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1. Hardware interface circuit The figure below shows the circuit diagram of an AT89S51 microcontroller with an 82C55 expansion chip. In the figure, 74LS373 is an address latch, P0.1 and P0.0 a...[Details]
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"Based on the experience of fuel cell research and development, solid-state batteries still need to be developed step by step. First, the electrolyte problem, then the negative electrode problem, a...[Details]
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Usage 1: Use static to define a variable in a function body to ensure that the variable is initialized only once
Example: #include "stdio.h"
int test(void)
{
static int i=0; //The corresponding...[Details]
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introduction
Every year, cars incorporate more and more complex and growing electronic systems to maximize comfort, safety and performance while minimizing harmful emissions. According to ...[Details]
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This article mainly discusses the principle of waveform three-dimensional mapping, and uses the ZDS oscilloscope to explain the significance and corresponding functions of grayscale display and color...[Details]
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Abstract:
SMS1180 is used to implement the CMMB mobile TV function on the smart phone platform, and the hardware structure and key design of the software system of mobile TV are introduced in ...[Details]
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1. Instrument model: 8845A; 2. Fault description: The current gear is burnt out and cannot be tested ; 3. Analysis, test and judgment: After testing, it was found that the device in the current chann...[Details]
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EPS power supply is also called EPS, EPS emergency power supply, fire emergency power supply, full name Emergency Power Supply. EPS is mainly aimed at solving the primary load power supply equip...[Details]
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On the morning of November 17, Huawei announced its decision to sell off all of its Honor business assets. Now, people close to Huawei have revealed to AI Finance that many Huawei employees are hopin...[Details]
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With the development of digitalization and informatization, large screens have been increasingly used in various occasions, and various display technologies have emerged. From the early CRT to the cur...[Details]
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At the Sogou Dictation Service Opening and AI Innovation Alliance Conference, Wang Xiaochuan was the first person to try out the "recorder". After Sogou recently opened its dictation service, recordi...[Details]
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Xie Guosheng, General Manager of State Grid Xiangxi Power Supply Company
State Grid Corporation of China has proposed a new strategy of "three types and two networks, world-class" to promote t...[Details]
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Preface This experiment tests the timing counter of STC15. The STC15F2K60S2 microcontroller has three timing counters. We usually use timer 0 and timer 1. The so-called counter counts the pulses of t...[Details]
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Let's talk about AD programs: Let's write the simplest single-channel single-shot acquisition:
//Query method to obtain AD value
#include //Our system board is msp430f149, so we have to use this ...[Details]
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Nielsen, a global market research organization, recently released the Sport 2024 research report during the Paris Marathon. The data shows that 68% of consumers have the habit of listening to music...[Details]
Power technology
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