题解 | #时钟分频（偶数）#
时钟分频（偶数）
https://www.nowcoder.com/practice/49a7277c203a4ddd956fa385e687a72e
`timescale 1ns/1ns
module even_div
(
input wire rst ,
input wire clk_in,
output wire clk_out2,
output wire clk_out4,
output wire clk_out8
);
//*************code***********//
reg dff0,dff1,dff2;
always@(posedge clk_in or negedge rst) begin
if(!rst) begin
dff0 <= 0;
end
else begin
dff0 <= ~dff0;
end
end
always@(posedge dff0 or negedge rst) begin
if(!rst) begin
dff1 <= 0;
end
else begin
dff1 <= ~dff1;
end
end
always@(posedge dff1 or negedge rst) begin
if(!rst) begin
dff2 <= 0;
end
else begin
dff2 <= ~dff2;
end
end
assign clk_out2 = dff0,
clk_out4 = dff1,
clk_out8 = dff2;
//*************code***********//
endmodule
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