Revealed! How to master GD32 MCU principles and firmware library development?

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This is a professional technical book that introduces the GD32 MCU firmware library from both the principle and practical perspectives. Through this book, you can not only quickly understand the development history of GD32 MCU and hardware-level MCU selection methods, master the methods of quickly building and debugging the basic hardware development environment, as well as the working principles and control methods of the MCU core system and peripherals, but also understand the real Project development and design process. Therefore, whether you are GD32 MCU developers, enthusiasts, or other MCU developers, you can quickly get started with MCU design and put it into practice through this book. Readers who are interested in domestic MCUs can also learn about the underlying operating principles of MCUs through this book.

This book is divided into 8 chapters:

Yingshi Technology

The full name is Shenzhen Yingshi Technology Co., Ltd., which is an electronic technology enterprise integrating the application development, solutions, ecological construction and sales promotion of domestic brand chips. The company is committed to promoting the marketization of domestic semiconductor products, developing design solutions with independent intellectual property rights based on domestic chips and realizing productization. The company aims to continuously provide customers with high-quality products and solutions and continues to work hard to achieve this.

Dong Xiao

Graduated from Xi'an Jiaotong University, and has been engaged in power electronic product research and development since graduation. He has rich experience in product definition, hardware board design, software algorithm simulation and implementation, and embedded software development. Familiar with common 8051, C28x, Corex-M, RISC-V and other architecture microcontrollers on the market.

Ren Baohong
is the regional manager of GigaDevice’s innovative technical support. He has nearly 10 years of experience in MCU embedded development and has extensive experience in customer technical support. He is the author of "MSP430 Microcontroller Principles and Applications", which has been included in the "Thirteenth Five-Year Plan" textbooks for general higher education and has been well received by universities and related technical personnel.

GigaDevice Innovation Technology Group Co., Ltd.

Jin Guangyi Product Marketing Director

This book promptly makes up for the shortcomings of Chinese MCU products in terms of monographs, and introduces chip principles and development practices in a simple and easy-to-understand manner. It can be used as an accessible technical reference for product planning and system design, and can also become a professional textbook and embedded system course. Training materials.

Shandong New Beiyang Information Technology Co., Ltd.

Wang Quanli Senior Architect

This textbook introduces the principles and applications of GigaDevice's innovative MCUs in a simple and easy-to-understand manner, and is suitable for reference by hardware designers.

1) Suitable for beginners to quickly understand the development history of GigaDevice’s innovative MCUs, as well as the key parameters for hardware-level MCU selection;

2) The introduction to the working principles and control methods of MCU basic peripherals is easy to understand, and can quickly build a basic hardware development environment and debug;

3) The examples in the book are of great reference value for project development and design.

A domestic semiconductor equipment manufacturing company

Zhao Shaoyi Chief Expert of Supply Chain System

The book's clear structure and content clearly explain the operating mechanism of GD32 MCU, providing valuable input for developers to further understand the product. At the same time, most domestic enterprises are in the process of establishing supply chain resilience, sustainable supply, and accelerating localization. The emergence of such product-specific books will effectively assist and empower grassroots development work, and its significance It is important to hope that more books introducing GigaDevice's innovative products will be published, providing a portal for the vast number of domestic market users to understand how products solve problems.

Leyard Group

Lu Changjun, Vice President and Technical Director of Leyard Group

I am very happy to see the first comprehensive and systematic introduction to domestic MCU textbooks available. This book allows school students and developers working in the MCU field to quickly grasp the principles and application methods of the domestic GD32 MCU. It is a textbook that is very closely integrated with product applications. I hope this book will be a great help in promoting the localization of chips in our country and solving the problem of chip "stuck".

Through a series of basic experiments, this book introduces the framework structure and various basic peripherals of the GD32F303 series MCU from shallow to deep, providing a program reference for readers to learn and develop this series of MCUs. The experiment list is shown in the following table:

* Note: The above only briefly lists relevant experiments, and other related derivative experiments are not listed.

All experiments in this book include design ideas, code analysis, operation result analysis and the use of related tools, explaining every detail step by step. All experiments are derived from GD32F30x series firmware library routines. It allows readers to better develop and apply this series of MCUs. At the end of each chapter, the chapter is summarized so that readers can better grasp the gist of the chapter.

The example packages and development board schematics that come with this book are all available to readers:

Most of the experiments in this book can be tested and verified on the BluePill development board. As shown in the figure below, the BluePill development board has a motherboard (baseboard) and daughter boards.

The BluePill daughter board is the GD32 MCU minimum system board, which mainly includes the MCU minimum system and USB communication and power supply modules.

The minimum MCU system in the BluePill development board mainly includes GD32F303CBT6 and external crystal oscillator circuit, pin interface circuit, NRST reset circuit, programming interface circuit, BOOT and LED circuit.

The pin interface circuit is the MCU pin interface derived from the daughter board to connect with the motherboard. The programming port is a SWD port with fewer pins and simple and convenient wiring. BOOT0 and PB2 (BOOT1) have a default 4.7kΩ resistor pulled down to VSS, that is, they will run from the main Flash after power on. If you need to enter the factory ISP Bootloader, you can power on while pressing K1, which means BOOT0 will be pulled high. electricity. LED1 is used to indicate VCC power-on status. LED1 is always on to indicate that VCC is powered on normally. LED2 is controlled by PC13. When PC13 outputs low level, the LED is on; when PC13 outputs high level, the LED is off. There is also a USB communication interface on the daughter board. As the USB module of GD32F303, it is a USBD peripheral and only supports it as a USB device. At the same time, the USB interface is converted to 3.3V through SE8533 LDO to power the MCU system.

The BluePill master board is an external hardware expansion board, which mainly includes USB to serial port circuit module, I2C EEPROM and communication circuit module, SPI Flash circuit module, CAN communication interface circuit module, ADC acquisition circuit module, button LED circuit module and MCU pin interface circuit Modules, etc., the baseboard has rich external hardware resources, which can be used for learning and experimenting with the internal and external devices of each chip.

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