题解 | #异步复位同步释放#
异步复位同步释放
https://www.nowcoder.com/practice/9b892b6f75954267b4574b042f8a8d6a
`timescale 1ns/1ns
module ali16(
input clk,
input rst_n,
input d,
output reg dout
);
//*************code***********//
reg rst_n_sync_r1,rst_n_sync_r2;
always@(posedge clk or negedge rst_n) begin
if(!rst_n) begin
{rst_n_sync_r1,rst_n_sync_r2} <= 'd0;
end
else begin
{rst_n_sync_r1,rst_n_sync_r2} <= {1'b1,rst_n_sync_r1};
end
end
always@(posedge clk or negedge rst_n_sync_r2) begin
if(!rst_n_sync_r2) begin
dout <= 1'b0;
end
else begin
dout <= d;
end
end
//*************code***********//
endmodule
美团稳定性 158人发布
投递美团等公司8个岗位 >
