One thinks that electronics is a radio engineer experience

From a small child who thinks that electronics is a radio, to the electronic engineers, and then to the current IC sales engineer, it has been nearly a decade since the road came. Of course, the real work is three years. . Let's talk about the general idea, save you time, and see things that don't help you. I am writing this article with the idea of ​​bragging and showing off (and of course I want to help you and promote the products). I mainly introduce my own electronic history, English learning history and work history, and write about a graduated electronic talent. To understand what kind of electronic knowledge, (a lot of people say that they are qualified, I think what is qualified, that is, if you can get a job, you will be qualified, otherwise you will know more electronic knowledge, but you think it is qualified.) Ha, OK. Don't stink, or start writing the topic.

First, first met with electronics

When I was young, my family was poor (of course, I am not rich now). Many children in the village didn't go to school. They went to Shenzhen and Dongguan. They are the places that Chinese people know. The most advanced ones are electronics factories. They can have more than 1,000 wages a month. At that time, my biggest dream was to enter a school. The electronics factory is a worker~ (This dream was not realized due to parental interference).

In this way, I finished the junior high school and became the only one in our high school. In high school, there is only one goal. That is the university. The teachers are talking about it every day. Only when you study hard can you go to a good university and you can change it in the future. Good to contribute to the country. (At that time, my old class was more realistic. He said that only when I went to college can I find a good job and have a good wife.) Now I really want to thank him for his good work. There is no concept of good work, but a good wife is my biggest dream. So at that time I said every day to study hard for my wife.

At the time, WAKEMAN was popular, and there were a lot of tapes in the drawer. The headphones were passed through the sleeves of the clothes. . . . So I often sang a self-righteous song when I was in class. The only electronic product that was contacted at that time was WAKEMAN. If you can't afford it, it's the 50-piece one, listening every day. At that time, there was a boy in our class who would repair WAKEMAN. At that time, he was the engineer in my eyes, and he would use a soldering iron. At that time, my admiration for him was like a river, and it was continuous; as the Yellow River flooded, it was out of hand! So he followed him every day, and he was watered for him. Later, I can also repair WAKEMAN, so I went home and took my big tape recorder with my mother when I got married, but it seems that I haven’t installed it yet~

At that time, I tried hard to learn to repair the tape recorder. Another major reason is that there will be many girls who will let me help them repair. Ha, this is better than buying a girl for the DATAMM. It is much better (personal opinion) .

So I finished my high school and finally found out that my favorite textbooks were missing. The WAKEMAN and the tapes that were not finished were completely packed in two boxes. Of course, this became me. Mom, my best evidence. . . . .

In fact, I think about it now, I am such a person with less than 85 IQ, but I can also mix a computer science class. It really depends on my love for electronics, so if you really want to do this, you must Let yourself fall in love with her.

Second, nothing to weld the "clock" of the college era

In this way, I still couldn't get to Shenzhen. I went to a university to read my electronic information. The high number of the freshman and the circuit analysis of Marx and Lesotho made me feel that only the people who got into the water would say that the university is very relaxing. For 60-year-old, I didn't read the book in black and white, (I only have 80 in IQ); in order to talk to roommates in the same room, I have no black and white CS; in order to know more about MM, I also see the association. Just add, see the community. In this way, I also joined the Electronics Association, the first time I know what is called an IC integrated circuit.

When I was a freshman, I soldered a small circuit according to the circuit diagram, the power supply, and the temperature control. Anyway, some modules are electric. I remember that the first circuit I made at that time was a 12V output 5V regulated power supply. I welded it all. One day, I couldn't do it at the end. I turned the 7805 back. After I changed it, the LED glowed. My heart was happy, but I found out that I didn't eat one day. Later, after learning the analog-digital power, I began to understand some circuit design, the role of some devices and the selection of related devices. The commonly used IC was recorded at that time. Now I have already recorded two big books, but since I can't remember after I can understand the datasheet. IC can never be remembered.

