What is the difference between embedded hardware and software in embedded development?

Embedded refers to burning software directly into hardware , Instead of installing on external storage media , It's like giving a robot a soul , So as to facilitate human control . In embedded development , It is divided into embedded hardware and embedded software , Most people don't know much about the difference between embedded hardware and software , Now muwo technology will talk about what is embedded hardware and software ？ What's the difference between them ？
Embedded hardware can be divided into embedded processors and external devices . The processor is the core of the whole system , Be responsible for processing all software programs and signals of external devices . Generally speaking , Embedded hardware refers to logic circuits 、 Embedded processor 、 Micro controller 、 Storage system and hardware design skills .
Embedded software is the software designed based on Embedded System , It is also a kind of computer software , It also consists of programs and their documents , It can be subdivided into system software 、 Support software 、 There are three types of application software , Is an important part of embedded system . Embedded software can be divided into two layers , The closest thing to the hardware is the embedded operating system . The operating system is the interface of software and hardware , Be responsible for managing all software and hardware resources of the system . The operating system can also deal with external devices through drivers .

One 、 Different subjects
Embedded hardware ： Used to control the 、 A device for monitoring or assisting in the operation of machines and equipment . Protocol processing module centered on general processor , For network control protocol processing
Embedded software ： It is the operating system and development tool software embedded in the hardware .
Two 、 The content is different
Embedded hardware ： As part of a device or device , It is a control program stored in ROM Embedded processor control board in . With digital signal processor （DSP） For the central signal processing module , Used to modulate 、 Demodulation and digital to analog signal conversion .
Embedded software ： Support software is software used to help and support software development , It usually includes databases and development tools , Among them, database is the most important .
3、 ... and 、 Characteristics of different
Embedded hardware ： It is composed of embedded computer system and execution device , Embedded computer system is the core of the whole embedded system , By hardware layer 、 Middle layer 、 Composition of system software layer and application software layer . The actuator is also called the controlled object , It can accept the control command from the embedded computer system , Perform specified operations or tasks .
Power consumption of embedded processor 、 Volume 、 cost 、 reliability 、 Speed 、 processing capacity 、 Electromagnetic compatibility is restricted by application requirements . Consider the processing speed of the processor when selecting the processor 、 Technical indicators 、 Low power consumption of processor 、 Software support tools for processors 、 Whether the processor has built-in debugging tools 、 Whether the processor supplier provides evaluation board, etc .
Embedded software ： Including microprocessor 、 Timer 、 Micro controller 、 Memory 、 Sensors and a series of microelectronic chips and devices , And a micro operating system embedded in memory 、 Composition of control application software , Jointly realize such as real-time control 、 monitor 、 management 、 Mobile Computing 、 Various automatic processing tasks such as data processing . The software running on the embedded system includes embedded operating system 、 Applications 、 Drivers and some development tools . But choose a suitable operating system , The key is which development tools are provided from the operating system 、 The difficulty of porting the operating system to the hardware interface 、 Memory requirements of the operating system 、 Whether the operating system has a driver to provide hardware 、 Whether the operating system has tailorability 、 Consider the real-time performance of the operating system .
Although there are differences between embedded hardware and software , But it is also closely related , In embedded development, you need to know what is used MCU Hardware features of 、 The principle of each peripheral circuit and interface circuit ; We need to dig deep and study carefully MCU Knowledge of kernel architecture , Whether floating point processors are supported /DSP, Whether coprocessors are supported 、 Instruction data cache, etc .