Introduction to MCU and its development history

1. Introduction

The advancement of science and technology requires continuous improvement of technology. Analog circuits take up a lot of your energy, and the numerous components increase your cost.

Now, only a single-chip microcomputer with a size of several centimeters is needed to write a simple The program can make your previous circuit much simpler. I believe you are using

After mastering the microcontroller technology, no matter in your future development or work, It will definitely bring unexpected surprises.

2. Introduction to MCU

China began to use single-chip microcomputers in 1982. In just five years, The development was extremely rapid. In 1986, the first national single-chip microcomputer development conference was held in Shanghai.

Development and application exchange meetings, some regions have also established single-chip microcomputer application Association, that was the first climax formed in the country. As of today, single chip microcomputer should

With the rapid development of technology, we go to the Internet and enter a search term for "single chip microcomputer". If you search, you will see tens of thousands of websites introducing microcontrollers, not including those abroad.

There are many corresponding professional magazines, such as The authoritative magazine "Microcontroller and Embedded System Application" edited by He Limin is now

In July 2003, 91student.com (91 Headhunter) A professional talent demand survey conducted by the Internet in Shanghai, Guangzhou, Beijing and other major cities

In the demand report, the demand for microcontroller talents ranks first. Why does a small piece of paper have such magic?

Let's start with its composition: single-chip microcomputer, also known as single-chip microcomputer Or a single-chip microcomputer. It is a central processing unit ( CPU), random access memory

RAM , ROM, input/output ports The main computer functional components such as ( I/0) are integrated into an integrated circuit chip.

Microcomputer on a chip. The emergence of computers has accelerated the pace of human transformation of the world, but it is ultimately After all, the microcomputer (single-chip microcomputer) was born under this circumstance.

What has changed for us? Looking at all areas of our lives now, from From the navigation device of the missile to the control of various instruments on the aircraft, from the computer network

network communication and data transmission to real-time control and data of industrial automation processes Processing, as well as various smart IC cards, electronic

Pets, etc., all of these are inseparable from the microcontroller. Things can be made, but only by using complex analog circuits.

The resulting product is not only large in size, but also high in cost, and due to long-term use, As components age, the control accuracy will naturally fall short of the standard.

After the microcontroller was produced, we made the control of these things intelligent. Only a simple interface circuit needs to be connected to the microcontroller.

This is done by manually writing a program. This makes the product smaller and more cost-effective. The cost is also reduced, and there is no need to worry about the accuracy not being achieved after long-term use.

Therefore, its magic is not only now, but will be more in the future. People come to accept it and use it. According to statistics, the annual capacity of single-chip microcomputers in my country has reached

100 million to 300 million pieces, and growing at a rate of about 16% per year, but compared to China's share of the world market is less than 1%.

Most of the products produced by tool factories use single-chip microcomputers, and their influence is constantly spreading to the mainland. Therefore, learning single-chip microcomputers has broad prospects in our country.

Learn MCU, promote MCU, and be the leader of modern life. What are you waiting for?

① Flowing light ② Digital display

③ AD conversion ④ Waveform output

⑤ Programming interface ⑥ PC communication interface

⑦ Remote control decoding receiver ⑧ Function expansion slot