Chapter 145 Manuscript

After helping Lin Hong finish the poison, Arthur went back to his room. Lin Hong also followed him and brought back two books from him, both of which were about infrared communication protocols. There was also a floppy disk, which was matched with one of the books, which contained some example codes of the case in the book.

Arthur is very sleepy at this moment. He can't hold on, so he can only continue tomorrow during the day.

Lin Hong said that he came to help designate a communication protocol for the calculator. Arthur had no hope for this. In his opinion, Lin Hong didn't even know what infrared communication was before. How could he develop such an agreement in a short time?

However, he did not hit Lin Hong's enthusiasm, because there are some things that can't be learned without his own experience. Just like the previous poisoning, he did not particularly remind him to pay attention before. In his opinion, some things must be felt by himself.

However, Arthur did not know that when Lin Hong said this, he was actually sure. In his opinion, the communication protocol is not difficult. This is what he felt after reading the book on TCP/IP protocol. The first time he read it, he completely understood the bottom of the agreement. To put it bluntly, the agreement is the rules. The rules specified by people for data exchange are the same as the rules and regulations in daily life.

And Lin Hong also has a basic understanding of infrared communication from the posts he has seen before. In his opinion, infrared communication and radio communication are completely connected. Infrared is also radio, and radio is his strengths. He has read many professional books about this field a long time ago. Although it was rarely used in later life, those contents have been stored in his mind. There is no forgetting at all.

Infrared is an invisible light, which is the most common electromagnetic wave in life. In fact, all luminous and hot objects emit infrared rays all the time. In Lin Hong's previous radio communication career, infrared rays appeared as interference radio waves, and they were not studied in depth. Unexpectedly, it was used as data transmission a long time ago. However, due to the particularity of its wavelength, it can only be used for short-distance transmission and cannot penetrate obstacles. Data transmission can only be carried out indoors.

After Lin Hong returned to his room, he did not immediately start studying infrared rays, but ran Sister Q's software and began to write his first email in his life.

Because he remembered that he had not contacted LUS, and the other party had given him an email address before, tonvaldA@klava.HelALnkL.FL. Since he can surf the Internet now, he should send an email to the other party to say hello by the way. Let's ask how his operating system project is going.

When Lin Hong registered for the 'Tulip' BBS, he automatically got a free email address. At this moment, he wrote to LUS with this email address.

After sending his first email, Lin Hong began to formally study infrared communication technology.

The infrared wavelength range is 0.70UM~1mM, but in this wavelength range, the stability of data transmission varies, and each manufacturer has its own understanding. Usually, in the 850nM ~ 900nM band, it is the most stable.

In fact, as long as the protocol is appropriate and the hardware meets the conditions, the speed of infrared communication can also reach a very high rate. Lin Hong saw that some manufacturers have reached more than 100Kbit/A, and theoretically it can reach a higher speed.

Infrared communication protocol actually reconciles ps: the four-port communication protocol has many similarities and is more streamlined than this protocol. In the process of transmission, it also needs to go through the process of encoding and decoding.

This part is a hardware function. Texas Instruments has done a good job. The work that Lin Hong is going to do now is completely software. As long as it is combined with the infrared coding and decoding circuit on this calculator, a set of communication protocols suitable for it can be customized.

The information that Matthew asked Texas Instruments to mail before is now on Lin Hong's desk, which contains the circuit diagram of the infrared transceiver.

Under the deliberately dim desk lamp, Lin Hong picked up the calculator reference materials to have a look, then picked up the book of the communication protocol, turned over a few pages, and then drew a few sequence diagrams with a pencil on white paper..."

Time passes unconsciously, the sun rises from the east again, and a new day comes.

XXXXX

On the branches of the forest by the lake, unknown birds are singing happily, jumping around on the branches, tasting a delicious breakfast.

Under the tree, Lin Hong, Arthur and Matthew are doing morning exercises.

"Arthur, are you sure we don't have to stand like STO torch?"

Matthew, who was pressing his legs and twisting his waist, looked at Lin Hong, who was standing in a three-body style not far away and asked in a low voice.

