RS 232接口是现在最常用的一种通信接口.随着FPGA技术的高速发展,一些常见的接口电路的时序电路可以通过FPGA实现,通过这种设计可减少电路系统元件的数量,提高系统集成度和可靠性.详细阐述了如何通过FPGA实现RS 232接口的时序逻辑设计.%RS 232 interface is now the most commonly used form of communication interface. With the rapid development of FPGA technology, the time-sequence circuit of some common interface circuit can be achieved through the FPGA. This design can reduce the quantity of circuit components, and improve system integration and reliability. The implementation method of the sequential logic design of the RS 232 interface by means of FPGA is described.
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