April 2026 monthly summary for nxp-upstream/zephyr focused on build stabilization for Infineon PSC3M5 devices and kit_psc3m5_evk. Implemented targeted bug fixes that address build and test failures, enabling smoother CI and board readiness. The changes improve reliability for downstream users and contribute to stable platform support across Infineon drivers and device trees.

March 2026 monthly summary for nxp-upstream/zephyr: Delivered end-to-end CAN bus integration across Infineon PSC3 family and CYW20829 devices, including Infineon CAN bindings, device tree updates, CANFD support, and a PSC3M5 EVK test overlay. Implemented PWM events support with a cross-board sample suite to demonstrate event-driven PWM usage. Refactored internal clock utilities to unify high-frequency clock handling, integrated CAN clock into peri-clock, and removed duplications to reduce maintenance burden. Added comprehensive test overlays and device-tree updates for broader hardware coverage, along with migration and board documentation updates. Overall, enabled new CAN-enabled platforms, enhanced real-time PWM capabilities, and improved maintainability, aligning with business goals of faster onboarding of devices and reliable, scalable driver code.

February 2026: Key driver and GPIO improvements across Zephyr4Microchip/zephyr. Implemented collaboration tooling and drive mode refactor for ADC/PWM drivers, and delivered robust Infineon GPIO enhancements enabling input+output modes, state retention when no init flag is specified, and pull-up validation. These changes improve maintainability, test coverage, and runtime reliability, accelerating future contributions and reducing risk in hardware integrations.

January 2026 highlights for Zephyr: Implemented consolidated Peripheral Clock Management across PWM, Counters, SDHC, and SCB-based drivers, enabling shared clocks and moved clock selection to peripherals; added Infineon PSC3m5_evK kit support with PWM via GPIO and expanded tests for PSC3m5_evk and DMA scatter-gather on PSC3/PSE84; improved DMA reliability by correcting size calculations and descriptor handling; fixed UART pinmux for SCB1 to restore UART functionality; updated CY8CPROTO-041TP board documentation for flashing/debugging guidance. These changes reduce power and complexity, broaden hardware support, and improve validation reliability.

December 2025 — nrfconnect/sdk-zephyr: DMA integration and validation for Infineon PSC3/PSC3M5 EVK. Delivered DMA support on PSC3 and PSC3M5 boards with automated test overlays validating channel length transfer and loop transfer, plus updates to board support. This work enhances data-transfer performance and reliability for the Infineon PSC3 family, reduces manual testing, and accelerates DMA-related feature development. Key commits: 30307e9fd1614f53881a3ee8de60d8836c884593; 5ca16a6696f0ec3c0a72a5a0ebba7dc859023875.

Monthly summary for 2025-11: Delivered expanded hardware platform support and CI-friendly workflows for nrfconnect/sdk-zephyr, driving business value through broader device support and maintainable code paths. Key features include CYW20829 B1 support with device-tree normalization, CYW920829 Bluetooth driver B1 support enabling builds without firmware blobs and adding warnings for missing blobs, and CYW920829M2EVK_02 board enhancements supporting multiple SoCs, new processor variants, and reorganized device trees. Also modernized SPI driver by removing deprecated device-tree references and introducing a Kconfig-driven path for Legacy HAL, and fixed I2C build issues on Infineon by correcting defines and headers and simplifying configuration. Additionally, updated MAINTAINERS to reflect new collaborators for Infineon platforms. Overall impact: broader hardware coverage, CI-friendly builds, improved maintainability, and reduced integration risk for upcoming releases.

Month 2025-10 monthly summary for zephyr project focusing on Infineon ADC enhancements and build/board maintenance. Delivered key features across Infineon HPPASS and AutAnalog ADC support, expanded board compatibility, and improved test coverage. Fixed maintainability issues by removing outdated board references in SOC and module CMake, reducing risks during future integrations and builds. The work enhances data acquisition reliability on Infineon platforms, accelerates onboarding of Infineon-based boards, and strengthens validation across driver, HAL, samples, tests, and device-tree integration.

2025-09 monthly summary for zephyrproject-rtos/zephyr highlighting delivery of Infineon HPPASS ADC support for PSC3M5 and SAR ADC driver for PSOC C3, with device tree changes and bindings; focus on business value and technical achievements.

July 2025: Delivered MPU memory permission enhancements for CYW20829 in AmbiqMicro/ambiqzephyr to enable safe memory access for userspace applications. Implemented MPU memory permissions and updated device-tree/MPU region configuration to address a prior MPU fault and enable user-configured MPU regions. Two commits (hash 99860e7339ee2fd16f037b2ad1e5d870cc2a7b00) were merged to implement the change. This work improves memory isolation for userspace apps and enables broader user-space capabilities on CYW20829.

June 2025 monthly summary for the nrfconnect/sdk-zephyr repository. Focused on delivering secure-mode kernel timer test capabilities by introducing Device Tree Overlay files for the kit_psc3m5_evk board and adjusting memory partitions to support increased requirements for the timer test suites (kernel/common, kernel/timer/timer_api, kernel/timer/timer_error_case).

April 2025 performance summary for AmbiqMicro/ambiqzephyr. Delivered a targeted PWM capability to support LED control on the cyw920829m2evk_02 board and stabilized the PWM subsystem to improve reliability across devices.