VHDL Digital Circuit Design Tutorial368
Introduction to VHDL
VHDL(VHSIC硬件描述语言)是一种硬件描述语言,用于描述和模拟数字电路。它是一种高级语言,允许设计人员使用类似英语的语法来描述电路的行为和结构。VHDL广泛用于设计复杂数字系统,例如微处理器、ASIC和FPGA。
VHDL的基本语法
VHDL代码由一系列称为实体和架构的块组成。实体定义电路的接口,而架构指定电路的实现。VHDL使用关键词、标识符和运算符来定义电路的行为和结构。以下是一些基本语法元素的示例:* 关键词:预定义的保留字,例如ENTITY、ARCHITECTURE、BEGIN和END。
* 标识符:用户定义的名称,用于标识信号、组件和常量。
* 运算符:用于执行算术、逻辑和比较操作的符号,例如+、&&和
2024-11-09
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