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文件名称:Example-8-1

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我的观点是Verilog和VHDL对于高手而言各有利弊,Verilog感觉更适合于RTL(寄存器传输级)的描述,而VHDL更适于System级的建模。

但是初学者强烈建议学习Verilog,更容易入手些,但是学习过程中一定要注意下面一点,毕竟国内外大公司现在大都采用Verilog是有其原因的。



l FPGA/CPLD、ASIC的逻辑设计所采用的硬件描述(HDL)语言是同软件语言(如C,C++等)是有本质区别的!虽然Verilog很多语法规则和C语言相似,但是Verilog是硬件描述语言,它的本质作用在于描述硬件。虽然它使用了C语言的形式,但是Verilog描述的硬件的抽象,它的最终实现结果是芯片内部的硬件电路。所以评判一段HDL代码的优劣的最终标准是:其描述并实现的硬件电路的性能(包括面积和速度两个方面)。初学者,特别是由软件转行的初学者,片面追求代码的整洁,简短,这是错误的!是与评价HDL的标准背道而驰的!正确的编码方法是,首先要做到对所需实现的硬件电路“心有成竹”,对该部分硬件的结构与连接十分清晰,然后用合适的HDL语句表达出来即可。-Modular Design  Example-8-1
(系统自动生成,下载前可以参看下载内容)

