汽车尾灯控制器EDA课程设计主控程序 -

标题: 汽车尾灯控制器EDA课程设计主控程序 [打印本页]

作者: fpgaeda 时间: 2018-12-7 11:51
标题: 汽车尾灯控制器EDA课程设计主控程序
主控模块程序：

LIBRARY IEEE;

USE IEEE.STD_LOGIC_1164.ALL;

ENTITY master  IS

PORT(LEFT,RIGHT,BRAKE,FOG,BACK:IN STD_LOGIC;-定义端口

LP,RP,LR,F,B,BRAKE_LED:OUT  STD_LOGIC);

END;

ARCHITECTURE  ART  OF  master IS

BEGIN

BRAKE_LED<=BRAKE;-将刹车信号BRAKE给输出脉冲BRAKE_LED

F<=FOG;       -将雾灯模式FOG给输出脉冲F

B<=BACK; -将倒车模式BACK给输出脉冲B

PROCESS(LEFT,RIGHT)

VARIABLE  TEMP:STD_LOGIC_VECTOR(1 DOWNTO 0);

BEGIN

TEMP:=LEFT&RIGHT;

CASE  TEMP IS

WHEN"00"=>LP<='0';RP<='0';LR<='0';

WHEN"01"=>LP<='0';RP<='1';LR<='0';右转弯输出脉冲

WHEN"10"=>LP<='1';RP<='0';LR<='0'左转弯输出脉冲;

WHEN OTHERS =>LP<='0';RP<='0';LR<='1';无效

END CASE;

END PROCESS;

END  ARCHITECTURE ART;

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