Riccardo Gandi enhanced the DMA testing suite for the pulp-platform/snitch_cluster repository, replacing a basic test with a comprehensive validation framework for 1D and 2D Direct Memory Access. He designed and implemented tests in C that cover a wide range of transfer sizes, strides, and repetitions, targeting improved reliability and early detection of DMA issues in embedded systems. By integrating these tests into the continuous integration and regression pipelines, Riccardo strengthened production safety and release confidence. His work demonstrated depth in low-level programming, embedded systems, and automated testing, resulting in a more robust and maintainable DMA validation process.