Technological Hegemony

Luo Jia and Li Moran, who came to Shenzhen, were greeted by all the senior management of Huawei. They took a commercial vehicle to the headquarters of Hisilicon Group.

In the field of semiconductors, there are not many companies that can come out in China. HiSilicon is a chip design company. They do not produce chips, they only design chips. They currently rank fourth or fifth in the world.

The mobile phone SOC Kirin series and the communication baseband Baron series that we are all familiar with are all proud of Hisilicon.

In China, there is no such company that can compete with Hisilicon. Although Ziguang Zhanrui ranks second, the gap is not small, and its annual sales are only half of Hisilicon.

In the international arena, Hisilicon's biggest rival is the famous Qualcomm. For the past ten years, Hisense and Qualcomm have been playing hot and hot, and the results are mutually beneficial. No one has suffered, and has not taken advantage.

Judging by the powerful performance of Hisilicon, it is no exaggeration to say that Hisense is the light of Huaxia's semiconductor design field.

"please!"

Mr. Yu made a pleased gesture. Luo Jia followed him and a lot of Huawei executives and came to a conference room.

It is worth mentioning that, as the largest semiconductor design company in China, the helm is a very knowledgeable lady, which is rare in the semiconductor field. In contrast, Star Technology is too masculine.

The conference room was large. After Luo Jia sat down, more than one hundred people came in from the outside. General He said that these people were the main engineers of HiSilicon and the experts in technology.

President Ren took a sip of tea and said to Luo Jia, "General Luo, everyone is here. Let's start right away. I will prepare lunch for you and eat here."

Luo Jia smiled. It really is an old friend. President Ren really doesn't treat himself as an outsider, he doesn't even ask for a meal, and just changes to a working meal.

However, this is also in line with Luo Jia's personality, and politeness is not necessary.

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

Li Moran cleared his throat and said Shen Sheng: "Now, let me introduce to you, the latest EDA industrial software developed by Xingchen Technology ..."

...

Li Moran stood on the stage and carefully explained that this job should be more appropriately done by Fang Yuanchu of the Semiconductor Department, but large-scale testing of industrial software cannot be separated from Fang Yuanchu, so Li Moran had to do the work for him.

"I know that Hisilicon is a company that mainly designs communication chips, so we have added a new generation of emulators to the Star EDA." Li Moran is not as famous as Enran for speaking fast, and he is not slow or slow. Said Speed: "Our simulator has six characteristics."

"First, the guard interval, the multipath channel will affect OFDM and destroy the positive interaction between subcarriers, and we insert a guard interval in the simulator to eliminate the intersymbol interference caused by the multipath channel, which is commonly known as ISI impact factor. "

"There are two insertion methods for the guard interval we design. One is zero padding, which is automatically filled with 0 in the guard interval, and the other is to insert a cyclic prefix or cyclic suffix to achieve the cyclic extension of OFDM."

"Inter-carrier interference generated during the guard interval, that is, ICI, we creatively use the CP technology. CP copies the samples at the back of the OFDM to the front. The length of each symbol is Tsym = Tsub + Tcp ..."

The simulator is used for hardware debugging. You can see the execution of each step of the program in the hardware. It belongs to a very important tool in the entire EDA software. There are different simulator designs for the characteristics of different fields.

After Li Moran introduced the guard interval measures of the simulator, the engineers at the back of the conference room burst into warm applause.

"Awesome, this guard interval is really a genius design!"

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

"I copied the back samples of OFDM to the front to eliminate carrier interference. Why didn't I think of it!"

"What's weird about this, do you know Wei Jianing? Cadence's chief technical consultant was dug to Xingchen Technology two years ago, in addition to Bai Xianyong, Zheng Lin, Tao Tao, anyway, Chinese industrial software researcher Niu, now all work in the software center of Xingchen Technology. "

"Yes! I heard that in order to assemble this world's strongest development team, Xingchen Technology spent old money just to pay the liquidated damages of employees, and almost smashed it out."

The chip development engineers have made a great sensation. Xingchen Technology has done a lot of work to reduce the difficulty of IC development. Various protection mechanisms are only one of them, as well as their most famous auxiliary artificial intelligence. The second generation of small stars is that. The real killer.

Mr. Yu, Mr. Ren, etc. are aggressive, for them, this thing is a bit too professional.

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

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

Enron is like a high-speed machine gun. I hope that I can finish all the 10,000 questions in one minute. Listening to his technology, he needs to give 200% energy, otherwise he can't keep up with his thinking at all.

Li Moran is like a pot of tea. He uses a slow voice to whisper like a story. He has to dig into a problem in detail, dig deep, and tirelessly, trying to make everyone present understand.

After Li Moran finished talking about the channel error correction, Luo Jia glanced at the time and found that it was already one o'clock in the afternoon.

For an emulator alone, he spent two hours talking about less than a fifth.

There was a glance at the corner of Mr. Yu. It seemed that his old man was a little restless, but where did he go?

What is industrial software?

It is the most complicated software system in the world!

In addition to the simulator module, Star Technology's EDA includes hundreds of modules including code inspection, digital analog IP / VIP, comprehensive tools, DFT, PR, DRC, layout, OPC and so on.

But the simulator is just a module that involves nodes, buffers, variables, network topology, MAIN functions, updateInterval definitions, various data sets, routing, source code understanding messages, message generators, and message queues.

Anyway, for people who haven't worked in industrial software, this is a nightmare.

Xingchen Technology has always implemented a policy of elite soldiers. However, in order to complete industrial software, Luo Jia has set up a huge development team of nearly 20,000 people. From the world, people are digging people crazy. It can be seen that the difficulty of developing industrial software is absolutely abnormal.

When Li Moran was going to talk about the pilot assist system, Luo Jia raised his hand and signaled that Li Moran stopped for a moment.

"General Manager Ren, EDA is a huge set of software, and we have made a lot of innovations in this software. If we really want to talk, I am afraid that we can't finish it in three days and nights." Luo Jia said, "I don't think so , Practice is the only criterion for testing the truth. Hisense first used our development version. If there is any problem, please communicate with us at any time. "

"no problem!"

Ren Zong was stunned long ago, and he hurriedly agreed with Luo Jia's plan.

So Li Moran came down from the podium ~ www.wuxiahere.com ~ and shrugged his shoulders and said to Luo Jia, "Is I speaking too slowly."

Luo Jia smiled, "It's not that you are too slow, but EDA is too complicated. Even if you change Enron, I am afraid he will talk for a week."

President Ren immediately announced the news of the meeting. He explained to Hisense He, he immediately organized personnel to conduct a comprehensive test of Xingchen Technology's EDA software.

"If this software can really replace Cadence's tools, then don't hesitate to change it immediately!" Mr. Ren Shensheng said.

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

Luo Jia was suspicious. "I heard that you seem to have stopped drinking."

"Let's do it." General Manager Ren waved his hand. "EDA tools are the lifeblood of semiconductors. You have solved the problems of EDA and eliminated the biggest hidden dangers for the domestic semiconductor industry. This is great news. I will drink it today. I'm happy to get down! "Remember this site's website, www. biquxu. Com, easy to read next time, or enter "" on Baidu, you can enter this site