FPGA ToolsTool Introduction
CDC 同步器选型器帮助 FPGA 工程师在跨时钟域设计中快速选择正确的同步器结构：单比特信号用 2FF 同步器、多比特数据用异步 FIFO 或握手、脉冲信号用脉冲同步器，并给出 ASCII 电路草图与开源母本参考。
Key Formula / Principle
single-bit → 2FF (双触发器同步器) multi-bit → async-fifo / handshake (格雷码可 2FF) pulse → pulse-sync (脉冲延展 + 2FF + 边沿检测)
Data Processed Locally|All computations run in your browser. Images, formulas, state machine definitions, and any other input data are never sent to any server.
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