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859天前//****************************************// |
// 作 者:绯红姜梦 |
// 日 期:2022、6、1 |
// QQ :2943115420 |
// QQ交流群:689408654 |
// 功 能:数码管动态扫描 |
// author :crimson ginger dream |
// date :2022/6/1 |
// QQ :2943115420 |
// QQ group:689408654 |
// function:Digital tube dynamic scanning |
//****************************************// |
`timescale 1ns / 1ps |
module digital( |
input clk , |
input rstn , |
input [3:0] data1, |
input [3:0] data2, |
input [3:0] data3, |
input [3:0] data4, |
input [3:0] data5, |
input [3:0] data6, |
output reg [7:0] seg , |
output reg [5:0] sel |
); |
reg [15:0]cn1; |
reg clk1k; |
always@(posedge clk or negedge rstn) |
begin |
if(!rstn)begin |
cn1<=0; |
clk1k<=0; |
end else if(cn1>=24999)begin |
clk1k<=!clk1k; |
cn1<=0; |
end else begin |
cn1<=cn1+1; |
end |
end |
reg [3:0] tub; |
reg [2:0] state; |
always@(posedge clk1k or negedge rstn) |
begin |
if(!rstn)begin |
tub <= 0; |
state <= 0; |
sel <= 0; |
end else begin |
case(state) |
0:begin tub<=data1;sel<=6'b011111;state<=1;end |
1:begin tub<=data2;sel<=6'b101111;state<=2;end |
2:begin tub<=data3;sel<=6'b110111;state<=3;end |
3:begin tub<=data4;sel<=6'b111011;state<=4;end |
4:begin tub<=data5;sel<=6'b111101;state<=5;end |
5:begin tub<=data6;sel<=6'b111110;state<=0;end |
default:state<=0; |
endcase |
end |
end |
always@(*) |
if(!rstn) |
seg<=8'b1100_0000; |
else |
case(tub) |
0:seg<=8'b1100_0000; |
1:seg<=8'b1111_1001; |
2:seg<=8'b1010_0100; |
3:seg<=8'b1011_0000; |
4:seg<=8'b1001_1001; |
5:seg<=8'b1001_0010; |
6:seg<=8'b1000_0010; |
7:seg<=8'b1111_1000; |
8:seg<=8'b1000_0000; |
9:seg<=8'b1001_0000; |
// 10:seg<=8'b1000_1000; |
// 11:seg<=8'b1000_0011; |
// 12:seg<=8'b1100_0110; |
// 13:seg<=8'b1010_0001; |
// 14:seg<=8'b1000_0110; |
15:seg<=8'b1111_1111; |
default:seg<=8'b1100_0000; |
endcase |
endmodule |
