FPGA軌道交通自動售票電路

1、設(shè)計一個軌道交通自動售票電路，只接受1，2，5元人民幣，每張票價定額 5 元，并支持找零。要求： (1)用狀態(tài)機方法設(shè)計；綜合。( 2)用 Verilog HDL 語言設(shè)計，用 Modelsim 軟件做功能仿真，用 Quartus II (3)將設(shè)計代碼和仿真代碼寫在作業(yè)本上。module zhaoling(clock,reset,A,ticket,change);input clock,reset;input 2:0 A;output ticket;output 2:0 change;reg 2:0 state;reg ticket;reg 2:0 change;parametersta_0

2、=3d0,sta_1=3d1,sta_2=3d2,sta_3=3d3,sta_4=3d4, sta_5=3d5;always (posedge clock or negedge reset) if(!reset)begin state=sta_0; ticket=0; change=0; end elsecase(state)sta_0:if(A = 1)begin state = sta_1; ticket=0; change=0; end else if(A = 2)begin state = sta_2; ticket=0; change=0; end else if(A = 5)beg

3、in state = sta_5; ticket=1; change=0; end elsebegin state = sta_0; ticket=0; change=0; end sta_1:if(A = 1)begin state = sta_2; ticket=0; change=0; endelse if(A = 2)begin state = sta_3; ticket=0; change=0; endelse if(A = 5)begin stateelse=sta_0; ticket=1;change=1; endbegin state sta_2:if(A = 1)begin

4、stateelse if(A = 2)begin state = sta_4; ticket=0;else if(A = 5)begin stateelse=sta_1; ticket=0;sta_3; ticket=0;sta_0; ticket=1;begin state sta_3:if(A = 1)begin stateelse if(A = 2)begin state = sta_5; ticket=1;else if(A = 5)begin stateelse=sta_2; ticket=0;sta_4; ticket=0;sta_5; ticket=1;begin state s

5、ta_4:if(A = 1)begin stateelse if(A = 2)=sta_3; ticket=0;sta_5; ticket=1;begin state = sta_5; ticket=1;else if(A = 5)begin stateelse=sta_5; ticket=1;begin state sta_5:if(A = 1)begin stateelse if(A = 2)begin state = sta_2; ticket=0;else if(A = 5)begin state = sta_5; ticket=1; else=sta_4; ticket=0;sta_

6、1; ticket=0;begin state = sta_5; ticket=0; default: state = sta_0;endcaseendmoduletimescale 1ns/1ns module test;change=0; endchange=0; endchange=0; endchange=2; endchange=0; endchange=0; endchange=0; endchange=3; endchange=0; endchange=0; endchange=1; endchange=4; endchange=0; endchange=0; endchange

7、=0; endchange=0; endchange=0; endreg Clock,Reset; reg 2:0 A; wire Ticket;wire 2:0 Change;initialbeginA=0;Reset = 1;Clock = 0;Reset = 0; #10 Reset = 1; endalways #10 Clock=Clock;initialbegin#20 A = 1;#20 A = 1;#20 A = 1;#20 A = 1;#20 A = 1;#20 A = 1;#20 A = 2;#20 A = 2;#20 A = 2;#20 A = 2;#20 A = 1;#20 A = 2;#20 A = 1;#20 A = 2;#20 A = 2;#20 A = 2;#20 A = 2;#20 A = 5;endzhaolingm