Python Debugging Techniques: Quickly Identify Issues In the daily programming process, debugging code is an inevitable part. When encountering errors or exceptions, how to effectively locate and resolve these issues will significantly improve your development efficiency. This article will introduce some debugging techniques in Python, including using print statements, exception handling, the pdb module, and … Read more
1. Core Components Hardware Layer: Processor: MCU (e.g., STM32), MPU (e.g., ARM Cortex-A), DSP (e.g., TI C6000), or FPGA (e.g., Xilinx). Peripherals: Sensors, ADC/DAC, communication interfaces (UART, SPI, I2C, CAN, etc.). Power Management: Low power design (e.g., dynamic voltage scaling). Software Layer: Firmware Development: Bare-metal code or RTOS (FreeRTOS, Zephyr) based on C/C++/Rust. Driver Development: … Read more
Data types can be simple or complex, and many engineers have encountered issues due to data type mishaps, which is countless. Today, I want to casually discuss this topic, especially since I recently encountered a novice who didn’t understand the difference between INT and DINT, which made me so frustrated that I snatched the keyboard … Read more
Why Are Your Files Being Forced to Download? The key combination of two HTTP response headers that triggers the “Save As” dialog in the browser: 1Content-Type (Content-Type) This header acts like a “language translator” for files and must accurately match the file format. For example, if a PDF file is incorrectly labeled as text/plain, the … Read more
🌟 1. Program Startup: From “Forking” to “Transforming” Forking After entering a command, the Shell instantlyforks a child process, where the parent and child share resources, but throughCopy-On-Write (COW) optimization—only when data is modified do they “split”, saving time and effort! Transforming (execve) The child process calls<span>execve</span> to replace its genes: the kernel parses the … Read more
In Linux system administration and operations, we often need to run various commands and scripts. Some commands generate a large amount of output, while others may frequently report errors, affecting the readability of logs or consuming storage space. Efficiently discarding unnecessary output and error messages is a skill that Linux operations engineers must master. This … Read more
Having worked for several years, I have grown from a technical novice to someone who now considers themselves a junior expert. This journey has involved a lot of self-directed learning through various resources. Whether in forums, bookstores, or magazines, I often encounter either shallow posts from beginners or overly abstract conceptual articles. When I finally … Read more
Coresight has two main functions: debugging and tracing. 1. Debugging The debugger implements debugging functionality through DAP. 1.1. Single-Core Debugging System: One DAP, along with one AP and APBIC. External access to the DP is transformed by the DAP into AP access. The AP generates the AP bus through the APBIC, allowing access to debugging … Read more
👆 Click the blue text "Linux Armory" at the top, and select "Add to Favorites" in the upper right corner to not miss out on great articles and see valuable content first. 👆 FollowLinux Armory, to receive hardcore Linux learning materials and code. To quickly locate program issues, it is necessary to compile gdb16.2 on … Read more
Last week, I helped a colleague solve a problem with his temperature control system on the production line, which was frequently malfunctioning. After some investigation, it turned out that the variable type was not selected correctly, causing the decimal part to be truncated. This incident reminded me that we must discuss the topic of variable … Read more