serial port sniffer

Original URL: http://blog.csdn.net/liaoxinmeng/article/details/5004743First of all:1. Neither the terminal nor the console is the concept of personal computers, but the concept of a small, medium-sized mainframe computer shared by many people.A host, even a lot of terminals, the terminal for the host to provide a human-computer interface, everyone through the terminal using the host resources. The terminal has two kinds of character dumb terminal and graphic terminal.Console is another human int

The serial port of STM32F407 uses DMA to send and receive data, and stm32f407dma The serial port of STM32F407 uses DMA to send and receive data For more information, see http://blog.csdn.net/jdh99, :jdh. Environment: HOST: WIN8 Development Environment: MDK5.13 Mcu: stm32f407VGT6 Note: Previously, we used STM32F103 t

Commax v2.3Serial Port ing master Software Description: Commax is a professional RS232/422/485 serial port and network TCP/IP communication for data conversion software. The local serial port data is transmitted to the remote computer through the network, and the remote

[RK_2014_0904] test whether the serial port works normally in Linux. rk_2014_0904linux I. Test Environment PC1: Win8, run serial port debugging tool: USR-TCP232-Test.exe; PC2: Ubuntu14.04; "USB to serial port" is used between PC1

Understanding Serial Communications There are many kinds of serial communication protocols, such as rs232,rs485,rs422, even the popular USB is serial communication protocol. And the application of serial communication technology is everywhere. Perhaps everybody sees most is the computer

--------------------------------------Editor:yeungchiDate:2016/3/29Describe: small ticket printer garbled problemArticle content:First, the parameter explanationSecond, serial connection printer setup case--------------------------------------Serial port is a very common protocol for device communication;First, the parameter explanationBaud rate This is a paramet

1. API description In Win32 API, the serial port uses the file access method, and its operation API is basically the same as the file operation API. Open serial port In Win32, the API function used to open the serial port

Abstract: This paper discusses how to use the serial port with FIFO to reduce the number of received interrupts, and gives the frame packing method through a custom communication protocol format, and then introduces a special serial port data sending method, which can improve the response speed of the system in case of

Two independent asynchronous serial I/O ports are provided for the UART unit of the high-efficiency FIFO serial port based on the implementation of b0x (clock frequency: 60 MHz) on the ARM7, each communication port can work in the interrupt or DMA mode. That is, UART can generate an internal interrupt request or DMA re

Point:1. Serial Port and comport are physical interfaces (hardware ). While TTL, RS-232, RS-485 refers to the level standard (electrical signal ). 2. Generally, only Gnd RX Tx is connected to the device. Do not connect to the VCC or + 3.3v power cord to avoid power supply conflicts with the target device. 3. The pl2303 and cp2102 chips are USB-to-TTL serial ports

Arm Embedded systems often encounter multiple serial port application requirements, and arm chip system native UART number is limited, so it is necessary to extend more interfaces through other high-speed bus. In this paper, Toradex based on the NXPI.MX6D/6Q processor Apalis i.mx6d/q arm computer module, the Linux system through the Exar scheme to expand the 8-channel s