軟件:Quartus
語言:VHDL
代碼功能:
十字路口交通燈控制器的VHDL設(shè)計(jì)(每班21號(hào)以后的單號(hào))
設(shè)計(jì)要求:利用硬件描述語言和FPGA器件,設(shè)計(jì)實(shí)現(xiàn)一個(gè)由一條主干道和一條支干道的匯合點(diǎn)形成的十字交叉路口的交通燈控制器,具體要求如下:
(1)主、支干道各設(shè)有一個(gè)綠、黃、紅指示燈,兩個(gè)顯示數(shù)碼管。
(2)在主干道和支干道的兩個(gè)方向上各設(shè)有一組綠、黃、紅交通燈,其中一個(gè)方向是綠燈、黃燈、紅燈,另一個(gè)方向是紅燈、綠燈、黃燈。
(3)數(shù)碼管以倒計(jì)時(shí)的方式顯示允許通行或禁止通行的時(shí)間,主干道每次放行40s60s70s,支干道每次放行20s30s40s50s,在每次由亮綠燈變成亮紅燈的轉(zhuǎn)換過程中要亮5s的黃燈作為過渡,并進(jìn)行減計(jì)時(shí)顯示,時(shí)鐘信號(hào)由實(shí)驗(yàn)箱上50MHz分頻得到1H。
(4)設(shè)置交主干道優(yōu)先通行電路(選做
各放行定時(shí)器的實(shí)體名為:XXX放行時(shí)間,XXX為自己姓名的首字母。
任務(wù)學(xué)號(hào)對(duì)應(yīng):21、23、25號(hào)選(70150);27、29、31選(60140)33、35、37-選(5030);39、41、43選(40120)。
FPGA代碼Verilog/VHDL代碼資源下載:www.hdlcode.com
演示視頻:
設(shè)計(jì)文檔:
1. 工程文件
2. 程序文件
3. 程序編譯
4. RTL圖
5. 仿真圖
整體仿真圖
分頻模塊
紅綠燈控制模塊
上圖顯示了主路和支路的紅綠燈以及對(duì)應(yīng)的倒計(jì)時(shí)
數(shù)碼管顯示模塊
上圖仿真了主路數(shù)碼管顯示10,支路數(shù)碼管顯示18
部分代碼展示:
LIBRARY?ieee; ???USE?ieee.std_logic_1164.all; ???USE?ieee.std_logic_unsigned.all; --控制模塊 ENTITY?QJP_6040_RGY?IS ???PORT?( ??????clk_1????:?IN?STD_LOGIC; clk????:?IN?STD_LOGIC; reset??:?IN?STD_LOGIC;--復(fù)位 --主路 ??????R1???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) ??????G1???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) ??????Y1???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) --支路 ??????R2???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) ??????G2???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) ??????Y2???????:?OUT?STD_LOGIC;--紅綠燈信號(hào) ??????SMG1?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0);--輸出數(shù)碼管顯示數(shù) ??????SMG2?????:?OUT?STD_LOGIC_VECTOR(7?DOWNTO?0)--輸出數(shù)碼管顯示數(shù) ???); END?QJP_6040_RGY; ARCHITECTURE?behave?OF?QJP_6040_RGY?IS ????SIGNAL??G1_time??:?STD_LOGIC_VECTOR(7?DOWNTO?0);--對(duì)應(yīng)燈時(shí)間 ????SIGNAL??Y1_time??:?STD_LOGIC_VECTOR(7?DOWNTO?0);--對(duì)應(yīng)燈時(shí)間 ????SIGNAL??G2_time??:?STD_LOGIC_VECTOR(7?DOWNTO?0);--對(duì)應(yīng)燈時(shí)間 ????SIGNAL??Y2_time??:?STD_LOGIC_VECTOR(7?DOWNTO?0);--對(duì)應(yīng)燈時(shí)間??? ???SIGNAL?state????:?STD_LOGIC_VECTOR(2?DOWNTO?0)?:=?"000"; ???SIGNAL?G1_cnt???:?STD_LOGIC_VECTOR(7?DOWNTO?0)?:=?"00000001"; ???SIGNAL?Y1_cnt???:?STD_LOGIC_VECTOR(7?DOWNTO?0)?:=?"00000001"; ???SIGNAL?G2_cnt???:?STD_LOGIC_VECTOR(7?DOWNTO?0)?:=?"00000001"; ???SIGNAL?Y2_cnt???:?STD_LOGIC_VECTOR(7?DOWNTO?0)?:=?"00000001";?? ???--?Declare?intermediate?signals?for?referenced?outputs ???SIGNAL?R1_temp?:?STD_LOGIC:='0'; ???SIGNAL?G1_temp?:?STD_LOGIC:='0'; ???SIGNAL?Y1_temp?:?STD_LOGIC:='0'; ???SIGNAL?R2_temp?:?STD_LOGIC:='0'; ???SIGNAL?G2_temp?:?STD_LOGIC:='0'; ???SIGNAL?Y2_temp?:?STD_LOGIC:='0'; ????SIGNAL??G1_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) ????SIGNAL??Y1_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) ????SIGNAL??R1_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) ????SIGNAL??G2_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) ????SIGNAL??Y2_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) ????SIGNAL??R2_BCD???:??STD_LOGIC_VECTOR(7?DOWNTO?0);--正計(jì)時(shí) BEGIN --設(shè)置時(shí)間,可自行修改時(shí)間, --主路紅燈時(shí)間等于支路綠燈加黃燈 --支路紅燈時(shí)間等于主路綠燈加黃燈 ???G1_time?