The real improvement is the sophomore year. The sophomore year opened the basic courses related to the model electricity, digital electricity, and single-chip microcomputer. With the first-year modular power foundation, I was particularly interested in this course at the beginning. The results are good. At this time, I have basically contacted the common chips such as 74138, 7447, 4511, 74154, 74244, 7805, 7407, 7404, 7400, 4011, 40106, 40105, and the welding level of the freshman has also been greatly improved (I It’s silly. There aren’t any things like the photographic board in the electronics market. I don’t want to go flying. Therefore, it is generally slower to do things. I remember that I had to buy all kinds of boards at the time. I still soldered it a little bit, so that the circuits are already printed in my mind, so I still draw them now. quickly.

Later, it should be a turning point in my university. At that time, the school asked us to participate in the provincial electronic contest. Because it was a sophomore, it was just a design of some modular electricity. I didn’t need any knowledge of single-chip microcomputer. My comrades at the time were busy. The one went, and my two fellows and I left the electronic association and went to a single-chip learning class. Because the course was not open yet, so many people laughed at us. The teacher also wanted us to participate in the electronic contest. But the two of us went to the class, that is, in that class, I met me and the teacher, Lao Bao, (I am very grateful to you now). When I first remembered, I didn’t know what a single-chip computer was. Just a former senior told me that it was a course that must be learned. Once I found out that my advantage was gone, I became a poor student. I was very anxious. The program just didn’t understand, I couldn’t understand it, I couldn’t write it, and some hardware didn’t understand it. At that time, I couldn’t do it. It can be written down. Once, the teacher asked to write a display subroutine, which was just told last week. The whole class immediately wrote to me on the blackboard. Lao Bao praised me well, so I used the most since then. Stupid way, to draw the internal picture, to remember the program, remember that there was a keyboard scanning program at the time, I thought for a whole month, that month is really a meal, I don’t know what it is, then I went to eat in the cafeteria one day. Understood, yelling "Ah!" I am embarrassed to say it. . . .

But since then, I really found out that I understand everything. I understand the difference between the internal ROM and RAM of the microcontroller. What is the process of the microcontroller from the power-on to the start of work, the role of some internal components, (but I learned at the time) It is 51)

I remember that once on May 1st, my teacher took over a project. I was very honored to be selected. It started as a test board. After I ran before and after running, every day from 8:00 am to 11:00 pm. After seven days, although I was very tired and didn't touch any actual research and development, I understood the general process of a project and laid a good foundation for my future study. The project that was done at that time was a single-chip computer that controlled the colorful lights and was used to make municipal lighting. My fellow villagers were more cattle. At that time, he was painting PCBs. Later, we did a lot of experiments together, clocks, dot matrix, music keyboard, perpetual calendar (it is really too simple to think about it now).

The 21st school year passed like this. I also started to plan my own junior life. Because I was withdrawing from the electronic association at that time, it was not realistic to want to participate in the electronic contest later, so I and the old seven (my fellow) Prepare juniors to develop some small projects, proficient in PROTLE, (recommended Tiger Studio's protel99 series 4) proficient in C51 and other goals, the first product we partnered to is the temperature collection of DS18B20, but unfortunately, only one way at the time And the hardware circuit is also very simple, remember that the DS18B20 we bought at the time was read in the book, 10 dollars a, we are poor, so only used one to do the experiment, it is difficult to write the program, see DATAsheet That is really a book of heaven, (at the time there was no level 4), the Internet is not convenient, the computers in the dormitory are used to play games for roommates, and that is not the place to learn, the lab is not ours. Waiting for someone to enter, I and the old seven rented a house next to an Internet cafe outside, the floor of the house is really "shopped" with a universal board, two people are responsible for checking information, one System responsible for the test program, so, after more than a month and only then DS18B20 thoroughly understand and had no concept of products in the market, and the product can not be used in industry, so praise himself speak, and what the project, Kazakhstan. But this time we really improved our ability, especially the ability to look at the DATAsheet, but at that time we did not know that someone has already made the program, we go to COPY, it is OK! I have been saying that I have to do a lot of things and I have never done it.

