题解 | #不重叠序列检测#

`timescale 1ns/1ns
module sequence_detect(
	input clk,
	input rst_n,
	input data,

	output reg match,
	output reg not_match
);

reg [2:0]cnt;
always@(posedge clk or negedge rst_n)
	if (rst_n == 1'b0)
		cnt <= 3'b0;
	else if (cnt == 3'd5)
		cnt <= 3'b0;
	else
		cnt <= cnt + 1'b1;

reg [5:0]data_reg;
always@(posedge clk or negedge rst_n)
	case(cnt)
		3'd0 : data_reg[0] <= data;
		3'd1 : data_reg[1] <= data;
		3'd2 : data_reg[2] <= data;
		3'd3 : data_reg[3] <= data;
		3'd4 : data_reg[4] <= data;
		3'd5 : data_reg[5] <= data;
		default : data_reg <= 6'b0;
	endcase

always@(posedge clk or negedge rst_n)
	if (rst_n == 1'b0)
		begin
			match <= 1'b0;
			not_match <= 1'b0;
		end
	else if (cnt == 3'd5)
		begin
			if (data_reg == 6'b00_1110)
				begin
					match <= 1'b1;
					not_match <= 1'b0;
				end
			else
				begin
					match <= 1'b0;
					not_match <= 1'b1;
				end
		end
	else
		begin
			match <= 1'b0;
			not_match <= 1'b0;
		end
			
endmodule

为什么我自测运行显示“您的程序未能在规定时间内运行结束，请检查是否循环有错或算法复杂度过大。”，但是提交后可以通过？？？