毕业设计-EDA技术交通灯控制器课程设计

课程设计报告课程设计：交通灯控制器一：实验目的：实现高速公路与乡间小路的交叉路口红绿灯的控制二：功能要求：只有在小路上发现汽车时，高速公路上的交通灯才可能变为红灯。当汽车行驶在小路上时、小路的交通灯保持为绿灯，但不能超过给定的延迟时间.〔注；这段时间定义为20S时间）。高速公路灯转为绿灯后，即使小路上有汽车出现,而高速公路上并无汽车，也将在给定的时间内保持高速公路绿灯（注：这段时间定义为60S）。三：设计思路：五：VHDL源程序：LIBRARYieee;USEieee.std_logic_1164.all;USEIEEE.STD_LOGIC_UNSIGNED.ALL;ENTITYTrafficLightISPORT(Clk :INSTD_LOGIC;S,Reset :INSTD_LOGIC;mg,my,mr,cg,cy,cr:OUTSTD_LOGIC);ENDTrafficLight;ARCHITECTURErtlOFTrafficLightISTYPETrafficStateIS(mgcr,mycr,mrcg,mrcy);SIGNALcurrent_state,next_state:TrafficState;SIGNALCount :STD_LOGIC_VECTOR(5DOWNTO0);SIGNALClrn:STD_LOGIC;BEGINCounter:PROCESS(clk)BEGINIFReset='1'OR(Clrn='1'ANDNOT(Count="000000"))THENCount<="000000";ELSIFclk'EVENTANDclk='1'THENIFNOT(s='0'ANDcurrent_state=mgcr)THENCount<=Count+1;ENDIF;ENDIF;ENDPROCESSCounter;StateTransition:PROCESS(clk,Count,current_state)BEGINIFReset='1'THENnext_state<=mgcr;Clrn<='0';ELSIFclk'EVENTANDclk='1'THENCASEcurrent_stateISWHENmgcr=>mr<='0';mg<='1';my<='0';cr<='1';cg<='0';cy<='0';IFCount>="111011"ANDS='1'THENnext_state<=mycr;Clrn<='1';ELSEClrn<='0';ENDIF;WHENmycr=>mr<='0';mg<='0';my<='1';cr<='1';cg<='0';cy<='0';IFCount>="000100"THENnext_state<=mrcg;Clrn<='1';ELSEClrn<='0';ENDIF;WHENmrcg=>mr<='1';mg<='0';my<='0';cr<='0';cg<='1';cy<='0';IFCount>="010011"ORS='0'THENnext_state<=mrcy;Clrn<='1';ELSEClrn<='0';ENDIF;WHENmrcy=>mr<='1';mg<='0';my<='0';cr<='0';cg<='0';cy<='1';IFCount>="000100"THENnext_state<=mgcr;Clrn<='1';ELSEClrn<='0';ENDIF;WHENOTHERS=>NULL;ENDCASE;ENDIF;ENDPROCESSStateTransition;PROCESS(clk)

BEGINIFclk'EVENTANDclk=TTHENcurrent_state<=next_state;ENDIF;ENDPROCESS;ENDrtl;仿真图如下：]Irrlehel虧92s■■J—Lk-GTmr-E*egWCOLitvalue:43— aonoHW1Q0s2D■■J—Lk-GTmr-E*egWCOLitvalue:43— aonoHW1Q0s2D：0s.400=atDs700=EOOsMimUUUUUUUUUUUUUUUUUUUUUUUUUUUUUWWWUUUUUUUUUUUUUUUUUUUUUUUUUUUUUWWimnR□yELrran1_f1ahfi：口ipne>i_et3ie□F17|d0taa[^£i|口j/rierjd湘0]HDHDHLCHW0DOO匚DJLLJL六：实验心得：通过本