Testbench for the new clock manager.

1 files changed, 38 insertions, 0 deletions

diff --git a/rtl/bench/tb_clkmgr.v b/rtl/bench/tb_clkmgr.v
new file mode 100644
index 0000000..a987e1c
--- /dev/null
+++ b/rtl/bench/tb_clkmgr.v
@@ -0,0 +1,38 @@
+`timescale 1ns / 1ps
+
+module tb_clkmgr;
+
+    // Input
+	reg fmc_clk = 1'b0;
+
+    // Clock
+    always #11.111 fmc_clk = ~fmc_clk;
+
+    // Outputs
+    wire io_clk;
+	wire sys_clk;
+	wire sys_rst_n;
+    wire core_clk;
+
+    // Internals
+    reg fmc_clk_inhibit = 1'b0;
+
+	// UUT
+	alpha_clkmgr uut
+    (
+        .fmc_clk(fmc_clk & ~fmc_clk_inhibit),
+        .io_clk(io_clk),
+		.sys_clk(sys_clk), 
+		.sys_rst_n(sys_rst_n),
+        .core_clk(core_clk)
+	);
+    
+    // Script
+    initial begin
+        #399000;
+        fmc_clk_inhibit = 1'b1;
+        #1000;
+        fmc_clk_inhibit = 1'b0;
+    end
+      
+endmodule