The TMPDIR podcast

Zephyr - First Experiences

Listen Later

Available on your favorite podcast platform.

  • backstory
    • working on a project using freeRTOS on STM32H743
    • a lot of work integrating things like Ethernet/USB
    • code generation has tradeoffs
    • without one week, 1 engineer working part-time had Zephyr running with most drivers working
    • Build
      • Kconfig (very granular)
      • Device Tree -> C headers
      • extensive use of Macros
      • no C++
      • differences between other RTOS models
        • most MCU tooling takes RTOS, and MCU integrates and delivers
        • Zephyr does the opposite – they take MCU HAL, and then integrate and deliver directly to developers
        • Support/Community
          • Discord
          • Github discussions
          • Shell
            • is amazing
            • proper terminal with tab completion, proper backspace support, etc
            • keeps what you are typing at bottom of screen even if there are logging messages
              • scrolling
            • list threads, memory used, %CPU, etc
            • Projects like Beagle Connect Freedom – they are piping shell over radio connection
            • Logging
              • standard levels ERR, WRN, INF, DBG
              • easy to add a logging domain in any module
              • Macros automatically apply LOG_WRN() to current logging domain
              • can change log level of each domain at runtime in shell
              • Tooling
                • well-integrated flashing
                • debugging uses the command line GDB
                • Linux connections
                • Performance
                • challenges
                  • configuration
                  • tracing code through system calls
                  • documentation is fairly good, but can be hard to find things
                  • opinion
                    • The Zephyr project is a sustainable approach as MCUs become more complex

                      • Discuss this episode at our

                      community site.

                      ...more
                      View all episodesView all episodes
                      Download on the App Store
                      The TMPDIR podcastBy TMPDIR
                      • 5
                      • 5
                      • 5
                      • 5
                      • 5

                      5

                      3 ratings

                      More shows like The TMPDIR podcast

                      View all
                      The Changelog: Software Development, Open Source by Changelog Media

                      The Changelog: Software Development, Open Source

                      289 Listeners

                      LINUX Unplugged by Jupiter Broadcasting

                      LINUX Unplugged

                      268 Listeners

                      Embedded by Logical Elegance

                      Embedded

                      190 Listeners

                      Darknet Diaries by Jack Rhysider

                      Darknet Diaries

                      8,044 Listeners

                      The Agile Embedded Podcast by Luca Ingianni, Jeff Gable

                      The Agile Embedded Podcast

                      11 Listeners