Worked on the OpenSiFli/SiFli-SDK repository to resolve a critical build error affecting the SPI circular RX example on 56x embedded targets. Addressed the issue by adjusting Bluetooth transmission power configuration and enabling DMA for SPI operations, which improved build stability and reliability. This fix reduced integration friction for developers and streamlined onboarding for embedded systems projects. All changes were implemented in C, leveraging expertise in firmware development and embedded systems. The work was fully traceable to REDMINE-101, ensuring clear auditability and alignment with project planning. No new features were added during this period, with focus on robust bug resolution.