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The procedure is as follows:
#include AT89x52.h
#define uchar unsigned char;
uchar key_val=0; //define key value, the initial default is 0
uchar code TAB ={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0...[Details]
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Xilinx released its first quarter financial report for fiscal year 2020. The report showed that Xilinx broke the record again with revenue of US$850 million in the first quarter of 2020, a quarterly ...[Details]
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On the 24th, Xiaomi released a surround screen concept phone - Xiaomi MIX Alpha. The front, sides and back of the phone are all wrapped in displays. Like folding phones, it is a new type of mobile ph...[Details]
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The development direction of power supply can be summarized into three aspects: first, miniaturization; second, high efficiency and high reliability; third, intelligence or digitization. Among them...[Details]
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Introduction
The AD834 is the fastest four-quadrant multiplier available, with a usable bandwidth of 800 MHz. In comparison, the two-quadrant AD539 has a bandwidth of 60 MHz, the four-quadrant AD73...[Details]
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Previously, many sources have revealed that Xiaomi will launch the "super cup" model of the Xiaomi 11 series in the first half of the year. The phone will also be equipped with Xiaomi's top tec...[Details]
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On June 16, HMD released a new entry-level phone, Nokia C2 Android Go Edition, on its official website. As the name suggests, the Nokia C2 Android Go Edition is equipped with the Android 9.0...[Details]
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On May 20, the State Council Information Office held a press conference, at which Miao Wei, Minister of Industry and Information Technology, pointed out that major industrial indicators rebounded in ...[Details]
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In the process of learning ARM, I feel that registers basically do not provide bit operations, but overall operations. The overall operation is to pay attention to not affecting other bits when assi...[Details]
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Simulation diagram proteus7.8 and above Program compiler: keil 4/keil 5 Programming language: C language Design number: S0053 1. Main functions: Simulation design of date and time alarm clock sto...[Details]
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my country uses a method equivalent to IEC for the classification of explosive hazardous places. The national standard GB 50058-92 stipulates that explosive gas hazardous places are divided into thre...[Details]
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American scientists published a research paper in the latest issue of Science magazine saying that they have developed a new type of artificial flexible electronic skin patch that can convert signals...[Details]
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图源：Metamorworks/Shutterstock.com We talked about some characteristics of current ADAS technology, and discussed the system applications and deficiencies of the system. In this introduction, we foc...[Details]
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Electronic force gauges are commonly used force measuring instruments in our daily lives. They are also popular with customers for their force measurement, easy installation, and space saving. Howeve...[Details]
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The closed-loop servo system is a high-precision, high-response speed control system widely used in industrial automation, robotics, aerospace and other fields. The closed-loop servo system consist...[Details]
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