出租車計(jì)價(jià)設(shè)計(jì)VHDL代碼AX301開發(fā)板Quartus

名稱：出租車計(jì)價(jià)設(shè)計(jì)VHDL代碼AX301開發(fā)板Quartus

軟件：Quartus

語言：VHDL

代碼功能：

1.?實(shí)現(xiàn)計(jì)費(fèi)功能，計(jì)費(fèi)標(biāo)準(zhǔn)為：按行駛里程計(jì)費(fèi)，起步價(jià)為7元，并在車行3Km后按2元/Km計(jì)費(fèi)，當(dāng)計(jì)費(fèi)器達(dá)到或超過20元時(shí)，每公里加收50％的車費(fèi)，車停止不計(jì)費(fèi)。

2.?現(xiàn)場模擬功能：能模擬汽車起動、停止、暫停以及加速等狀態(tài)。

3.?用BCD碼將車費(fèi)和路程顯示出來。

FPGA代碼Verilog/VHDL代碼資源下載：www.hdlcode.com

本代碼已在AX301開發(fā)板驗(yàn)證，開發(fā)板如下，其他開發(fā)板可以修改管腳適配：

演示視頻：

設(shè)計(jì)文檔：

1. 工程文件

2. 程序文件

3. 編譯

4. RTL圖

5. Testbench

6. 仿真圖

部分代碼展示:

LIBRARY?ieee;
???USE?ieee.std_logic_1164.all;
ENTITY?taxi_fee?IS
???PORT?(
??????clk????????:?IN?STD_LOGIC;--50MHz基準(zhǔn)頻率CLOCK0
??????reset??????:?IN?STD_LOGIC;--復(fù)位信號，低有效?
??????stop???????:?IN?STD_LOGIC;--本次行程結(jié)束，停止計(jì)費(fèi)
??????start??????:?IN?STD_LOGIC;--啟動信號，行程開始
wait_key???:?IN?STD_LOGIC;--停車等待信號?
??????bit_select?????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--數(shù)碼管位選
??????seg_select?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--數(shù)碼管段選
???);
END?taxi_fee;
ARCHITECTURE?trans?OF?taxi_fee?IS
--模塊例化
???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;
--數(shù)碼管顯示模塊
COMPONENT?segment_ctrl?IS
???PORT?(
??????clk????????????:?IN?STD_LOGIC;--時(shí)鐘
??????
??????Kmmoney_L????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);----金額十分位，合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
??????Kmmoney_M????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--金額個(gè)位
??????Kmmoney_H????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--金額十位
??????--總路程，里程范圍為HL=0~99（BCD碼顯示）
??????Kmcount_H????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--里程十位
??????Kmcount_L????:?IN?STD_LOGIC_VECTOR(3?DOWNTO?0);--里程個(gè)位
??????
??????bit_select?????:?OUT?STD_LOGIC_VECTOR(5?DOWNTO?0);--數(shù)碼管位選
??????seg_select?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--數(shù)碼管段選
???);
END?COMPONENT;
--模塊例化???
???COMPONENT?speed_pulse?IS
??????PORT?(
?????????clk????????:?IN?STD_LOGIC;
?????????reset??????:?IN?STD_LOGIC;
?????????one_kilometre?:?OUT?STD_LOGIC
??????);
???END?COMPONENT;
--模塊例化
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;--停車等待信號?
??????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;
???
--信號定義
???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);--合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
???SIGNAL?Kmmoney_M??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
???SIGNAL?Kmmoney_H??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
???SIGNAL?Kmcount_H??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--總路程，里程范圍為HL=0~99（BCD碼顯示）
???SIGNAL?Kmcount_L??:?STD_LOGIC_VECTOR(3?DOWNTO?0);--總路程，里程范圍為HL=0~99（BCD碼顯示）
BEGIN
???--速度脈沖產(chǎn)生模塊
???U_speed_pulse?:?speed_pulse
??????PORT?MAP?(
?????????clk?????????????=>?clk,--標(biāo)準(zhǔn)時(shí)鐘
?????????reset???????????=>?reset,--復(fù)位信號，低有效?
?????????one_kilometre???=>?one_kilometre--1公里產(chǎn)生一次脈沖
??????);
???
???
???--計(jì)費(fèi)模塊
???U_taxi_state?:?taxi_state
??????PORT?MAP?(
?????????clk??????????????=>?clk,--標(biāo)準(zhǔn)時(shí)鐘
?????????reset????????????=>?reset,--復(fù)位信號，低有效?
?????????stop?????????????=>?stop,--本次行程結(jié)束，停止計(jì)費(fèi)，高有效
?????????start????????????=>?start,--啟動信號，行程開始，高有效?
?????????wait_key?????????=>?wait_key,--停車等待信號?
?????????one_kilometre????=>?one_kilometre,--1公里產(chǎn)生一次脈沖
?????????mileage_out??????=>?mileage,
?????????totel_money_out??=>?totel_money--合計(jì)費(fèi)用
??????);
???
???
???----BCD碼轉(zhuǎn)換模塊
???U_display?:?display
??????PORT?MAP?(
?????????clk??????????=>?clk,--標(biāo)準(zhǔn)時(shí)鐘
?????????reset????????=>?reset,--復(fù)位信號，低有效?
?????????totel_money??=>?totel_money,--費(fèi)用
?????????mileage??????=>?mileage,--里程
?????????Kmmoney_L????=>?Kmmoney_L,--合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
?????????Kmmoney_M????=>?Kmmoney_M,
?????????Kmmoney_H????=>?Kmmoney_H,
?????????
?????????Kmcount_H????=>?Kmcount_H,--總路程，里程范圍為HL=0~99（BCD碼顯示）
?????????Kmcount_L????=>?Kmcount_L
??????);
???
--數(shù)碼管顯示模塊
U_segment_ctrl:?segment_ctrl
???PORT?MAP(
??????clk??????????=>?clk,--時(shí)鐘
??????
??????Kmmoney_L????=>?Kmmoney_L,----金額十分位，合計(jì)費(fèi)用?HML=xxx?（BCD碼顯示）
??????Kmmoney_M????=>?Kmmoney_M,--金額個(gè)位
??????Kmmoney_H????=>?Kmmoney_H,--金額十位
??????--總路程，里程范圍為HL=0~99（BCD碼顯示）
??????Kmcount_H????=>?Kmcount_H,--里程十位
??????Kmcount_L????=>?Kmcount_L,--里程個(gè)位
??????
??????bit_select??=>?bit_select,--數(shù)碼管位選
??????seg_select??=>?seg_select--數(shù)碼管段選
???);
END?trans;

點(diǎn)擊鏈接獲取代碼文件：http://www.hdlcode.com/index.php?m=home&c=View&a=index&aid=331