题解 | #占空比50%的奇数分频#
占空比50%的奇数分频
https://www.nowcoder.com/practice/ccfba5e5785f4b3f9d7ac19ab13d6b31
`timescale 1ns/1ns module odo_div_or ( input wire rst , input wire clk_in, output wire clk_out7 ); //*************code***********// reg [2:0] cnt; reg clk_out7_r1,clk_out7_r2; always @(posedge clk_in or negedge rst) begin if(rst == 1'b0) cnt <= 3'd0; else if(cnt == 3'd6) cnt <= 3'd0; else cnt <= cnt + 1'b1; end always @(posedge clk_in or negedge rst) begin if(rst == 1'b0) clk_out7_r1 <= 1'b0; else if(cnt == 3'd3) clk_out7_r1 <= 1'b1; else if(cnt == 3'd6) clk_out7_r1 <= 1'b0; else clk_out7_r1 <= clk_out7_r1; end always @(negedge clk_in or negedge rst)begin if(rst == 1'b0) clk_out7_r2 <= 1'b0; else if(cnt == 3'd3) clk_out7_r2 <= 1'b1; else if(cnt == 3'd6) clk_out7_r2 <= 1'b0; else clk_out7_r2 <= clk_out7_r2; end assign clk_out7 = clk_out7_r1 || clk_out7_r2; //*************code***********// endmodule