51 Microcontroller

Comprehensive Practical Tutorial on 51 Microcontroller

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Comprehensive Practical Tutorial on 51 Microcontroller

Course Details: This course mainly introduces the process, methods, techniques, and design concepts of 51 microcontroller application system development through typical examples, focusing on the system design of the 51 microcontroller, combining software and hardware in a simple and understandable manner. This book comprehensively explains various technologies in microcontroller development through 26 module examples, including … Read more

Typical Applications of Jihai APM32F407

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Typical Applications of Jihai APM32F407

A PLC (Programmable Logic Controller) is a digital electronic system used for controlling, executing, and monitoring automated machinery. It is widely applied in various fields such as building equipment control, water treatment, energy, and industrial automation, forming a large market scale. With the development of the “New Four Modernizations” in automotive electronics, the growth rate … Read more

Accurate Delay Methods for 51 Microcontroller

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Accurate Delay Methods for 51 Microcontroller

There are generally two methods for implementing precise delays in the 51 microcontroller: one is hardware delay, which requires the use of timers/counters. This method can improve CPU efficiency and achieve precise delays; the other is software delay, which mainly uses loops. 1 Using Timer/Counter for Precise Delay The microcontroller system typically selects an 11.0592 … Read more

10 Essential Circuits for Mastering Microcontrollers

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10 Essential Circuits for Mastering Microcontrollers

Source: ICisC Nanjing Integrated Circuit Industry Service Center 1. Choosing Pull-up Resistors for Microcontrollers As can be seen in the reset circuit, when resistor R1=10k, RST is high, but when R1=50, RST is low. It is clear that R1=10k is incorrect, as the microcontroller remains in the reset state and cannot function at all. The … Read more

What Are the Essential Differences Between PLC and Microcontrollers?

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What Are the Essential Differences Between PLC and Microcontrollers?

Search on WeChat Technical Training Can Microcontrollers Replace PLCs? Microcontrollers cannot completely replace PLCs. Although microcontrollers can achieve similar functions through programming, they are relatively less reliable and stable compared to PLCs. PLCs are widely used in industrial control and automation due to their good programmability, real-time performance, and stability. PLCs have the following advantages … Read more

What Phenomena Occur When Microcontrollers Encounter Electromagnetic Interference?

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What Phenomena Occur When Microcontrollers Encounter Electromagnetic Interference?

In microcontroller systems, the issue of electromagnetic compatibility (EMC) is one of the most challenging to resolve. It primarily stems from electromagnetic interference (EMI) both inside and outside the system, which can easily lead to abnormal operation of the microcontroller, thereby affecting the stability and reliability of the entire system. Therefore, it is essential to … Read more

Unique Features of STM32 Low-Power Timer (LPTIM)

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Unique Features of STM32 Low-Power Timer (LPTIM)

When developing low-power products, we pay close attention to the overall power consumption of the system. So, have you looked into the LPTIM low-power timer? 1 Introduction In earlier years, the term LPTIM was rarely heard. With the increasing demand for low-power products, MCU manufacturers have introduced LPTIM timers aimed at low-power applications. Timers are … Read more

STM32 F103C8T6 Boot Configuration Tutorial

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STM32 F103C8T6 Boot Configuration Tutorial

1. What is BOOT? Most beginners are often puzzled by the term BOOT when they first encounter it. Where did this strange thing come from that requires jumper caps? Why do we need to configure it to download programs via serial port? What happens if it is not configured correctly, leading to the microcontroller failing … Read more

Introduction to Bit-Banding Operation of STM32 Microcontroller

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Introduction to Bit-Banding Operation of STM32 Microcontroller

The bit-banding operation of the STM32 microcontroller is a special memory mapping technique that allows developers to perform atomic read and write operations on specific memory bits, thereby improving the efficiency of operations on GPIO ports, registers, and individual bits of other peripherals. 1. Bit-Band Region and Bit-Band Alias Region The memory space of the … Read more

Understanding the Internal Bus of STM32 Microcontroller

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Understanding the Internal Bus of STM32 Microcontroller

The STM32 microcontroller, based on the ARM Cortex-M3 architecture, has a complex and efficient internal bus structure that supports the entire system’s data flow and instruction execution, making it a key learning point for many embedded engineers. Below, we will list the main internal buses of the STM32 microcontroller and their functions. 1. I-Code Bus … Read more