Questions about embedded systems engineering

The employment direction of embedded is actually quite wide, the bottom can do hardware development, the hardware is driver development, and then the top can be the kernel of the operating system to the system transplantation, and then the upper layer is the application, especially the development of the graphical interface. However, there is a specialization in the art industry, and you can specialize in one of the above aspects of mine, and I have run through all of this process now, and now I specialize in the driving aspect.

Embedded work, in Guangdong in the past two years is very short of people, because the development of mobile Internet and tablet computers has led to the great progress of the embedded industry, so learn to embedded, work is not hateful, look at your skills!

It's good to learn this major, learn hard, now the industry is in great demand Embedded software refers to the development tool software embedded in the hardware of the non-PC operating system, and its relevance in the industry is reflected in: chip design and manufacturing, embedded system software, embedded electronic equipment research and development and manufacturing. There are three main categories of embedded software:

Embedded operating system, embedded support software, embedded application software. The people who work on this area are embedded engineers. Compared with other software engineers, embedded is divided into two aspects: operating system and hardware, and the direction of employment is broader and deeper, and the employment opportunities and entry treatment are better than those of ordinary software engineers.

This major is very good, after coming out, it is a software company that mainly depends on how you learn, generally if you learn in college, you basically don't go to class, the reason is that you don't have actual operation, so you can go to the training center to train the actual operation, and you want to participate in the trial training of the Jiangsu Provincial Department of Education in the times, all of which are inclusive of employment You can learn about it.

1. Embedded system: is one"A dedicated computer system designed for specific applications that is fully embedded in the controlled device"According to the Institution of Electrical Engineers, an embedded system is control, monitoring or auxiliary equipment, machinery or equipment used in the operation of a factory. Unlike general-purpose computer systems such as personal computers, embedded systems typically perform predefined tasks with specific requirements.

Since embedded systems are designed for a specific task, designers are able to optimize them to reduce size and cost. Embedded systems are typically produced in large quantities, so individual cost savings can be scaled up by hundreds or thousands along with production.

2. The definition of embedded system can be understood in this way: embedded system is a system used to control or monitor large-scale equipment such as machines, devices, and factories. The generally accepted definition of embedded system in China is:

Application-centric, based on computer technology, software and hardware can be tailored, to adapt to the application system for function, reliability, cost, volume, power consumption and other strict requirements of the special computer system.

3. (1) The embedded system is user-oriented, product-oriented, and application-oriented, and it must be combined with specific applications to have vitality and more advantages. Therefore, the meaning of the above three aspects can be understood in this way, that is, the embedded system is closely integrated with the application, it has strong specificity, and must be reasonably reduced and utilized in combination with the actual system requirements.

2) The embedded system is the product of the combination of advanced computer technology, semiconductor technology and electronic technology and specific applications in various industries, which determines that it must be a technology-intensive, capital-intensive, highly dispersed, and innovative knowledge integration system. Therefore, to intervene in the embedded system industry, there must be a correct positioning. For example, the reason why PALM occupies 70% of the market in the PDA field is because it is based on personal consumer electronics, focusing on the development of graphical interfaces and multitasking; The reason why Wind River's VXWorks are used in the rover is because of its high real-time and high reliability.

3) The embedded system must tailor the software and hardware according to the application requirements to meet the function, reliability, cost, volume and other requirements of the application system. Therefore, if a relatively general software and hardware foundation can be established, and then a system adapted to various needs can be developed on it, it is a better model for the development of lead hail. The core of the current embedded system is often a microkernel with only a few ks to tens of k, which needs to be expanded or reduced according to the actual use, but due to the existence of the microkernel, this expansion can be carried out very smoothly.

In fact, the embedded system itself is a very broad term, and all the control systems with embedded characteristics combined with the product can be called embedded systems, and sometimes it is difficult to give it an accurate definition. Nowadays, when people talk about embedded systems, to a certain extent, they refer to the embedded systems with operating systems, which have been relatively hot in recent years, and this point of view is also used in the analysis and outlook of this paper.

An embedded system means a specialized computer system designed for a specific application that is completely embedded inside a controlled device, such as control, monitoring, or auxiliary equipment, machines, or equipment used in factory operations. Clan fighting.

Embedded systems are used to control or monitor large equipment such as machines, equipment, factories, etc. Application-centric, based on computer technology, software and hardware can be customized to meet the strict requirements of the application system for special computer systems such as function, reliability, cost, volume and power consumption.

The core of an embedded system consists of one or more microprocessors or microcontrollers that are pre-programmed to perform some tasks. Software on embedded systems is often temporary.