"Core board + bottom board" cooperation model

With the advent of the era of automation and digitalization, embedded products are becoming more and more popular with everyone. From consumer electronic products such as computers and mobile phones around, to medical equipment in hospitals, control equipment in factories, and even electronic equipment on satellites and spacecraft, embedded products are everywhere, and they are closely related to our lives.

Embedded products are a very broad concept. Some embedded products are the size of a house, such as some large industrial control equipment; some embedded products are only the size of our palm, such as common mobile phones and smart watches. At the same time, embedded products often have rich functions, such as entertainment, communication, intelligent control, information collection, and so on. So, under this dazzling appearance and function, what do they have in common? The core of embedded products, the central processing unit (CPU for short in English), is the internal but unified core of different manifestations of embedded products, and it is also the key to the rich functions of embedded products. From small CPU chips to all kinds of embedded products, it seems a little unbelievable, so how does the CPU become an embedded product?

Embedded products are generally divided into hardware and software. The hardware can be simply divided into three parts: CPU chip part, peripheral chip interface part and external equipment. The CPU chip part and the peripheral chip interface part are generally integrated on a circuit board called a development board; they can also be separated on multiple different functional modules. For example, the CPU chip part is made into the core board and the peripheral chip interface part is made The bottom board, the core board and the bottom board are assembled together to form a fully functional development board. The software can also be simply divided into two parts: the operating system and the application program. The four parts of the development board, peripheral equipment, operating system, and application program combine to become an embedded product with multiple functions in reality.