delay function

In the development of Linux driver, the delay function is often used: Msleep,mdelay/udelay.Although both Msleep and mdelay have delayed effects, they are different.1.) for the module itselfMdelay is a busy wait function and cannot run other tasks

Original link: Https://github.com/EasyKotlin In the common concurrency model, multi-process, multi-threading, and distributed are the most common, but in recent years there are some languages that provide support for the concurrent-based concurrency

The infrared receiver Head model has many HS0038 VS838 and other functions are roughly the same, but the PIN package is different. Infrared receiver has several unified encoding method, which encoding method depends on the chip used by the remote

This is a creation in Article, where the information may have evolved or changed. A complete function definition form in the Go language is as follows: Func (t type) funcname (a int) (b,c int) {return) 1.func is the keyword that defines the

I plan to review the hardware resources related to stm32 over the past few days. I want to start from the very beginning and get familiar with what I learned. Learning stm32 initially started from the flow lamp, and today it starts to light up the

a.JS's implementation characteristicsdue to the single-threaded features, JS can only execute part of the code over a period of time, then, when there are multiple pieces of code to execute, you need to wait in line. Two. Single thread vs.

Android analysis caused by one app packet capture (continued)Cause 0x00 First of all, this article is not a continuation of the Orthodox "Android analysis record caused by an app packet capture", but the analysis of an APP is the same as the cause.

I. Digital Display Principle We use the seven-and eight-segment LED digital tubes most often. The eight-segment has a decimal point while the other is basically the same. The so-called eight-segment is that there are eight small LED light-emitting

I. Digital Display Principle We use the seven-and eight-segment LED digital tubes most often. The eight-segment has a decimal point while the other is basically the same. The so-called eight-segment is that there are eight small LED light-emitting

Previously omitted a variable in Ucos multi-task switching,OSCTXSWCTR Identification System task switching timesIt should be used primarily in debugging functions.The Ucos system initialization function is Osinit (), which mainly accomplishes the

51 single-chip microcomputer:P3.2 PIN is INT0 interruptP3.3 PIN is INT1 interruptButton P3.2 P3.3Button low-level trigger:while (pb0==0);Delay ();#include #defineSEG P0//define seven-section display to Port 0sbit LED= p2^0;//define the LED light to

Time Unit:Milliseconds (ms), microseconds (μs), nanosecond (ns), Picosecond (PS), femtosecond (FS), seconds, and seconds1 s = 10^3 ms = 10^6 US = 10^9 NS = 10^12 PS = 10^15 fs=10^18 PST =10^21 parsecs =10^43 Planck constantIn the development of

Application CSDN Blog certification expert through, really let me flattered, I still have this self-knowledge, and experts Daniel these words still have a long distance.But certification by giving themselves a motivation, on the blog to share more

This is a creation in Article, where the information may have evolved or changed. Preview Catalog Some conclusions Closures and anonymous functions Consolidate Reference documents What is defer? How do I understand

We have introduced the implementation principle of low-resolution timers and high-precision timers in the previous chapters, and the kernel has provided some APIs for delay or scheduling in the time subsystem to facilitate other subsystems, such as

DOCTYPE HTML>HTML> Head> MetaCharSet= "Utf-8" /> Metaname= "Viewport"content= "Width=device-width, initial-scale=1"> title>The window in JavaScripttitle> Window Learning 1.Window Common Method dialog box alert---Pop-up

I. Explanatory notes 1. Overview SetTimeout: Call a function after the specified delay time or execute a code fragment SetInterval: Periodically invokes a function or executes a piece of code. 2. Grammar SetTimeout: var Timeoutid =

4, Core layer analysis:The core layer completes the implementation of the different protocols and specifications and provides the interface function for the driver of the host layer, the two functions we have called in the host layer:Mmc_alloc_host (

Look at this one here. 　　 http://www.cctv.com/culture/index.shtml The picture automatically transforms, the mouse points to the different link picture also transforms accordingly. The tutorial that I am going to give this effect may be a little

One of the most important tasks of the operating system is process scheduling, which involves three main aspects: when to schedule how to select the next active process how to implement process switching Each operating system is very different, this