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Aiming at the problem that the current embedded cash register system has deficiencies in functions and cost performance, this paper introduces an embedded cash register system based on Cortex M3 ch...[Details]
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0 Introduction
Traditional multi-
motor control
systems are suitable for occasions with low requirements, relatively simple, and relatively concentrated motor distributi...[Details]
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After a long period of preparation, ZTE's new flagship "ZTE Axon 30 Ultra 5G" (hereinafter referred to as Axon 30U) has finally arrived. One of ZTE's slogans for this phone is "Standing at 30"....[Details]
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When it comes to test and measurement, the first instrument that comes to mind is definitely an oscilloscope. For electrical engineers, the role of an oscilloscope is irreplaceable. It is a good help...[Details]
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On November 30, some friends reported that when using Apple's MagSafe magnetic charger to charge their iPhone, they felt that the charging speed was faster and the heat was not as severe as before. M...[Details]
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Arbitrary waveform generator ( AWG ) is widely used in communication systems, test systems, etc. This paper uses the self-developed 150 MSPS 12-bit DAC and 300 MSPS 12-bit DAC, based on CPLD...[Details]
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With the rapid development of the electric vehicle industry, charging piles, as an important infrastructure for electric vehicles, are increasingly receiving widespread attention for their standard...[Details]
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At 01:56 Beijing time on May 10, 2022, the Long March 7 Yao 5 carrier rocket carrying the Tianzhou 4 cargo spacecraft was ignited and launched at the Wenchang Space Launch Center in my country. Acco...[Details]
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1. Introduction
AC speed control systems usually use IGBT pulse width modulation drivers to control the execution motor to operate in four quadrants, thereby meeting the high precision and...[Details]
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Microbial fuel cells (MFCs) are devices that use microorganisms as catalysts to convert chemical energy into electrical energy. They are the product of the combination of microbiology and fuel cel...[Details]
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.h>
#include stdio.h
typedef unsigned char uchar;
sbit din=P1^0;
sbit clk=P1^1;
sbit load=P1^2;
void send(uchar add,uchar dat)
{
uchar ads,i,j;
load=0;
i=0;
while(i 16){
if(i 8) ads=add; ...[Details]
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1 Introduction
In the power system, in order to ensure that important equipment with high power supply reliability requirements can work normally, power plants and substations should be instal...[Details]
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Development Environment: Host: fedora 14 Virtual machine: vmware workstation 10 Cross-compilation tool: arm-linux-gcc 4.3.2 Development board: mini2440 (2m nor, 64m sdram, 256...[Details]
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In 2020, the third-generation semiconductor industry has become the hottest industry. The craze for domestic substitution and new infrastructure has undoubtedly added fuel to the fire. According to...[Details]
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Installing the ARM-Linux-GCC toolchain
Assuming your Ubuntu system is up to date, you only need to execute the following command to successfully install it:
sudo apt-get install gcc-arm-l...[Details]
Mobile and portable
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