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vistaでquartus その23

Last updated at Posted at 2020-08-07

概要

vistaでquartusやってみた。
modelsimとiverilogで動くtestbench書いてみた。

写真

modelsim
image

iverilog
image

サンプルコード

lチカ
CIMG2956.JPG

module test2(input clk, input rst, output led5, led4, led2);
	reg [26:0] cnt;
	assign led5 = ~cnt[24];
	assign led4 = ~cnt[25];
	assign led2 = ~cnt[26];
	always @(posedge clk, negedge rst)
	begin
		if (~rst)
			cnt <= 'b0;
		else
			cnt <= cnt + 1;
	end
endmodule

testbench

module test;
	reg clk,
		rst;
	test2 t(.clk(clk), .rst(rst), .led5(led5), .led4(led4), .led2(led2));
	initial
	begin
		clk = 0;
		rst = 1;
		#2
			rst = 0;
		#2
			rst = 1;
		#20000
			$finish;
	end
	always
		#1
			clk = ~clk;
	initial
	begin
		$dumpfile("test.vcd");
		$dumpvars(0, test);
	end
endmodule

以上。

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