1 files changed, 23 insertions, 0 deletions
diff --git a/blink.v b/blink.v
new file mode 100644
index 0000000..d11cd1c
--- /dev/null
+++ b/blink.v
@@ -0,0 +1,23 @@
+module blink(
+	input rst_i,
+	input clk_i,
+	output reg led_o
+);
+
+parameter COUNTER_WIDTH = 32;
+parameter OVERFLOW = 25_000_000;
+
+reg[COUNTER_WIDTH-1:0] counter;
+
+always @(posedge clk_i) begin
+	if (rst_i) begin
+		counter <= 0;
+		led <= 1;
+	end else if (counter == OVERFLOW-1) begin
+		led_o <= ~led_o;
+		counter <= 0;
+	end else
+		counter <= counter + 1;
+end
+
+endmodule