VHDL-交换机正确的代码

Question

你好，我想完成这件事

（点击）

，我已经写了这个代码，是正确的吗？ 因为我在MAX + PLUS II编译器不显示任何错误...

LIBRARY IEEE; 
USE IEE.STD_LOGIC_1164.ALL; 

ENTITY alarm IS PORT 
(ON/OFF,MOTION_SENSOR,.LIGHT_SENSOR,.SOUND_SENSOR,.CAMERA_SENSOR,.IP_SENSOR,.TEMPERATURE_SENSOR: IN STD_LOGIC; 
SENSOR_SIRINE,SENSOR_LIGHT:OUT STD_LOGIC); 
END alarm; 

ARCHITECTURE LEITOURGEIA OF alarm IS 
BEGIN 
if (ON/OFF='1' AND (MOTION_SENSOR='1' OR LIGHT_SENSOR='1' OR SOUND_SENSOR='1' OR CAMERA_SENSOR='1' OR IP_SENSOR='1' OR TEMPERATURE_SENSOR='1')) then 
SENSOR_LIGHT<='1'; 
SENSOR_SIRINE<='1'; 

ELSE IF (ON/OFF='0' AND (MOTION_SENSOR='1' OR LIGHT_SENSOR='1' OR SOUND_SENSOR='1' OR CAMERA_SENSOR='1' OR IP_SENSOR='1' OR TEMPERATURE_SENSOR='1')) then 
SENSOR_LIGHT<='1'; 
SENSOR_SIRINE<='0'; 

ELSE 
SENSOR_LIGHT<='0'; 
SENSOR_SIRINE<='0'; 

END IF 

END LEITOURGEIA; 

Answer 1

这是你的代码是什么样子的有效VHDL近似：

library ieee; 
use ieee.std_logic_1164.all; 

entity alarm is 
    port (
     on_off, motion_sensor, light_sensor, 
     sound_sensor, camera_sensor, ip_sensor, 
     temperature_sensor:   in std_logic; 
     sensor_sirine, sensor_light: out std_logic 
    ); 
end alarm; 

architecture leitourgeia of alarm is 
begin 
unlabelled: 
    process (on_off, motion_sensor, light_sensor, sound_sensor, 
      camera_sensor, ip_sensor, temperature_sensor) 
    begin 
     if on_off = '1' and 
      (motion_sensor = '1' or light_sensor = '1' or sound_sensor = '1' or 
      camera_sensor = '1' or ip_sensor = '1' or temperature_sensor='1') then 
      sensor_light <= '1'; 
      sensor_sirine <= '1'; 
     elsif on_off = '0' and 
      (motion_sensor = '1' or light_sensor = '1' or sound_sensor = '1' or 
      camera_sensor = '1' or ip_sensor = '1' or temperature_sensor = '1') then 
      sensor_light <= '1'; 
      sensor_sirine <= '0'; 
     else 
      sensor_light <= '0'; 
      sensor_sirine <= '0'; 
     end if; 
    end process; 
end leitourgeia; 

我缩进它，固定一些拼写错误，使有效的标识符，把if语句放在一个进程中，并使elsifelsif，加上摆脱两组多余的括号。

它现在分析，阐述和模拟。

所以做这种架构：

architecture foo of alarm is 
    signal alarm_light: std_logic; 
begin 
    alarm_light <= motion_sensor or sound_sensor or light_sensor or 
        camera_sensor or ip_sensor or temperature_sensor; 

    sensor_light <= alarm_light; 

    sensor_sirine <= '1' when alarm_light = '1' and on_off = '1' else 
        '0'; 
end architecture foo; 

哪个更类似于参考电路图像。在`结束后if`

architecture fum of alarm is 
    signal alarm_light: std_logic; 
begin 
    alarm_light <= motion_sensor or sound_sensor or light_sensor or 
        camera_sensor or ip_sensor or temperature_sensor; 

    sensor_light <= alarm_light; 

    sensor_sirine <= on_off and alarm_light; 
end architecture fum;