Month: 2026-04 — Zephyr project (zephyrproject-rtos/zephyr). Focused on extending device configuration to support M55 core and aligning HAL integration for broader hardware compatibility. No major bugs fixed this month. Deliveries establish groundwork for M55 hardware onboarding and faster time-to-market for customers.

March 2026: Delivered robust port handling, expanded multi-core support for MCXL25x, and fixed core configuration issues. Implemented fixed-index port references to support omitted/disabled ports, improving robustness and maintainability. Introduced MCXL25x AON core support and CPU1 enablement across device-tree and board initialization, including modularized DTS, cpu1-specific builds for FRDM_MCXL255, and AON SRAM range updates. Fixed CM0 core configuration for MCXL25x to ensure correct DWT usage and proper SYS_CLOCK_HW_CYCLES_PER_SEC per active core. These changes improve system reliability, enable multi-core configurations, and enhance portability across boards, delivering tangible business value through increased flexibility and reduced risk of misconfiguration.

February 2026: Delivered targeted NXP hardware support enhancements for Zephyr and expanded DMA-based test coverage on FRDM-MCXC242, complemented by a Zephyr-compatibility macro in the HAL to align with linker constraints. These changes improve early SoC enablement, driver compatibility, and testing breadth across NXP platforms, driving faster onboarding and more robust validation.

In December 2025, delivered end-to-end MCXL family support across Zephyr forks (zephyrproject-rtos/hal_nxp and nxp-upstream/zephyr). Implemented hardware control and initialization for MCXL25x-based platforms, including pinctrl, device-tree, and clock management, integrated MCXL support into HAL_NXP, and added basic FRDM_MCXL255 board support. The work enables customers to use MCXL MCUs with Zephyr, aligns with Kconfig/CMake CI, and improves scalability for MCXL-based solutions.

July 2025 monthly summary for nrfconnect/sdk-zephyr: Delivered targeted improvements to expand hardware compatibility and stabilize test harnesses. Key feature delivered: i2c_mcux_lpi2c driver now supports split-role interrupts, enabling proper interrupt handling for SoCs with separate controller and target IRQ lines, broadening compatibility across NXP devices. Major bug fixed: accel_trig sample harness corrected configuration to avoid the 'no regex patterns configured' error, ensuring reliable harness interpretation after fixture additions. Overall impact: improved cross-SOC interoperability, reduced CI/test noise, and faster integration for customers using NXP platforms. Technologies demonstrated: embedded I2C (LPI2C) driver work, interrupt architecture, test harness customization (regex and one_line types), and CI stability practices.

December 2024 monthly summary focusing on delivering a critical bug fix to the LinkServer flashing loop in telink-semi/zephyr, enabling reliable and repeatable flashing across devices. The change adjusted the MCU security state from fully secure (0xFF) to less secure (0xFE), implemented via device tree and flash configuration, enabling repeated flash cycles and reducing manual intervention. This work strengthens CI/test reliability and accelerates hardware bring-up.

October 2024 monthly summary for kholia/zephyr focused on delivering toolchain-friendly features and stabilizing test automation for MCUXp MCXC samples.