File size: 709 Bytes
0086871 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | module led
(
input wire CLK_IN,
input wire RST_N,
output wire [2:0]RGB_LED
);
parameter time1 = 25'd24_000_000;//¾§ÕñΪ24Mhz
reg [2:0]rledout;
reg [24:0] count;
reg [1:0]shift_cnt;
initial
begin
count=25'b0;
rledout=3'b1;
shift_cnt=2'b0;
end
always @(posedge CLK_IN)begin
if(RST_N==0)begin
count <= 25'b0;
rledout <= 3'b1;
shift_cnt <=2'b0;
end
if(count == time1)
begin
count<= 25'd0;
if(shift_cnt==2'b10)begin
rledout <= 3'b1;
shift_cnt <=2'b0;
end
else begin
rledout <= {rledout[1:0],1'b0};
shift_cnt <= shift_cnt + 1'b1;
end
end
else
count <= count + 1'b1;
end
assign RGB_LED = rledout;
endmodule
|