?? delay.v
字號:
/* -------------------------------------------------------------
Synthesis & Fitter tool = "QuartusII5.0WE"
FileName = Delay.v
M.YOSHIDA 15.MAY.2005 REV 1.0
------------------------------------------------------------- */
// Module Declaration
module Delay ( clk,
rstn,
start
);
// port declaration
input clk, rstn;
output start;
// reg & wire declaration
reg [15:0] cnt;
always @( posedge clk or negedge rstn ) begin
if( !rstn ) begin
cnt <= 16'h0;
end
else begin
if( cnt == 16'hffff ) begin
cnt <= cnt;
end
else begin
cnt <= cnt + 1'b1;
end
end
end
assign start = ( cnt == 16'hffff );
endmodule
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