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 clk_out2_reg, clk_out4_reg, clk_out8_reg; assign clk_out2 = clk_out2_reg; assign clk_out4 = clk_out4_reg; assign clk_out8 = clk_out8_reg; always@(posedge clk_in or negedge rst) begin if(!rst) begin clk_out2_reg <= 1'b0; end else begin clk_out2_reg <= ~clk_out2_reg; end end always@(posedge clk_out2_reg or negedge rst) begin if(!rst) begin clk_out4_reg <= 1'b0; end else begin clk_out4_reg <= ~clk_out4_reg; end end always@(posedge clk_out4_reg or negedge rst) begin if(!rst) begin clk_out8_reg <= 1'b0; end else begin clk_out8_reg <= ~clk_out8_reg; end end //*************code***********// endmodule