These two days need to develop a program to implement the GSM at command into CDMA at the command set (in order to tie in with another GSM at command of the third party SMS program access to our CDMA Modem), considered, decided to use the virtual serial port of the way to achieve, Is that we develop a gateway program control modem, while in the system simulation of a new
Using a serial port terminal as the Linux console, you can remove the need for additional keyboards, display cards, and monitors, and use the Linux host as an embedded black box for any purpose. It is not difficult to connect a serial port terminal to a computer's serial
Author: gauss (posting) Source: www.linuxforum.net
Using a serial port terminal as the Linux console, you can remove the need for additional keyboards, display cards, and monitors, and use the Linux host as an embedded black box for any purpose. It is not difficult to connect a serial port terminal to a computer's
The Hal Library is too inflexible to use
HAL Serial port interrupt receive
The HAL Library is too inflexible to use, too restrictive, and then, if you have time, you will use the registers and the HAL library to mix operations.If the use of serial port interrupt reception, after receiving data, the library did a clos
I will talk about two tips, one about monitoring switch port traffic and the other about store value.
1. Monitor switch port traffic
Switch monitoring document in the production environment on the Internet. Therefore, it is complete, and a key knowledge is interspersed in the middle. Zabbix is still innocent .!!! In this demonstration, I used the production environment
In the actual development, often encountered the serial port of the default output IO port is occupied by other modules, so we have to use the serial port IO port mapping function, refers to the original implementation of the func
When talking about serial port parallel port, you can always think of some computer wiring. Yes, these serial ports are all related to some computer buses and plug-in cables. All these lines are managed through protocols. So today we will introduce the serial
Find a broken circuit board under the table today see a chip GM8125, the main function of this chip is to expand the serial port.GM8125 can be a full-duplex standard serial port expansion into 5 standard serial port, and through the external pin to control the
Connect the two serial ports with crossover lines. Assume that the two serial ports are/dev/ttys0 and/dev/ttys1 respectively, you can directly execute Cat/dev/ttys0 in a shell, then execute echo "test. ">/dev/ttys1. If both serial ports are good, executing CAT/dev/ttys0 will output 'test. "If not, you can use CAT/proc/interrupts to check whether there is any inte
First, overview:The Usart is a universal synchronous asynchronous transceiver for flexible full-duplex data exchange with external devices, which supports a variety of communication modes and provides multiple baud rates via the fractional baud rate generator.Second, serial IO:For stm32f407 there are 6 serial ports, for each serial
Solution to LINUX serial port programming
Articles on Serial Port Programming in Linux are everywhere on the Internet, but most of them are from one article, and they all write some basic operations, such as controlling the Serial Port
Tags: declaring article sed analog serial port processing simulation another Erro preCopyright NOTICE: This article is for Bo Master original article, welcome reprint, and please indicate the source. Contact information: [Email protected] Many instruments/devices provide data acquisition interface, many of which are serial or network MODBUS/TCP protocol. The
Note: use virtual serial portAttachment download(115 network disks have also been uploaded)
I tested a serial communication software under Windows 7 over the past few days. I had no serial port in my notebook, so I had to find a virtual serial
Article Title: how to set up a serial port terminal in Red Hat Enterprise Linux ?. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
In some cases, you need to configure the serial port
I. Overview:
The Usart is a universal synchronous asynchronous transceiver for flexible full-duplex data exchange with external devices, which supports a variety of communication modes and provides multiple baud rates via the fractional baud rate generator.
Second, serial IO:
For stm32f407 there are 6 serial ports, for each serial
In industry control, industrial computer (generally based on Windows platform) often need to communicate with intelligent instruments through the serial port. Serial communication is convenient and easy to use and widely used.
Under normal circumstances, industrial control computer and the intelligent instruments through the RS485 bus communication. RS485 commun
There are two ports that can be controlled for serial blocking (simultaneous control of Read and write): One is the opening of the serial port, whether the open function with O_ndelay, the second one can be opened after the serial port through the FCNTL () function to contro
After returning more than 1000 posts and judging nearly papers, I took a long breath.
Recently, the serial port solution has finally been finalized, and it will soon end. Otherwise, it will take a lot of time and delay is the devil.
I found a code for reference.
# Include # Include # Include # Include # Include # Include # Define rxd 0 // receive# Define txd 0 // send# Define LSB 0 // The baud rate is adjus
CentOS installation and configuration of minicom (serial port to USB) 1. install minicom and the file transfer tool sudoyuminstallminicomlrzsz2. check whether your computer supports usb-to-serial communication before using the serial port. If the following words appear, OK i
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