鎽樿 鏈枃浠嬬垂浜嗗鏅傛搷浣滅郴绲�(t菕ng)µC/OS-II鐨勭壒榛�锛岃◣璜栦簡鍏跺湪51绯诲垪鍠墖姗熶笂绉绘鐨勫繀瑕佹€�銆傚苟閬告搰8浣嶅柈鐗囨C8051F120浣滅偤绉绘鐩锛屽垎鏋愪簡µC/OS-II鐨勫叿楂旂Щ妞嶉亷绋�銆傛渶鍚庤ō(sh猫)瑷堜緥绋嬮璀変簡绉绘鐨勬纰烘€�銆� 闂�(gu膩n)閸佃 C8051F120锛�µC/OS-II锛涚Щ妞� [align=center]The Porting of Real-Time Operation System µC/OS-II on C8051F120 Taiyuan University of Technology Tian Juan[/align] Abstract The paper introduces the characteristic of real-time operation system µC/OS-II, and discusses the necessity of porting µC/OS-II on 51 series MCU. Then the specific process of porting µC/OS-II on C8051F120 which is selected as porting target is analyzed. The paper ends with designing test program to prove the success of the porting. 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//鍫嗘＇鐨勫搴︾偤8浣� µC/OS-II鐐轰簡铏曠悊鑷ㄧ晫娈典唬纰�锛岄爤闂�(gu膩n)涓柗锛岃檿鐞嗗畬鐣㈠悗锛屽啀闁嬩腑鏂�銆傛墍浠ュ畾缇�2鍊嬪畯渚嗛棞(gu膩n)涓柗鍜岄枊涓柗锛歄S_ENTER_CRITICAL锛堬級鍜孫S_EXIT_CRITICAL锛堬級銆傞€�2鍊嬪畯鍙互鐢�3绋柟娉曞鐝�(xi脿n)锛屽叿楂旂敤鍝ó鏂规硶锛屽彇姹轰簬浣跨敤鐨勮檿鐞嗗櫒椤炲瀷鍜孋绶ㄨ鍣�銆侰8051F120浣跨敤鏂规硶1渚嗚檿鐞嗚嚚鐣屾锛屽嵆鐩存帴闁嬮棞(gu膩n)涓柗銆傞€欐ǎ瀹氱京鏃㈡笡灏戜簡绋嬪簭琛屾暩(sh霉)锛屽張閬垮厤浜嗛€€鍑鸿嚚鐣屽崁(q奴)鍚庨棞(gu膩n)涓柗閫犳垚鐨勬姗�銆傛牴鎿�(j霉)涓柗鍏佽ū瀵勫瓨鍣� IE鐨勭7浣岴A鐐轰腑鏂峰厑瑷辩附鎺у埗浣�锛孍A=0灞忚斀鎵€鏈変腑鏂凤紝EA=1鍏佽ū鎵€鏈変腑鏂�锛屾墍浠ュ畾缇╄獮鍙ョ偤锛� #define