Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
Course 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
最近在阅读GPIO的驱动,发现GPIO好像和SPI有一些关系,但是不太理解.
2017-04-17 13:26:42 0 2 399
Course Introduction:The difference between SPI and UART is that: SPI is full-duplex, and UART is half-duplex; the SPI host provides a clock, and the UART device uses an independent clock; SPI transmits bit stream format, and UART transmits byte format; SPI usually requires 3-4 pins. Pins, UART requires 2-3 pins; SPI is faster, UART is slower; SPI implementation is complex, UART implementation is simple, suitable for different application scenarios.
2024-04-25 comment 0 391
Course Introduction:The SPI interface is a synchronous serial communication interface used for data transmission between microcontrollers and peripheral devices. It works in master-slave mode and uses clock lines, data input lines and data output lines. The SPI interface is simple, high-speed, and flexible, and is widely used in fields such as data acquisition, display, memory expansion, and communication.
2024-04-25 comment 0 482
Course Introduction:1: Introduction to the SPI mechanism. The full name of SPI is ServiceProviderInterface, which is a mechanism built into the JDK to dynamically load extension points. Through SPI technology, we can dynamically obtain the implementation class of the interface without creating it ourselves. This is not a special technology, just a design concept. 2: SPI principle JavaSPI is actually a dynamic loading mechanism implemented by a combination of interface-based programming + strategy mode + configuration files. There are often many different implementation solutions for various abstractions of system design. In object-oriented design, it is generally recommended that modules be programmed based on interfaces, and implementation classes should not be hard-coded between modules. Once the code involves specific implementation classes, it violates the principle of pluggability, such as
2023-05-17 comment 0 2143
Course Introduction:How to use PHP and SPI protocols for peripheral communication 1. Introduction In recent years, with the rapid development of Internet of Things technology, peripheral communication has become more and more important. Among them, the SPI (Serial Peripheral Interface) protocol, as a common peripheral communication protocol, is widely used in various embedded systems. This article will introduce how to use PHP language and SPI protocol for peripheral communication, and attach code examples. 2. Introduction to SPI protocol SPI (SerialPeripheralInterface) is a synchronous serial
2023-07-29 comment 0 1030
Course Introduction:Introduction SPI (ServiceProviderInterface) is a service provider discovery mechanism built into JDK. It can be used to enable framework extensions and replacement components. It is mainly used for development in frameworks. For example, Dubbo, Spring, Common-Logging, JDBC, etc. use the SPI mechanism. For The same interface is provided to different users using different implementations, thus improving the scalability of the framework. JavaSPI implements Java's built-in SPI and parses files named with the fully qualified name of the interface in the classPath and META-INF/services/ directories of the jar package through the java.util.ServiceLoader class.
2023-05-16 comment 0 516