这是代码：问题是：//data是要在数码管上显示的数，但他只能显示十六进制下的数，因为1995的十六进制是07cb，因此在四位一体共阴数码管上就只显示07CB，我怎么让他在十进制下显示，比如十进制下的1995，就让他显示1995而不是07CB。
module smg(clk,rst,duan,wei);
input clk,rst;
reg [15:0] data=16'd1995; //待显示的数据
output reg[7:0] duan;
output reg[3:0] wei;
reg[25:0] cnt;
reg clk_1K;
reg[3:0] buff;
reg[1:0] index;
always @(posedge clk or negedge rst)
if(!rst) cnt<=26'd0;
else if(cnt==26'd25000) cnt<=26'd0;
else cnt<=cnt+1'b1;
always @(posedge clk or negedge rst) //产生1KHz时钟
if(!rst) clk_1K<=1'b0;
else if(cnt==26'd25000) clk_1K<=~clk_1K;
always @(posedge clk_1K or negedge rst)
if(!rst) index<=2'd0;
else index<=index+1'b1;
always @(posedge clk or negedge rst) begin
case(index)
3:wei<=4'b0111;
2:wei<=4'b1011;
1:wei<=4'b1101;
0:wei<=4'b1110;
endcase
end
always @(posedge clk or negedge rst)
if(!rst) buff<=4'd0;
else begin
case(wei)
4'd7:buff<=data[3:0];
4'd11:buff<=data[7:4];
4'd13:buff<=data[11:8];
4'd14:buff<=data[15:12];
endcase
end
always @(posedge clk or negedge rst)
if(!rst) duan<=8'b0000_0000;
else begin
case(buff)
4'h0: duan <= 8'h3f; //0
4'h1: duan <= 8'h06; //1
4'h2: duan <= 8'h5b; //2
4'h3: duan <= 8'h4f; //3
4'h4: duan <= 8'h66; //4
4'h5: duan <= 8'h6d; //5
4'h6: duan <= 8'h7d; //6
4'h7: duan <= 8'h07; //7
4'h8: duan <= 8'h7f; //8
4'h9: duan <= 8'h6f; //9
4'ha: duan <= 8'h77; //a
4'hb: duan <= 8'h7c; //b
4'hc: duan <= 8'h39; //c
4'hd: duan <= 8'h5e; //d
4'he: duan <= 8'h79; //e
4'hf: duan <= 8'h71; //f
endcase
end
endmodule
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