OS_ENTER_CRITICAL锛堬級 EA=0 //闂�(gu膩n)涓柗 #define OS_EXIT_CRITICAL锛堬級 EA=1 //闁嬩腑鏂� C8051F120鍫嗘＇寰炰笅鍚戜笂澧為暦锛�0=鍚戜笂锛�1=鍚戜笅锛�锛岄€氶亷閰嶇疆甯告暩(sh霉)OS_STK_GROWTH鎸囧畾鍫嗘＇鐨勬柟鍚�銆傛墍浠ュ畾缇╄獮鍙ョ偤锛� #define OS_STK_GROWTH 0 //鍫嗘＇寰炰笅鍚戜笂澧為暦锛�1=鍚戜笅澧為暦 µC/OS-II鐨勪换鍕�(w霉)鍒囨彌鏄€氶亷妯′豢涓柗鍕曚綔瀹屾垚鐨�锛屼絾C8051F120娌掓湁杌熶腑鏂锋寚浠�锛屾墍浠ョ敤鍑芥暩(sh霉)瑾�(di脿o)鐢ㄧ殑鏂瑰紡瀵︾従(xi脿n)浠诲嫏(w霉)鍒囨彌锛屽畾缇╄獮鍙ョ偤锛� #define OS_TASK_SW锛堬級 OSCtxSw锛堬級 // OSCtxSw锛堬級鏄敤浜庡鐝�(xi脿n)浠诲嫏(w霉)鍒囨彌鐨勫嚱鏁�(sh霉) 3.2 OS_CPU_C.C OS_CPU_C.C鍖呮嫭10鍊婥鍑芥暩(sh霉)锛歄STaskStkInit锛堬級鍑芥暩(sh霉)鍜�9鍊婬ook鍑芥暩(sh霉)銆侽STaskStkInit锛堬級鍑芥暩(sh霉)鍦ㄤ换鍕�(w霉)鍓�(chu脿ng)寤烘檪琚(di脿o)鐢�锛岀敤渚嗗垵濮嬪寲浠诲嫏(w霉)鍫嗘＇銆侶ook鍑芥暩(sh霉)鐢ㄤ締鎿村睍µC/OS-II鐨勫姛鑳斤紝鍙互涓嶅寘鍚换浣曚唬纰�锛屼絾蹇呴爤鑱叉槑銆傛渶鍚庢坊鍔燭imer0鍒濆鍖栧嚱鏁�(sh霉)锛屽寘鎷伕鎿囧伐浣滄ā寮忥紝瑷�(sh猫)瀹氬垵鍊煎拰浣胯兘涓柗锛屽洜鐐鸿浣跨敤C8051F120鐨凾imer0瀵︾従(xi脿n)鏅傞悩涓柗銆� 鍦ㄤ慨鏀筄STaskStkInit锛堬級鍑芥暩(sh霉)涔嬪墠锛岄渶瑕佸厛鐭ラ亾浠诲嫏(w霉)鍫嗘＇鐨勭祼(ji茅)妲�(g貌u)銆�µC/OS-II鐐烘瘡涓€鍊嬩换鍕�(w霉)閮藉垎閰嶄簡浠诲嫏(w霉)鍫嗘＇锛屼换鍕�(w霉)鍫嗘＇鐢辩郴绲�(t菕ng)鍫嗘＇鍜屼豢鐪熷爢妫у叐閮ㄥ垎绲勬垚銆傜敱浜嶤8051F120瑕佹眰鍫嗘＇瑷�(