c# SerialPort使用时出现“已关闭 Safe handle”的错误我在开发SerialPort程序时出现了一个问题,在一段特殊的扫描代码的时候会出现“已关闭 Safe handle”的错误,很疑惑.我是通过线程对串口进行扫描的,原本我以为handle是指的线程,于是代码跟踪了半天,但也没发现线程有什么问题.于是把目光转移到SerialPort类上,写了一段测试代码: using System;using System.Threading;using System.IO.Ports; n

This is a tutorial on how to program the Serial Ports on your Linux box.Serial Ports are nice little interfaces on the PC which helps you to interface your embedded system projects using a minimum number of wires.In this tutorial we will write a smal

In this tutorial we will learn How to communicate with an external device like a microcontroller board or modem using the Serial port of a windows PC(Windows XP,7). The software is written using C language and communicates with the Serial Port using 

In this article, I will use three asynchronous conferencing--select, poll and epoll on serial port to transmit data between PC and Raspberry pi. Outline Character device file of serial port Naive serial communication Asynchronous conferencing Select

转自:http://digital.ni.com/public.nsf/allkb/29B079481C5ECE76862578810082394E How Can I Find Out What Is Using a Busy or Reserved Serial Port? Primary Software: Primary Software Version: 5.0.3Primary Software Fixed Version: N/ASecondary Software: Driver

Comm1.CommName := '//./' + Trim(combx_Port.Text); 目前串口大于20  用上面方法解决的 网上也有上面方法解决如下错误的. 若是您已会应用SPCOMM且涌现10个以上的串心题目 请改一下串心名 COM1.CommName='//./com18'; 便如许减'//./'就好了我也没有晓得甚么回事....... 比方 Comm1.CommName := '//./'+ComboBox1.Text; //./com18是win] 如果你已经会使用SPCO

ubuntu12.04使用USB转串口时出现权限不够问题,如下 Unable to open serial port /dev/ttyUSB0 权限不够 解决办法: 通过增加udev规则来实现.步骤如下:创建文件/etc/udev/rules.d/70-ttyusb.rules在文件内增加一行KERNEL=="ttyUSB[0-9]*", MODE="0666"重新插入USB转串口设备,普通用户就有权限访问了. 70-ttyusb.rules文件还有另一种写法,先用

If want to do iOS kernel debugging on A4 device, first you should install Virtual COM port (VCP) drivers. After has installed the driver on OS X Mavericks, plugin your device (for examle: iPod Touch 4, WiFi), then execute the following command: ls /d

Communication with ROS through USART Serial Port We always need to communicate with ROS through serial port as we have many devices like sensors, touch-screen, actuators to be controlled through USART serial protocol. After some investigation, I foun

https://www.acmesystems.it/socat This article illustrates how to realize a lan to serial gateway Remote unit On the remote unit install ser2net then add this line in /etc/ser2net.conf configuration file 2000:raw:600:/dev/ttyS1:115200 8DATABITS NONE 1

////combuad_recv.cpp #include <stdio.h> /*标准输入输出定义*/ #include <stdlib.h> /*标准函数库定义*/ #include <unistd.h> /*Unix 标准函数定义*/ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> /*文件控制定义*/ #include <termios.h&

串口数据监视工具 Serial Port Monitor可以在其它应用读写串口时监视串口数据, 很好用,但只有15天试用期.

本文出自:http://blog.csdn.net/svitter 引文出自:http://bbs.chinaunix.net/thread-775649-1-1.html 1.关闭服务 service 服务 stop netstat -ntlp kill -9 PID 2.使用两个方法 1. ps aux|grep port kill -9 PID 2. iptables -I INPUT -p tcp --dport 端口号 -j DROP 3.查看服务 grep 8080 /etc/ser

发送十六进制比较直观,可以在上位机中直接获取十六进制的数据,然后在在上位机上将十六进制HEX转换成BIN(二进制)或者DEC(十进制)就十分简单有效了. 下面是在Arduino上怎么演示直接发送16进制. 详细请参考官方说明: http://arduino.cc/en/Serial/Print 代码如下: char tmp[] = "hello world"; void setup() { Serial.begin(); } void loop() { { Serial.println

CommMonitor  串行端口监视精灵是用于RS232 / RS422 / RS485端口监控的专业强大的系统实用程序软件.CommMonitor监视显示,记录和分析系统中的所有串行端口活动.这是追踪应用程序或驱动程序开发,串行设备测试和优化等过程中可能出现的问题的理想方法.还提供过滤.搜索.数据导出和强大的数据拦截功能,可以将指定端口的数据流.控制流信息拦截并保存下来,供分析之用.如察看端口状态的变化(波特率.数据位.校验位.停止位),拦截上行.下行的数据,处理速度快,拦截效率高,并可以以

set echo(display characters which are sent) Line wrap        : press 'enter' to send '\r'(0x0D), go back to the beginning of a line New line mode : press 'enter' to send '\n'(0x0A),  newline

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSBC7\Ports\COM3COM4] “Port1”=”COM3” “Port2”=”COM4” https://www.eltima.com/wiki/user-guides/vspd/control-directly.html

1. Install putty 2. Insert serial-to-usb converter cable converter to NB or PC 3. check converter under ubuntu & execute putty 4. setting putty configuration

需要关闭imx6调试串口,用作普通的串口使用. 参考链接 http://blog.csdn.net/neiloid/article/details/7585876 http://www.cnblogs.com/helloworldtoyou/p/5437867.html 更改kernel中配置, make menuconfig Symbol: SERIAL_IMX_CONSOLE [=y] Type : boolean Prompt: Console on IMX serial port Def

原文网址:http://www.ifeegoo.com/android-turn-on-and-turn-off-bluetooth.html 摘要:Android 中打开和关闭 Bluetooth 的代码虽然并不困难,但是我们还是需要注意一些细节和异常情况,这样我们才能更好的优化我们的与 Bluetooth 相关的应用. Runtime EnvironmentOS: Windows 8.1IDE: ADT Bundle v22.6.2Device:Nexus 5 / Android 4.4.4

这是一份优秀的类文件,好多的地方值得我们学习,具体在多线程,事件,自定义消息,类的封装方面等等.Remon提供的串口类网址为:http://codeguru.earthweb.com/network/serialport.shtml,由于已经运行十几年了,原文的问答部分列出来这么多年来的问题,经过网友们的总结,补充和修改原来代码后,整理出一份相对比较完美的代码. 此外还附带一份小项目的源代码,它超越了串口助手,给人一种耳目一新的感觉.亮点如下: 1. 它解决了串口关闭时出现死锁不响应问题,可以直