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top.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 03:59:50 03/15/2017
// Design Name:
// Module Name: top
// Project Name:
// Target Devices:
// Tool versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
// manual comments:
// 关于闹钟与时钟使用顺序:设置闹钟前 1.打开setAL 2.打开Adj_Min,Adj_Hour 设置完毕后: 1.关闭Adj_Min,Adj_Hour 2.关闭setAL
// 设置时钟时 1.setAL关闭状态 2.2.打开Adj_Min,Adj_Hour
// 约束时: 所有按键都需要用拨码开关 数码管约束:gfedcba = Hex[6:0] Led高低位对应顺序不变
//
//////////////////////////////////////////////////////////////////////////////////
module top(clk_50,ncr,en,setAL,SwitchAL,Switch12,Adj_Min,Adj_Hour,Show,AN0,AN1,AN2,AN3,Led,Alarm,Clock_Led); //秒信号通过LED显示出来，二进制
input clk_50,ncr,en; //ncr==0时有效，en == 1时有效
input Adj_Min,Adj_Hour; //=1时有效
input setAL,SwitchAL; //闹钟的设置与开关 setAL == 1时设置闹钟,SwitchAL == 1时，闹钟正常，==0时关闭蜂鸣
input Switch12;
output AN0,AN1,AN2,AN3; //数码管的片选信号
output wire[6:0] Show; //数码管的输出信号
output wire[7:0] Led; //LED的输出信号
output Alarm; //闹钟的输出信号
output Clock_Led; //整点报时信号
supply1 Vdd; //电源
supply0 Gnd; //地
wire[6:0] Hex0,Hex1,Hex2,Hex3;
wire[7:0] Hour,Minute,Second; //时钟信号
wire[7:0] AHour,AMinute; //闹钟信号
wire[7:0] Show_Minute,Show_Hour; //数码管信号
wire[7:0] Show_Hour12,Show_Hour24; //12与24进制的小时信号
wire MinL_En,MinH_En,Hour_En; //时钟使能信号
wire AL_Adj_Min,AL_Adj_Hour; //闹钟使能信号
wire clk_1;
reg Clock_Led_En; //整点报时使能信号
reg Clock_Led_Temp1;
reg[5:0]Clock_Led_Cnt; //整点报时计次信号
wire Clock_Led_Temp; //整点报时 时信号
//----------------------------------------------分频--------------------------------------------------
Divider50MHz U0(.clk_50M(clk_50),
.ncr(ncr),
.clk_1(clk_1));
//----------------------------------------------计数-------------------------------------------------
//*************************秒*******************************
counter6 S1(clk_1,ncr,en,Second[7:4]);
counter10 S2(clk_1,ncr,en,Second[3:0]);
//*************************分*******************************
counter6 M1(clk_1,ncr,MinH_En,Minute[7:4]);
counter10 M2(clk_1,ncr,MinL_En,Minute[3:0]);
//*************************时*******************************
counter24 H(clk_1,ncr,Hour_En,Hour[7:4],Hour[3:0]);
assign MinL_En = ((!setAL)&&Adj_Min)?Vdd:(Second==8'b0101_1001);
assign MinH_En = ((!setAL)&&Adj_Min)?(Minute[3:0]==4'd9):((Minute[3:0]==4'd9)&&(Second==8'b0101_1001));
assign Hour_En = ((!setAL)&&Adj_Hour)?Vdd:((Minute==8'b0101_1001)&&(Second==8'b0101_1001));
//----------------------------------------------整点报时-------------------------------------------------
//利用Hour_En信号来判断是否是整点,Show_Hour用来判断与Clock_Led_Cnt是否相同来表示闪的次数
always@(Show_Hour[5:4])
begin
case(Show_Hour[5:4])
2'b00:Clock_Led_Temp1 = 5'd0;
2'b01:Clock_Led_Temp1 = 5'd10;
2'b10:Clock_Led_Temp1 = 5'd20;
default:Clock_Led_Temp1 = 5'd0;
endcase
end
assign Clock_Led_Temp = Clock_Led_Temp1 + Show_Hour[3:0] + Clock_Led_Temp1 + Show_Hour[3:0];
always@(posedge clk_1)
begin
if((!Adj_Min)&&(!Adj_Hour)&&(Hour_En))
begin Clock_Led_En <= 1;Clock_Led_Cnt <= 6'd0;end
else if(Clock_Led_Temp == Clock_Led_Cnt)
begin Clock_Led_En <= 0;Clock_Led_Cnt <= 6'd0;end
else
begin Clock_Led_En <= Clock_Led_En;Clock_Led_Cnt <= Clock_Led_Cnt + 1'b1;end
end
assign Clock_Led = Clock_Led_En?Second[0]:Gnd;
//----------------------------------------------闹钟-----------------------------------------------------
//--------------判断闹钟setAL---------------
assign AL_Adj_Min = setAL && Adj_Min;
assign AL_Adj_Hour = setAL && Adj_Hour;
AlarmClock AL1(clk_1,ncr,AL_Adj_Min,AL_Adj_Hour,AHour,AMinute);
assign Alarm = SwitchAL?((AHour == Hour)&&(AMinute == Minute)):Gnd;
//*****************数码管显示**************
assign Show_Minute = setAL?AMinute:Minute;
assign Show_Hour24 = setAL?AHour:Hour;
//*****************分钟译码****************
Seg7_Lut MinL(Show_Minute[3:0],Hex0);
Seg7_Lut MinH(Show_Minute[7:4],Hex1);
//----------------12与24之间转换-------------
Trans24To12 T12(Show_Hour24,ncr,Show_Hour12);
assign Show_Hour= Switch12?Show_Hour12:Show_Hour24;
//*****************时的译码******************
Seg7_Lut HouL(Show_Hour[3:0],Hex2);
Seg7_Lut HouH(Show_Hour[7:4],Hex3);
Show_Seg7 S3(Hex0,Hex1,Hex2,Hex3,clk_50,ncr,Show,AN0,AN1,AN2,AN3);
assign Led = Second;
endmodule