sh猫)缃湪鐗囧収(n猫i)RAM涓�锛岃€岀墖鍏�(n猫i)RAM绌洪枔鍙堥潪甯告湁闄�锛屽洜姝ゆ墍鏈変换鍕�(w霉)鐨勪换鍕�(w霉)鍫嗘＇瑷�(sh猫)缃湪鐗囧収(n猫i)RAM涓槸骞句箮涓嶅彲鑳界殑銆傚彧鑳芥妸浠诲嫏(w霉)鍫嗘＇瀛樻斁鍦ㄧ墖澶朢AM锛屽苟鍦ㄧ墖鍏�(n猫i)RAM瑷�(sh猫)缃竴鍊嬪叕鍏卞爢妫э紝鍗崇郴绲�(t菕ng)鍫嗘＇锛屾＇搴曞湴鍧€鐐�?STACK銆傚湪浠诲嫏(w霉)鍒囨彌鏅�锛岄渶鍏堜繚瀛樼暥鍓嶄换鍕�(w霉)鍫嗘＇鍏�(n猫i)瀹�锛屽啀鎭㈠京(f霉)鏈€楂樺劒(y艒u)鍏堢礆浠诲嫏(w霉)鍫嗘＇鍏�(n猫i)瀹�锛屽嵆閫茶浠诲嫏(w霉)鍫嗘＇鍜岀郴绲�(t菕ng)鍫嗘＇鐨勫京(f霉)鍒�銆備豢鐪熷爢妫ф槸鐢ㄤ締鐐哄彲閲嶅叆鍑芥暩(sh霉)瀹屾垚鍙冩暩(sh霉)鍌抽仦鍜屽瓨鏀惧眬閮ㄨ畩閲忕殑锛岃ō(sh猫)缃湪鐗囧RAM锛屽闀锋柟鍚戠敱涓婂悜涓嬶紝妫ф寚閲濈偤?C_XBP銆� 鎵€浠�锛屼换鍕�(w霉)鍫嗘＇鍒濆鍖栧彲浠ョ湅浣滄槸鎶婅檿浜庡氨绶掓厠(t脿i)鐨勬渶楂樺劒(y艒u)鍏堢礆浠诲嫏(w霉)鐨勪换鍕�(w霉)鍫嗘＇鍏�(n猫i)瀹瑰京(f霉)鍒跺埌绯荤当(t菕ng)鍫嗘＇鐨勯亷绋�銆傞鍏堣鐛插緱浠诲嫏(w霉)鍫嗘＇鏈€浣庡湴鍧€鍜岄暦搴︼紝鍥犵偤闇€瑕佸緸浠诲嫏(w霉)鍫嗘＇涓仮寰�(f霉)15鍊嬪瘎瀛樺櫒鍏�(n猫i)瀹瑰埌绯荤当(t菕ng)鍫嗘＇锛屾墍浠ュ爢妫ч暦搴︾偤15銆傜劧鍚庡緸涓嬪悜涓婁緷娆″京(f霉)鍒跺瘎瀛樺櫒鍏�(n猫i)瀹�锛屽京(f霉)鍒堕爢搴忔槸锛歅CL锛孭CH锛孭SW锛孉CC锛孊锛孌PL锛孌PH锛孯0锛孯1锛孯2锛孯3锛孯4锛孯5锛孯6锛孯7銆傛渶鍚庝繚瀛樹豢鐪熷爢妫у湴鍧€锛屽苟杩斿洖浠诲嫏(w霉)鍫嗘＇鏈€浣庡湴鍧€銆傞€欐ǎ灏卞畬鎴愪簡浠诲嫏(w霉)鍫嗘＇鍒濆鍖�銆� 3.3 OS_CPU_A.ASM OS_CPU_A.ASM鍖呮嫭4鍊嬪尟绶ㄨ獮瑷€鍑芥暩(sh霉)锛岄€�4鍊嬪嚱鏁�(sh霉)閮芥槸涓嶅彲閲嶅叆鐨�锛屽苟涓斿畾缇╀簡绯荤当(t菕ng)鍫�?