged before boot
I'm working with a serial device that I need to read from an embedded linux arm64 board (px30 core) running a basing debian. It's a dual device which spawns /dev/ttyUSB0 and /dev/ttyUSB1.
root@user:~# ...
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How to create a serial over LAN server under Linux, using virtual ports
I am able to connect to serial over LAN devices (like USRIOT-TCP-232-302), as client, from my linux server, using socat and it works pretty well.
I now would like to have devices connecting to the ...
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Attempting to tap a serial connection between hardware and software, but application takes control over the serial port
We're trying to monitor the serial messages sent/recieved between a hardware device and a piece of software, however when trying to monitor the device, the software is taking control of the port and ...
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WSL2 causing COM ports on Windows 11 to act weird
I'm experiencing some very, very weird things with my serial ports. I own a few tools that I use for various things, such as measuring the power of a device (using a tool called Power Profiler Kit II)....
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Can't change baud rate of ttyUSB0 in Ubuntu 18.04 (galiumos)
I wasn't able to use an app with the diagnostic interface until I changed ttyUSB0 baud rate to 9600 with the command :
sudo stty -F /dev/ttyUSB0 9600
and after restarting app it wasn't working again ...
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Where can I find a TeraTerm User Guide?
I am using TeraTerm for terminal emulation. I'd like to create a link on my Win10 desktop, to start TT with specific connection params for a COM port.
As a reference, I have command lines that open a ...
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Windows 10 Bluetooth virtual serial comm port is missing
Question: How to get linked Bluetooth serial Commport installed?
For communication a serial comm port is needed.
But on some computers, mainly workstations, there is no linked Bluetooth "COM &...
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Why some USB Serial converters work and others don't on specific hardware?
I went online and brought a pack of the cheapest USB to Serial adaptor, put TX on RX and RX on TX and was able to communicate between the 2 ports without any issue.
So I plug the thing in a device ...
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Force bash as shell used for serial console login
I am running Ubuntu Server 20.04 headlessly, and typically remote into it via SSH. However, it is also connected via serial RS232 to a terminal server (a Digi CM 16) for kernel console logging and as ...
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How to determine which physical port is connected to which tty path?
I have a device (An NVIDIA Jetson Nano) with four USB ports. How can I tell which /dev/tty* locations are mapped to each of these?
I have gone through many similar questions here and on askUbuntu. I ...
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Conecting a controller's RJ45 port to laptop's USB port
I have a CNC controller that uses RJ45 socket as a input for reciving instructions from my laptop. I use a USB to RS232 adapter and then RS232 to RJ45 adapter to finally connect my controller using a ...
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How to install Drivers in Linux
I had fixed a new serial port to my workstation and following the instructions to install the driver for that card, the instructions says:
<1>-copy pci60806a.o to /usr/sbin
<2>-Add /usr/...
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zmodem crashing with large files over TCP
I'm attempting to send files to a Raspberry Pi Compute Module 3+ from a Windows 10 PC using a UART-WiFi bridge; the Pi is connected to the UART side, the PC connects to the bridge via WiFi. The bridge ...
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If SMB can share serial ports, does that apply to USB Ports as well?
I was just taking a course and they said something I never heard of, that serial ports can be shared over SMB.
That sounded kind of strange to me, but I guess I've never had a need to share a serial ...
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socat resetting USB port on open
I'm having an issue with socat, and it is probably just in my environment.
I need to have a USB serial port redirected to a TCP port. I use the following and it works perfectly:
socat TCP-LISTEN:4444,...
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Putty cannot register anything i type in, serial connection issue
I'm having trouble using putty to set up a serial connection using my 16 port GSM modem. I am using the correct baud rate, data bits and stop bits for my modem.
Just for reference I connected my GSM ...
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Mirroring USB data to multiple computers/hosts simultaneously
I want to mirror the data sent to (and/or from) a USB device to multiple host computers at the same time (i.e no physical switches to select one host or the other). Here are two scenarios to describe ...
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Configuring Workstation For Serial Port Communication
I am trying to access the Siemens RuggedComm 900W ROS (operating system associated with the Ethernet switch) by establishing a serial port connection.
I have followed the instructions described in the ...
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Is there a way to know which USB device file (/dev/ttyUSB0) is related to a particular interface (wwan0)
The title pretty much says it all, but here is my scenario in case it's relevant:
I'm trying to automate bringing a USB modem online when it's first plugged in. With my hardware and cellular service, ...
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How to fix strange usb serial problems in windows 10?
I have several issues with serial ports in windows 10. The first one is
"ie_Open - device already open" in real term, but I also can't open the port in any program.
Even uninstalling the ...
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How to route all Ethernet traffic to a Serial port on a Linux system?
How can I route all Ethernet traffic on a Linux system to a Serial port and the opposite?
I want to convert from the first architecture to the second one, as shown in the picture:
picture
I monitored ...
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Different serial ports get the same COM identifier in Windows
We're using Windows 10 for testing several different devices, connected to several USB hubs. Some of these have the same VID/PID, some different. There are a lot of devices being plugged in and out, ...
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Windows 10: Two serial USB devices were given an identical port number
We are developing a desktop application under Windows 10 x64 v2004 to control virtual USB COM ports where the devices will be connected/disconnected several times during operation:
While connecting ...
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Why does insmod of a driver generate a ttyF device?
I've recently had the case of compilating a driver for a PCIe to Serial Adapter. (more specifically, the AX99100 chipset on that card)
For a quick test, I didn't really install the driver, but just ...
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Serial port incompatible with monitor
This question is similar to:
Will a VGA monitor work if connected to 9-pin serial port?
Can this workstation be used with modern serial monitors?
The blue serial port has a box with "10101" ...
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What do IRQ, RTS, DTR & DSR mean here?
Got the below output on my linux. What do TX, RX, IRQ, RTS, DTR, DSR mean here in this context. I have read about Data Terminal Ready & Request to Send, but need help in understanding them in the ...
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Logilink RS232c USB-to-Serial converter software
I have a device with RS232 that works with a PCI board, however when I install a Logilink USB-to-Serial converter, I stop receiving data from my device. How do I resolve this?
PCI Board configuration:...
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USB to COM for WIndows XP
Basically, I recently purchased a customer display for my EPOS till which runs on Windows XP (Yes I know XP Is old but it is running some legacy software). Anyways, in the Epson OPOS my display ...
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COM ports not refreshed after editing registry
I have a couple of FTDI devices that I need to change the COM port names of; following:
https://www.ftdichip.com/Support/Documents/AppNotes/AN_132_Re-Assigning_COM_Port_Numbers_Using_Registry.pdf
...
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How to view logs in uboot?
I have a linux device running U-Boot and booting Ubuntu Core 18 that is having problems with its serial interface and networking. Because of these problems, I can't configure it via ssh or minicom. I ...
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COM port in Windows 10
I understand that the COM port is a serial communication port inside a computer.
But in my windows 10 laptop, I don't see any COM port connected.
If I go to the control panel -> Device manager, I ...
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Bash read line from ttyUSB gives sometimes corrupted characters
I want to read line by line from external device (ttyUSB) over serial on my Ubuntu PC.
I have following script:
while true;
do
read line < /dev/ttyUSB0
echo $line
done
The problem is ...
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How Serial Port Loop Back Test work internally/underneath?
When doing a Serial Loopback Test on a USB Port (assume COM1) using Hyperterminal, you can verify that the test passed if what you type on the keyboard is displayed on the Terminal (although it's not ...
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