serial concentrator

RS-232 serial port, serial port by bit to send and receive bytes. Although it is slower than byte parallel communication, the serial port can use one line to send data while the other line to receive data. Typically, the serial port is used for ASCII character transmission. Communication is completed using three wires:

LINUX serial port application developmentSerial Port OverviewThere are two basic data communication methods:Parallel Communication;Serial CommunicationSerial Communication is a commonly used computer interface, such as RS-232-C interface. This standard requires a db25-core pin connector or a DB9-core pin connector. The chip usually has UART Controller, which can work in interrupt (interrupt mode) or DMA (Di

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 computer sends control commands to the local serial port to control the local

The definition of serial port, please know for yourself.C # operation serial communication in. NET powerful class library, only three steps are required:1 Create2 Open3 Send/Receive1 Create:1 The required namespaces for serial communication are as follows:using System.IO.Ports; using System.IO;2 declared as a global variable because it is used globallyPrivate New

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. They use USB to expand the

When we learn the principles of the microcomputer, many people will have a big problem with some interface bus. These are some of the content contained in the serial port protocol. So in order to better understand some interface serial port protocol standards, we will give a detailed introduction to such problems. Serial Port protocol plug-in type and conversion

Serial Data acquisitionThis document describes how to obtain the serial port raw data and parse the raw data into data that can be processed or displayed.First, the serial port collection has many ways:1), MFC has a special control, direct programming acquisition, a control can only collect a serial port, and the

The last article to tell you about the serial port programming some of the basic knowledge. Today, we are going to introduce a simple example of serial port programming. This example can help you to have a general understanding of the basic knowledge of serial communication. The first is to look at the interface: A bit like a chat software, in fact you can thin

Label:In the actual work, will inevitably encounter serial number generation problem, the following is a simple sequence number generation function (1) Create a custom serial number configuration table as follows: --Custom Sequences Create TableS_autocode (PK1VARCHAR2( +)Primary Key, AtypeVARCHAR2( -) not NULL, ownerVARCHAR2(Ten) not NULL, InitcycleCHAR(1) not NULL, Cur_sernumVARCHAR2( -) not NULL, ZERO_FLG

In the initialization function, add:Todo:add Extra initialization hereM_bautosend=false; M_bautosend as a global variablem_ncycletime=1000;M_gpscom. Setcommport (1); Select COM1M_gpscom. Setinputmode (1); Input in binary modeM_gpscom. Setinbuffersize (1024); Setting the input buffer sizeM_gpscom. Setoutbuffersize (512); Setting the output buffer sizeM_gpscom. Setsettings ("9600,n,8,1"); Baud rate 115200, no checksum, 8 data bits, 1 stop bitsif (m_gpscom. Getportopen ())//If the

Transferred from: http://blog.163.com/smilexiao_11015461/blog/static/2122052182012102410399459/1. Insert the device U port into the PC2, input #lsmod first to see if this device can be detected, see if there is pl2303 word. If so, there is no need to reload the driver. Plus, if you have one, you better use DMESG | grep USB Lookup If you see:"Drivers/usb/serial/usb-serial.c:usb serial support registered for

Serial communication is a low level point-to-point technique for transmitting data between two devices (typically a relatively close distance). SERIES60 supports serial communication on infrared and Bluetooth. The center of the SERIES60 implementation is the serial Communication Server (serial communication Server, als