Military Industry of Great Powers: Build the Strongest Flanker

While waiting for tape-out, Teacher Xiao Zhao assigned homework as usual.

The content of the homework is to summarize the work of the past six months.

Zhao Guoqing asked for more than 100 books, software and hardware papers, journals, and many teaching materials from the academic ministry.

There are specifications of the C language, as well as structured design languages, some unpublished discussions on C++, exploration of the physical level of transistors, and writings on computer-aided design of ultra-large-scale transistor circuits.

Only then did Gao Tingzi from the 14th Institute of China Electronics and Electronics Technology discover that Teacher Xiao Zhao’s methods were all hinted in the book, but he couldn’t figure out why Teacher Xiao Zhao could achieve so many results with just one line of imagination in the book.

"Teacher Zhao, is it really possible to use computer-aided chip design?"

Zhao Guoqing smiled and said: "What we are doing, you can use hardware description language to model, build logical circuits, and design physical circuits!"

"Teacher Zhao, the syntax of C language is very similar to Ada language, but I feel that the idea of ​​pointers in C language is so genius."

Zhao Guoqing said nothing. There is absolutely no problem in programming small programs in C language, but if you program large programs, pointers are a complete nightmare. Eight out of ten bugs are caused by pointers, and if you don't have a global thinking, you can't find them out through inspection.

Zhao Guoqing pointed to the Chinese character description language on the blackboard and said, "Can you use C language to program our hardware description language?"

"..."

This is a new field, and many people's minds are buzzing. They think logically, and it is feasible to use computer language to describe the Chinese character hardware description language on the blackboard.

But there is no logical connection between the language instructions and the transistors on the chip.

Zhao Guoqing drew a transistor on the blackboard, the simplest PN-level two-stage transistor.

Three horizontal lines and three vertical lines are drawn next to the transistor.

"Who can come up and show how to use data to represent this transistor in a computer?"

Everyone in the scientific research room frowned.

Ling Kunquan of the 607 Institute said: "If you want to express the transistors in the chip, I think you must first number all the transistors in the chip, clarify the type of transistor, and the output and input wires must also be numbered..."

Zhao Guoqing nodded and said: "In fact, a set of 4x4 arrays can describe this transistor, and its properties can also be described by calculations, such as AND or gates..."

Zhao Guoqing demonstrated the calculation process on the blackboard, leaving Ling Kunquan dumbfounded.

"Teacher Zhao, do you have any relevant information?"

Zhao Guoqing took out a book from the book collection and turned to the corresponding page.

"Teacher Zhao, the above just said to use computers to describe the characteristics of transistors, but it didn't say how to describe it?"

Zhao Guoqing looked at Ling Kunquan and said, "It's not mentioned in the book. We can think about it ourselves. Do you have a better way to describe it?"

"..."

Gao Tingzhen finally understood why Teacher Zhao was different from people like them. He really dared to think. Foreigners could think so far in just one sentence and directly brought up the solutions.

At the door, Ji Hongbo stepped into the room with one foot and left the other foot outside the door.

I understand after seeing this scene!

Teacher Xiao Zhao did not stop and continued to teach his class.

"Group yourselves into two groups and two assignments. The first assignment is to describe the thirty-seven logic gate circuits in computer language. You can think of your own method. I will propose an array idea and ask for the logic gate program. Logic gate circuits can be simulated through calculation!”

"The second assignment is to use C language to input the hardware description language into the computer. You can think of the method yourself. You can also find information. There is relatively little information in this area!"

"By the way, there are five microcomputers in each group, and the C language compilation software is installed."

"..."

Zhao Guoqing has experience in leading students. If you arrange everything well, students will often be in their comfort zone and perform tasks step by step. However, in research, you often need to be pioneering, and you will be trained in encounters. The ability to solve problems.

Ji Hongbo also takes care of students, but he has never taken care of students and just left them alone after assigning homework.

"I'm convinced, too. They haven't even learned the DOS system yet, so just let them operate the computer. That thing costs tens of thousands of dollars!"

"A microcomputer only costs tens of thousands of dollars. If they can be trained, it will be a priceless treasure!"

"Only tens of thousands of dollars..."

Teacher Xiao Zhao’s tone is very loud!

"Professor Ji, what's the matter?"

Ji Hongbo said with a wry smile: "Now that I have talked about it, I almost forgot about the real thing. There are two things. One is the radar test, and the other is the prototype aircraft. The Air Force asked us whether we should send the aircraft to our base for modification, or take the radar to the northwest. assembly factory!”

"What do you think, Master Lu?"

"There is a problem with the radar right here at our base. It can be easily repaired and improved, otherwise our group would have to rush to the northwest!"

Zhao Guoqing nodded. PCB boards and parts are all assembled here. The equipment and instruments in the base are relatively complete, and it is easy to repair if there are problems.

"We won't be using the prototype for testing for the time being, right?"

Ji Hongbo said: "It can only be done synchronously. Although our radar is designed according to the size of the J-7, there is still a long way to go to fix it on the aircraft, connect it to the power source, and display the cockpit control system!"

This is for sure. After the radar is on the plane, the environment on the plane is different from that on the ground. In addition, the temperature drops sharply at high altitude, the vibration of the aircraft body and the influence of supersonic shock waves also put the reliability of the radar to a great test. .

"Fortunately, it's not a flight control fly-by-wire system. If the radar breaks down, it won't affect safety. By the way, how is the 204 radar tested?"

"Build a thirty-meter-high iron tower, put the radar on the tower, arrange antennas within the radar wave range to detect the radar waves, and then arrange balloons to detect the radar echo distance!"

"also!"

Ji Hongbo shook his head and said: "The tower will work, but it's not a balloon anymore. President Mu ordered that the real thing be moved this time!"

"What a guy!"

"Our radar can detect one hundred kilometers, not the dozen kilometers of the 204 radar. How many detection antennas should be deployed for these one hundred kilometers? This time, we will go directly to the fighter aircraft."

This action is not small, but Zhao Guoqing likes it.

"Mr. Mu will drive it himself. If we find the fighter plane, he will give you his gun. If we can't find it..."

Can't find it? impossible.

"Mr. Mu is still thinking about the one with the gun!"

Ji Hongbo shook his head and said: "Not only that, the test content also includes shooting a monster snake three times!"

The noise got louder and louder.

I didn’t expect to open v early in the morning, so I’ll post a chapter first, please support me! Thank you guys.