PICSingle Chip Microcomputer System Architecture:
The system architecture is shown in. There are two main modules: PC and Data Collection System Development Board. The two modules are connected through two main lines: one is that the PC is
Interrupt (interrupted)
1. Concept
The so-called interruption refers to the process in which the CPU forces the CPU to stop the program currently being executed due to an external or internal event, the service is switched to the Event Service
"I know bios"->pci (pic)
Lightseed
2009-5-13 1, PCI overview
Note: The whole article is discussed in the PIC (8259) in the process of the process. When the PCI devices are plugged into the motherboard (which is included in the South Bridge), it
PHP line chart generation functions and examples
/*
* Generate a line chart in php
* By bbs.it-home.org
*/
Function line_stats_pic ($ value_y, $ width, $ high, $ strong = 1, $ fix = 0 ){
// Y
Mplab Introduction
The mplab integrated development environment (IDE) is a comprehensive Editor, Project Manager, and design platform. It provides the following functions: Create and edit using a built-in editor.Source code, Compilation,
1. Multiple pictures to synthesize a picture such as:Picture compositing, can be displayed in the browser and save to the folder belowPHP/** * Image Merge **/ $pic _list=Array( ' Img2.png ', ' img2.png ', ' logo.png ', ' logo.png ', '
Let's take a look at the final result: The following is the PHP code: /******************************** line chart generation function ***** * **********************/functionline_stats_pic ($ value_y, $ width, $ high, $ strong = 1, $ fix = 0
Let's
After seeing this question, we began to design this image class. According to the object-oriented "Dependency inversion" design principle, we decided on the customer's standpoint to consider what interfaces should we provide for this class, soon we
Discuss the relationship between Factory model (Abstract Factory) and DIP
Most people refer to the Factory mode as the Abstract Factory mode in the GOF design mode.
This is a common and useful mode. What is the relationship between it and DIP
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