Luo Jia and Li Moran, who came to Shenzhen Stock Exchange, were grandly welcomed by all the senior management of Huawei. They took a business car to the headquarters of HiSilicon Group.

In the semiconductor field, there are not many companies in my country that can be used for sale. HiSilicon belongs to a chip design company. They do not produce chips themselves, but only conduct chip designs. They are currently ranked fourth or fifth in the world.

The soc Kirin series and communication baseband Balong series that we are familiar with are all excellent works of HiSilicon.

In China, companies that can compete with HiSilicon do not exist yet. Although Tsinghua Unigroup ranked second, the gap is still quite large, with annual sales of only half of HiSilicon.

Internationally, HiSilicon's biggest opponent is the famous Qualcomm. In the past ten years, HiSilicon and Qualcomm have been fighting fiercely, but they have won and lost each other. No one suffered any losses or gained benefits.

Judging from the various powerful performances of HiSilicon, it is no exaggeration to say that HiSilicon is the light of China's semiconductor design field.

"please!"

Mr. Yu made a call, and Luo Jia followed him and a group of senior executives of Huawei to a conference room.

It is worth mentioning that as the largest semiconductor design company in China, HiSilicon is a very intellectual lady at the helm, which is rare in the semiconductor field. In comparison, Xingchen Technology seems too masculine.

The conference room was very big. After Luo Jia sat down, more than 100 people came in from outside. Mr. He introduced that these people were HiSilicon's main engineers and great technical experts.

Mr. Ren took a sip of tea and said to Luo Jia, "Mr. Luo, everyone is here. Let's start immediately. I have someone prepare lunch and eat it here."

Luo Jia smiled. It turned out to be an old friend. Mr. Ren really didn't treat himself as an outsider. He didn't even invite a meal and just changed to a work meal.

However, this is in line with Luo Jia's character. It is unnecessary to be polite, and it is better for everyone to get straight to the point.

He nodded to Li Moran, so Li Moran walked to the front desk with the laptop he brought with him, and the staff helped him connect to the projector.

Li Moran cleared his throat and said in a deep voice: "Now, let me introduce to you the latest eca industrial software developed by Xingchen Technology."

Li Moran stood on the stage and told seriously that this work should have been done by Fang Yuanchu of the semiconductor department, but large-scale testing of industrial software is inseparable from Fang Yuanchu, so Li Moran had to do it for him.

"I know that HiSilicon is a company that mainly designs communication chips, so we have added a new generation of emulators to Xingcheneda." Li Moran is not known for speaking quickly like Anran. He said at a slow speed: "Our emulator has six major characteristics."

"First, the protection interval, the multipath channel will have an impact on ofdm and destroy the positive interaction between subcarriers. We insert the protection interval in the emulator to eliminate the intersymbol interference caused by the multipath channel, which is commonly known as the isi influence factor."

"The protection interval we designed has two insertion methods. One is to make up for zeros and automatically fill in the protection interval. The other is to insert a loop prefix or loop suffix to achieve the loop expansion of ofdm."

"The inter-carrier interference generated in the protection interval, that is, ici, we creatively used the CP technology. CP copies the sampling at the back of the ofdm to the front, and the length of each symbol is Tym=tsub+tp"

The emulator is used for hardware debugging. You can see the execution of each step of the program in the hardware. It is an extremely important tool in the entire set of EDA software. It has different emulator designs for the characteristics of different fields.

When Li Moran introduced the protection interval measures of the simulator, the engineers in the back row of the conference room burst into warm applause.

"Great, this protective interval is really a genius design!"

"With the protection interval, you can speed up the development progress and reduce bugs!"

"Why didn't I expect that the rear sample of ofdm will be copied to the front to eliminate carrier interference!"

"What's so strange about this? Do you know Wei Jianing? The chief technical consultant of cadene was poached to Xingchen Technology two years ago. In addition, there are Bai Xianyong, Zheng Lin, Tao Tao. Anyway, the big guys who are studying industrial software among Chinese people are now working in the software center of Xingchen Technology."

"Yes! I heard that in order to assemble the world's strongest development team, Xingchen Technology spent a lot of money just by paying employees' liquidated damages, and almost made it hard with the money."

The chip development engineers were completely sensational. Xingchen Technology has done a lot of work to reduce the difficulty of IC development. Various protection mechanisms are just one of them, as well as their most famous auxiliary artificial intelligence, the second generation of Little Stars, which is the real killer weapon.

Mr. Yu, Mr. Ren and others looked confused. For them, this thing is a bit too professional.

Next, Li Moran introduced the second important innovation of the emulator, channel error correction technology.

Two vice presidents of Star Technology, two completely different styles.

An Ran is like a high-speed machine gun, wishing she could finish all ten thousand questions in one minute. Listening to his technology, he had to put in 200% of his energy, otherwise he would not be able to keep up with his ideas at all.

Li Moran is like a pot of tea. He tells the story in a slow voice like telling a story. A question needs to be explained in detail and dig deeper, never tire of it, trying to make everyone present understand.

After Li Moran finished talking about the problem of channel correction, Luo Jia took a look at the time and found that it was already one o'clock in the afternoon.

He only spent two hours talking about a simulator, but only less than one-fifth of it.

He glanced at Mr. Yu, as if he was a little unable to sit still, but where did he go?

What is industrial software?

It is the most complex software system in the world!

In addition to the emulator module, Xingchen Technology's EDA also consists of hundreds of modules including code inspection, digital simulation IP/VIP, comprehensive tools, dft, pr, drc, layout, opc and other.

The emulator module just involves nodes, buffers, variables, network topology, main functions, updateinterval definitions, various data sets, routing, source code understanding messages, message generators, and message queues.

Anyway, let's say that, for those who have never worked in industrial software, this is a fantasy.

Xingchen Technology has always implemented a policy of elite troops. However, in order to complete industrial software, Luo Jia has established a huge development team of nearly 20,000 people, and has been poaching people from all over the world. It can be seen that the difficulty of industrial software development is definitely at an abnormal level.

When Li Moran was about to talk about the pilot assist system, Luo Jia raised her hand and signaled Li Moran to stop for a moment.

"Mr. Ren, ety is a huge software, and we have made a lot of innovations in this software. If we really want to say it, we may not finish it in three days and three nights." Luo Jia said, "I think it's better. Practice is the only criterion for testing the truth. HiSilicon first uses our development version. If you have any questions, please communicate with us at any time."

"no problem!"

Mr. Ren had been suffocated for a long time, so he hurriedly agreed to Luo Jia's plan.

So Li Moran walked down from the podium, shrugged his shoulders and said to Luo Jia, "Are I talking too slowly?"

Luo Jia smiled, "It's not that you are too slow, but that Edy is too complicated. Even if you come to An Ran, he will probably have to talk for a week."

Mr. Ren immediately announced the news of the end of the meeting. He told Mr. He of HiSilicon to immediately organize manpower and conduct a comprehensive test of Xingchen Technology's ecai software.

"If this software can really replace cadene's tools, don't hesitate and replace it immediately!" Mr. Ren said in a deep voice.

Turning back, President Ren said to Luo Jia and Li Moran, "Leave it to Lao He, you two follow me, let's have a drink!"

Luo Jia was suspicious, "I heard that you seem to be banned from drinking."
Chapter completed!