<=?"00111100";--主路綠燈60s ???Y1_time?<=?"00000101";--主路黃燈5s ???G2_time?<=?"00101000";--支路綠燈40s ???Y2_time?<=?"00000101";--支路黃燈5s ???--?Drive?referenced?outputs ???R1?<=?R1_temp;--紅 ???G1?<=?G1_temp;--綠 ???Y1?<=?Y1_temp;--黃燈 ???R2?<=?R2_temp;--紅 ???G2?<=?G2_temp;--綠 ???Y2?<=?Y2_temp;--黃燈 ??? ???PROCESS?(clk_1,reset) ???BEGIN if(reset='1')THEN state?<=?"001";--異步復(fù)位 elsIF?(clk_1'EVENT?AND?clk_1?=?'1')?THEN ?????????CASE?state?IS ????????????WHEN?"001"?=>--主路綠燈 ???????????????IF?(G1_cnt?<?G1_time)?THEN ??????????????????state?<=?"001"; ??????????????????G1_cnt?<=?G1_cnt?+?"00000001"; ???????????????ELSE ??????????????????state?<=?"010";--//計(jì)時(shí)到后切換下一狀態(tài) ??????????????????G1_cnt?<=?"00000001"; ???????????????END?IF; ????????????WHEN?"010"?=>--主路黃燈 ???????????????IF?(Y1_cnt?<?Y1_time)?THEN ??????????????????state?<=?"010"; ??????????????????Y1_cnt?<=?Y1_cnt?+?"00000001"; ???????????????ELSE ??????????????????state?<=?"011";--計(jì)時(shí)到后切換下一狀態(tài) ??????????????????Y1_cnt?<=?"00000001"; ???????????????END?IF; ????????????WHEN?"011"?=>--支路綠燈 ???????????????IF?(G2_cnt?<?G2_time)?THEN ??????????????????state?<=?"011"; ??????????????????G2_cnt?<=?G2_cnt?+?"00000001"; ???????????????ELSE ??????????????????state?<=?"100";--計(jì)時(shí)到后切換下一狀態(tài) ??????????????????G2_cnt?<=?"00000001"; ???????????????END?IF; ????????????WHEN?"100"?=>--支路黃燈 ???????????????IF?(Y2_cnt?<?Y2_time)?THEN ??????????????????state?<=?"100"; ??????????????????Y2_cnt?<=?Y2_cnt?+?"00000001"; ???????????????ELSE ??????????????????state?<=?"001";--計(jì)時(shí)到后切換下一狀態(tài) ??????????????????Y2_cnt?<=?"00000001"; ???????????????END?IF; ????????????WHEN?OTHERS?=> ???????????????state?<=?"001"; ?????????END?CASE; ??????END?IF; ???END?PROCESS; ??? ???--控制東西方向交通燈 ???PROCESS?(clk_1) ???BEGIN ??????IF?(clk_1'EVENT?AND?clk_1?=?'1')?THEN ?????????IF?(state?=?"001")?THEN ????????????G1_temp?<=?'1'; ?????????ELSE ????????????G1_temp?<=?'0'; ?????????END?IF; ?????????IF?(state?=?"010")?THEN ????????????Y1_temp?<=?'1'; ?????????ELSE ????????????Y1_temp?<=?'0'; ?????????END?IF; ?????????IF?(state?=?"011"?OR?state?=?"100")?THEN ????????????R1_temp?<=?'1'; ?????????ELSE ????????????R1_temp?<=?'0'; ?????????END?IF; ??????END?IF; ???END?PROCESS; ??? ???--控制南北方向交通燈 ???PROCESS?(clk_1) ???BEGIN ??????IF?(clk_1'EVENT?AND?clk_1?=?'1')?THEN ?????????IF?(state?=?"011")?THEN ????????????G2_temp?<=?'1'; ?????????ELSE ????????????G2_temp?<=?'0'; ?????????END?IF; ?????????IF?(state?=?"100"?)?THEN ????????????Y2_temp?<=?'1'; ?????????ELSE ????????????Y2_temp?<=?'0'; ?????????END?IF; ?????????IF?(state?=?"001"?OR?state?=?"010")?THEN ????????????R2_temp?<=?'1'; ?????????ELSE ????????????R2_temp?<=?'0'; ?????????END?IF; ??????END?IF; ???END?PROCESS;
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