2026-06-09 –, Devzone
The Mambo XiaoXin Robot uses the StarrySky C2-Pico open-source development board as its core controller, paired with ASR-PRO voice recognition module, forming a compact robotic system that integrates motion control, voice interaction, and intelligent response.
The StarrySky C2-Pico board is equipped with the RetroSoC chip independently developed by the ECOS(EDA, Chip, One Student One Chip, System) team. This chip is fabricated using the ICSprout 55 nm open-source PDK process flow and represents a technological achievement that combines the open instruction set RISC-V, open-source EDA, open-source IP, and open-source PDK. Its functionality and performance are benchmarked against the low- to mid-end products of ST’s F1 series.
Internally, the chip integrates the classic lightweight open-source RISC-V processor core PicoRV32, fully implementing the RV32IMC instruction set architecture, with a maximum clock frequency of up to 72 MHz. The chip includes 128 KB of on-chip SRAM, while the board further expands storage with 8 MB PSRAM and 16 MB SPI Flash, forming a multi-level memory system. In addition, the chip integrates a rich set of open-source peripheral drivers, including UART, SPI, I2C, PS/2, PWM, GPIO, timers, and more, meeting diverse embedded development requirements.
Haotian Yang is a senior undergraduate student at Shenzhen Technology University and a core teaching assistant of the One Student One Chip program. He is also the founding leader of the One Student One Chip Studio at Shenzhen Technology University.
His research focuses on low-power embedded RISC-V processor design, with interests in microarchitecture optimization, low-power design techniques, and SoC system integration. In addition to technical research and development, he is actively involved in the organization and operation of the One Student One Chip Shenzhen training base, university studios, and student learning communities related to open-source chip education and RISC-V talent cultivation.
Teaching assistant for "One Student One Chip", with main research directions in RISC-V processors and SoC design.