Comparison of I2C and SPI Communication Protocols In microcontroller development, peripheral expansion is an inevitable task, such as connecting sensors, displays, or memory. Both I2C and SPI are commonly used communication protocols, each with its own advantages and disadvantages, suitable for different scenarios. This article will help you understand the basic concepts, hardware connections, code … Read more
STM32 I2C Bus Communication The I2C bus is the “universal” interface in the microcontroller world, as almost all common sensors, display modules, and memory chips support I2C communication. This article will guide you through the working principles of I2C and how to implement I2C communication on STM32. What is I2C? I2C (Inter-Integrated Circuit) is a … Read more
Last year, in the second half, I designed a product (a small batch production). Some areas on the board needed an MCU for simple control.Since I am most familiar with the STM32 series, I chose the cheapest 20-pin STM32F030F4P6 for use.At that time, it was a bit over two yuan each, not the cheapest MCU … Read more
▲ For more exciting content, please click on the blue text above to follow us! Communication Methods Between Devices Generally, communication methods between devices can be divided into parallel communication and serial communication. The differences between parallel and serial communication are shown in the table below. Classification of Serial Communication 1. According to the direction … Read more
Course Details: This course mainly introduces the development process, methods, techniques, and design concepts of STM32 microcontroller application systems through typical examples. It combines software and hardware, presenting the material in a clear and understandable manner. The course covers various technologies in microcontroller development through 26 module examples, including microcontroller interface expansion, memory expansion, input/output … Read more
Snapdragon 820 Specifications The Snapdragon 820 features Qualcomm’s proprietary 64-bit architecture, utilizing four Kryo cores with a maximum clock speed of 2.2GHz, produced using Samsung’s 14nm FinFET process. It supports Quick Charge 3.0 technology and is equipped with the Adreno 530 graphics processing unit, while the DSP digital signal processor is the Hexagon 680. For … Read more
Getting Started with STM32 DSP Library As an embedded development engineer, sometimes we need to perform complex mathematical operations on microcontrollers. Don’t worry, the STM32 DSP library is designed to solve this problem! This article will quickly guide you through getting started with the STM32 DSP library to easily perform efficient mathematical calculations. What is … Read more
Using STM32 DSP Library Tutorial In microcontroller development, the DSP (Digital Signal Processing) library can significantly enhance computational performance, especially suitable for audio, image, and other signal processing scenarios. This article will introduce how to use the ARM CMSIS-DSP library on STM32 microcontrollers, helping you easily implement complex mathematical operations. Introduction to DSP Library The … Read more
The demand for embedded development programming is ever-changing. To achieve system stability and code reusability, one must aim for high cohesion and low coupling. It is generally believed that time-consuming operations cannot be executed during interrupts, as this would affect system stability. For programs with an operating system, interrupt handling can be divided into two … Read more
Learn C Language from Scratch: Basics of Microcontroller Programming The C language is the foundational language for microcontroller programming, akin to the brain language of the microcontroller, allowing our hardware devices to “understand” commands and perform operations. In today’s article, we will approach this from the perspective of beginners, introducing you to the basic knowledge … Read more