linux serial communication reading information

In these two days, we need to do a serial communication to receive the information transmitted from peripheral devices. Many programs on the Internet are more complex. We have written a simple and easy program. The main process is: open serial port - > initialization - > circular reading. The code is as follows: #include & ...

Posted by mb81 on Sun, 08 Dec 2019 05:25:13 +0100

CMake install grpc to generate gRPCTargets.cmake file

The following are the installation statements: cd grpc_folder git submodule update --init cmake .. make -j 4 sudo make install However, when writing a program that depends on gRPC, it is found that the CMake file of gRPC cannot be called. The error prompt is as follows: include could not find load file: /usr/local/lib/cmake/grpc/gRPCTarg ...

Posted by Vertical3 on Wed, 04 Dec 2019 09:41:09 +0100

MySQL-8.0 source package installation

1) install Mysql database [root@localhost ~]# rpm -q mysql mysql-server Package mysql is not installed Package MySQL server is not installed [root@localhost ~]# yum -y install ncurses-devel [root@localhost ~]# rpm -q ncurses-devel ncurses-devel-5.9-14.20130511.el7_4.x86_64 Install configuration tool cmake [root@localhost ~]# tar xf cmak ...

Posted by tulleh on Tue, 03 Dec 2019 17:14:09 +0100

MySQL 5.6 source compilation and installation

Preface This article is suitable for the scenarios where mysql needs debugging or mysql database is installed through source code on the localization platform. Although the title indicates mysql version 5.6, version 5.7 is also basically applicable, but the compilation parameters of cmake are slightly different from those of initializing the da ...

Posted by jcarver on Thu, 28 Nov 2019 08:03:49 +0100

kde Plasmoid Applet Development

Links to the original text: https://my.oschina.net/fuyajun1983cn/blog/263829 abstract The plasmoid will contain a text box and buttons.   Code . desktop file Each plasmoid nee ...

Posted by Ree on Tue, 17 Sep 2019 11:52:24 +0200

Visual SLAM 14 Reading Programming Notes Chapter12 Loop Detection

Chapter 12 loop detection Word bag model (BoW) Dictionaries Dictionary structure Practice: Creating Dictionaries Computation of Similarity Theoretic part Practice: Similarity Computation Processing of similarity score Key Frame Processing Verif ...

Posted by bassguru on Wed, 28 Aug 2019 14:40:58 +0200

CMake Introduction - 04 - Custom Compilation Options

work environment System: macOS Mojave 10.14.6 CMake: Version 3.15.0-rc4 Hello,World! - Custom compilation options CMake allows you to add compilation options to your project, so that you can choose the most appropriate compilation solution based on the user's environment and needs. For example, you can set the MathFunctions library as an opti ...

Posted by Zyx on Fri, 23 Aug 2019 11:57:36 +0200

Install opencv4.1.1 under Ubuntu 16.04 (learn from many articles, climb some pits) (001)

Install opencv4.1.1 under Ubuntu 16.04 (learn from many articles, climb a few pits) Download First go to github to download the corresponding opencv version and opencv_contrib version. I downloaded opencv 4.1.1, so contrib also needs to download ...

Posted by jwilh on Thu, 22 Aug 2019 05:33:00 +0200

OpenCV+Contrib+CUDA configuration under WINDOWS (CUDA10.1,VS2017,opencv3.4.5)

After two days, we finally got it, Big Head!! First used VS2019, compiled four or five times has been unsuccessful, angry, uninstall VS2019, CUDA, reinstall VS2017, CUDA, and then a success, is so amazing! Important Reference Articles: Configuration process 1. Install VS2017 first, you must instal ...

Posted by HTF on Sat, 10 Aug 2019 16:08:29 +0200

Android NDK develops the application of two parts (2) (incremental updates are the same)

Catalog Android NDK Develops Two Songs (1) The First Knowledge (JNI General Knowledge and NDK Configuration)Android NDK develops the application of two parts (2) (incremental updates are the same) Preface A previous blog about JNI and NDK on Eclipse Android JNI and Android NDK Literacy Now let's start to study NDK development in detail on the ...

Posted by AJReading on Mon, 15 Jul 2019 22:28:39 +0200