metric clock

The stm32 chip manual shows clearly that there are four clock sources: 1. HSI (Internal High-Speed clock 8 MHz) provides a clock source that supports BIT system clock 2. HSE (external high-speed clock) provides system clock and RT

Basic Concepts UNIX time: Or POSIX time is the time representation used by Unix or Unix-like systems: from Coordinated Universal TimeJanuary 1, 1970 00:00:00The total number of seconds from now on, excluding leap seconds. Clock: In the counting system, all waveforms are synchronized with a basic time series, which is called a clock ).The clock is a periodic wave,

From: http://blog.chinaunix.net/uid-22917448-id-1765503.html Audio ClockingAudio clock==================== This text describes the audio clocking terms in ASoC and digital audio inGeneral. Note: Audio clocking can be complex!This document describes the ASoC and audio clock terms in digital audio. Master ClockMaster Clock------------ Every audio subsystem is driv

Study on auxiliary clock of AT91RM9200 Platform [Date:] Source: MCU and Embedded System Application Author: baili Ren nun, Lanzhou Jiao Tong University [Font:Large Medium Small] 　 IntroductionIn VxWorlks, the implementation of the timer mechanism is based on the clock. Different Timing mechanisms can be selected based on different requirements, such as taskDelay (), WatchDog, and auxili

Jitter is defined as the deviation of the signal from its ideal position. This article focuses on clock Jitter and discusses the following types of clock jitter: adjacent periodic jitter, periodic jitter, time interval error (TIE) jitter, phase noise, and phase jitter.Introduction to Clock JitterClock jitter is the deviation of the

How to set alarm time for iphone5 under iOS7 systemAn alarm clock is essential for office workers, but the traditional alarm clock does not set the bell, always listens to a kind of voice to get up, long time can let a person be bored. The use of iphone5 built-in ringtone function, you can set morning exercises music alarm clock, you can also make a piece of pian

STM32 A total of five clock sources, namely: HSI is a high-speed internal clock, rc oscillator, the frequency of 8MHz; HSE is a high-speed external clock with a frequency range of 4~6mhz; (can connect quartz/ceramic resonator or external clock source) LSI is low speed internal

This paper interprets the SHARC clock systemclkin: Clock input. pre-divider: Front dividerPost-divider: Rear dividerCCLK: Kernel clockPCLK: Peripheral ClockRegister Overview Power Management Control Register (pmctl). Governs the operationof the PLL and configures the PLL settings.Power Management Control Register 1 (PMCTL1). This register controls the various peripheral ' s clocks.Clock Control: Programmabl

Number 16th ... April 16. April 16, 1960 three o'clock in the afternoon a minute before you are with me, because of you I will remember this minute. From now on we are a minute friend, it is the fact that you can not change, because it has passed. I'll come back tomorrow. --The story of a punk Time in real life is a very important concept, time can record the time when things happen, compare the sequence of things happening. Some scenarios of distributed systems also need to record and

2nd Week Programming QuestionsView Helpreturn2nd week programming, modified on the basis of the clock program given by the courseIn accordance with the terms of academic integrity, I guarantee that this work is done independently.Warm tips:1. This assignment belongs to the online Judge topic and is enigmatic grading by the system immediately after submission.2. Students can submit an unlimited number of answers before the deadline , and the system wil

First to show you the effect map, interested friends can download the source Oh. Effect Demo Source Download Digital clocks can be applied to some Web countdown effects, Web alarm effects, and web-based apps based on HTML5, and this article will show you how to use CSS3 and HTML to make a very nice digital clock effect without any pictures. Html We first prepare a clock area #

High speed ADC Clock jitter solution The clock jitter of the high-speed ADC affects the SNR of the high-speed ADC, while the signal-to-noise ratio determines the effective range of the analog front-end input. Therefore, it is necessary to determine the effective input range of the analog front end, then determine the SNR that should be satisfied, and then deduce the cl