新手求救啊
module shumaguan(clk,rst_n,LED,LED_com);input clk;
input rst_n;
output LED;
output LED_com;
/*
0xc0,0xf9,0xa4,0xb0,
0x99,0x92,0x82,0xf8,
0x80,0x90,0x88,0x83,
0xc6,0xa1,0x86,0x8e
*/
//-------------------------------------
//延时
reg cnt;
always@(posedge clk or negedge rst_n)
if(!rst_n) cnt<=25'd0;
else cnt<=cnt+1'b1;
//-------------------------------------
//num++
reg num;
always@(posedge clk or negedge rst_n)
if(!rst_n) num<=4'd0;
else if(cnt==25'h1ffffff) num<=num+1'b1;
else if(num==4'd10) num<=4'd0;
//-------------------------------------
//数码管显示
parameter seg0 = 8'hc0,
seg1 = 8'hf9,
seg2 = 8'ha4,
seg3 = 8'hb0,
seg4 = 8'h99,
seg5 = 8'h92,
seg6 = 8'h82,
seg7 = 8'hf8,
seg8 = 8'h80,
seg9 = 8'h90;
reg xianshi;
always@(num) //num变化时执行以下语句
case(num)
4'h0: xianshi<=seg0;
4'h1: xianshi<=seg1;
4'h2: xianshi<=seg2;
4'h3: xianshi<=seg3;
4'h4: xianshi<=seg4;
4'h5: xianshi<=seg5;
4'h6: xianshi<=seg6;
4'h7: xianshi<=seg7;
4'h8: xianshi<=seg8;
4'h9: xianshi<=seg9;
default:xianshi<=8'hff ;
endcase
//-------------------------------------
assign LED=xianshi;
assign LED_com=1'b1;
endmodule
http://cache.amobbs.com/bbs_upload782111/files_46/ourdev_683177PLMNQU.jpg
(原文件名:未命名.jpg)
为什么会出现6哥警告？这些警告都是什么原因所致啊？谢了啊 assign LED_com=1'b1;
位宽不对，没有初始值。你的编程规范太差了
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