题解 | #输入序列连续的序列检测#
输入序列连续的序列检测
https://www.nowcoder.com/practice/d65c2204fae944d2a6d9a3b32aa37b39
`timescale 1ns/1ns
module sequence_detect(
input clk,
input rst_n,
input a,
output reg match
);
reg [6:0] lfsr;
always @(posedge clk or negedge rst_n)begin
if(!rst_n)begin
lfsr <= 'b0;
end
else begin
lfsr <= {lfsr[5:0],a};
end
end
always @(posedge clk or negedge rst_n)begin
if(!rst_n)begin
match <= 'b0;
end
else begin
if(lfsr == 8'b01110001) match <= 1'b1;
else match <= 1'b0;
end
end
endmodule
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