The time passes inadvertently, and it seems to be overwhelming.
This semester has been relatively busy since the beginning of the school year. Various issues have been mixed together. In May, I finished my dissertation. In June, I felt a sense of departure. I was thinking that these years have been on the road of simulation. After all, the future is not very optimistic. Or that technology is only part of life and the road ahead is long. I want to stand on the shoulders of giants. Flying together.
After graduating, all the small partners in the lab went out and I planned to go out and play. Take the rest of China as far as possible before starting your career.
Today, I packed things up and found that there are so many components here. There are many boards that my junior year and third year have done, and I can’t help throwing them because I think of many things. Every board, or in my past years, spent much of my time, from design to production to debugging, and then left it there. It was a pity to throw it until graduation.
The time goes back to 10 years. The landlord freshman started things like 51, and at that time I began to understand what is the crystal, what capacitance, what is the resistance,,,, from the sophomore began to live basically in the laboratory, where there were a lot of people, each class There will be several people, so it will add up. Especially in the winter, I feel that the 11-year winter is particularly cold. However, there will be no air-conditioning in the dormitory, and some people will like to buy a folding bed to sleep in the laboratory, of course, not less. Yourself. Most of the time is almost 1-2 o'clock in the morning, and then you will see what others do and think about what you do. The best thing you have done in your mind is program-controlled amplification and program-controlled filtering.
That is, in that period of time, because it is necessary to go on the hardware road, it will inevitably cost money, you can say that the first time you use Taobao is entirely because of the problem of components, because at first you need to go to the electronics market to buy things, it takes time does not Saying it is expensive, then almost only Taobao. After I followed a teacher, I didn't buy anything.
For a long time, because from ordinary RC, pin headers, copper pillars to expensive chips, it seems that each week it is necessary to pick up more than 100 yuan, and it will be nearly 500 in a month, and it will be relatively in the age of 11 years. It's still a bit expensive. The landlord came from the countryside, my parents were countrymen, and my family was not particularly good. But every time when I talked to my dad about buying components, he always said that it didn’t matter, although I didn’t understand why you could understand that it was your study. Some of you, as long as the parents you need to learn, will strongly support you. Whenever I think of a lot of things, I think I'm a lucky one.
When he was a freshman, his character was lively, and he was old and bubbling in class. He often liked to go to the 2nd class to run in the bedroom and he knew his roommate Daming. In the six or seven years of university, he was also the best player to play. Later, my teacher often praised him for the first-rate board speed, which means that the theoretical part needs to be strengthened. After that, he was a team with me, of course, there are Bin Ge, Jing Ge, Tong Ge, the boss ... whether in learning or life, at least for a very long time, we have lived at least.
It is me who is the most spooky of my teacher, or that my ability to deal with others is more brilliant than to be technical. It is precisely because of this that the teacher only speaks to me every time. In this way, we learned a lot in my teacher training. It is also in the team to participate in various types of competitions. The 100,000 words are omitted here.
Suddenly, it is necessary today. When you leave the city, you find that there is a lot of sadness. The next thing I wanted to do is to visit the distant place. To sort things out today and find that most of the boards were made during the sophomore year and the junior year. Each piece is my work.
It can be said that the Qiankang 100 holes, in front of the signal is added to use as a tuning filter.
Used to detect
Magnifying board
High-power power supply.
Program control amplification
Audio amplifier.
Two-way shaping OPA
This board has its own special impression, and the power of a magnifier that the sophomore summer electronic competition did that year made.
This I was more impressed, with the 430f5438, and later used it to do a clock, built, but unfortunately no longer see the clock when cleaning.
Used for recording. The year I came to school on the eighth day of the new year, and then one day I made this whole thing.
You should guess what it is. . .
This is AGC
Nima Ultrasound
I bought a lot of sensors when I was in the car. They bought them at a low price, but they also spent a lot of money. Finally, I sent the delivery and cleaned them. . .
I remember most of my accounts. Here I would like to thank my classmates from my classmates for their help in class A, Lab B, Lab C, and my classmates. Jingting, Cedar, Wang Xi, Xiang Brother, Hao Ge, Xiao Feng, Daqing, Jiao Jie, Xiao Qiang, Xiao Xiong, Xiao Fang. . . . . Because each time someone else's account is used to apply for samples to help them register for the phone, so that through the accumulation of that year I have almost 6 boxes full of chips. This is also the main reason why I almost didn't need to buy a chip later. I gave it to my teacher a few days ago. There are a lot of PLLs and IF mixer chips. Part was given to a younger brother.
Here we recommend that you take the hardware route can apply for more chips, mainly including Linear Technology, TI, Yaduo, Freescale, Maxim's chips can apply. In addition, we recommend that you can take a look at HITTITE's chip. Although it was acquired last year, it has achieved very good results in many projects in the RF field. Including the 13-year TI Cup has a program-controlled amplification problem. Many analog chips are difficult It is easy to implement but one attenuator using HITTITE.
555 touch you understand
This is the board that a sophomore automatic semester did in the last semester, and later I took my teacher. He said that your kid welder is good. . . .
Course designed to do the keyboard, with the oscillator.
DSP simulator V1. Specific production can refer to the practice of the official website. The same is true of the 430 emulator.
Can guess what this chip is not. . .
For too long, the board was discolored and I forgot what function was implemented at the time.
This is the DDS used. The frequency can reach 400M.
Scattered so much, it's not too soon. From the simulation's perspective, an excellent engineer on the hardware must have an excellent component library. In addition to adding good habits, you can certainly achieve small achievements.
Suggest:
If you want to take the road of hardware, especially the students of the competition, try to start as early as possible from the beginning of the first year, how much the whole thing, whether it is the program or the hardware part should have a basis. Personal advice No matter whether it is 51, 430, STM32, fpga, more or less should be touched, and the other programs are almost all modular. To see good modules should have a good finishing habit. In this way, you can use it directly when you use it next time. In the hardware above, we must learn how to do the entire PCB process, do a circuit to analyze the principle, not to ignore the principle in the whole thing, because any circuit needs to be summarized, what to encounter The problem can be properly taken notes, although I do not like to take notes, can declare that someone did not finish one thing like to record the problems encountered, and then analyze. Do not pull too long for another project cycle so that you are oily.
In addition, the team is very important, and the communication between them is also very important. A good teammate is more powerful than a person in there. Sometimes one person does not understand what he has learned for a long time.
More participation in a project and competition, because in the purpose of the environment to get things is very clear, purposeful and highly targeted, naturally have power.
In the end, saying that excellence is a habit and interest is the best teacher.
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