鍙橀噺涓庝俊鍙风殑寮傚悓锛?/p>
1
锛夊彉閲忔槸灞�閮ㄩ噺锛屽彧鑳藉湪杩涚▼鍜屽瓙绋嬪簭涓娇鐢紝涓嶈兘灏嗕俊鎭甫鍑哄瀹冨仛鍑哄畾涔?/p>
鐨勫綋鍓嶇粨鏋勶紝
涓昏鐢ㄤ綔杩涚▼涓殑涓存椂鏁版嵁瀛樺偍鍗曞厓锛?/p>
淇″彿鏄數璺唴閮ㄧ‖浠跺疄浣撶浉
浜掕繛鎺ョ殑鎶借薄琛ㄧず锛?/p>
鐩稿綋浜庣數璺唴閮ㄧ殑杩炴帴绾匡紝
鍏锋湁鍏ㄥ眬鎬х壒寰侊紝
淇″彿瀹氫箟鍜屼娇
鐢ㄧ殑鑼冨洿鏄疄浣撱�?/p>
缁撴瀯浣撳拰绋嬪簭鍖咃紝
鍙互浣滀负璁捐瀹炰綋涓殑骞惰璇彞妯″潡
锛堣繘绋嬶級
涔嬮棿浜ゆ祦淇℃伅鐨勯�氶亾銆?/p>
2
锛夊彉閲忕殑璧嬪�兼槸鐞嗘兂鍖栫殑鏁版嵁浼犺緭锛岀珛鍗冲彂鐢燂紝涓嶅瓨鍦ㄥ欢鏃讹紱淇″彿鐨勮祴鍊煎彲浠?/p>
璁剧疆寤舵椂閲忥紝鍗充娇鏄浂寤舵椂锛屼篃瑕佺粡鍘嗕竴涓壒瀹氱殑寤舵椂锛屽嵆
未
寤舵椂锛屼笌瀹為檯鍣ㄤ欢
鐨勪紶鎾欢杩熺壒鎬х浉鍚诲悎
,
鍦ㄨ繘绋嬬殑鏈�鍚庢墠瀵逛俊鍙疯祴鍊笺�?/p>
3
锛夊彉閲忓畾涔夊湪杩涚▼鎴栧瓙绋嬪簭涓紝淇″彿涓嶅彲浠ャ�?/p>
4
锛変俊鍙峰彲浠ュ垪鍏ヨ繘绋嬬殑鏁忔劅琛紝浣嗘槸鍙橀噺涓嶈銆?/p>
5
锛変俊鍙疯祴鍊兼湁骞惰璧嬪�煎拰椤哄簭璧嬪�硷紝骞惰璧嬪�间笉鍏佽鏈夊涓┍鍔ㄦ簮锛岃繘绋嬩腑鐨?/p>
椤哄簭淇″彿璧嬪�艰鍙ュ彲浠ユ湁澶氫釜椹卞姩婧愶紝浣嗘槸鍙湁鏈�鍚庣殑璧嬪�艰鍙ヨ鍚姩銆?/p>
6
锛夊緢澶氭儏鍐典笅锛岀患鍚堝悗瀵瑰簲鐨勭‖浠剁數璺粨鏋勪腑淇″彿鍜屽彉閲忔槸娌℃湁浠�涔堝尯鍒殑銆?/p>
A<=5
渚?/p>
1
D
瑙﹀彂鍣ㄤ箣鍙橀噺
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY dff1 IS
PORT(CLK,D1:IN STD_LOGIC;
Q1:OUT STD_LOGIC);
END;
ARCHITECTURE behav OF dff1 IS
BEGIN
PROCESS(CLK,d1)
V
ARIABLE QQ:STD_LOGIC;
BEGIN
IF CLK'EVENT AND CLK='1' THEN
QQ:=D1;
END IF;
Q1<=QQ;
END PROCESS;
--Q1<=QQ;
END;
渚?/p>
2
D
瑙﹀彂鍣ㄤ箣淇″彿
LIBRARY IEEE;
D
ENA
Q
PRE
CLR
CLK
D1
Q1