Stm32 printf debug, USART2 : debug printf. 配置开发环境：安装Keil插件并设置UV4路径；2. In this post, we’ll guide you through enabling printf on STM32, unlocking a new level of debugging efficiency. The STLINK embedd. Typically when working on an ST development board, the UART peripheral with RX and TX lines connected to the ST-LINK programmer/debugger is chosen for this purpose. h头文件，实现串口重定向打印；3. We can call the STM32 HAL functions (e. Learn how to create your first STM32 project using STM32CubeMX and STM32CubeIDE, configure the system clock and GPIO, and blink an LED step by step. Then you switch to Release build… 💥 HardFault 4 days ago · 文章浏览阅读625次，点赞10次，收藏22次。本文介绍了使用VS Code开发STM32项目的关键步骤：1. An article exists on this topic: How to redirect the printf function to a UART for debug messages Jan 22, 2026 · Below is a practical, step-by-step guide to using printf () on an STM32 via a serial (UART) wire, written for real projects (CubeIDE / HAL style). Jan 7, 2021 · The debug printf is one of the functionality of the Serial Wire Viewer. 📁 STM32 Architecture logique Rôle des UART USART1 : lien AT avec LoRa‑E5. g. This is the most common and reliable debugging method on STM32. An easy way to do that is to use the printf function and redirect the output to a UART for display in a terminal window. To activate printf using SWV (Serial Wire Viewer) on your ST-Link, you can see Debug an STM32 with printf using only an ST-Link. 示例演示：通过printf输出"Hello World"；4. To properly include the printf() function from the stdio library as described in the next step, a UART (or USART) peripheral must be configured to transmit the formatted string. Learn how to use printf () in STM32 to debug your code like a pro! In this video, we’ll configure retargeting to send printf output via UART to your PC. 添加日志功能：新建common类，包含debug. HAL_UART_Transmit), but sometimes it’s easier to use the standard C library functions printf, scanf, and so on. No need to access another UART port. Everything works perfectly. Ideal for anyone working with Aug 15, 2019 · Another good option is to output debug information over the serial port (UART). It took close to a month of patience to get it working. Introduction: Embarking on embedded systems development, especially on STM32 microcontrollers, can be likened to navigating a complex labyrinth. 5 days ago · Notice a printf statement was added to know if the CAN successfully transmitted data. 注意事项：包含路径设置、编译文件添加和避免 Missing declarations, incompatible peripheral configs, linker issues - I was debugging things I didn't even know existed when I started. Aug 19, 2024 · Learn to debug your STM32 devices with printf using an ST-Link debugger/programmer through SWV. ⭕ printf() Works in Debug… But Crashes in Release - The Hidden Stack Killer You test your firmware in Debug mode. However, fear not, as we unveil a potent debugging tool – the ubiquitous printf function. Nov 16, 2021 · Introduction It can be especially useful during code development to display messages in a terminal window about various system parameters to help with debugging.
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