鎽� 瑕侊細鍒嗘瀽浜嗛噰鐢ㄥ濯掗珨瀹氭檪鍣ㄩ€茶鏁�(sh霉)鎿�(j霉)閲囬泦鐨勭壒榛炲拰閲囬泦閬庣▼涓嚭鐝�(xi脿n)鐨勫晱椤�锛岄噰鐢ㄤ簡PMAC鐨勯洐绔彛RAM鎶€琛�(sh霉)鑸囧濯掗珨瀹氭檪鍣ㄦ妧琛�(sh霉)鐩哥祼(ji茅)鍚堢殑鏁�(sh霉)鎿�(j霉)瀵︽檪閲囬泦鏂瑰紡锛屽湪鏁�(sh霉)鎺у嚫杓桓纾ㄥ簥涓婇€茶浜嗗椹�锛屽彇寰椾簡婊挎剰鐨勬晥鏋溿€傝┎鏂规硶鑸囬噰鐢ㄥ绶氱▼鎶€琛�(sh霉)閫茶鏁�(sh霉)鎿�(j霉)閲囬泦鏂规硶鐩告瘮锛屾柟娉曠啊鍠�銆佸畨鍏ㄦ€уソ銆� 闂�(gu膩n)閸佃锛�PMAC;瀵︽檪鏁�(sh霉)鎿�(j霉)閲囬泦;闆欑鍙AM;澶氬獟楂斿畾鏅傚櫒;澶氱窔绋嬫妧琛�(sh霉) Abstract: The advantages and faults Data acquisition with multimedia timer are analyzed, and dual ported combined with multimedia timer are adapted in this paper, which experimentation results is effective on the Grinding of Camshaft. Compared with the way of multi-thread technique in data acquisition, this method is simple and the safety is well. Key words: PMAC; Real Time Data Acquisition; Dual Ported RAM; Multimedia Timer; Multi-thread technique; 銆€銆€澶氬獟楂斿畾鏅傚櫒鐢变簬瀹氭檪绮惧害楂�锛屽洜鑰屽湪鏁�(sh霉)鎿�(j霉)閲囬泦鏂归潰鎳�(y墨ng)鐢ㄥ唬娉涖€傞噰鐢ㄥ濯掗珨瀹氭檪鍣ㄥ皪鍩轰簬PMAC鐨勬暩(sh霉)鎺ф搴婇€茶閬嬪嫊鍙冩暩(sh霉)閲囬泦锛屽鏋滈噰闆嗛噺杓冨鑰屾檪闁撻枔闅旇純鐭�锛屽皣鏈冪櫦(f膩)鐢熷収(n猫i)瀛樿畝鍙栭尟瑾や箖鑷虫姗�锛屼娇鍔犲伐绋嬪簭涓柗锛屽涓嶅強鏅傛竻闄ょ珐娌栧崁(q奴)鍏�(n猫i)鏈煼(zh铆)琛岀殑鍔犲伐鏁�(sh霉)鎿�(j霉)锛屼笅娆″暉鍕曟檪锛屽皣鏈冮€犳垚闁嬬挵(hu谩n) 鈥滈杌娾€�锛岄€欐槸鍗佸垎鍗遍毆鐨�銆備絾閲囩敤PMAC鐨勯洐绔彛RAM閫茶鏁�(sh霉)鎿�(j霉)璁€鍙栵紝涓嶄絾鏈夋晥閬垮厤浜嗛€欎竴鍟忛锛岃€屼笖閭勫ぇ澶х啊鍖栦簡鏁�(sh霉)鎿�(j霉)閲囬泦閬庣▼锛屽湪鏁�(sh霉)鎺у嚫杓桓纾ㄥ簥涓婇€茶鐨勯噰闆嗘噳(y墨ng)鐢ㄩ亷绋嬩腑锛屽彇寰椾簡婊挎剰鐨勬晥鏋溿€傝┎鏂规硶鑸囬噰鐢ㄥ绶氱▼鎶€琛�(sh霉)閫茶鏁�(sh霉)鎿�(j霉)閲囬泦鐩告瘮锛屽劒(y艒u)鍕㈡槑椤€� 1 PMAC鍗＄啊浠� 銆€銆€PMAC锛圥rogrammable Multi-Axis Controller锛屽彲绶ㄧ▼澶氳桓鎺у埗鍣級鏄編鍦婦elta Tau鍏徃涔濆崄骞翠唬鎺ㄥ嚭鐨勫熀浜嶱C骞宠嚭鐨勯枊鏀惧紡澶氳桓閬嬪嫊鎺у埗鍣�銆傚畠閲囩敤浜哅otorola鍏徃鐨凞SP56绯诲垪楂樻€ц兘鏁�(sh霉)瀛椾俊铏熻檿鐞嗗櫒浣滅偤CPU锛屾槸鐩墠涓栫晫涓婂姛鑳芥渶寮峰ぇ鐨勯亱鍕曟帶鍒跺櫒涔嬩竴锛屼竴鍊婸MAC鍙互鍚屾檪鎺у埗1锝�8鏍硅桓锛屽鍊婸MAC绱氳伅(li谩n)鏈€澶氬彲浠ユ帶鍒�128鏍硅桓锛岃兘澶犵簿纰哄畾浣�锛屽湪鍖呰銆佽閰嶃€侀啱(y墨)钘ュ伐妤�(y猫)銆佹搴婄瓑琛屾キ(y猫)鎳�(y墨ng)鐢ㄥ唬娉�銆� 