Worked on the analogdevicesinc/no-OS repository to enhance the reliability of SPI communication in embedded systems using C programming. Focused on DMA management for STM32 platforms, the developer addressed a specific bug that caused false timeout reports during SPI DMA operations. By correcting an integer underflow in the timeout loop, the patch improved failure detection and reporting without introducing risk to existing APIs or compatibility. The work aligned with the maintenance mode of the SPI subsystem, ensuring robust DMA-driven transfers. This targeted fix contributed to system stability and provided clearer visibility into DMA failures, supporting ongoing reliability improvements in no-OS.