锛熻嚮g澶у皬銆� OSStartHighRdy 锛堬級鍑芥暩(sh霉)锛岀敤渚嗕娇灏辩窉鎱�(t脿i)浠诲嫏(w霉)涓劒(y艒u)鍏堢礆鏈€楂樼殑浠诲嫏(w霉)闁嬪閬嬭銆侽SCtxSw锛堬級鍑芥暩(sh霉)锛屽鐝�(xi脿n)CPU姝ｅ父閬嬭鏅備换鍕�(w霉)闁撶殑鍒囨彌,鍗冲皪鐣跺墠浠诲嫏(w霉)鍫嗘＇鐨勪繚瀛樺拰灏嶆渶楂樺劒(y艒u)鍏堢礆浠诲嫏(w霉)鍫嗘＇鐨勫綀鍑�,浣挎渶楂樺劒(y艒u)鍏堢礆浠诲嫏(w霉)鐛插彇CPU鐨勬帶鍒舵瑠(qu谩n)銆侽SIntCtxSw锛堬級鍑芥暩(sh霉)锛屼綔鐢ㄦ槸鍦ㄤ腑鏂锋湇鍕�(w霉)绋嬪簭涓煼(zh铆)琛屼腑鏂风礆鍒ヤ换鍕�(w霉)鍒囨彌銆傚畠鐨勭禃澶у鏁�(sh霉)浠ｇ⒓鍜孫SCtxSw锛堬級鍑芥暩(sh霉)鏄竴妯ｇ殑锛屽崁(q奴)鍒ュ湪浜庝腑鏂锋湇鍕�(w霉)鍑芥暩(sh霉)宸茬稉(j墨ng)淇濆瓨浜嗗瘎瀛樺櫒鍏�(n猫i)瀹�锛屽墖涓嶉渶瑕佸啀鍦∣SIntCtxSw锛堬級鍑芥暩(sh霉)涓繚瀛樸€侽STickISR锛堬級鍑芥暩(sh霉)锛屾槸绯荤当(t菕ng)鏅傞悩鐨勪腑鏂锋湇鍕�(w霉)绋嬪簭锛屼富瑕佸姛鑳芥槸妾㈡煡鏄惁鏈夌敱浜庡欢鏅傝€岃鎺涜捣鐨勪换鍕�(w霉)鎴愮偤灏辩窉浠诲嫏(w霉)銆傚鏋滄湁锛屽氨瑾�(di脿o)鐢∣SIntCtxSw锛堬級鍑芥暩(sh霉)閫茶浠诲嫏(w霉)鍒囨彌锛屽緸鑰岄亱琛屾渶楂樺劒(y艒u)鍏堢礆浠诲嫏(w霉)銆傚洜鐐�µC/OS-II鍦ㄦ瘡涓€鍊嬬瘈(ji茅)鎷嶉兘瑕佹鏌ユ湁娌掓湁鏇撮珮鍎�(y艒u)鍏堢礆鐨勪换鍕�(w霉)鍦ㄧ瓑寰呭煼(zh铆)琛�锛屽鏋滄湁,灏辫閫茶浠诲嫏(w霉)鍒囨彌銆傛墍浠�锛屾檪閻樼瘈(ji茅)鎷嶇巼瓒婇珮锛岀郴绲�(t菕ng)鐨勯澶栬矤鑽峰氨瓒婇噸銆� 4 绯荤当(t菕ng)娓│ 鎸夌収涓婅堪绉绘姝ラ锛屼綔鑰呭湪Keil绶ㄨ鐠�(hu谩n)澧冧笅瀵︾従(xi脿n)浜�µC/OS-II鍦–8051F120涓婄殑鍏烽珨绉绘銆傜偤浜嗛槻姝㈠湪绶ㄨ鏅傚嚭鐝�(xi脿n)娈甸亷澶х殑閷锛岄渶瑕侀伕鎿囧収(n猫i)瀛樻ā寮忕偤澶фā寮�锛屽苟鐩告噳(y墨ng)鐨勫湪STARTUP.A51 鏂囦欢涓ō(sh猫)缃甔BPSTACK=1銆傚壍(chu脿ng)寤�2鍊嬩换鍕�(w霉)渚嗛璀�µC/OS-II绉绘鐨勬垚鍔燂細 OSTaskCreate 锛圱askLed, 锛坴oid 锛婏級0, TaskStartStkLed,2锛�; OSTaskCreate 锛圱askSmg, 锛坴oid 锛婏級0, TaskStartStkSmg,3锛�; 