能用verilog写一段crc32的代码吗
时间: 2024-06-01 22:14:13 浏览: 12
当然可以,以下是一段 Verilog CRC32 的代码:
module crc32 (
input wire clk,
input wire rst,
input wire [31:0] data,
output wire [31:0] crc
);
reg [31:0] crc_reg;
reg [31:0] poly = 32'h04C11DB7;
always @ (posedge clk or posedge rst) begin
if (rst) begin
crc_reg <= 32'hFFFFFFFF;
end else begin
for (int i = 31; i >= 0; i = i - 1) begin
if ((crc_reg[31] == 1) ^ (data[i] == 1)) begin
crc_reg <= {crc_reg[30:0], 1'b0} ^ poly;
end else begin
crc_reg <= {crc_reg[30:0], 1'b0};
end
end
end
end
assign crc = ~crc_reg;
endmodule
希望这能帮到你!