which is determined by the drive source connected to the right side of the assignment. The value of the wire net before initialization is x (trireg-type wire net is an exception, it is equivalent to a capacitor capable of storing charge). If the drive source...
三、若<sensitive_list>中有多个变量,则可以用逗号“,”或者关键字or分隔开来。如果<sensitive_list>中的变量确实太多,Verilog给大家提供了一个偷懒的方法,那就是使用匹配符号“”,此时编译器将会完成<sensitive_list>中的元素推断。例如: always@() 或 always@* 纯时序always 纯时序always的语法如下: always@(<...
Verilog is case sensitive. There are couple of things you need to keep in mind 1. All the verilog keywords are in lower case. 2. If you use an identifier that starts with upper case, it will be different from the one in lower case....
Verilog iscase-sensitive, sovar_aandvar_Aare different. Comments There are two ways to write comments in Verilog. Asingle linecomment starts with//and tells Verilog compiler to treat everything after this point to the end of the line as a comment. ...
三、若<sensitive_list>中有多个变量,则可以用逗号“,”或者关键字or分隔开来。如果<sensitive_list>中的变量确实太多,Verilog给大家提供了一个偷懒的方法,那就是使用匹配符号“”,此时编译器将会完成<sensitive_list>中的元素推断。例如: always@() 或 ...
使用VHDL编程的时候,一定要注意,这是一种case insensitive的语言,即大小写不敏感的语言。例如如下几条信号声明的语句对于VHDL来说其实是完全一样的。 signal abc : std_logic; signal Abc : std_logic; signal ABC : std_logic; SIGnal abC : std_LoGic; ...
Everything iscase sensitive Type instances must start with A-Z, a-z, _. Can contain A-Z, a-z, 0-9, _, $ commentsbegin with // or enclosed with /* and */ 2. Data Type a. synthesizabledata types wires (nets): cannot hold state ...
always@(<sensitive_list>)begin ; end 参考例子如下: // b must be register data types always@(a)begin b = not a; end 上述例子描述了一个非门的结构,关于纯组合always程序块,有三点需要注意: 一、纯组合always程序块中的语句强烈推荐只使用阻塞赋值符号,而时序always程序块中推荐只使用非阻塞赋值符号,...
Verilog is case sensitive, if isn't a legal keyword. Please consider also that (counter>=256) never happens, because the maximum value of counter is 255. Translate 0 Kudos Copy link Reply Altera_Forum Honored Contributor II 02-06-2014 03:31 AM 724 Views Thank you sir Trans...
(Verilog is case-sensitive). Can't think of much else. You might want to file an SR. Translate 0 Kudos Copy link Reply Altera_Forum Honored Contributor II 06-29-2007 03:10 PM 2,614 Views Thanks for your reply RYSC. I just wondering whether the process of synthesis a System...