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encoder.v
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encoder.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 2021/12/04 15:34:09
// Design Name:
// Module Name: encoder
// Project Name:
// Target Devices:
// Tool Versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
module encoder(enable, backspace, send, clk, rst, row,press, seg_o, col, store, message);//约束文件记得改名
input enable; ///////编码模式使能信号
input backspace; //////退格键
input send; //////发送键 & 蜂鸣器播放键
input clk; ///// 时钟信号
input rst; ////// 重置键
//////矩阵键盘
input [3:0] row;
input press;
input [7:0] seg_o;
output [3:0] col;
output reg [63:0] store = 64'b1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111; ///////七段数码管显示内容
output reg [135:0] message = 0; ////////蜂鸣器播放内容
reg [3:0] counter; //计算按了几次按键
reg [24:0] cnt; // 计数子
wire k_clk;
/////////// 分频
always @ (posedge clk or posedge rst)
if (rst)
cnt <= 0;
else
cnt <= cnt + 1'b1;
assign k_clk = cnt[24];
always @ (posedge k_clk or posedge rst)
if(rst)
begin
///////重置键按下时，清空 七段数码管显示内容 和 蜂鸣器播放内容
if(enable)
begin
counter <= 0;
store <= 64'b1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111_1111;
message <= 0;
end
end
else
begin
if(enable)
begin
if(press) begin
//////////根据矩阵键盘的输入改变七段数码管显示内容
if(counter<=4'b1000)begin
counter = counter + 1;
store[8*counter-8] <= seg_o[0];
store[8*counter-7] <= seg_o[1];
store[8*counter-6] <= seg_o[2];
store[8*counter-5] <= seg_o[3];
store[8*counter-4] <= seg_o[4];
store[8*counter-3] <= seg_o[5];
store[8*counter-2] <= seg_o[6];
store[8*counter-1] <= seg_o[7];
//////////根据矩阵键盘的输入改变蜂鸣器播放内容
case(seg_o)
8'b11000000:
begin //0
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <= 1'b1;
message[17*counter -10] <= 1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b1;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b1;
message[17*counter -4] <= 1'b1;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b11111001:
begin //1
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b1;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b1;
message[17*counter -5] <= 1'b1;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10100100:
begin //2
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b1;
message[17*counter -6] <= 1'b1;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10110000:
begin //3
message[17*counter -17] <=1'b1;
message[17*counter -16] <=1'b0;
message[17*counter -15] <=1'b1;
message[17*counter -14] <=1'b0;
message[17*counter -13] <=1'b1;
message[17*counter -12] <=1'b0;
message[17*counter -11] <= 1'b1;
message[17*counter -10] <= 1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b1;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10011001:
begin //4
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <= 1'b1;
message[17*counter -10] <= 1'b0;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10010010:
begin //5
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b1;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10000010:
begin //6
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b11111000:
begin //7
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <= 1'b1;
message[17*counter -10] <= 1'b0;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b1;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10000000:
begin //8
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b1;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b1;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10010000:
begin //9
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b1;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b1;
message[17*counter -7] <= 1'b1;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b1;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10001000:
begin //A
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10000011:
begin //b
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b11000110:
begin //c
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b1;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b1;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10100001:
begin //d
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b1;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b1;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10000110:
begin //e
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
8'b10001110:
begin //f
message[17*counter -17] <= 1'b1;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b1;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b1;
message[17*counter -12] <= 1'b1;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b1;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
end
endcase
end
end
else begin
///////////////根据退格键的使用，同时改变 七段数码管显示内容 和 蜂鸣器播放内容
if (backspace) begin
if(counter>0)begin
store[8*counter-8] <= 1'b1;
store[8*counter-7] <= 1'b1;
store[8*counter-6] <= 1'b1;
store[8*counter-5] <= 1'b1;
store[8*counter-4] <= 1'b1;
store[8*counter-3] <= 1'b1;
store[8*counter-2] <= 1'b1;
store[8*counter-1] <= 1'b1;
message[17*counter -17] <= 1'b0;
message[17*counter -16] <= 1'b0;
message[17*counter -15] <= 1'b0;
message[17*counter -14] <= 1'b0;
message[17*counter -13] <= 1'b0;
message[17*counter -12] <= 1'b0;
message[17*counter -11] <=1'b0;
message[17*counter -10] <=1'b0;
message[17*counter -9] <= 1'b0;
message[17*counter -8] <= 1'b0;
message[17*counter -7] <= 1'b0;
message[17*counter -6] <= 1'b0;
message[17*counter -5] <= 1'b0;
message[17*counter -4] <= 1'b0;
message[17*counter -3] <= 1'b0;
message[17*counter -2] <= 1'b0;
message[17*counter -1] <= 1'b0;
counter = counter - 1'b1;
end
end
end
end
end
endmodule