Anti-Debugging

Programming Insights for PLC Engineers: Deconstructing Complex Problems with Structured Thinking

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Programming Insights for PLC Engineers: Deconstructing Complex Problems with Structured Thinking

JZGKCHINAIndustrial Control Technology Sharing Platform Introduction As a PLC (Programmable Logic Controller) engineer, we face numerous complex control systems and engineering problems every day. Some of these issues may arise from equipment failures, while others may be due to process inefficiencies or improper program design. Regardless of the situation, we need to address and resolve … Read more

Help! C Language Almost Drove Me Crazy, But I Survived

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Help! C Language Almost Drove Me Crazy, But I Survived

Help! C language almost drove me crazy, but I survived. I was really about to break down! Learning C language is simply torturing myself! Every time I open the IDE (Integrated Development Environment), my hands tremble because I know I will face a bunch of incomprehensible error messages. Those moments that drove me crazy: Pointers? … Read more

A Guide to Avoiding Pitfalls with Content-Length in HTTP Requests

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A Guide to Avoiding Pitfalls with Content-Length in HTTP Requests

Scenario Recreation: A Frustrating JSON Parsing Issue Recently, during a project integration process, our team encountered a bizarre JSON parsing issue. Here’s what happened: The frontend team copied a normal cURL request from Chrome Developer Tools: curl -X POST https://api.ourcompany.com/v1/orders \ -H "Content-Type: application/json" \ -H "Content-Length: 187" \ -d '{"order_id":"123456","products":[{"sku":"A001","qty":2}],"remark":"Weekend Delivery"}' This request worked … Read more

JTAG Debugging – Halt and Step Execution

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JTAG Debugging - Halt and Step Execution

Through JTAG Debugging – Introduction to DAP, a DAP consists of a DP and an AP, where the AP serves as a window to access the resources behind it. In JTAG debugging, Halt and Step Execution actually control the resources of the CPU behind the AP.In STM32F4xx, the Cortex-M4 registers are controlled via AHB-AP, allowing … Read more

Detailed Usage of the Linux apropos Command

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Detailed Usage of the Linux apropos Command

Introduction <span><span>apropos</span></span> is a fuzzy search tool that can search for input keywords in all <span><span>man</span></span> pages. Compared to <span><span>whatis</span></span>, which can only search command names, <span><span>apropos</span></span> can also search descriptions. Common Options <span><span>-e, –exact</span></span>: Returns names and descriptions that exactly match the keyword <span><span>-d</span></span>: Print debug messages <span><span>-w, –wildcard</span></span>: Use wildcard to search for … Read more

Collaborative Robot Control with Siemens PLC for Automotive Welding Automation Line

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Collaborative Robot Control with Siemens PLC for Automotive Welding Automation Line

Hello friends! 👋 Today we are going to discuss a super cool topic in the industrial field—using Siemens PLC to create a collaborative robot control automotive welding automation line! 🚗🔧 Doesn’t it sound exciting, as if we can already see those robotic arms dancing gracefully on the production line? 💃🤖 Don’t rush, follow me step … Read more

Detailed Explanation of C++ Macros: Basics, Usage, and Precautions

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Detailed Explanation of C++ Macros: Basics, Usage, and Precautions

In C++ programming, a macro is a text replacement tool processed by the preprocessor, implemented through the <span>#define</span> directive. While macros can be very useful in certain scenarios, they are also controversial due to their potential side effects. This article will cover the basic syntax, common uses, drawbacks, and modern alternatives to help developers use … Read more

Setting Up a QEMU Linux Kernel (5.10.209) Development Environment

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Setting Up a QEMU Linux Kernel (5.10.209) Development Environment

Version Information Host Machine: <span>ubuntu 20.04.6 LTS (Focal Fossa)</span> Virtual Machine: <span>ubuntu 20.04.6 LTS (Focal Fossa)</span> The steps for installing the host machine are omitted, as they are no different from installing a virtual machine in <span>vmware</span>. It is important to ensure that <span>Intel VT-x</span> is enabled. If the virtual machine reports <span>This platform does … Read more

Basic Steps for CANFD Debugging

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Basic Steps for CANFD Debugging

CAN (Controller Area Network) is a serial communication network that effectively supports distributed control or real-time control. The CAN bus is a widely adopted bus protocol in automotive applications, designed for microcontroller communication in automotive environments. As company projects gradually shift towards the automotive sector, the scenarios for using CAN are increasing. This article analyzes … Read more

From Beginner to Abandonment: Why 80% of People Can’t Learn C Language? Now I Understand, No Wonder I Can’t Learn It Either~

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From Beginner to Abandonment: Why 80% of People Can't Learn C Language? Now I Understand, No Wonder I Can't Learn It Either~

“From today on, study hard and make progress every day” Repetition is the best method for memory; spend one minute every day to remember the basics of C language. 💻 From Beginner to Abandonment: Why 80% of People Can’t Learn C Language? Now I Understand, No Wonder I Can’t Learn It Either~ “C language is … Read more