external port

Serial Port and Port: The serial port receives and sends one bit at a time, and the multiple data paths are sent or received simultaneously, and the port does not necessarily have a higher efficiency than the serial port; The name contains the meaning of the serial

The following is an example of Z-tek (USB2.0) to a serial adapter (model ZK-U03-2A): 1, according to the requirements of the installation of the adapter driver, "Device Manager/Port", you can find a "USB serial Port (COM4)", the following figure: 2, right click on "USB serial Port (COM4)", select "Properties", as shown: 3, select the "

A few days ago, the company has the use of the Android system through the Development Board to the needs of the clock machine statistics, for the siege lion needs to read and write the serial number of the clock machine on the Android platform, search for something on the internet after the discovery of Android serial on Google code Port API can be used, after the wall to get the source code discovery and demo, good good, I this post through the seria

The ping port function instance implemented by php and the phpping Port instance. Php-implemented ping port function instance. phpping Port instance this article describes the ping port function implemented by php. Share it with you for your reference. The specific implement

I read a lotArticleAnd writes are very simple (actually very simple :)). A detailed tutorial is provided. 1. Use vspd to connect two virtual serial ports on the PC. I connect com2 and com3. Click ADDR pair. 2. We can see that two virtual serial ports are connected together on virtual ports. 3. The virtual serial port is ready. First, you can directly enter the command for debugging. We open the Keil MDK and set it to the simulation m

SummaryToday, during the writing of the socket, during which I encountered viewing the status of a certain port, I then looked it up from the Internet and summarized it.ContentAs we all know, the port is not independent, it is dependent on the process. When a process is turned on, its corresponding port is turned on and the process shuts down, and the

In this guide, we will show you how to use the simple Netcat (NC) command to determine if the port on the remote host is accessible/open. Netcat (or NC) is a powerful and Easy-to-use program that can be used in Linux for anything related to TCP, UDP, or UNIX domain sockets. # yum Install NC [in Centos/rhel] # DNF Install NC [in Fedora 22+] $ sudo apt-get install [in In Debian/ubuntu] We can use it to open a TCP

Copyright NOTICE: This article is for bloggers original article, if need reprint please indicate source and author.This article by Xiao Li column original, reprint need to indicate the source: "http://blog.csdn.net/softwave/article/details/8907599"A recent project that requires Java to read a small pound of data in a pound room requires that Java be used to communicate with the serial port. Serial port Java

I am working on a plug-in recently.ProgramTo obtain data from other programs from the serial port, but the problem is that the serial port is exclusively used, that is, only one program can read or send data to the serial port. So how can I obtain the same serial port data from other programs without shutting down oth

PHP-made port sniffer--you can specify the website and port and return the sniff results. function Http_request ($server, $port) { $data = ""; $query = "head/http/1.0"; $fp = Fsockopen ($server, $port); if ($fp) { Fputs ($FP, $query. " Rnn "); while (!feof ($fp)) { $data. = Fread ($fp, 1000); } Fclose ($FP); } return $

Use the accelerator key win+r to open the Run window. Enter CMD return to open a command prompt window 1: View the port that is open for this machine, that is, the number of ports that have been occupied. Command: Netstat-an Partial results list: Proto Local Address Foreign TCP 0.0.0.0:135 0.0.0.0:0 Listening TCP 0.0.0.0:3473 0.0.0.0:0 Listening TCP 0.0.0.0:8009 0.0.0.0:0 Listening The local addresss corresponds to this column, ":" is the open