但是这种代码是错误的,编译不能通过,正确的做法应该是这样的 moduletop_module(input [1023:0]in,input[7:0]sel,output[3:0]out);assignout= {in[sel*4+3],in[sel*4+2],in[sel*4+1],in[sel*4+0]};endmodule 这里科普其他两种做法(但是这两种做法我很
Mux verilog code below. They do the same, but option 2 got huge delays and cannot meet timing. Conclusion: they have different fitter results but I thought they are the same?? or am I wrong?? I'm using quartus II 7.2, device cyclone II. 1.) always @(*) begin case (TxWr...
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It's great for learning HDLs, it's great for testing out unfamiliar things and it's great for sharing code. Let's get started You can start typing straight away. But to run your code, you'll need to sign or log in. Logging in with a Google account gives you access to all non-co...
verilog mux在时钟边缘 如何使用时钟边沿作为多路复用器的选择器,我想做什么: input clk, in1, in2; output out; always@ (posedge clk) begin out<=in1; end always@(negedge clk) begin out<=in2; end Run Code Online (Sandbox Code Playgroud) 但是,这是不可合成的,因为在单独的always块中有多...
2'b10 : q_o = c_i; default: q_o=d_i; endcase 既然心理想的是mux,用case來窮舉自然最一目暸然, 根據[3]Altera所推薦coding style,當使用case時,Quartus II會使用parallel mux來實現。 Testbench mux_case_tb.v / Verilog 1/* 2(C) OOMusou 2010http://oomusou.cnblogs.com ...
To concatenate input signals, use aVector Concatenateblock instead of aMuxblock. TheVector Concatenateblock creates a nonvirtual vector, which improves the efficiency of generated code. For a comparison of mux signals, virtual buses, and concatenated signals, seeExplore Composite Interfaces. ...
1. endcase 1. 既然心理想的是mux,用case來窮舉自然最一目暸然, 根據[3]Altera所推薦coding style,當使用case時,Quartus II會使用parallel mux來實現。 Testbench mux_case_tb.v / Verilog 1 /* 1. 2 (C) OOMusou 2010 1. 3 1. 4 Filename : mux_case_tb.v ...
// BUFGMUX : In order to incorporate this function into the design,// Verilog : the following instance declaration needs to be placed// instance : in the body of the design code. The instance name// declaration : (BUFGMUX_inst) and/or the port declarations within the// code : parenthes...
HDL Code Generation Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™. PLC Code Generation Generate Structured Text code using Simulink® PLC Coder™. Fixed-Point Conversion Design and simulate fixed-point systems using Fixed-Point Designer™. ...