What are the main considerations in the overall design of electronic product scheme development

The overall design of electronic product scheme development includes the selection of main components and the division and coordination of hardware and software functions. The overall design of the scheme mainly considers the following problems.

1. Determine the type of MCU

According to the complexity, reliability, precision and speed requirements of the electronic product development, the SCM model with reasonable cost performance is selected. There are many types and models of single-chip microcomputer. The products of different models and manufacturers are different in storage capacity, Rom medium, download mode and so on.

When selecting the model, we should consider: the performance of the selected model should meet the overall requirements of the scheme, and leave room for later update; the development is convenient, with good development tools and development environment; the market supply (including external expansion parts and devices) is sufficient for a long time; the designers are familiar with the development technology of the model, so as to shorten the development cycle.

2. Determine the sensor used

The selection of sensors is particularly important, because all kinds of sensors used in the industrial measurement and control scheme are still an important bottleneck affecting the performance of the scheme. A reasonable design of industrial measurement and control program often fails to reach the predetermined design index due to the constraints of sensor accuracy and environmental conditions.

3. The division of software and hardware functions

The important feature of SCM application scheme is the close combination of software and hardware. According to the actual situation of the application scheme, the division and cooperation of hardware and software functions are comprehensively considered.