See Lfsr5 for explanations.

Build a 32-bit Galois LFSR with taps at bit positions 32, 22, 2, and 1.

Module Declaration
module top_module(input clk,input reset,    // Active-high synchronous reset to 32'h1output [31:0] q
); 

代码如下：

module top_module(input clk,input reset,    // Active-high synchronous reset to 32'h1output [31:0] q
); always @(posedge clk) beginif(reset)begin q <= 32'h1;endelse begin q <= {q[0]^1'b0,q[31:23],q[22]^q[0],q[21:3],q[2]^q[0],q[1]^q[0]};endend
endmodule

关键是对应好相应位置即可