Month 2026-01 achieved two high-impact outcomes: (1) Ethernet support for STM32H7S78-DK in nrfconnect/sdk-zephyr with MAC/MDIO node config, test-overlays adjustments to avoid SRAM conflicts, and related documentation/YAML updates; (2) accuracy update for STM32H7S78-DK board documentation in zephyr to align with ST specs (external memory details and clock metrics). These changes improve testing reliability, reduce risk in production testing, and accelerate hardware onboarding.

Month: 2025-12 — Delivered cross-SOC Ethernet memory-regions management and STM32H5 Ethernet device-tree bindings for the Zephyr-based nRF Connect repository. Implemented memory-regions usage to locate ethernet buffers/descriptors in SRAM, established a default SRAM (sram2) with safe override to sram3 when available, and added #memory-region-cells plus MPU/sections-level checks to ensure correct memory mapping. Extended DTS bindings to include a dedicated h5-compatible ethernet binding, enabling proper driver matching for STM32H5 (stm32h563.dtsi/mac node) while maintaining parity with the H7 series. These changes improve portability, reliability, and performance of Ethernet on STM32 devices across the platform.

November 2025 performance summary for nrfconnect/sdk-zephyr focused on hardware integration and configuration hygiene, delivering measurable business value by enabling CAN functionality on the STM32H7S78-DK while simplifying the board configuration. The work aligns with the roadmap to improve hardware support, reduce maintenance overhead, and accelerate feature adoption across developers using Zephyr on Nordic platforms.