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There are many methods to measure the load resonance frequency of a crystal oscillator, and the direct impedance method is one of them. It uses a network analyzer and is more accurate, conven...[Details]
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9.1 Mixed programming of ARM assembly and C 9.1.1 Embedded assembly __asm __asm("command") For example, turn off/on the general interrupt switch CPSR __asm //Use variable names in C instead of re...[Details]
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Huawei officially announced that the 2020 Huawei Developer Conference "HDC Together" will be held in Songshan Lake, Dongguan from September 10th to September 12th, and early bird tickets will ...[Details]
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OnePlus' antenna patent enables the antenna combination device to have both communication RF function and detection RF function, which improves the product value and enables its application in naviga...[Details]
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The continuous increase in clock frequency makes phase noise and jitter increasingly important in system timing. This article introduces their concepts and their impact on system performance, and p...[Details]
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The light decay of LED products is the weakening of the signal during light transmission. At present, the degree of light decay of LED products made by global LED manufacturers is different. High-p...[Details]
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Input capture principle In input capture mode, the current value of the counter is latched into the capture/compare register (TIMx_CCRx) when the corresponding edge on the ICx signal is detected. W...[Details]
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Recently, Shenzhen KeLu Electronic Technology Co., Ltd. (hereinafter referred to as the "Company") signed an "Investment Contract" with the Management Committee of Yichun Economic and Technological...[Details]
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1 Introduction
The technology of using ultrasonic pulses to measure fluid flow is developing rapidly. Based on different principles, various forms of ultrasonic flowmeters suitable for different o...[Details]
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characteristic
Guaranteed
1A output current
Input
voltage: 2.5V ~ 5.5V
1.5MHz
constant frequency PWM current mode control
·
Opera...[Details]
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The app program of this article is based on the national embedded one. Before writing the app, we need to compile madplay Preparation 1: Compile madplay First, unzip the three compressed files # ...[Details]
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NCL30160 is a new NFET hysteretic buck, constant current driver from ON Semiconductor for driving
high-power LEDs
. It is a new generation of high-efficiency solutions with a current of...[Details]
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LG recently had another dispute with Samsung, claiming that Samsung's 8K TV is not "real 8K" and its own TV is. LG Electronics publicly stated that Samsung's 2019 8K TVs do not meet the internation...[Details]
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As a manufacturer of thermal analysis instruments, the transient planar heat source method thermal conductivity meter is a common analytical instrument. It mainly uses the thermal conductivity tester...[Details]
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In the assembly language of the ARM processor, the constant expression of shifter_operand in the instruction syntax format has the following provisions: "The constant must correspond to an 8-bit bi...[Details]