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LED左移流水灯代码

module led_run(sys_clk,
               sys_rstn,
               led
                  );
input            sys_clk;
input            sys_rstn;
output  [7:0]    led     ;
reg     [7:0]    led     ;
reg     [24:0]   delay_cnt;
always@(posedge sys_clk or negedge sys_rstn)
    begin
       if(!sys_rstn)
       delay_cnt<=25'd0;
   else
                   begin
           if(delay_cnt==25'd24999999)
           delay_cnt<=25'd0;
       else
           delay_cnt<=delay_cnt+1'b1;
     end
  end 
always@(posedge sys_clk or negedge sys_rstn)
    begin
       if(!sys_rstn)
       led<=8'b11111110;
   else
           begin
           if(delay_cnt==25'd24999999)
      led<={led[0],led[7:1]};
    else
                                     led<=led;
     end
  end 
endmodule  

过奖了我也不刚做完LED

给我吧，学习学习

给我吧，学习学习

LED作业
从内向两边流水
module led_run(sys_clk,
               sys_rstn,
               led1,led2
                  );
input            sys_clk;
input            sys_rstn;
output  [3:0]    led1    ;
output  [3:0]    led2    ;
reg     [3:0]    led1    ;

reg     [3:0]    led2    ;
reg     [24:0]   delay_cnt;
always@(posedge sys_clk or negedge sys_rstn)
    begin
       if(!sys_rstn)
       delay_cnt<=25'd0;
   else
                   begin
           if(delay_cnt==25'd24999999)
           delay_cnt<=25'd0;
       else
           delay_cnt<=delay_cnt+1'b1;
     end
  end 
always@(posedge sys_clk or negedge sys_rstn)
    begin
       if(!sys_rstn)
       led1<=8'b0111;
   else
           begin
           if(delay_cnt==25'd24999999)
      led1<={led1[3:0],led1[3]};
    else
                                     led1<=led1;
     end
  end 
always@(posedge sys_clk or negedge sys_rstn)
    begin
       if(!sys_rstn)
       led2<=4'b1110;
   else
           begin
           if(delay_cnt==25'd24999999)
      led2<={led2[0],led2[3:1]};
    else
                                     led2<=led2;
     end
  end 

endmodule