关键词: RISC-V, MCU, 自编程, Flash

Abstract: The two existing Flash self-programming implementations are analyzed and found to be complex to design and implement. Under the new application background requirements, a simple and efficient Flash self-programming method is proposed, which is designed and implemented based on the RISC-V chip. The hardware design adds only a few self-programming control registers and control state machines without changing the original Flash controller architecture. The implementation method process is described in detail, and the correctness of the function is verified. The whole hardware design structure is simple and the operation process is convenient and fast.

Key words: RISC-V, MCU, self-programming, Flash