Illegal reference to net "r",这是错误,下面是我的代码(要求是s=0输出a,s=1输出b)module mux( input[3:0]a, input[3:0]b, input s, output[3:0]r ); input a,b,s; output r; assign r=(s?a:b); always @(a or b or s) begin : mux case({s}) 1'b0 : r<=a; 1'b1 : r...
** Error: C:/altera/12.1/modelsim_ase/testask.v(10): (vlog-2110) Illegal reference to net "din". 谁枫而欢 声名远扬 12 reg类型 i白墨宸 默默无闻 1 虽然过了两年了 但是可能还是有人会犯这样的错误 我就来说一下吧你的clk应该定义为reg类型,因为在testbench中的输入端口需要寄存一下,...
Illegal output or inout port connection for port 'data_out1'. 4. 但是输入并不需要置于wire型,且如果输入需要改动,则必须是reg型的,否则会报错如下: Illegal reference to net "data_in1".
regA,F;不能省。不然会报错:Illegal reference to net "A". 因为 A 和 F 在always模块内被赋值。需要使用 reg 型数据。 另一种参数传递可以通过defparam命令来实现。 moduleDecode(s,A,F);inputs;parameterWidth=2,Polarity=2;outputA,F;regF;reg[Width:0] A;always@(s)if(! s) A=Width%2;elseF=...
reg A,F; 不能省。不然会报错:Illegal reference to net "A". 因为 A 和 F 在always模块内被赋值。需要使用 reg 型数据。 另一种参数传递可以通过defparam命令来实现。 module Decode(s,A,F); input s; parameter Width=2,Polarity=2; output A,F; ...
module2 ，并需要将module2的输出储存的时候，存储中间变量不能为reg，⽽应为wire否则将 会出现如下错误 :Illegal output or inout port connection for port 'data_out1'.4. 但是输⼊并不需要置于wire型，且如果输⼊需要改动，则必须是reg型的，否则会报错如下：Illegal reference to net "data_in1".
3.7.5 tolower()3.7.6 compare()3.7.7 icompare()3.7.8 substr(int i, int j)3.7.9 atoi(), atohex(), atooct(), atobin()3.7.10 atoreal()3.7.11 itoa()3.7.12 hextoa()3.7.13 octtoa()3.7.14 bintoa()3.7.15 realtoa()3.8 event数据类型3.9 用户定义的类型3.10 枚举3.10.1 将新的...
This .html file was generated by Chris Satterlee who has allowed us to make it available to you. This is the same BNF that was distributed with the first and second edition of the book (pre-IEEE-standardization). Try it out with your favorite net surfer. For more information, contact: ...
dup_expr.cc Provide data type for more NetExpr subclasses Jan 17, 2023 elab_expr.cc Reject invalid casts to real Jan 13, 2025 elab_lval.cc Guard against overflow / wrap around of internal part-select bit address Sep 17, 2024 elab_net.cc A repeat concatenation cannot be used as a net...
and variables. The LHS can be a bit-select of a net, part-select of a net, variable or a net but cannot be the reference to an array and bit/part select of a variable. Theforcestatment will override all other assignments made to the variable until it is released using therelease...