Resolving STM32 ARM GCC Compilation Issues: Fixing Library and Spec Discrepancies скачать в хорошем качестве

Resolving STM32 ARM GCC Compilation Issues: Fixing Library and Spec Discrepancies

Discover how to resolve issues with STM32 ARM GCC compilation when facing library and specification mismatches. Learn effective strategies to ensure your toolchain works seamlessly. --- This video is based on the question https://stackoverflow.com/q/75067918/ asked by the user 'yo3hcv' ( https://stackoverflow.com/u/1734108/ ) and on the answer https://stackoverflow.com/a/75067958/ provided by the user 'Tom V' ( https://stackoverflow.com/u/13001961/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: stm32 arm gcc compile with wrong libraries or specs Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Understanding STM32 ARM GCC Compilation Issues When working with the STM32 microcontroller series, developers often find themselves using various toolchains and IDEs. However, when building from STM32CubeIDE, developers experience smooth sailing, but things can go awry when attempting to build outside the IDE using the same toolchain. This can lead to problematic issues, such as encountering a HardwareFault handler, which raises concerns about the correctness of compiler flags and library specifications. In this guide, we will discuss common problems faced during this process and provide an effective solution to ensure your compilations succeed. The Problem A user reported issues when compiling code using the STM32 toolchain outside of STM32CubeIDE. By comparing the build logs, it became evident that certain library paths and specifications differ from those used by the IDE: The IDE used the path ../lib/gcc/arm-none-eabi/10.3.1/thumb/v6-m/nofp/crti.o The user's build was using thumb/nofp/crti.o The user also noticed that the IDE included additional flags such as -mcpu=cortex-m0plus while the user’s flags seemed deficient. This discrepancy led to incorrect linker choices and library selection, thereby causing the compilation failures. The Solution To fix the compilation issues related to library and specification mismatches, follow these straightforward steps: 1. Ensure Correct CPU Architecture Flag One of the most critical aspects is specifying the correct CPU architecture. When compiling for STM32, it is essential to include either: -mcpu=cortex-m0plus or -march=armv6-m These flags communicate the specifics of your target CPU to the compiler, ensuring that the right libraries and optimizations are used during the build process. 2. Compare Compiler and Linker Flags It is vital to ensure that your compiler and linker flags match those used in the STM32CubeIDE environment. Below are the recommended flags for optimal compilation: IDE flags: [[See Video to Reveal this Text or Code Snippet]] Suggested user flags: [[See Video to Reveal this Text or Code Snippet]] 3. Verify Library Paths Double-check that your library paths point to correct directories. In some instances, the linker might pick up libraries from unintended locations, leading to further complications. Make adjustments to your environment or compiler settings to ensure consistent paths. 4. Test Incrementally Once you've made the necessary adjustments, begin your compilation process again. Use verbose commands to log what libraries are being chosen, and make incremental changes where needed. Conclusion Resolving compilation issues with STM32 ARM GCC outside of STM32CubeIDE often involves attention to specific compilation flags, architecture specifications, and library paths. By clearly defining the target CPU architecture and aligning your compiler/linker flags with those used in the IDE, you can streamline your build process and avoid common pitfalls. Should you encounter further issues, consult documentation related to the STM32 toolchain or seek help from the wider community. Good luck with your development!