地铁自动售票系统VHDL(11)

account_temp:='1';

--选择1张票

when "01"=>

temp_account:="00001"; number:="01"; total_price:=price; account_temp:='1'; null;

when others=>

end case;

then

end if;

if((type_temp='1')and(account_temp='1'))

--表示已选择出站口且已选择购票张数

--按下“开始投币”按钮 --系统进入投币状态

if(insert_start='1') then

state<=insert_state;

end if;

--按下“取消”按钮 --回到初始状态

end if;

if(cancel='1') then

state<=initialize_state;

end if;

--投币状态 --纸币识别 --1元纸币

when insert_state=>

case note is

when "0001"=>

total_insert:=total_insert+"00001010";

--重新计算投币总额

when "0010"=>

total_insert:=total_insert+"00010100";

--2元纸币

when "0100"=>

total_insert:=total_insert+"00110010";

--5元纸币

when "1000"=>

total_insert:=total_insert+"01100100";

--10元纸币