diff --git a/hw_pwm_controller/src/top.v b/hw_pwm_controller/src/top.v
new file mode 100644
index 0000000..32e09a2
--- /dev/null
+++ b/hw_pwm_controller/src/top.v
@@ -0,0 +1,37 @@
+`timescale 1ns/1ps
+
+module top (
+	input clk,
+	input [0:0] btn,
+	input [7:0] sw,
+	output [2:0] RGB_led_A,
+	output [7:0] led
+);
+
+wire clk2;
+
+conf_div clock_div (
+	.clk_in(clk),
+	.rst(0),
+	.sel(6),
+	.clk_out(clk2)
+);
+
+wire clk_cur = btn[0] ? clk2 : clk;
+
+pwm_core #(
+	.WINDOW_REG_SIZE(8)
+) pwm_core_r (
+	.clk(clk_cur),
+	.rst(0),
+	.duty(sw[7:0]),
+	.window_width(255),
+	.oen(sw[11]),
+	.pulse(RGB_led_A[0])
+);
+
+assign RGB_led_A[1] = 0;
+assign RGB_led_A[2] = 0;
+
+endmodule
+