曼彻斯特(Manchester)编码作为一种数据传输方式,在工业控制领域应用广泛。但其编码和解码基于锁相环实现,电路复杂。现介绍一种基于CPLD实现的Manchester编码器与解码器。实践证明,该设计易于与现有系统集成,实现方便,性能可靠。 Manchester encoding as a data transfer method is widely used in industrial control field. But its encoding and decoding are based on phase-locked loop, the circuit is complex. Now introduced based on a CPLD Manchester encoder and decoder. Practice has proved that the design is easy to integrate with existing systems, to achieve convenience, reliable performance.