绋嬪簭娴佺▼鍦栧鍦�1鎵€绀�銆備换鍕�(w霉)TaskLed闁冪垗1娆″悗锛屽悜浠诲嫏(w霉)TaskSmg鐧�(f膩)閫佹秷鎭苟绛夊緟鍥炲京(f霉)锛屼换鍕�(w霉)TaskSmg寰楀埌娑堟伅鍚庨’绀洪杻鐖嶆鏁�(sh霉)锛屽苟閫茶鍥炲京(f霉)銆傛渶绲傛晥鏋滅偤P4.0閫ｆ帴鐨凩ED闁冪垗1娆�锛屽墖P5鍙ｉ€ｆ帴鐨勬暩(sh霉)纰肩椤ず鏁�(sh霉)瀛楀姞1锛屾渶澶ч’绀虹偤9锛屼箣鍚庤嚜鍕曟竻闆躲€傜稉(j墨ng)閬�4灏忔檪鐨勯€ｇ簩(x霉)瀵﹂锛屼竴鍒囬亱琛屾甯�锛岄€欏氨椹楄瓑浜嗙Щ妞嶄唬纰肩殑姝ｇ⒑鎬�銆� [align=center] 鍦�1 绋嬪簭娴佺▼鍦朳/align] 闇€瑕佹敞鎰忕殑鏄紝C8051F120鐨勪娇鐢ㄦ秹鍙婂埌SFRPAGR鐨勪繚璀�锛屽洜鐐篊8051F120鎿佹湁澶鐨勬ā鎿拰鏁�(sh霉)瀛楄硣婧�锛屽畠鍊戦兘闇€瑕佺浉鎳�(y墨ng)鐨凷FR鎺у埗锛岃€屾婧�8051淇濈暀鐨凷FR绌洪枔涓嶈兘婊胯冻鎵€闇€鐨凷FR瀵勫瓨鍣�锛屾墍浠8051F120鍙﹀瀹夋帓浜哠FRPAGE渚嗘摯灞曟洿澶氱殑SFR瀵勫瓨鍣ㄧ┖闁�銆傚悓涓€鍊婼FR鍦板潃閰嶅悎涓嶅悓鐨凷FRPAGE鍊�锛屾帶鍒朵笉鍚岀殑璩囨簮銆備絾濡傛灉鏄潪涓柗鎯呮硜涓嬬櫦(f膩)鐢熶换鍕�(w霉)鍒囨彌锛屽苟涓斿湪鏂颁换鍕�(w霉)涓敼璁婁簡SFRPAGE锛岄偅涔堝洖鍒颁互鍓嶇殑浠诲嫏(w霉)鍚庡緢鍙兘SFRPAGE宸茬稉(j墨ng)鏀硅畩锛屽緸鑰岀劇娉曟帶鍒舵纰虹殑璩囨簮锛岄倓鏈夊彲鑳戒娇绋嬪簭璺戦銆傚洜鐐轰笉鍚岀殑璩囨簮寰€寰€闇€瑕佷笉鍚岀殑SFRPAGE锛岀偤浜嗚В姹洪€欎竴鍟忛锛屽湪鎵€鏈夊嚭鐝�(xi脿n)SFRPAGE璩﹀€肩殑鍦版柟閮芥噳(y墨ng)鐣朵綔鑷ㄧ晫浠ｇ⒓淇濊璧蜂締锛岄€欐ǎ灏卞彲浠ュ畬鍏ㄩ伩鍏嶅洜SFRPAGE鍊肩殑閷鑰屽紩鍑虹殑鍟忛[6]銆� 5 绲�(ji茅)璜� µC/OS-II鏄竴绋鏅傛€уソ銆佷唬纰奸噺灏忕殑澶氫换鍕�(w霉)瀵︽檪鎿嶄綔绯荤当(t菕ng)锛屽叿鏈夊緢濂界殑绌�(w臎n)瀹氭€ц垏鍙潬鎬�锛屽彲寤ｆ硾绉绘鍒颁笉鍚屾(g貌u)鏋剁殑寰檿鐞嗗櫒涓�銆傛湰鏂囧畬鏁寸殑闂¤堪浜�µC/OS-II鐨勭Щ妞嶉亷绋�锛屽苟鍦–8051F120涓婂鐝�(xi脿n)浜嗛洐浠诲嫏(w霉)鍚屾閫氫俊銆傝珫鏂囧皪51绯诲垪鍠墖姗熺殑µC/OS-II绉绘鍏锋湁鏅亶鐨勬寚灏�(d菐o)鎰忕京銆