下载文件列表

Example-8-1/Modular_Design/Imp_modules/module_a/module_a.cel
Example-8-1/Modular_Design/Imp_modules/module_a/module_a.edf
Example-8-1/Modular_Design/Imp_modules/module_a/module_a.ngo
Example-8-1/Modular_Design/Imp_modules/module_a/module_a.ucf
Example-8-1/Modular_Design/Imp_modules/module_a/netlist.lst
Example-8-1/Modular_Design/Imp_modules/module_a/top.bld
Example-8-1/Modular_Design/Imp_modules/module_a/top.mrp
Example-8-1/Modular_Design/Imp_modules/module_a/top.ncd
Example-8-1/Modular_Design/Imp_modules/module_a/top.ngd
Example-8-1/Modular_Design/Imp_modules/module_a/top.ngm
Example-8-1/Modular_Design/Imp_modules/module_a/top.ngo
Example-8-1/Modular_Design/Imp_modules/module_a/top.pcf
Example-8-1/Modular_Design/Imp_modules/module_a/top_ngdbuild.nav
Example-8-1/Modular_Design/Imp_modules/module_a/top_routed.dly
Example-8-1/Modular_Design/Imp_modules/module_a/top_routed.ncd
Example-8-1/Modular_Design/Imp_modules/module_a/top_routed.pad
Example-8-1/Modular_Design/Imp_modules/module_a/top_routed.par
Example-8-1/Modular_Design/Imp_modules/module_a/top_routed.twr
Example-8-1/Modular_Design/Imp_modules/module_b/module_b.ngc
Example-8-1/Modular_Design/Imp_modules/module_b/module_b.ucf
Example-8-1/Modular_Design/Imp_modules/module_b/netlist.lst
Example-8-1/Modular_Design/Imp_modules/module_b/top.bld
Example-8-1/Modular_Design/Imp_modules/module_b/top.mrp
Example-8-1/Modular_Design/Imp_modules/module_b/top.ncd
Example-8-1/Modular_Design/Imp_modules/module_b/top.ngd
Example-8-1/Modular_Design/Imp_modules/module_b/top.ngm
Example-8-1/Modular_Design/Imp_modules/module_b/top.ngo
Example-8-1/Modular_Design/Imp_modules/module_b/top.pcf
Example-8-1/Modular_Design/Imp_modules/module_b/top_ngdbuild.nav
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.dly
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.ncd
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.pad
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.par
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.twr
Example-8-1/Modular_Design/Imp_modules/module_b/top_routed.xpi
Example-8-1/Modular_Design/Imp_modules/module_c/module_c.edf
Example-8-1/Modular_Design/Imp_modules/module_c/module_c.ngo
Example-8-1/Modular_Design/Imp_modules/module_c/module_c.ucf
Example-8-1/Modular_Design/Imp_modules/module_c/netlist.lst
Example-8-1/Modular_Design/Imp_modules/module_c/top.bld
Example-8-1/Modular_Design/Imp_modules/module_c/top.mrp
Example-8-1/Modular_Design/Imp_modules/module_c/top.ncd
Example-8-1/Modular_Design/Imp_modules/module_c/top.ngd
Example-8-1/Modular_Design/Imp_modules/module_c/top.ngm
Example-8-1/Modular_Design/Imp_modules/module_c/top.ngo
Example-8-1/Modular_Design/Imp_modules/module_c/top.pcf
Example-8-1/Modular_Design/Imp_modules/module_c/top_ngdbuild.nav
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.dly
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.ncd
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.pad
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.par
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.twr
Example-8-1/Modular_Design/Imp_modules/module_c/top_routed.xpi
Example-8-1/Modular_Design/Imp_top/netlist.lst
Example-8-1/Modular_Design/Imp_top/ngd2ver.log
Example-8-1/Modular_Design/Imp_top/ngd2vhdl.log
Example-8-1/Modular_Design/Imp_top/top.alf
Example-8-1/Modular_Design/Imp_top/top.bld
Example-8-1/Modular_Design/Imp_top/top.cel
Example-8-1/Modular_Design/Imp_top/top.edf
Example-8-1/Modular_Design/Imp_top/top.fnf
Example-8-1/Modular_Design/Imp_top/top.mrp
Example-8-1/Modular_Design/Imp_top/top.ncd
Example-8-1/Modular_Design/Imp_top/top.nga
Example-8-1/Modular_Design/Imp_top/top.ngd
Example-8-1/Modular_Design/Imp_top/top.ngm
Example-8-1/Modular_Design/Imp_top/top.ngo
Example-8-1/Modular_Design/Imp_top/top.pcf
Example-8-1/Modular_Design/Imp_top/top.sdf
Example-8-1/Modular_Design/Imp_top/top.ucf
Example-8-1/Modular_Design/Imp_top/top.v
Example-8-1/Modular_Design/Imp_top/top.vhd
Example-8-1/Modular_Design/Imp_top/top_constraints.ucf
Example-8-1/Modular_Design/Imp_top/top_ngdbuild.nav
Example-8-1/Modular_Design/Imp_top/top_routed.dly
Example-8-1/Modular_Design/Imp_top/top_routed.grf
Example-8-1/Modular_Design/Imp_top/top_routed.ncd
Example-8-1/Modular_Design/Imp_top/top_routed.pad
Example-8-1/Modular_Design/Imp_top/top_routed.par
Example-8-1/Modular_Design/Imp_top/top_routed.twr
Example-8-1/Modular_Design/Imp_top/_fplan.ucf
Example-8-1/Modular_Design/PIMs/module_a/module_a.ncd
Example-8-1/Modular_Design/PIMs/module_a/module_a.ngc
Example-8-1/Modular_Design/PIMs/module_a/module_a.ngm
Example-8-1/Modular_Design/PIMs/module_a/top.ngc
Example-8-1/Modular_Design/PIMs/module_b/module_b.ncd
Example-8-1/Modular_Design/PIMs/module_b/module_b.ngc
Example-8-1/Modular_Design/PIMs/module_b/module_b.ngm
Example-8-1/Modular_Design/PIMs/module_b/top.ngc
Example-8-1/Modular_Design/PIMs/module_c/module_c.ncd
Example-8-1/Modular_Design/PIMs/module_c/module_c.ngc
Example-8-1/Modular_Design/PIMs/module_c/module_c.ngm
Example-8-1/Modular_Design/PIMs/module_c/top.ngc
Example-8-1/Modular_Design/syn_modu

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