"Just press your legs at ease. We haven't reached the level of three-body style yet." Arthur was simulating several common attacks in his mind at this moment. From time to time, he bowed his head and flashed, and then quickly counterattacked, as if an invisible man was fighting with him in front of him.

"Three-body-style?" Matthew scholar Arthur said that he reluctantly repeated these three words in Chinese pronunciation.

"Yes, the three-body style is the way STONE stands now." Arthur made a series of counterattacks, and then gasped and stopped. "This is a basic skill. According to STONE, it is very complicated. You can't stand casually, otherwise there may be all kinds of unpredictable pain."

"Oh, my God, thank you for reminding me in time!" Matthew was shocked. He was thinking about it. When he went back, he imitated Lin Hong's posture and secretly contacted him.

"It seems that I'd better practice honestly according to STONE's advice. Practicing with your brain is really a magical way to practice.

Matthew began to move his body according to the plan specified by Lin Hong before. Although he had doubts, after all, a living example was in front of him, which made him have to believe it. However, the feeling of morning exercise seems to be good. Looking at the quiet and wide road, no one can be seen within sight. Most of his peers are lying in ** and sleeping late at this moment. Only the three of them are working hard, giving him a psychological pleasure that is about to surpass others.

After the morning exercise, go home separately.

Vena still prepared a rich breakfast on time. Looking at Arthur with a big appetite, her face showed a bright smile. In the past, Arthur rarely had such an appetite in the morning, and even often went to school without breakfast.

Moreover, she also clearly felt that Arthur's smile and self-confidence began to appear on his face, which was rarely seen before. These are very gratifying changes, which happened after Lin Hong moved in. Obviously, these are all thanks to Lin Hong.

"Arthur, come to my room later and have something to show you." After breakfast, Lin Hong whispered to Arthur.

Arthur immediately ate the cereal in the bowl quickly, and then followed Lin Hong to his room. He thought that there might be something wrong with Lin Hong's computer again and asked him for help.

After coming to the room, Lin Hong took out a pile of white paper from the table and handed it to him.

Arthur said curiously, "What is this?"

"I have completed the first draft of the communication protocol. Please take a look and see if there is anything else that needs to be changed."

"What?" Arthur suspected that he had heard it wrong.

"You can take a look first. This is the result of my last night."

Arthur looked at Lin Hong's eyes and began to read quickly with the manuscript in his hand. These manuscripts, with text, code, and pictures, were very concise, and he read quickly. There is a sense of familiarity, but there are some innovations that he can't understand, but Arthur doesn't think about these manuscripts in his hand at this moment. He just thinks that Lin Hong is very efficient, and he really made this so quickly.

"You didn't sleep all night last night?" Arthur looked at the manuscript paper in his hand, a whole stack, at least a dozen, and it took a long time to write them by hand.

"Hey, I'm in good spirits. I only need a short sleep." Lin Hong said euphemistically, "There is still room for improvement in some places, but the time is too short. You can make it first and then optimize it later."

Arthur nodded: "I'll take it to school to have a closer look. If I think it's okay, I'll go to the school computer room to test it and see if it works."

He doesn't have much hope for this. What can he do in one night? What's more, when Lin Hong asked him for a book yesterday, it was already one or two o'clock in the morning. At that time, Lin Hong knew nothing about infrared communication.

What is the communication protocol? This is the focus of debate among major famous equipment manufacturers for so many years. As far as he knows, due to the lack of a uniformly recognized standard for infrared communication, there are many similar products with protocols on the market. These products are incompatible and are only compatible with their own products, which is very chaotic. A few days ago, there seemed to be news that these manufacturers planned to sit down calmly and jointly formulate a unified standard. After all, this is the ultimate trend. Just like the TCP/CIP protocol, they have unified the protocol. Hello, I'm fine.

After all, Lin Hong is kind-hearted. After working hard all night, tossing out so many pieces of manuscript paper is a very great thing in itself, so although he doesn't think so, he will show enough respect. What's more, the reason why Lin Hong stayed up late to make it can be said to help himself.

Time is running out. Arthur copied all the programs he wrote to the floppy disk and planned to go to the school computer room to continue to complete it when he had time.

After coming to school, Arthur's first class was a history class. He was not interested in it, so he took out the manuscript Lin Hong gave him and read it again. (