1991 Starting from the core

After returning home with his father, Su Yuanshan watched the TV series Legend of the Yiwei Hawker with his mother. In the middle, he was inevitably muttered by his mother. He was not liberated until his father took a shower.

Standing under the water tank faucet, Su Yuanshan's mind was filled with chips.

The structure of the BB machine is not complicated. It receives the signal through the radio frequency antenna, passes it to the decoding chip after filtering, decodes it and passes it to the register and finally passes it to the output unit, such as screen and speaker. The decoding chip is not complicated, it is just a highly customized CMOS chip. But now Su Yuanshan wants to set a Chinese character encoding standard, which is a bit troublesome.

At this stage, paging stations are basically controlled by Motorola and Pioneer, and they all use card-type microcontrollers for encoding. It stands to reason that all he needs to do is build a single-chip microcomputer - but it is obviously unrealistic to expect Lao Su to build a single-chip microcomputer within a month or two.

Since this is Yuanxin's first step into the industry, it must have fully independent intellectual property rights, otherwise where is the competitive edge?

It seems that I need to find time to go to the paging station and take a look at it. This will cause trouble for blind people.

After taking a bath, Su Yuanshan returned to the living room, greeted his parents, and was about to enter the study, but was stopped by his mother Zhang Xiuyun.

Xiaoshan, I just heard from your dad that the notice for that competition has been officially issued. You have been going to your dad's company every day. How are you preparing? Have you learned anything?

Huh? Su Yuanshan glanced at his father, who also looked helpless.

He could only smile and said: It's okay, I can just write a small software when the time comes.

Zhang Xiuyun immediately became unhappy when she saw his attitude: What kind of attitude do you have! Casual? Are you asking your dad to take a semester off for you just to treat him casually?

Uh...Mom. Su Yuanshan didn't know whether to laugh or cry: Then I will take it seriously.

Zhang Xiuyun then snorted and said: You must be very energetic. Don't think that you know a little bit about computers and your butt is in the sky. There are other things in the world. This time your opponents are all middle school students in the country, including technical secondary schools and students. Vocational high school!”

Su Yuanshan looked at his father in surprise. He knew that the competition would definitely pass, so he didn't pay attention at all. Unexpectedly, technical secondary school students also came to intervene.

My father was quite helpless and said with a smile: The Ministry of Education and the electrical and mechanical department, which is the superior of our school, both felt that since it was the first time to do it, it should be done in a decent way. If it was limited to middle and high schools, there might not be many things that could be displayed. It was on the table, so we added all technical secondary schools and vocational colleges.”

Su Yuanshan didn't know whether to laugh or cry: Isn't this cheating? How can high school students compare with technical secondary school students? This is what people learn for their main job.

His mother continued to glance at him: What do you think? The special prize is not that easy to win.

I won’t say what technical secondary schools will look like in future generations. But before the mid-1990s, almost all those who could get into technical secondary schools were outstanding students - especially those from poor rural families. In order to start working early and obtain cadre status, technical secondary schools were almost the first choice.

Now the country has recruited this group of people, which is equivalent to comparing amateur players to professional athletes.

There is no way, after all, this is the first time. However, the plan of the Electrical Engineering Department has not changed. The technical secondary school students who can win the special prize from all over the country must not be ordinary people. If the Electrical Engineering Department does not suffer, the worst is to go to school to supplement mathematics and science.

Then Su Xinghe briefly introduced the rules of the First National Electronic Circuit and Programming Competition for Middle School Students.

The first session requires both dignity and respect, and there can be no mistakes at all. Therefore, a nationwide collection and two rounds of selection are adopted. The finalists who won the special prize and the first prize will call the department to make a final statement, similar to a defense, to prevent gunmen and cheating.

One electronic circuit and one programming design. These two special prizes will directly obtain the qualification for admission without examination for the Electrical Engineering Department. The first prize will receive the qualification for admission without examination or extra points for applying for the Electrical Engineering Department, depending on the situation. The second and third prizes will only be awarded certificates.

The deadline for submission of works is September 1st, subject to postmark. The selection period is from September to November, and the final awards will be on December 1.

Anyway, you have to take it seriously! Zhang Xiuyun once again sounded the alarm to Su Yuanshan.

I know, I must take it 100% seriously! I'll type the code right now!

Su Yuanshan looked back at his helpless father, then returned to the study with a smile.

Opening the EDA compiled yesterday, Su Yuanshan created a new project, then set the specifications and described the circuit.

Su Yuanshan retreated at home for two days.

