Why are there few embedded system designers in the soft test?

Because embedded system designer is a difficult subject , Most people choose software designers 、 System integration project engineer and network engineer . Embedded system designers belong to computer application technology , The knowledge range of the examination is relatively wide , Including hardware and software knowledge , Software is relatively easy , But it takes more time to learn the hardware , So the exam will be more difficult .

A brief analysis of embedded system designers , In fact, embedded system designers still have great employment prospects . Of course, if it is helpful for your own employment, you can take the exam ！

The gold content is not low , For example, evaluating professional titles 、 Settlement of points 、 There are employment and salary increases …
Embedded system employment prospects
The embedded field is relatively new , At present, it is developing very fast , Many software and hardware technologies haven't appeared for a long time ( Such as ARM processor 、 Embedded operating system 、LINUX operating system ), Most people have no conditions to contact or enter the embedded industry , Not to mention the opportunity to receive professional guidance . therefore , It's difficult to step into this industry , Embedded talents are scarce , The value of the ship naturally rises .

There are many directions for embedded development , The threshold is different . Here are four major career development directions ：

1. ARM + Linux/Android Development

According to statistics , All over the world 99% 's smartphones and tablets use ARM framework . be-all iPhone and iPad All use ARM Chip , Most of the Kindle E-readers and Android The equipment also adopts this architecture . Most networks / Telecom manufacturers are actively moving their next-generation platforms to ARM On the platform , There is reason to believe that in the next few years ,ARM It will play a very important role in the industry .

Embedded system is a combination of software and hardware , To make ARM Developers fall into two main categories ：

2、 Embedded software development engineer

(1) Application development , Include Android Application development or Linux Application development (QT etc. ), At present, many people are doing it , Easy employment and good pay , Need to master C Language 、C++、java And so on .

(2) Operating system porting , More complicated ,Linux,Android etc. , Now many mobile phone manufacturers ( Like millet , meizu , LETV, etc ) The introduction of the operating system is to modify the kernel , Change skin , Employment is easy ;

(3) Bottom drive development , The introduction 、 It's not easy to go deep , Need for hardware and OS Have a deeper understanding , The development prospect is very good .

3、 Embedded hardware development engineer

(1) It's like a cell phone doing the whole circuit on the processor , It's more difficult than the introduction of single chip microcomputer , There is no shortage of money to make a technical bull .

(2)SOC, Architecture development . It is called system level chip , Also known as system on chip , It means that it is a product , It's an integrated circuit with a specific purpose , It contains the complete system and all the contents of Embedded Software . At the same time, it is a technology , It is used to start from determining the system function , To soft / Hardware partition , And complete the whole process of design .

4、FPGA Development

FPGA( Field programmable logic device ) The product has a wide range of applications , Including communication 、 Consumer electronics 、 Automotive electronics 、 Industrial control 、 Test measurement, etc . And the change of application also makes FPGA The evolution trend of products in recent years is more and more obvious ： One side ,FPGA The supplier is committed to using the most advanced technology to improve the performance of the products , Reduce the cost of the product ; On the other hand , More and more general IP( intellectual property right ) Or customized IP By introducing FPGA in , In order to meet the requirements of customers' rapid product launch .

FPGA Compared with the traditional PC、 The development of single chip microcomputer is very different .FPGA Mainly parallel operation , In hardware description language ; Compared with PC Or SCM ( Whether von Neumann structure or Harvard structure ) There is a big difference in the sequential operation of , Also contributed to the FPGA Getting started with development is difficult .

Tips for embedded system designers
Characteristics of the morning question

The topic of the morning exam is 75 Multiple choice questions , One point for each question . In general, these questions can be divided into two parts: public questions and professional questions . These questions all pay attention to the examination of basic theoretical knowledge , It involves a wide range of contents , And there are many questions that are Cross chapter and multi knowledge points comprehensive examination , Therefore, the morning question is a survey of the degree of mastery of the candidates' basic knowledge points

Features of afternoon questions

There are not many topics in the afternoon , But it's more difficult , More flexibility , The scope of examination is wider . According to the requirements of the outline , In the afternoon, the test questions focus on the fact that a qualified embedded system designer should be able to , Conduct demand analysis , Organize and guide embedded system developers to implement embedded system interface circuit design , Write and debug programs , And analyze the underlying problems of software and hardware in the system

1、 Be familiar with the teaching materials and the examination outline 、 Interpretation and Analysis , Combined with the real problems over the years and the embedded development trend , Classify the test sites of the outline , Find out the rules of regular examinations and important knowledge points .

2、 Study the tutorial pertinently . In the process , You should read the tutorial 3～5 All over , Write down the important contents or things that need to be remembered in a notebook in simple language , Review what you have outlined before

3、 Brush the question bank over the years , Time is tight , task . Brush more real questions over the years , Looking for a regular , Summary review . You can also combine the content you don't understand or the tutorial to describe the ominous places , You can find materials other than tutorials to supplement , Make full use of the convenient network resources .

4、 Check for defects and make up for omissions , Adjustment status . Then according to the course catalogue and the real test site , Recall the relevant content before , Repeat the previous mistakes , Do more 、 Many want to , Try not to miss .

5、 Although the exam is difficult , The exam content is also very wide , But there are primary and secondary . As long as you analyze the outline and the real problem well , Grasp the key points and the direction of examination , Spend time and energy reviewing , I'm sure I can get the certificate steadily ！