Add Lab work No2

ld2/7segment_tb.v

@@ -0,0 +1,60 @@
+///////////////////////////// 
+// Author - Imants Pulkstenis
+// Date - 24.03.2020
+// Project name - Lab work No2 - Counter
+// Module name - Testbench for 7-segment module
+//
+// Detailed module description:
+//
+// This module inputs slowly incrementing 
+// numbers in 7-segment module
+//
+//
+// Revision:
+// A - initial design
+// B - 
+// 
+//
+/////////////////////////////
+`include "7segment.v"
+
+module bin_7segment_tb();
+
+reg           clk   = 1'b0;
+reg   [15:0]  in    = 'b0;
+wire  [6:0]   seg;
+wire  [3:0]   an;
+wire          dp;
+
+always #1 clk <= ~clk; 
+
+always #40 in <= in + 1;
+
+  initial
+  begin
+    #1000;
+    $finish();
+  end
+    
+  initial 
+  begin 
+    $display(" ");
+    $display("----------------------------------------------");
+    $display("          Starting Testbench...");
+    $dumpfile("wave.vcd");
+    $dumpvars(0);
+    $display("----------------------------------------------");
+    $display(" ");
+  end
+
+bin_7segment test_unit1(
+    .clk(clk),
+    .in(in),
+    .seg(seg),
+    .an(an),
+    .dp(dp)
+);
+
+
+
+endmodule