Enhanced test coverage for Nordic NRF-VBAT sensor within Zephyr RTOS by adding a new test configuration to the build_all suite, improving validation of Nordic’s voltage battery sensor and reducing risk of regressions.

March 2026 highlights: Delivered a new Battery Voltage Monitoring Sensor Driver for Nordic nRF7120 and integrated it into the Zephyr sensor framework, enabling consistent battery metrics alongside die temperature for improved telemetry and power management across Nordic devices.

February 2026 delivered stabilization and upstream-ready integration for nRF7120 and related Nordic SoCs, with memory, power, and security hardening, across sdk-nrf, sdk-zephyr, and upstream Zephyr forks. The work focused on deterministic memory layouts for key provisioning, secure entropy configuration, and comprehensive porting of nRF7120 to Zephyr subsystems, enabling upstream testing and long-term maintenance.

Monthly summary for 2026-01 focusing on NRF7120 platform integration, upstream Zephyr alignment, and build/CI improvements across the Nordic SDK and Zephyr ecosystem. Highlights include delivering platform memory service ranges integration for NRF7120, upstream Zephyr integration and code tidy, device tree refinements, cryptographic test adjustments, and alignment efforts for nRF71/nRF7120 in build systems and Kconfigs. The work enhances maintainability, accelerates upstream compatibility, stabilizes CI, and strengthens the business value of Nordic’s platform support by reducing divergence and enabling faster feature delivery.

December 2025 Monthly Summary (nRF Nordic projects) Key features delivered: - Upstream Zephyr alignment: Standardized board naming from nrf7120pdk to nrf7120dk across sdk-nrf, tests, overlays, and manifest to maintain test continuity and reduce integration mistakes when pushing to upstream Zephyr. - Nordic nRF7120 platform integration in Zephyr: Added DK board support, SoC device tree/configs, new source files, non-secure target support, TF-M compatibility updates, and CI/test framework integration for end-to-end validation. - TF-M compatibility and naming improvements in Trusted Firmware-M: Renamed PDK to DK and aligned to nrfx 4.0, removing deprecated errata header for consistency with other Nordic platforms. - Memory layout and TF-M memory range support: Updated flash layout to Nordic standards, corrected MRAM/SRAM sizes, and added a memory service header to support TF-M builds in Zephyr. - CI/test coverage expansion: Added CI tests support for nRF7120 to accelerate automated validation. Major bugs fixed: - Resolved test/build failures caused by inconsistent board naming by implementing a unified naming scheme across code, tests, and manifests, reducing push-time errors. - Addressed memory range handling for TF-M builds by aligning flash_layout.h and adding the memory ranges header to ensure correct memory mapping on Nordic platforms. Overall impact and accomplishments: - Reduced upstream integration risk and improved test continuity for Nordic platforms in Zephyr, enabling smoother contribution cycles and faster validation. - Expanded platform coverage with nRF7120 DK/SoC in Zephyr, TF-M integration, and CI/test automation, laying the groundwork for secure/non-secure builds and future DFU support. - Strengthened cross-repo coordination (sdk-nrf, Zephyr, and TF-M) and established repeatable patterns for naming and memory layout across Nordic projects. Technologies/skills demonstrated: - Zephyr RTOS, Nordic nRF7120 platform, TF-M integration, device trees and board/SoC wiring, memory layout management, CI/test automation, patch management and cross-repo collaboration.

November 2025 monthly summary focusing on key accomplishments for the nrfconnect/sdk-nrf workstream. This period centered on aligning hardware pin configurations with the Malago FPGA pinset and correcting the device-tree representation for the nRF7120 to ensure accurate hardware modeling and reliable test execution. These changes enhance test reliability, reduce hardware-configuration related failures, and improve the fidelity of testing against the latest bitstreams.

Month 2025-10 highlights focused on strengthening test coverage and ensuring dependency stability across two key Nordic/Zephyr repositories. Delivered hardware-specific test enablement for nRF7120 in Zephyr comparator driver tests and fixed a missing-file issue in the Hal Nordic module MDK 8.72.4 release, improving build reliability and hardware compatibility.

September 2025 focused on stabilizing CI for the NRF7120 platform, expanding test coverage, and accelerating hardware support through MDK upgrades across the Nordic SDKs. Delivered a CI stability fix, comprehensive nRF7120 testing enhancements (counter tests with overlays and timing adjustments; PWM and GPIO loopback tests), and updated MDK to 8.72.4 across relevant repositories to enable NRF7120 hardware support. These changes reduce CI noise, increase validation coverage, and shorten hardware enablement cycles, delivering tangible business value by improving release readiness and hardware compatibility.

July 2025 — Across four repositories, delivered features that broaden Nordic device automation, fixed critical initialization and timing issues, and strengthened test automation. Key outcomes include enabling the out-of-tree nrfutil_next runner with west flash support and integrating it into the nRF7120PDK board, correcting global_peripherals register parameters in DTS for Nordic devices, aligning FPGA pin configurations and test overlays for nRF7120, tuning NRFX core delay for reliable k_busy_wait timing on FPGA, and enhancing Twister test harnesses to consistently pass the --dev-id flag for nrfutil_next. Additionally, LFRC-based LFCLK calibration support was added to Nordic clock control to align with nrfx driver expectations. The work improves deployment automation, hardware compatibility, and test reliability, driving faster, more predictable product delivery.

Month: 2025-05 — Consolidated automated testing readiness for the nRF7120 PDK in the nrfconnect/sdk-nrf repository. Delivered a feature to enable Twister tests for CPUAPP and fixed critical UART/SPI testing conflicts to restore SPI driver test coverage, improving test automation, reliability, and early validation of hardware-software integration.

In April 2025, delivered a new NRF7120 emulator board configuration and a clock initialization workaround to improve emulator reliability and validation workflows for the nRF7120 CPU app.

March 2025: Focused on extending test coverage for the clock control driver on the nrf7120pdk within the sdk-nrf repository, delivering business value through improved validation and platform reliability.

February 2025 monthly summary for nrfconnect/sdk-nrf: Focused on enabling hardware feature configuration via Device Tree and building images for new CPUFLPR partitioning. This work reduces manual configuration steps, aligns with hardware changes, and sets foundation for secure partitioning and MPU-related features.

January 2025 (2025-01) monthly summary for nrfconnect/sdk-nrf: Implemented NRF7120 SoC support in Zephyr and established governance for the new hardware, enabling hardware pilots and ensuring licensing compliance. This delivery includes new configuration files, build definitions, Kconfig options, CMakeLists, and linker scripts; early initialization hooks and system reset configurations specific to NRF7120; and updates to license identifiers and CODEOWNERS for clear accountability.

December 2024 monthly summary focusing on security bindings and board-level TF-M readiness for Nordic nRF platforms. Delivered two high-impact features and established groundwork for secure, flexible board variants in the NordicConnect SDK ecosystem.