一般认为 Verilog 在系统级抽象方面要比 VHDL 略差一些,而在门级开关电路描述方面要强的多。 Verilog code 运行速度快,仿真表现好,所以网表都用Verilog。VHDL语言比较严谨,某些语法错误在语法分析阶段就可以被发现,而Verilog和C类似语言风格比较自由。Verilog适合算法级,RTL,逻辑级,门级,而VHDL适合特大型的系统级设计...
Verilog 的数据类型非常简单,都是用 Verilog 语言定义的(用户不能在 Verilog 中定义自己的数据类型)。Verilog 有两种主要的数据类型,包括 net 数据类型(用于将组件连接在一起,例如wire(最流行)、wor、wand、tri、trior 等)和变量数据类型(用于临时存储,例如reg(最流行),整数、时间、实数和实时)。 VHDL支持许多不...
VHDL 是强类型的vs Verilog 是松散类型的 VHDL 是一种非常强类型的硬件描述语言,因此必须使用匹配和定义的数据类型正确编写 VHDL 代码。这意味着如果在 VHDL 中分配时混合数据类型或不匹配信号,将会出现编译错误。另一方面,Verilog 是一种松散类型的语言。在 Verilog 中,您可以在分配时混合数据类型或不匹配信号。下...
I was wondering why there were so few sources of VHDL around but many Verilogs and went on to search the differences between the two. However, all I get are either out of date or highly biased reviews towards Verilog. It seems that some time ago Verilog was the HDL of choice but now...
However, System Verilog appears to have many VHDL features, with some very nice "data typing" capabilities borrowed from C, such as struct and union. It appears that struct and union are a tad bit more flexible than the VHDL record type, which is also quite flexible. It is just that ...
CCD驱动电路的实现是CCD应用技术的关键问题。以往大多是采用普通数字芯片实现驱动电路,CCD外围电路复杂,为了克服以上方法的缺点,利用VHDL硬件描述语言.运用FPGA技术完成驱动时序电路的实现。该方法开发周期短,并且驱动信号稳定、可靠。系统功能模块完成后可以先通过计算机进行仿真,再实际投入使用,降低了使用风险性。
开发的高层描述来综合数字硬件，这样就不再需要人工做出用于硬件的设计，像是VHDL 或Verilog 这样的文件...
Well-organized documentation for hardware design and verification engineers working with Verilog, SystemVerilog, VHDL, e Language, and more.Specador is a tool that automatically generates accurate documentation from the source code.Automatically generates accurate and effective documentation from the source ...
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