…

Su Yuanshan rode his bicycle to Jiangdu Building after lunch. When he arrived at the company, the grouping had been completed, and the brothers who joined the microcontroller group also moved out of the company and returned to the laboratory of the Electrical Engineering Department.

Originally, matters like turf separation between younger brothers would usually take a long time to debate. Let alone an hour, even a day might not be able to resolve it. However, this does not exist in Yuanxin, because one team leader is the BOSS, and the other team leader is the director with the highest academic qualifications and the strongest ability...

The remaining Tian Yaoming, who is still studying for his second Ph.D., has nothing to do even if he is dissatisfied with him. But after learning that Su Yuanshan would study with him, Tian Yaoming felt with his usual keenness that his group was the most important.

Tian Yaoming is the second batch to come to Yuanxin for support. As Qin Weimin said, those who were sent here to help were indeed the proud disciples valued by their respective mentors, and they came here just for the purpose of taking a ride.

Who makes Yuanxin EDA so awesome? It's useless if you don't use it, and you won't really make progress anyway.

But after several professors from the Department of Electrical Engineering who were engaged in integrated circuits, especially microcontrollers, jointly established a microcontroller research group, Tian Yaoming felt that he might not be able to get out for a while.

Good morning, Senior Brother Tian. Su Yuanshan greeted Tian Yaoming as soon as he entered the door.

Good morning, Xiaoshan. Tian Yaoming was sitting in a separate office, feeling very happy - much happier than at his workstation.

Xiaoshan, how do we carry out our work? Tian Yaoming straightened up. He knew that the seventeen-year-old guy in front of him was a real monster, and he could be shocked by whatever he could pull out of his mind.

Well... we are mainly working on pagers. Senior brother should have studied it, right?

Tian Yaoming nodded, calmly and confidently: I have studied it for my master's degree. It's quite simple.

Su Yuanshan smiled and clicked a rhythm on the floppy disk with his fingertips: Okay, now our team has a total of 8 people. I am solely responsible for the design of the encoding and decoding chips. I will define the pins of these two chips later. And the specifications and functions are given to the senior brother, and the senior brother asks them to add them to the EDA component library.

Well, okay! Tian Yaoming replied casually, but was immediately startled. He frowned, blinked again, and finally stared blankly for three seconds before opening his eyes. He stood up with a bang, pointed at Su Yuanshan and shouted : Holy shit! You said you designed both the encoding and decoding chips in just two days?

Keep your voice down!

When Su Yuanshan saw that the senior fellows chatting in the work area who had not been assigned any tasks, they all turned around and were startled: I just defined the pins, and I haven't written a single instruction yet.

Tian Yaoming wiped his cold sweat - he was really scared just now. He designed two special chips from scratch in two days. Is this a human being? I'm afraid it's not the devil.

Then you mean we won't care about you? Design the PCB directly? Tian Yaoming looked at Su Yuanshan suspiciously. He knew that Su Yuanshan was very good at programming, but he didn't know about integrated circuits - but no matter what the level was, this was his Is this something a high school student should play?

Yes, to be precise, we are designing a pager, and we also need to design a coding card based on a coding chip that is compatible with the current paging station transmitter. This requires on-site inspection and verification at the paging station. Can you find the connection, senior brother?

Tian Yaoming thought for a while: No problem, our major and the Post and Telecommunications Bureau are counterpart units, and you can find acquaintances just by looking.

That's it, I'll go to the workstation to get the chips. The specifications of the two chips are written on the floppy disk.

——This is also one of the innovative features of Yuanxin EDA compared to its peers. You can customize any component according to the description at any time and enter the component library.

Okay...wait a minute, where is the main control IC? And where is the LCD panel IC? The Chinese display needs to be replaced with a driver IC.

Su Yuanshan stopped, scratched his head, and really forgot about these two things. After thinking for a while, he asked: How about posting some bull shit?

Tian Yaoming didn't know whether to laugh or cry: You've already made the decoding chip, how can you explain these two things with cow shit?

You can often see black circular chips the size of fingernails on low-end circuit boards. In fact, they are just a type of packaging in which components and integrated circuits are buried first and then a drop of glue is added. It is called bonding. The cost is cheap, but Repairs and replacements are troublesome, and they can't stand up to the trouble. Because the shape is so similar to a lump of cow daddy, it is commonly called cow dung.

Okay then... sort out your needs first and tell me later.

Walking into the office where the workstation is located, Su Yuanshan inserted the floppy disk and imported the chip design project.

What he just said was right, there was indeed not a single instruction written down.

Because there are only instructions left to write.