Follow our official account and reply with “Introductory Material” to get a comprehensive guide from beginner to advanced on microcontrollers The development board will guide you, and we will help you soar Author | Wujì (WeChat:2777492857) The full text is about2253words, and reading will take about 10 minutes Previously, someone asked a rather amusing question: … Read more
Modbus TCP is a traditional and widely used communication protocol that is supported by numerous intelligent devices. Siemens’ S7-200SMART, 1200, and 1500 series all provide free support (while the 300 and 400 series incur high fees), and they are presented in the form of a standard library, making operation quite convenient. Next, I will briefly … Read more
Modbus–The Common Language of Industrial Communication Why Do We Need Modbus? —— How the Common Language of Industrial Communication Ends the “Babel Tower Dilemma” 1. The Era Before Modbus: The “Babel Tower Dilemma” of Industrial Communication In the factory workshops of the 1970s, the dialogue between equipment was like a chaotic “Babel Tower”: Device A … Read more
About Pwndbg Pwndbg is a GDB plugin specifically designed for security vulnerability analysis. This tool greatly simplifies the difficulty researchers face when using GDB for vulnerability analysis and debugging. It primarily focuses on the functionalities required by software developers, hardware hackers, reverse engineers, and vulnerability analysts. The original GDB is not suitable for reverse engineering … Read more
About Pwndbg Pwndbg is a GDB plugin specifically designed for security vulnerability analysis. This tool significantly simplifies the difficulty researchers face when using GDB for vulnerability analysis and debugging. It mainly focuses on the features required by software developers, hardware hackers, reverse engineers, and vulnerability analysts. The original GDB is not suitable for reverse engineering … Read more
In today’s wave of digitalization, the power industry is undergoing unprecedented changes. With the advancement of smart grid construction, power data is experiencing explosive growth, and business complexity is increasing. Meanwhile, in the context of a complex and changing international situation, achieving technological independence and control has become a critical task for corporate development. A … Read more
❝ Written by: Wanli Xing [email protected] Date: January 21, 2025 ❞ 「Environment Description」 Operating System: Anolis OS 8 Kernel: 4.18.0-477.13.1.0.1.an8.x86_64 MongoDB Version: 7.0.16 Dedicated User for Running Program: apprun (can be replaced as needed, the document includes user creation methods) Dedicated Directory for Running Program: /apprun (can be replaced as needed, ensure the directory ownership … Read more
We received a question from a bioinformatics beginner marathon student, what should we do!!! Of course, we should pamper her! The question is as follows: First, I searched for relevant information Using keywords to search in WeChat: MSigDB database glycolysis-related genes. I found an article published in October 2022 in the journal Frontiers in Endocrinology: … Read more
Debugging code can sometimes take longer than writing it. So how do we use QEMU + GDB to debug RISCV programs? To document this process, we will write the following assembly code using the ADD instruction as an example. We will put 1 into register x2, 2 into register x3, and then add the values … Read more
Last year, I had a colleague who debugged C++ programs very impressively from the command line, which made me quite envious. I planned to write an article introducing how to use gdb for debugging in the command line, but I procrastinated for a long time. This time, I can’t delay any longer. Installing GCC and … Read more