Mianyang Embedded Hardware Engineer Recruitment

Embedded design is a huge project. Today, I will talk about several points for attention in hardware circuit design. First, let's take a look at the embedded hardware architecture.

We know that CPU is the soul of this system, and all peripheral configurations are related to it, which also highlights a feature of embedded design, and the hardware can be customized. In the design of embedded hardware, we should pay attention to the following points.

First, determine the power supply.

The function of power supply in embedded system can be regarded as the function of air on human body, or even more important: the air that people breathe contains oxygen, carbon dioxide and nitrogen, but the content is stable, which is equivalent to all kinds of sundries in power supply system. We hope to get a pure and stable power supply that meets the requirements, but due to various factors, this is just our dream. This should pay attention to two aspects:

A. voltage

Embedded systems need various power supplies, such as common 5v, 3.3v, 1.8v, etc. In order to minimize the ripple of power supply, LDO devices are used in embedded systems. If DCDC is used, it is not only big, but also its ripple is a headache.