led跑马灯/*-------------------------------------------------------- -- Engineer: zhrscut -- Create Date: -- Module Name: -- Tool Versions: Quartus_II 9.1 -- -EEPWFPGA°DIY --------------------------------------------------------*/ module ledr(clk,rst_n,led); input clk; input rst_n; output[7:0] led; reg[22:0] cnt; //÷ always @(posedge clk or negedge rst_n) if(!rst_n) cnt else cnt reg clk_r; always @(posedge clk or negedge rst_n) if(!rst_n) clk_r else if(cnt==23'h7fffff) clk_r reg[7:0] led_r=8'b1000_0001; always @(posedge clk_r or negedge rst_n) if(!rst_n) led_r else begin led_r[3:0] led_r[7:4] end assign……