图片中是仿真时提示的错误,但不知道怎么解决的,改怎么解决
下面是源代码
// Copyright (C) 1991-2013 Altera Corporation
// Your use of Altera Corporation's design tools, logic functions
// and other software and tools, and its AMPP partner logic
// functions, and any output files from any of the foregoing
// (including device programming or simulation files), and any
// associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License
// Subscription Agreement, Altera MegaCore Function License
// Agreement, or other applicable license agreement, including,
// without limitation, that your use is for the sole purpose of
// programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the
// applicable agreement for further details.
// *****************************************************************************
// This file contains a Verilog test bench template that is freely editable to
// suit user's needs .Comments are provided in each section to help the user
// fill out necessary details.
// *****************************************************************************
// Generated on "11/20/2018 13:46:00"
// Verilog Test Bench template for design : led
//
// Simulation tool : ModelSim (Verilog)
//
// assign statements (if any)
led i1 (
// port map - connection between master ports and signals/registers
.CLK(CLK),
.LED0(LED0),
.RST_n(RST_n)
);
initial
begin
// code that executes only once
// insert code here --> begin
// --> end
$display("Running testbench");
end
begin
CLK=1'b0;
RST_n=1'b1;
#100
RST_n=1'b0;
#100
RST_n=1'b1;
end
always
// optional sensitivity list
// @(event1 or event2 or .... eventn)
begin
// code executes for every event on sensitivity list
// insert code here --> begin
initial
begin
// code that executes only once
// insert code here --> begin
// --> end
$display("Running testbench");
end
begin
CLK=1'b0;
RST_n=1'b1;
#100
RST_n=1'b0;
#100
RST_n=1'b1;
end
这一段代码有问题,后面一个begin/end之间的语句应该放在initial后面那个begin/end之间,也就是说你多写了一个begin/end;