Module: blink

Ports:

Direction	Size	Name
input		clk
output		led

Parameter:

Parameter	Default
SPEED	0x16E3600	24000000

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Child-Modules

Source

Filename: blink.v

1 module blink
2     #(parameter SPEED = 100000)
3     (
4         input clk,
5         output led
6     );
7     reg rled;
8     reg [31:0] counter;
9     assign led = rled;
10     always @(posedge clk) begin
11         if (counter == 0) begin
12             counter <= SPEED;
13             rled <= ~rled;
14         end else begin
15             counter <= counter - 1;
16         end
17     end
18 endmodule