Click the blue text above to follow us Embedded Training – Choose Jufeng Zhilian Implementation of a PID temperature control system based onSTM32, integrating hardware configuration, PID algorithm optimization, and display module design: 1. System Architecture Design 2. Hardware Selection and Circuit Design 1. Core Component List Module Recommended Model Key Parameters Temperature Sensor DS18B20 … Read more
In recent years, with the accelerated development of domestic processors, a multi-architecture ecosystem has become a reality. How to build a unified virtualization capability across diverse hardware platforms has become a core issue of concern in the industry. Developed by the Syswonder Open Source Community (Syswonder), hvisor is a Type-1 lightweight virtual machine monitor (Hypervisor) … Read more
Using Linux Does Not Equal Localization: Don’t Let ‘Open Source Kernel’ Mislead Your Judgment of ‘Self-Control’ It is often heard around me: “Our company uses the Linux system, so that must mean we are localized, right?” This statement is half right and half wrong—Linux is indeed an important technological cornerstone of domestic operating systems, but … Read more
The Relationship Between .h Files and .c Files When referring to the programs of experts, I found that the strict programs written by others all include a “KEY.H” file, which defines the functions used in the .C file, such as Keyhit(), Keyscan(), etc.The .H file is a header file, probably meaning ‘Head’, which is necessary … Read more
In embedded system development, “Firmware” and “Software” are two concepts that are closely related yet fundamentally different. They together constitute the operational logic of a device, but they have clear boundaries in terms of hardware dependency, functional positioning, and development models — firmware is the “soul of the hardware,” responsible for bringing the hardware “to … Read more
Using the QEMU simulator to outline the ThreadX task scheduling process.0. Build ExampleCreate Task 0 and Task 1 #include "tx_api.h" #include "tx_thread.h" // Task 0 entry void thread_0_entry(ULONG thread_input){ TX_THREAD *current_thread; thread_0_counter++; TX_THREAD_GET_CURRENT(current_thread); tx_thread_terminate(current_thread); } // Task 1 entry void thread_1_entry(ULONG thread_input){ while(1) { /* Increment the thread counter. */ thread_1_counter++; while(1); }} // Create … Read more
Detailed Explanation of FreeRTOS Multitasking Switching Underlying Principles 6. Task State Transitions 6.1 State Transition Diagram Create Ready Queue CPU Execution [NEW] —–> [READY] —–> [RUNNING] ↑ ↓ ↓ ↑ ↓ [Time Slice Expired] ↑ ↓ ↓ [Waiting for Event] [BLOCKED] [Delay Waiting] [SUSPENDED] 6.2 State Transition Conditions Transition Trigger Condition Description NEW → READY … Read more
The company asked me to interface a visibility detection instrument with a product from a few years ago. The mainboard uses the STM32L051C6 microcontroller to communicate with the visibility detection instrument via RS485. In theory, this should just involve implementing a serial port data reception processing logic. However, after adding the code and compiling, it … Read more
Author: Wang Jinke College: School of Electrical Engineering Major: Rail Transit Signal and Control Grade: 2022 PART.1Introduction The course on Microcontroller Principles and Applications is offered by most majors in the School of Electrical Engineering and is characterized by its complex content and difficulty in understanding. Mastering this subject can effectively stimulate interest in learning … Read more
Analysis of the Logical Structure of the MCS-51 Microcontroller The MCS-51 microcontroller (such as the classic 8051) is a milestone design in embedded systems, with its logical structure centered around modular integration and Harvard architecture, perfectly balancing performance and cost. Below is a detailed breakdown of its logical structure: 1. Core Control Unit (CPU) 8-bit … Read more