Worked on the Zephyr STM32 HAL workstream, focusing on stabilizing memory controller integration across STM32 targets. Addressed a critical compatibility issue in the zephyrproject-rtos/hal_stm32 repository by restoring missing FSMC compatibility aliases, which enabled seamless interaction between Zephyr’s memory controller driver and STM32 hardware. The solution involved aligning FSMC alias coverage with ll_fsmc.h definitions, reducing integration issues and supporting smoother downstream testing. Utilized C programming and embedded systems expertise to deliver a targeted bug fix rather than new features, demonstrating a methodical approach to driver development and repository alignment within the Zephyr ecosystem during the month’s engineering efforts.