After doing this, we went to the wireless transceiver. At that time, we used the RF-01 and RF-02 modules. Nanchang did not buy it. We specially invited people to bring it in Shenzhen, which made us both eat noodles for several months. Since then we have used a communication interface protocol such as 232, 485. At this point, my university's electronic history is basically over, and only the old seven and one person have been insisting.

Third, a sublimation of summer vacation

In the summer of 2003, one day I was in class. One classmate in my class told me that Lao Bao was looking for me. Actually, I was still very close to Lao Bao. I went to his office. He said that the summer school should have another MCU. The class, this time I also talked about PROTEL and C51. At that time, I wanted to have a good class, but the tuition was too high. But Lao Bao actually told us that we could be a tutor. I was so happy that I immediately called my mom and said that I would not go home this summer. I have to do a project with my teacher. My mom gave 600. Block living expenses. So I started my summer camp training life!

Nanchang's summer is hot, and there are more than 40 degrees every day. We are in a small classroom. Fortunately, the classroom has air conditioning, but sleep is not so good. In a big room, 20 people are sleeping on the floor, sometimes old. Bao will come to us to sleep, ha. So we all admire him. At the time, I really started to think that Lao Bao became my idol. At that time, I was responsible for the small class at night. The old seven was responsible for the management of IC, and project management. I remember that we did The AT89C2051's stopwatch design is accurate to 0. 01 seconds, and also made "AT89S51 based stepper motor control" "AT89C51 based MP3 design" and so on.

At that time, we were really tired, but we worked every day until 1 am. It was during this time that I felt that my organizational, communication and management skills were more important. The professional ability was sublimated. That is also the most memorable summer vacation in my life. I have reached the extreme in life, working hard to the extreme, but emotionally sad. But I am still very grateful for that experience.

Fourth, the interview in the small test knife

Later, when we started to look for a job and remember to train others, I said that if you can do three things in college and you can answer three questions when you leave the school, you can graduate. The three things are: Learn a course, know a mentor, and find a knower. The three questions are: What kind of work do I want to do? What kind of work can I do? How should I go to work? However, I only did two things and answered two questions. In order to find a job, we started to position ourselves. We have to do R&D work. The ideal job is an engineer. At present, it is more realistic to find an engineer R&D assistant. This is our business. There is no problem, so we have done it ourselves. I sorted out the things, wrote a report for each, took a photo, and I was proud of the product. We took the time to do it with the PCB. After such preparation, we also let Lao Bao help to see if there is any suitable, finally the opportunity to come, Shenzhen has a company called the bank number system, to recruit software engineers, and the platform is C51, work experience for more than one year Fortunately, there is an introduction of Lao Bao. The chief engineer over there came over to interview us. When we interviewed, we talked about our own experiences and used products to prove it. When the chief engineer asked us when we could go to work? .......

But then the engineer asked me a question, "If you choose one of them, how would you choose?" I replied: "If you want to choose a technician and choose either one, I think the old seven More suitable than me; if you want to choose a technical and support staff and choose either one, I think I am more suitable; but the kind of work that we have formed over the past few years is irreplaceable by anyone."

So we went to the city that I knew when I was young. Just as the chief engineer said that we really chose one, I went to the security department and he went to the system department.

As I said, now I ran, came to a company in Beijing to do my IC technical support, and it was really after this that I discovered that isolation can not only use optocouplers, but also use magnetic isolation. It is the series of magnetic coupling isolation products that I am promoting now, which is used to replace optocouplers.

In fact, more growth is summed up in the future work. I will write it next time, and I have a summary of the knowledge that I think the electronic personnel should master. I have not finished it. I will send it out in a serialized way. Hope Useful to everyone!

