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The following is a matrix keyboard program for stc89c52 MCU. The keyboard is connected to port P0 and displayed on port P2.
#include reg52.h
#define uchar unsigned char
#define uint unsigned int
...[Details]
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The figure shows a circuit diagram of an operational amplifier series-connected adjustable voltage-regulated power supply, whose output voltage can be continuously adjusted between 6 and 25 V, and th...[Details]
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The simplest actual circuit of 5V/5W switching power supply is as shown in the figure. TOP210 (IC1) in the picture is a three-terminal PWM switch. IC1 contains PWM controller, power MOSFET and vari...[Details]
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First, recognize several important structures:
1. Interrupt Descriptor
Each interrupt line is described by an irq_desc structure.
//In include/linux/irq.h
struct irq_desc {
unsigned int irq;/...[Details]
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Sensing the physiological characteristics of biological tissues is of great significance for understanding the development process of tissues and assisting in disease diagnosis and treatment. Accur...[Details]
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The development of science and technology has enabled us to demonstrate unprecedented capabilities in the face of this epidemic. We have seen the construction of the Vulcan Mountain Hospital in 10 da...[Details]
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In the future, as long as Trump is in power, the biggest feature of the US stock market may be the high probability of instability, and the trend of the entire stock market will change with the polic...[Details]
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The combination of Heizhima Intelligent's high-computing autonomous driving computing platform and Uhnder's 4D digital millimeter-wave imaging radar will significantly improve the safety performance ...[Details]
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With the development of science and technology and corresponding technological breakthroughs, sweeping robots still have a lot of room for improvement
my country's sweeping robot market began ...[Details]
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On March 1, Suzhou Jingzhan Semiconductor Co., Ltd. ("Jingzhan Semiconductor") announced the completion of a strategic round of financing of several hundred million yuan in B+ round. The investment w...[Details]
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Rotational viscometers are widely used to measure the dynamic viscosity of various fluids such as grease, paint, coating, plastic, food, medicine, adhesive, etc. The instrument is simple in structure,...[Details]
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Application Technology丨In-vehicle high-speed data connection solution
Application field: Intelligent driving
Uniq...[Details]
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As the first overseas company to publicly issue depositary receipts and list CDRs on the Science and Technology Innovation Board, and a red chip structured company, Ninebot plans to issue no more tha...[Details]
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According to foreign media reports, the European Commission said on Friday local time that member states must take urgent action to diversify their 5G suppliers, a move that will reduce Huawei's infl...[Details]
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(1) Design intention. Language is a unique way of communication for humans, and it plays an incomparable role in the long process of human social development. Making machines "speak" has always been...[Details]