基于FPGA的地铁售票机设计VHDL代码ISE仿真

名称：基于FPGA的地铁售票机设计VHDL代码ISE仿真

软件：ISE

语言：VHDL

代码功能：

地铁售票机

一、设计功能要求

1、有两元,三元两种地铁车票。只能用五角、一元两种硬币购票。

2、投入硬币,数管显示投入便币金额,金与所选票价一致,给出车票,并置金额显示为零,否则,退还便币,按“取消”同样退还硬币,并置金额显示为零。

二、画出设计准图

三、说明设计图中各模块功能

四、实验步骤

初步设计:由设计流程图画出顶层原理图草稿

设计时,用两个按扭代替五角、和一元硬门币的投入,三个发光二极管分别代替给出两元、三元车票和退出钱款。

模块设计和调试:设计各个模块,对每一模块进行功能仿真,验其逻时序是否符合设计要求

总体设计调试,完成地铁售票机设计顶层原理,根据所选芯片型号,定义LOC,进行设计实现调试

硬牛验证:根据实际需要在示板上进行部分联线,将程序通过数据电缆由电脑下载到芯片,在演示板上进行设计功能硬件验证

五、实验报告要求

1、地铁售票机功能和工作原理说明

2、画出设计框图和原理图

3、画出设计输入(原理图、VEDL、状态图)

4、记录仿真波形图

5、第一次的硬件验证结果和设计思想是否一致,不一致原因分析,最后的解决方法和最终的硬件验证结果

FPGA代码Verilog/VHDL代码资源下载：www.hdlcode.com

演示视频：

设计文档：

1. 工程文件

2. 程序文件

3. 程序编译

4. RTL图

5. Testbench

6. 仿真图

整体仿真图

按键模块仿真

售货机控制模块仿真

数码管显示模块仿真

部分代码展示:

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
ENTITY?auto_sell?IS
???PORT?(
??????clk_50M????????:?IN?STD_LOGIC;--50M时钟
??????reset_n????????:?IN?STD_LOGIC;--复位,低电平表示按下
??????
??????select_key_n???:?IN?STD_LOGIC;--票价选择按键,低电平表示按下
??????confirm_key_n??:?IN?STD_LOGIC;--确认按键,低电平表示按下
??????cancel_key_n???:?IN?STD_LOGIC;--取消按键,低电平表示按下
??????coin_5_n???????:?IN?STD_LOGIC;--投币0.5元,低电平表示按下
coin_10_n???????:?IN?STD_LOGIC;--投币1元,低电平表示按下
??????
??????buy_succeed_2????:?OUT?STD_LOGIC;--出票指示灯2元，高电平有效
buy_succeed_3????:?OUT?STD_LOGIC;--出票指示灯3元，高电平有效
??????bit_select?????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--数码管位选
??????seg_select?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--数码管段选
???);
END?auto_sell;
ARCHITECTURE?trans?OF?auto_sell?IS
--售货控制模块
component?sell_ctrl?IS
???PORT?(
??????clk????????????:?IN?STD_LOGIC;
??????reset_n????????:?IN?STD_LOGIC;
??????
??????confirm_p??????:?IN?STD_LOGIC;
??????select_p???????:?IN?STD_LOGIC;
??????concel_p???????:?IN?STD_LOGIC;
??????coin_5_p???????:?IN?STD_LOGIC;
coin_10_p???????:?IN?STD_LOGIC;--投币1.0元
??????
??????buy_succeed_2????:?OUT?STD_LOGIC;--出票指示灯2元
buy_succeed_3????:?OUT?STD_LOGIC;--出票指示灯3元
??????select_num?????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????input_money????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????refound_money??:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0)
???);
END?component;
--按键消抖模块
component?key_jitter?IS
???PORT?(
??????clkin????????:?IN?STD_LOGIC;
??????key_in???????:?IN?STD_LOGIC;
??????key_negedge??:?OUT?STD_LOGIC
???);
END?component;
--显示模块
component?display?IS
???PORT?(
??????clk????????????:?IN?STD_LOGIC;
??????
??????select_num?????:?IN?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????input_money????:?IN?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????refound_money??:?IN?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????
??????bit_select?????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);
??????seg_select?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)
???);
END?component;
???SIGNAL?select_num????????:?STD_LOGIC_VECTOR(5?DOWNTO?0);
???SIGNAL?input_money???????:?STD_LOGIC_VECTOR(5?DOWNTO?0);
???SIGNAL?refound_money?????:?STD_LOGIC_VECTOR(5?DOWNTO?0);
???
???SIGNAL?confirm_p?????????:?STD_LOGIC;
???SIGNAL?select_p??????????:?STD_LOGIC;
???SIGNAL?concel_p??????????:?STD_LOGIC;
???SIGNAL?coin_5_p??????????:?STD_LOGIC;
SIGNAL?coin_10_p??????????:?STD_LOGIC;
???
???--?Declare?intermediate?signals?for?referenced?outputs
???SIGNAL?buy_succeed_buf?:?STD_LOGIC;
???SIGNAL?bit_select_buf??:?STD_LOGIC_VECTOR(5?DOWNTO?0);
???SIGNAL?seg_select_buf??:?STD_LOGIC_VECTOR(7?DOWNTO?0);
BEGIN
???bit_select?<=?bit_select_buf;
???seg_select?<=?seg_select_buf;
--调用按键消抖模块???
???i1_key_jitter?:?key_jitter
??????PORT?MAP?(
?????????clkin????????=>?clk_50M,
?????????key_in???????=>?select_key_n,
?????????key_negedge??=>?select_p
??????);
???
???
--调用按键消抖模块???
???i2_key_jitter?:?key_jitter
??????PORT?MAP?(
?????????clkin????????=>?clk_50M,
?????????key_in???????=>?confirm_key_n,
?????????key_negedge??=>?confirm_p
??????);
???
???
--调用按键消抖模块???
???i3_key_jitter?:?key_jitter
??????PORT?MAP?(
?????????clkin????????=>?clk_50M,
?????????key_in???????=>?cancel_key_n,
?????????key_negedge??=>?concel_p
??????);
???
???
--调用按键消抖模块???
???i6_key_jitter?:?key_jitter
??????PORT?MAP?(
?????????clkin????????=>?clk_50M,
?????????key_in???????=>?coin_5_n,
?????????key_negedge??=>?coin_5_p
??????);
--调用按键消抖模块???
???i7_key_jitter?:?key_jitter
??????PORT?MAP?(
?????????clkin????????=>?clk_50M,
?????????key_in???????=>?coin_10_n,
?????????key_negedge??=>?coin_10_p
??????);

点击链接获取代码文件：http://www.hdlcode.com/index.php?m=home&c=View&a=index&aid=810