V. Degeneration in work

After arriving in Shenzhen, I was assigned to the Security Department and was temporarily responsible for the after-sales technical support of the products. It can be said that this work is different from the research and development I imagined. It is good after-sales technical support, and it is not good to hear. The whole repairman, but my teacher once told me that he said that only by doing a good job can you achieve great achievements. If you go to a big factory, you should start from the grassroots, if you enter the company. Also must start from scratch. At that time, I thought that what he said was right, so I was very happy to repair the board every day. I was naturally relieved to do things. In the face of the dozens of pages of circuit diagrams, I realized that my previous things were really pediatrics. The original consideration was too simple, and there was no consideration that the product was to be circulated to the market. Consumer recognition was the only way to test the engineer's products. That is, from that time on, there was the concept of the market. During the months of the revision, I learned a lot of knowledge that I could not learn at school, such as the clever use of zero-ohm resistors and various components. Test methods, and more ingenious use of components. The most impressive thing is that once I repaired the main control board, I found a signal that generated a signal when the signal was generated. When I went to the MCU, there was no signal. After the investigation, it was found that the line was broken, so I used the flying line. After the connection, the batch of boards was quickly repaired, and then a report was written, saying that there were problems with the batch of PCB board lines, and should contact the supplier. Originally thought that this was over, but after all the plates were hit back, it also caused a lot of customer dissatisfaction. It happened because of that board flying line. (Of course these are too naive mistakes now. )). There is no way to check one by one later. After finding the breakpoint, the knife is used to cut the line, covered with a layer of tin, and finally covered with a layer of paint. After that, I finally got a concept of a product in my heart. Experience like this has been learned too much in the work, and I will not make a statement here.

Six, crazy people learn crazy English

From small to large, English has always been a pain in my heart. When I was in high school, I wrote on the desk that "I don't eat grass, why do I learn the word 'sheep'." However, when I arrived at the university, I found out that the most popular place for PLMM was englishconer. So for a great dream that I have had since I was a child, I started a crazy English study. At first, a senior student took us and shouted. Anyway, this person has become accustomed to the feeling of "the cusp of the cusp", so at that time it became the most "shameless" person. Later, after the senior student left, I took over his position and established the "Crazy English Speaking Training Camp". And as the battalion commander, lead a group of people to "call out your inferiority, shout out your self-confidence" and shouted for three months, and finally there was only one person---that is me, when the sophomore is over, I am After attending a "Crazy English Training", the team was further developed from zero to dozens. They were also invited by the first-grade D students to become their counselors. After the team was disbanded, I organized a "crazy team" of more than 30 people. From the new concept English 1 to 3, I never dared to speak to the present without "dare", because someone would ask "Haveyoubeenabroad" in an opening? "(Have you been abroad?). I will say "NO, Iamlearningcrazyenglish." This is something that I didn't write last time.

Seven, I am with Wafer

After working deeply for more than a year, I suddenly saw an article about the career planning of electronic engineers, which caused me to ponder. If this continues, I will have three ways to go after three or five years. Go to Huawei, ZTE or Ericsson, Motorola and other large enterprises for further study; second, do their own products, open the company to single-handedly; third, go abroad. But I thought about these three roads that are not suitable for me. I am not a very practical person, and my IQ is really not high, so I bid farewell to Shenzhen, came to Beijing to choose the position of IC sales engineer, on the tenth day of Beijing I received the Wadzhitong Interview notice, the interview was very good, I was notified to work on the third day, this time I faced the product of ADI's magnetic coupling digital isolator, said that I have faced so many electronic devices, no one can cause me. Interest comes, but this series has done it. First, its high cost performance, second, its prospects in the Chinese market.

The other one is my boss, only 26 years old, 19 years old graduated from the Electrical Engineering Department of Tsinghua University with excellent results, I can finally work with my legendary genius, this is true for me who is not high IQ. It is a temptation.