Explanation of the embedded software industry and the development of embedded software

If you want to develop in the direction of embedded software, the most common direction is the direction of embedded Linuxarm, and I think there are about 3 stages in this direction:

1. Embedded Linux upper-layer applications, including GUI development for QT.

2. Embedded Linux system development.

3. Embedded Linux driver developmentThe embedded operating systems are Linux, Wince, VXWORKS and so on.

Linux is open source and free, and its source** is open, which is more suitable for us to learn embedded. So if you want to study on your own, you can try the following routes:

1) C language is the strongest of all programming languages, single-chip microcomputer, DSP, and various chips like ARM can be programmed in C language), so it must be very proficient.

2) The principle of operating system is required, if you are a computer major graduate, it doesn't matter, if you are a non-computer major, you must find a relatively simple computer principle book to take a look, what is called "process", "thread", "system scheduling" and other basic problems to figure out.

3) The Linux operating system is written in C, so you should also learn Linux programming first, only if you can apply it, you can take a closer look at the essence of its kernel.

4) Understand the architecture, principle, and assembly instructions of ARM, we generally rarely write assembly in embedded development, but the minimum requirement is to be able to understand ARM assembly.

5) When transplanting the system, you need to start with the bottommost bootloader, then the kernel port, the file system port, etc. The dependence on the hardware of the porting part is very large, and the configuration steps are relatively complex, and there is not much detailed information.

6) Drive development.

Linux driver design is both a challenging area and a broad one.

The essence of Linux driver design belongs to the category of Linux kernel programming, so there is a need for Linux kernel and kernel programming. Before you study, you need to understand the composition of the Linux kernel, because each part needs to be studied in detail enough to expand into a thick book. The above is just a rough framework, and there are many things involved in the actual development, such as:

Cross-compilation, makefile, shell scripts, etc., so the learning cycle is long, the threshold is high, and self-learning requires strong learning ability and professional skills. As long as you can persevere, you will definitely succeed!

Embedded software development is a type of software development.

Embedded software and embedded system are inseparable, embedded software is based on embedded system design software, is a kind of computer software.

The development of embedded system is mainly divided into three parts: overall system development, embedded hardware development and embedded software development.

The overall process of embedded software development is divided into demand analysis, software outline design, software detailed design, software implementation and software testing, the software development of embedded systems, mainly the software implementation part, can be divided into two parts: compilation and debugging, and embedded software development is mainly for the software development of CPUs with limited computing power.

Embedded software is the operating system and development tool software embedded in the hardware, and its relationship in the industry is embodied in: chip design and manufacturing, embedded system software, embedded electronic equipment development and manufacturing.

Embedded software and embedded system are inseparable, embedded system is generally composed of embedded microprocessor, peripheral hardware devices, embedded operating system and user application four parts, used to achieve the control, monitoring or management of other equipment and other functions. Embedded software is software based on embedded system design, it is also a kind of computer software, which is also composed of programs and their documents, and is an important part of the embedded spine defense system.

There are several main research directions in embedded software development:

1.ARM + Linux Android development

99% of the world's smartphones and tablets are powered by the ARM architecture. All iPhones and iPads use Arm chips, as do most Kindle e-readers and Android devices. Most of the leading network and telecom manufacturers are actively migrating their next-generation platforms to the ARM platform, and there is reason to believe that ARM will play a significant role in the industry in the coming years.

2.FPGA development

FPGA (Field Programmable Logic Device) products are widely used in a wide range of applications, including communications, consumer electronics, automotive electronics, industrial control, test and measurement, etc. The changes in application have also made the evolution trend of FPGA products more and more obvious in recent years: on the one hand, FPGA manufacturers are committed to using the most advanced technology to improve the performance of products and reduce the cost of products; On the other hand, more and more general-purpose IP (intellectual property) or customer-specific IP is being introduced into FPGAs to meet the requirements of customers for fast time-to-market.

3.DSP development

DSP (Digital Signal Processing) is an emerging discipline that involves many disciplines and is widely used in many fields. The prospects of the global DSP market are very broad, and the DSP industry will become the sunrise industry with the most development potential in the 21st century. In recent years, the decline of DSP chip products** has enabled DSPs to rapidly expand from the military to the civilian field, such as computers, networks, mobile**, modems and disk drives, and many consumer electronics.

4.IC design

IC design (integrated circuit design), or integrated circuit design, is a discipline of electronic engineering and computer engineering, the main content of which is the use of professional logic and circuit design technology to design integrated circuits.

Embedded software development is a specialized branch at the intersection of computer science and electronic engineering, which involves designing, developing, and implementing built-in software for various types of electronic devices. These devices can be small, such as household appliances, or large, such as automobiles or industrial machinery. Embedded systems are often designed for a specific function, rather than a general-purpose computer system.

First, we need to understand what an embedded system is. An embedded system is a specialized computer system that is designed as part of a larger system, rather than as a stand-alone device. This means that embedded systems are often designed to perform a specific task, rather than providing multiple functions.

Embedded systems typically consist of two parts: hardware is physical devices, such as microprocessors, memory, and input and output devices; Software is a program that controls the operation of hardware.

The goal of embedded software development is to implement specific functions of an embedded system. This may involve writing to control hardware devices, process data, and interact with users or other systems. Because embedded systems often need to operate in resource-constrained environments, embedded software development needs to consider factors such as performance, power consumption, reliability, and security.

The process of embedded software development typically includes phases such as requirements analysis, design, coding, testing, and maintenance. Anhui Spade has been committed to developing high-quality applications to meet the ever-changing market demand. In the requirements analysis phase, developers need to understand the requirements and goals of the embedded system in order to design software that meets those requirements.

During the design phase, developers need to determine the architecture and interfaces of the software in order to connect the software with the hardware devices. During the coding phase, developers need to write based on design documents. During the testing phase, developers need to test the software to ensure its correctness and performance.

During the maintenance phase, developers need to make updates and improvements to the software to meet new requirements or fix bugs.

In general, embedded software development is a software development approach that specifically addresses embedded systems. It requires developers with deep knowledge of computer science and electronic engineering in order to design and implement efficient, reliable, and secure embedded systems. With the development of technology, embedded systems play an increasingly important role in our daily lives, so mastering the skills of embedded software development is very important for many engineers and scientists.

Embedded software is the operating system and development tool software embedded in the hardware, and its relevance in the industry is reflected in: chip design and manufacturing, embedded system software, embedded electronic equipment development and manufacturing.

Embedded software and embedded systems are inseparable, and embedded systems are generally composed of four parts: embedded microprocessors, peripheral hardware devices, embedded operating systems, and user applications, which are used to realize the control, monitoring or management of other devices. Embedded software is software based on embedded system design, it is also a kind of computer software, which is also composed of programs and their documents, and is an important part of embedded systems.

1. Embedded development refers to the development of embedded operating systems, including hardware and software under the guidance of systematic design and comprehensive research and development. In addition to the EDA research and development of temporarily separated hardware, the focus is on systematic design and software development under certain hardware conditions.

2. Software development is the process of building a software system or a software part of the system according to user requirements. Software development is a system engineering that includes requirements capture, requirements analysis, design, implementation, and testing. Software is generally implemented in some programming language.

Software development tools are usually used to develop them. Software is divided into system software and application software, and does not only include programs that can be run on a computer, but also files related to these programs are generally considered to be part of the software.