--- title: Working With STM32 Arm TrustZone-Based Projects in CLion description: A practical guide to working with STM32 TrustZone-based projects in CLion 2026.1 EAP. TrustZone splits MCU firmware into secure and non-secure worlds,... canonical: https://daily.dev/posts/working-with-stm32-arm-trustzone-based-projects-in-clion-hux69axpl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Working With STM32 Arm TrustZone-Based Projects in CLion | daily.dev og:description: A practical guide to working with STM32 TrustZone-based projects in CLion 2026.1 EAP. TrustZone splits MCU firmware into secure and non-secure worlds,... og:url: https://daily.dev/posts/working-with-stm32-arm-trustzone-based-projects-in-clion-hux69axpl og:image: https://api.daily.dev/og/posts/hUx69axpl.png og:image:alt: Working With STM32 Arm TrustZone-Based Projects in CLion og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Working With STM32 Arm TrustZone-Based Projects in CLion **[JetBrains](https://daily.dev/sources/jetbrains)** · 8 min read · 0 upvotes · 0 comments ## Summary A practical guide to working with STM32 TrustZone-based projects in CLion 2026.1 EAP. TrustZone splits MCU firmware into secure and non-secure worlds, isolating critical code from exposed interfaces like Wi-Fi or Bluetooth. The post covers the dual-subproject CMake structure generated by STM32CubeMX, how to configure CLion for code insight (requiring a build first), and how to set up debugging with a Generic debug server to flash both secure and non-secure binaries. Key tips include manually specifying executables in run configurations, using a custom GDB connection script to load both ELF images, disabling automatic upload/reset to avoid duplication, and being mindful of the limited hardware breakpoint count (6 on STM32L5). Instructions for disabling TrustZone on the hardware are also included. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The CLion 2026.2 Roadmap: Simplified Debugger Configuration and the Ability to Use Multiple Zephyr West Profiles](https://daily.dev/posts/the-clion-2026-2-roadmap-simplified-debugger-configuration-and-the-ability-to-use-multiple-zephyr-w-rbfe4mqyt) · JetBrains · 0 upvotes · 0 comments - [CLion 2026.2 Is Here](https://daily.dev/posts/clion-2026-2-is-here-uzu6sh4bt) · JetBrains · 2 upvotes · 0 comments - [CLion Now Supports DAP Debuggers](https://daily.dev/posts/clion-now-supports-dap-debuggers-vi8ydoms2) · JetBrains · 0 upvotes · 0 comments --- Tags: [#c](https://daily.dev/tags/c), [#devtools](https://daily.dev/tags/devtools), [#embedded](https://daily.dev/tags/embedded), [#stm32](https://daily.dev/tags/stm32) [View this post on daily.dev](https://daily.dev/posts/working-with-stm32-arm-trustzone-based-projects-in-clion-hux69axpl) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Working With STM32 Arm TrustZone-Based Projects in CLion","url":"https://daily.dev/posts/working-with-stm32-arm-trustzone-based-projects-in-clion-hux69axpl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/working-with-stm32-arm-trustzone-based-projects-in-clion-hux69axpl"},"datePublished":"2026-03-02T13:50:25.423Z","dateModified":"2026-06-04T02:15:34.593Z","description":"A practical guide to working with STM32 TrustZone-based projects in CLion 2026.1 EAP. 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