ptp clock

Click to open hdu1209Problem Descriptionthere is an analog clock with the Hands:an hour hand and a minute hand. The hands form an angle. The angle is measured as the smallest angle between. The angle between the hands have a measure that's greater than or equal to 0 and less than or equal to degrees.Given a sequence of five distinct times written in the format hh:mm, where HH is both digits representing full hours (0 0 For example, suppose is given a

A phase-locked loop and CPU clock. CPU Clock = phase-locked loop 0 output/CPU The Prescaler value of the clock configuration register is: fcpu=fcco/cclkcfg+1. The PLL can multiply the external clock to a higher frequency, and the PLL0 output frequency is:Fcco = (2xMxFin)/n;m=msel0+1,n=nsel0+1. MSEL0 and NSEL0 are the l

Nonsense not to say, first to show you the effect of the picture, interested friends continue to look down OH View Demo Source Download Html And previous article: using jquery and CSS3 to make the same HTML structure as the digital clock (CSS3), just one more >date to show the date and week. Jquery CSS Code please refer to the previous article, this article no longer verbose, directly look at the jquery code. First we define the p

For H5, canvas can be said to be its most characteristic of a place, with it after we can freely in the Web page to draw a variety of graphics, do some small games ah what. Canvas the use of this label, there are a lot of tutorials on the web, there is no introduction. Today we use canvas to make a small clock. The complete code is https://github.com/wwervin72/HTML5-Clock here. So first on this page I used

It is not complete enough to write it casually. Remember it for the moment, and there are still some things you haven't figured out !~ Recently, we are working on porting the new kernel version, and bringing the original BSP to the latest kernel 2.6.31-rc7 (which has been released again ). When rewriting the system timer (sys_timer), I found that there is always something missing, and I don't know anything. The boss's proposal + refer to Daniel'sCodeAnd found that the BSP did not have

Article Title: Linux clock Processing Mechanism. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In Linux, many activities are related to time, such as process scheduling and network processing. Therefore, understanding the clock processing mechanism in the Linux operati

(Original by Xu jiansheng) Java Swing uses simple multithreading to achieve dynamic clock, swing Multithreading Note: This article is only for learning and communication. The above is, the code below The first class is Circle. package org.xt.util;import java.awt.Point;public class Circle { private Point centre; private int radius; public Circle(Point centre, int radius) { this.centre = centre; this.radius = radius; } publ

The Design of UpClock is inspired by the UbuntuTouch lock screen clock. It allows users to select 10 different colors, change the display time type (12 hours or 24 hours) based on the background, and adjust the transparency. At the same time, users are notified at an accurate time, like an alarm clock. The latest versions of UpClock5.5, Ubuntu15.10, Ubuntu15.04, Ubuntu14.04, and Ubuntu12.04 can be installed

RTC (Real Time clock): Realtime clockBCD code: 4-bit 2 binary to represent the decimal form within 10.RTC Clock Source: LSE (32.768KHZ), HSE_RTC, LSI. After a precise calibration (RTC_CALR). The 7-bit prescaler is then divided (rtc_prer, default 127+1=128) to produce a ck_apre () clock. Again after a rough calibration (RTC_CALPR). Then go through Rtc_prer (a sync

Animating the clock with quartz2d (i)To achieve the clock effect, first drag the material dial into the project1. Define hour, minute and second seconds three layer class member properties@property (Nonatomic,strong) calayer ***hourlayer;2. Create a dial layer, set properties, and add to the parent view// Create a clock layer setting property calayer *clo

the STM32 real-time Clock (RTC) is a stand-alone timer. The RTC module of the STM32 has a set of continuously counted counters, which, under the corresponding software configuration, provides the function of the clock calendar. Modifying the value of a counter can reset the time and date before the system. Since the clock only needs to be configured once, the nex

Author: Yang Shuo,Hua Qing vision embedded college lecturer. 1. Overview RTC functions: Generally, RTC is used to provide reliable system time, including information such as year, month, day, hour, minute, and second.RTC works properly when the system is shut down, because it is powered by a backup battery.The peripheral of RTC does not require too many auxiliary circuits. Typically, you only need a high-precision 32.768khz crystal oscillator and capacitor, as shown in: In the past, the RTC mod

effectively manage or use time? First, we need to concentrate on solving a certain problem. Second, we need to have a plan (What should we do? Where can this problem be solved? How long? Emergency level ?) The basic process of the tomato working method consists of five stages: Planning: determine the activity of the day at the beginning of the day Tracking: record how many tomato clocks you have completed in a day, and which ones are within your estimation? What is beyond estimation? Record: A

Draw the HTML5 clock with pure Shading Language and shadinghtml5 Today is the last day of 2014. This time will always remind people of the clock. In a few hours, people on earth will be one year old, so let a HTML5 version of the clock is the task we want to complete today, the implementation of HTML5 clock rendering w

Use of the clock () method for processing time in Python, pythonclock The clock () method returns the current processor time, in seconds representing a floating point number on Unix. The accuracy depends on the C function with the same name, but in any case, this is an algorithm function that is used for benchmarking Python or timing. In Windows, this function is returned because the first call of this fu

First, the purpose of the experiment:? Learn how to extend a simple I/O interface in a PC system? Learn Turnipbit Plug programming? Learn Turnipbit expansion board and DS3231 Clock module connection wiring method? Learning the use of clock modulesSecond, the required original device:? Turnipbit piece? Turnipbit Expansion Board Piece? DS3231 Clock Module One? DuPo

The main reason to do the clock is because like, think it good-looking (I have a little love for special effects ...). ）。 Do when the sense of engineering will be a bit large, do the discovery to realize it is not difficult, as long as the mind, in fact, quite simple (I make things like the overall direction to make good, and then do the side to find the feeling, the end may have a different surprise).I use the background picture of the

The operation WPS Office2005 powerful Custom animation function, can produce the animation effect which can compare with the flash. The following author on the production of electronic clocks as an example to explain to you. First, new project and design background 1, run WPS demo, create a blank slide. 2, the following settings: Click the View menu, in the pop-up drop-down menu click the grid line command, pop-up "gridlines" dialog box, check the "Screen display grid" option, click "OK" butt

Usually people do not how to use the computer alarm clock, because the mobile phone can easily realize this function, small set is also encountered immediately to kill seconds to think of the computer alarm clock function, I believe that sometimes netizens will use. As a result, small series for everyone to launch a grand set of computer alarm clock tutorial. Hop

1. The Shutdown alarm clock function in the mobile phone "application" We click the following method step by step into. 2. Then find the application in the "clock" click Open to enter. 3. Now we click on the "Alarm Clock"-"+" icon to create an alarm clock first (a friend will say this and boot no diff