出租车计价设计VHDL代码AX301开发板Quartus

名称：出租车计价设计VHDL代码AX301开发板Quartus

软件：Quartus

语言：VHDL

代码功能：

具体如下：

1.实现计费功能，计费标准为：按行驶里程计费，起步价为7元，并在车行3Km后按2元/Km计费，当计费器达到或超过20元时，每公里加收50％的车费，车停止不计费。

2.现场模拟功能：能模拟汽车起动、停止、暂停以及加速等状态。

3.用BCD码将车费和路程显示出来。

本代码已在AX301开发板验证，开发板如下，其他开发板可以修改管脚适配：

1. 工程文件

2. 程序文件

3. 程序编译

4. 仿真图

Testbench

4.1 整体仿真

4.2 显示模块

4.3 速度脉冲模块

4.4 计费模块

部分代码展示:

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
ENTITY?taxi_fee?IS
???PORT?(
??????clk????????:?IN?STD_LOGIC;--50MHz基准频率CLOCK0
??????reset??????:?IN?STD_LOGIC;--复位信号，低有效?
??????stop???????:?IN?STD_LOGIC;--本次行程结束，停止计费
??????start??????:?IN?STD_LOGIC;--启动信号，行程开始
wait_key???:?IN?STD_LOGIC;--停车等待信号?
??????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?taxi_fee;
ARCHITECTURE?trans?OF?taxi_fee?IS
--模块例化
???COMPONENT?display?IS
??????PORT?(
?????????clk????????:?IN?STD_LOGIC;
?????????reset??????:?IN?STD_LOGIC;
?????????totel_money?:?IN?STD_LOGIC_VECTOR(15?DOWNTO?0);
?????????mileage????:?IN?STD_LOGIC_VECTOR(7?DOWNTO?0);
?????????Kmmoney_L??:?OUT?STD_LOGIC_VECTOR(3?DOWNTO?0);
?????????Kmmoney_M??:?OUT?STD_LOGIC_VECTOR(3?DOWNTO?0);
?????????Kmmoney_H??:?OUT?STD_LOGIC_VECTOR(3?DOWNTO?0);
?????????Kmcount_H??:?OUT?STD_LOGIC_VECTOR(3?DOWNTO?0);
?????????Kmcount_L??:?OUT?STD_LOGIC_VECTOR(3?DOWNTO?0)
??????);
???END?COMPONENT;
--数码管显示模块
COMPONENT?segment_ctrl?IS
???PORT?(
??????clk????????????:?IN?STD_LOGIC;--时钟
??????
??????Kmmoney_L????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);----金额十分位，合计费用?HML=xxx?（BCD码显示）
??????Kmmoney_M????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--金额个位
??????Kmmoney_H????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--金额十位
??????--总路程，里程范围为HL=0~99（BCD码显示）
??????Kmcount_H????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--里程十位
??????Kmcount_L????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--里程个位
??????
??????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?COMPONENT;
--模块例化???
???COMPONENT?speed_pulse?IS
??????PORT?(
?????????clk????????:?IN?STD_LOGIC;
?????????reset??????:?IN?STD_LOGIC;
?????????one_kilometre?:?OUT?STD_LOGIC
??????);
???END?COMPONENT;
--模块例化
COMPONENT?taxi_state?IS
???PORT?(
??????clk??????????????:?IN?STD_LOGIC;
??????reset????????????:?IN?STD_LOGIC;
??????
??????stop?????????????:?IN?STD_LOGIC;
??????start????????????:?IN?STD_LOGIC;
??????wait_key???:?IN?STD_LOGIC;--停车等待信号?
??????one_kilometre????:?IN?STD_LOGIC;
??????mileage_out??????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0);
??????totel_money_out??:?OUT?STD_LOGIC_VECTOR(15?DOWNTO?0)
???);
???END?COMPONENT;
???
--信号定义
???SIGNAL?one_kilometre???:?STD_LOGIC;
???SIGNAL?totel_money?????:?STD_LOGIC_VECTOR(15?DOWNTO?0);
???SIGNAL?mileage?????????:?STD_LOGIC_VECTOR(7?DOWNTO?0);
???SIGNAL?Kmmoney_L??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--合计费用?HML=xxx?（BCD码显示）
???SIGNAL?Kmmoney_M??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--合计费用?HML=xxx?（BCD码显示）
???SIGNAL?Kmmoney_H??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--合计费用?HML=xxx?（BCD码显示）
???SIGNAL?Kmcount_H??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--总路程，里程范围为HL=0~99（BCD码显示）
???SIGNAL?Kmcount_L??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--总路程，里程范围为HL=0~99（BCD码显示）
BEGIN
???--速度脉冲产生模块
???U_speed_pulse?:?speed_pulse
??????PORT?MAP?(
?????????clk?????????????=>?clk,--标准时钟
?????????reset???????????=>?reset,--复位信号，低有效?
?????????one_kilometre???=>?one_kilometre--1公里产生一次脉冲
??????);
???
???
???--计费模块
???U_taxi_state?:?taxi_state
??????PORT?MAP?(
?????????clk??????????????=>?clk,--标准时钟
?????????reset????????????=>?reset,--复位信号，低有效?
?????????stop?????????????=>?stop,--本次行程结束，停止计费，高有效
?????????start????????????=>?start,--启动信号，行程开始，高有效?
?????????wait_key?????????=>?wait_key,--停车等待信号?
?????????one_kilometre????=>?one_kilometre,--1公里产生一次脉冲
?????????mileage_out??????=>?mileage,
?????????totel_money_out??=>?totel_money--合计费用
??????);
???
???
???----BCD码转换模块
???U_display?:?display
??????PORT?MAP?(
?????????clk??????????=>?clk,--标准时钟
?????????reset????????=>?reset,--复位信号，低有效?
?????????totel_money??=>?totel_money,--费用
?????????mileage??????=>?mileage,--里程
?????????Kmmoney_L????=>?Kmmoney_L,--合计费用?HML=xxx?（BCD码显示）
?????????Kmmoney_M????=>?Kmmoney_M,
?????????Kmmoney_H????=>?Kmmoney_H,
?????????
?????????Kmcount_H????=>?Kmcount_H,--总路程，里程范围为HL=0~99（BCD码显示）
?????????Kmcount_L????=>?Kmcount_L
??????);
???
--数码管显示模块
U_segment_ctrl:?segment_ctrl
???PORT?MAP(
??????clk??????????=>?clk,--时钟
??????
??????Kmmoney_L????=>?Kmmoney_L,----金额十分位，合计费用?HML=xxx?（BCD码显示）
??????Kmmoney_M????=>?Kmmoney_M,--金额个位
??????Kmmoney_H????=>?Kmmoney_H,--金额十位
??????--总路程，里程范围为HL=0~99（BCD码显示）
??????Kmcount_H????=>?Kmcount_H,--里程十位
??????Kmcount_L????=>?Kmcount_L,--里程个位
??????
??????bit_select??=>?bit_select,--数码管位选
??????seg_select??=>?seg_select--数码管段选
???);
END?trans;

源代码

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