VHDL语言是一种用于电路设计的高级语言。它在80年代的后期出现。最初是由美国国防部开发出来供美军用来提高设计的可靠性和缩减开发周期的一种使用范围较小的设计语言 。-VHDL language is a high-level language for circuit design. It appeared in the late 80' s. Was originally developed by the U.S. Department of Defense for the U.S. military to improve design reliability and reduce the development cycle of a lower use of language.