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This article will explain in detail about the Cortex-M3 chip structure and the basic structure of CMSIS-based applications. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Figure 1. Cortex-m3 chip structure

Figure 2. Based on the basic structure of CMSIS application

CMSIS is divided into three basic functional layers:

1) access layer inside and outside the core: the access provided by ARM defines the internal register address and function of the processor.

2) Middleware access layer: defines a general API for accessing middleware, which is also provided by ARM.

3) Peripheral access layer: define the address of the hardware register and the access function of the peripheral.

On the Cortex-M3 chip structure and how the basic structure of CMSIS-based applications is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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