一、 Simulation is a model based fitting.

Simulation is the process of simulating an abstract model of the original system, without the need to actually do what the real system needs to do. Therefore, it actually does not have the functions of a real system, and when a certain function is executed, it is usually not necessary to output the result of the function execution, but only to record the state changes caused by it in the simulator. Therefore, it is usually used for model validation in the early stages of design.

Simulation is implemented using software.

二、 Simulation

Simulation is imitation based on functionality.

Compared to simulation, simulation goes further. Simulation means using hardware to simulate how chips run at almost real-time speed. This hardware enables designers to speed up the simulation process, which is a feature of traditional simulation software. For very high-performance chips, especially in critical mission applications, this is crucial.

三、 Hardware design has become an important link in the development process of modern electronic products. Hardware design not only determines the functionality and performance of electronic products, but also directly affects the stability, reliability, and cost of products. This article will explore the basic content of hardware design, including the following aspects.

1. Requirement analysis and planning

The first step in hardware design is to conduct requirement analysis and planning. The main task of this stage is to clarify the hardware design requirements, including functional requirements, performance requirements, cost requirements, etc. By analyzing and planning these requirements, clear directions and goals are provided for subsequent hardware design.

2. Architecture design

Based on requirement analysis and planning, conduct hardware architecture design. Hardware architecture refers to the main components of a system and their connection methods, which determine the functionality and performance of the system. Hardware architecture design needs to consider various factors, such as system size, scalability, stability, etc.

3. Module design

On the basis of hardware architecture design, design each module. A module is an independent functional unit in a hardware system that works together to achieve the functionality of the entire system. Module design needs to clarify the functions, performance parameters, interfaces, etc. of each module, and select appropriate chips, components, and circuits for module implementation.

4. Circuit design

After the module design is completed, circuit design needs to be carried out. A circuit is the basic unit that implements module functions, including power circuits, signal circuits, etc. Circuit design needs to consider factors such as current, voltage, frequency, and power consumption to ensure the stability and reliability of the system.

5. Layout and wiring design

After the circuit design is completed, it is necessary to carry out layout and wiring design. Layout refers to the way components and wires in a circuit are arranged on a printed circuit board, while wiring refers to determining the direction and position of the wires connecting each component. Layout and wiring design need to consider factors such as the size of printed boards, arrangement of components, and signal transmission to ensure product quality and production efficiency.

6. Testing and validation

Finally, testing and validation are required. Testing refers to testing various parameters of hardware samples to verify whether they meet design requirements. Verification refers to simulating and testing hardware systems to check if they can function properly in practical applications. This stage also includes debugging and optimizing the hardware system to improve its performance and stability.

In summary, hardware design includes multiple aspects such as requirement analysis and planning, architecture design, module design, circuit design, layout and wiring design, as well as testing and verification. These links are interrelated and interdependent, and any mistake in one link can affect the quality and performance of the entire product. Therefore, when designing hardware, it is necessary to fully consider various factors, conduct sufficient testing and verification, to ensure the effectiveness and reliability of the design.

四、 Software design starts from the software requirements specification, designs the overall structure of the software system based on the functions determined in the requirements analysis stage, divides functional modules, determines the implementation algorithms of each module, and writes specific code to form a specific design plan for the software. Software design is the process of abstracting many things and problems, and abstracting them from different levels and perspectives. Decomposing and modularizing problems or things makes solving problems easier. The finer the decomposition, the more modules there are, and its side effect is to make designers consider more coupling between modules.