Anti-Debugging

LuatOS Development Practice: SPI Example

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LuatOS Development Practice: SPI Example

Read the latest documentation and participate:【Find Errors in Documentation and Win Prizes】 ActivityFor the latest documentation content of this article, see:https://docs.openluat.com/air724ug/luatos/app/driver/spi/ 1. Introduction SPI stands for Serial Peripheral Interface. SPI is a high-speed, full-duplex, synchronous communication bus that only occupies four lines on the chip pins: SDI (Data Input), SDO (Data Output), SCLK (Clock), and … Read more

Developing C Language Applications Using VSCode

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Developing C Language Applications Using VSCode

After setting up the C language development environment, the next step is to create a project for development. For convenience, it is generally recommended to use an IDE (Integrated Development Environment) for development. There are many development tools for C language, with the mainstream ones being Clion, Visual Studio, and VSCode. This article will demonstrate … Read more

Intermediate PLC Programming: Mastering Finite State Machine Design for Complex Processes!

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Intermediate PLC Programming: Mastering Finite State Machine Design for Complex Processes!

🔥 What Are the Limits of Traditional Logic Programming? The Magical Charm of Finite State Machines! Is your PLC program bloated due to complex process flows? Difficult to debug? Frequent failures? Is every upgrade like defusing a bomb? Today, I will reveal a programming tool known as Finite State Machine (FSM) that will help you … Read more

PLC Communication Made Easy: A Shortcut to Mastering the Modbus Protocol

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PLC Communication Made Easy: A Shortcut to Mastering the Modbus Protocol

PLC Communication Made Easy: A Shortcut to Mastering the Modbus Protocol Hello everyone, I am Lao Liu. With over twenty years of PLC programming experience, I can tell you that many beginners are most afraid of the communication part. Today, let’s talk about something practical—the Modbus protocol. It may seem complex, but it is essentially … Read more

Python 3.14: A Significant Leap in the Python Ecosystem

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Python 3.14: A Significant Leap in the Python Ecosystem

Python 3.14 has established many of its key features, and in my opinion, it is a core version that will last for many years to come. This version sets the benchmark for the Python debugging ecosystem of the era. This article will discuss the epic improvements within the Python world. Content When debugging Python code … Read more

How to Locate HardFault in FreeRTOS?

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How to Locate HardFault in FreeRTOS?

Source: WeChat Official Account 【Osprey Talks Microcontrollers】 Author: Osprey ID: emOsprey Hello everyone, I am Osprey. Due to some circumstances, this update is a bit late. However, I still strive for everyone to learn some practical technology from the Osprey official account each time, enhancing their core competitiveness. Thank you all for your continued support … Read more

Issues Caused by Frequency Offset in FPGA-PLL Outputs

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Issues Caused by Frequency Offset in FPGA-PLL Outputs

Follow and star our public account for exciting content delivered daily. Source: Online materials We are still debugging an image issue where one chip exhibits a flickering phenomenon in the output image. The system is initially defined as follows: Explanation: (1) A 24MHz crystal oscillator outputs a clock that is fed into the FPGA and … Read more

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