2 澶氬獟楂斿畾鏅傚櫒鎶€琛�(sh霉) 銆€銆€2.1 澶氬獟楂斿畾鏅傚櫒鑸囨櫘閫氬畾鏅傚櫒鐨勬瘮杓� 銆€銆€鏅€氱殑瀹氭檪鍣ㄧ敤鍑芥暩(sh霉)SetTimer渚嗚ō(sh猫)瀹�锛屼互姣鐐哄柈浣�锛屼絾鐢变簬鍙楀埌娑堟伅闅婂垪鐨勮檿鐞嗛€熷害鍜岀郴绲�(t菕ng)鏅傞悩闋荤巼鐨勫奖闊�锛岄噰妯ｅ懆鏈熸渶灏戠偤54.925ms锛屼篃灏辨槸瑾猄etTimer锛�1,1,NULL锛夈€丼etTimer锛�1,50,NULL锛�锛岄噰妯ｇ殑鍛ㄦ湡閮藉ぇ姒傜偤55ms銆備絾浣跨敤Windows鐨勫濯掗珨瀹氭檪鍣ㄤ締浠ｆ浛甯歌(gu墨)鐨勫畾鏅傚櫒锛岄€氶亷绶ㄧ▼鍙互鐛插緱閲囬泦闁撻殧鐐�1ms鎴栨洿鐭�銆佸垎杈ㄧ巼鐐�1µ m鐨勫畾鏅�锛屽畾鏅傜簿搴﹂潪甯搁珮锛屽苟涓旂┅(w臎n)瀹氭€х壒鍒ュソ[1] 銆� 銆€銆€2.3澶氬獟楂斿畾鏅傚櫒鐨勪娇鐢ㄦ柟娉� 銆€銆€鍦ㄤ娇鐢ㄥ濯掗珨瀹氭檪鍣ㄥ墠锛岄渶瑕佺⒑瀹氭搷浣滅郴绲�(t菕ng)澶氬獟楂斿畾鏅傚櫒鐨勫垎杈ㄧ巼鑼冨湇銆傚彲浠ラ€氶亷鍑芥暩(sh霉)timeGetDevCaps渚嗙嵅寰楁湰瑷堢畻姗熺殑澶氬獟楂斿畾鏅傚櫒鍒嗚鲸鐜囪寖鍦�銆備娇鐢ㄥ濯掗珨瀹氭檪鍣紝涓昏鍒嗙偤浠ヤ笅骞炬锛� 銆€銆€1锛夎ō(sh猫)缃濯掗珨瀹氭檪鍣�锛岄噰鐢╰imeSetEvent鍑芥暩(sh霉)锛岃┎鍑芥暩(sh霉)鍙互鍒濆鍖栧濯掗珨瀹氭檪鍣紝纰哄畾閲囬泦鏅傞枔闁撻殧锛屽苟瑷�(sh猫)缃竴鍊嬪畾鏅傚洖瑾�(di脿o)浜嬩欢銆� 銆€銆€2锛夊埄鐢ㄥ嚱鏁�(sh霉)TimeProc瀹氱京鍥炶(di脿o)鍑芥暩(sh霉)锛屽彲浠ュ湪瑭插嚱鏁�(sh霉)涓坊鍔犱唬纰硷紝瀵︾従(xi脿n)鍚勭ó鎿嶄綔銆� 銆€銆€3锛� 瑾�(di脿o)鐢ㄥ嚱鏁�(sh霉)timeKillEvent绲�(ji茅)鏉熷濯掗珨瀹氭檪鍣�銆� 3 鍩轰簬闆欑鍙AM鎶€琛�(sh霉)鐨勬暩(sh霉)鎿�(j霉)瀵︽檪閲囬泦鏂瑰紡 銆€銆€3.1 PMAC鏁�(sh霉)鎿�(j霉)璁€鍙栫殑鏂瑰紡 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RAM鎶€琛�(sh霉)锛屽皪鍦ㄥ熀浜嶱MAC鐨勭郴绲�(t菕ng)閫茶鏁�(sh霉)鎿�(j霉)閲囬泦锛屽畾鏅傜簿搴﹂珮銆侀噰闆嗘檪闁撻枔闅旂煭锛岃兘澶犲湪鈥滃悓涓€鏅傚埢鈥濋噰闆嗗悇绋亱鍕曞弮鏁�(sh霉)锛屾柟渚夸簡鍙冩暩(sh霉)鐨勫皪姣�锛岀啊鍖栦簡鏁�(sh霉)鎿�(j霉)閲囬泦閬庣▼锛岃€屼笖瀹夊叏鎬уソ锛屾槸涓€绋熀浜嶱MAC绯荤当(t菕ng)鐨勬暩(sh霉)鎿�(j霉)閲囬泦鐨勬湁鏁堟柟娉�銆� 鍙冭€冩枃鐛伙細 銆€銆€[1] 渚� 鏄庯紝鐜嬫澅鑸�.WINDOWS 绯荤当(t菕ng)楂樼簿搴﹀畾鏅傛柟娉曠爺绌禰J].銆婂井瑷堢畻姗熶俊鎭€嬶紙绠℃帶涓€楂斿寲锛�.2006锛�3锛夛細262-264. 銆€銆€[2] 鍖椾含鍏冭部(m脿o)鑸堟帶鍒惰ō(sh猫)鍌欐妧琛�(sh霉)鏈夐檺璨�(z茅)浠诲叕鍙�. PMAC鐢ㄦ埗鎵嬪唺[M].1999锛�216-217. 銆€銆€[3] DELTA TAU Data System Inc. PMAC USER鈥橲 MANUAL[M]. USA:DELTA TAU Data System Inc,1999锛�60-64. 銆€銆€[4] 鐢� 瀹�锛岄Μ浼返锛屽嫉閲戞〒. 鍩轰簬PMAC鍗＄殑楂橀€熸暩(sh霉)鎿�(j霉)閲囬泦[J]. 姗熼浕宸ョ▼鎶€琛�(sh霉)锛�2006锛�4锛夛細96-97.