銆�銆�浠嬬垂
銆�銆�鍦ㄥ祵鍏ュ紡寰帶鍒跺櫒鎳�(y墨ng)鐢ㄤ腑,閫氬父閮借鐢ㄥ埌闈炴槗澶辨�у瓨鍎�(ch菙)鍣�.鐒�(w煤)璜栨槸鎺夐浕鏅�(sh铆)缍寔闇�瑕佷繚瀛樼殑瑷�(sh猫)缃�,閭勬槸瀛樺劜(ch菙)鍏徃鐨勯噸瑕佽閷�,鍙潬鐨勯潪鏄撳け鎬у瓨鍎�(ch菙)鍣ㄩ兘鏄従(xi脿n)浠ｅ井鎺у埗鍣ㄩ牁(l菒ng)鍩熺殑涓�鍊�(g猫)鍩烘湰鍠厓銆�
銆�銆�闈炴槗澶辨�у瓨鍎�(ch菙)甯稿父閲囩敤澶栭儴涓茶瀛樺劜(ch菙)鍣ㄥ(sh铆)鐝�(xi脿n).澶氬勾浠ヤ締(l谩i),瑭查牁(l菒ng)鍩熺敤鍒颁簡鏁�(sh霉)鍗佸剟椤嗛(l猫i)浼煎瓨鍎�(ch菙)鍣ㄤ欢,瀹冨�戠殑鍙潬鎬у緱鍒颁簡鐨勫唬娉涜獚(r猫n)鍙�.鐩墠,瀛樺劜(ch菙)鍣ㄥ彲浠ュ仛鍒板咕鐧惧瓧绡�(ji茅)鍒�1鍏嗗瓧绡�(ji茅)鐢氳嚦鏇村ぇ鐨勫閲�,鍦ㄦ瘡涓�鍊�(g猫)闇�瑕佷繚鎸佽ō(sh猫)缃殑瑷�(sh猫)鍌欎腑,閮借兘鎵惧埌閫欐ǎ涓�鍊�(g猫)绶婃箠銆佸粔鍍�(ji脿)鐨勫櫒浠�銆�
銆�銆�鍖呮嫭EEPROM銆侀杻瀛樺拰鏃嬭綁(zhu菐n)寮忓瓨鍎�(ch菙)鍣ㄥ湪鍏�(n猫i),鎵�鏈夐(l猫i)鍨嬬殑闈炴槗澶辨�у瓨鍎�(ch菙)鍣ㄩ兘闈㈣嚚涓�鍊�(g猫)鍏卞悓鐨勫晱(w猫n)椤�:瀵�(xi臎)鍛ㄦ湡琚腑鏂锋檪(sh铆),鏁�(sh霉)鎿�(j霉)鏈�(hu矛)涓熷け.涓�鏃﹀湪瀵�(xi臎)鍛ㄦ湡鍩�(zh铆)琛岄亷(gu貌)绋嬩腑鎺夐浕,閭ｄ箞鍗充娇鍐嶆仮寰�(f霉)闆绘簮,涔熷緢闆ｄ慨寰�(f霉)鎼嶅鐨勬暩(sh霉)鎿�(j霉). 鏈枃鎻愬嚭浜嗕竴绋熀浜庝簨鍕�(w霉)鐨勬彁浜�-鍥為��姗�(j墨)鍒�,鐢ㄤ簬淇濊(h霉)涓�鍊�(g猫)澶栭儴涓茶EEPROM瀛樺劜(ch菙)鍣ㄤ欢鐨勫収(n猫i)瀹�.閫欎簺鎺柦鍚屾ǎ閬╃敤浜庡ぇ澶氭暩(sh霉)MAXQ寰帶鍒跺櫒鐨勫収(n猫i)缃瓻EPROM.鍙互涓嬭級鏈噳(y墨ng)鐢ㄧ殑浠ｇ⒓鏂囦欢(ZIP,20.5kb)銆�
銆�銆�I2C EEPROM鐨勭壒榛�(di菐n)
銆�銆�涓茶瀛樺劜(ch菙)鍣ㄤ欢鏈夊绋帴鍙�,浣嗘渶甯哥敤鐨勬帴鍙ｆ槸I2C鎺ュ彛.閫欑ó绺界窔鎺ュ彛鏈夊緢澶氬劒(y艒u)榛�(di菐n):楂樺害妯�(bi膩o)婧�(zh菙n)鍖栫殑鎺ュ彛;鎺у埗鍣ㄥ拰瀛樺劜(ch菙)鍣ㄤ箣闁撳彧闇�鍏╂绶�;鑰屼笖鍏锋湁闈堟椿鐨勬檪(sh铆)搴忚姹�,鍙互鐢辫粺浠堕﹨(q奴)鍕�(d貌ng).涓�鍊�(g猫)I2C涓绘(j墨)鍙互椹�(q奴)鍕�(d貌ng)寰堝I2C寰炴(j墨),寰炶�屾笡灏戜簡涓绘(j墨)鐨勫紩鑵虫暩(sh霉)銆�
銆�銆�鍦ㄦ墍鏈塃EPROM鍣ㄤ欢涓�,瀵�(xi臎)鍛ㄦ湡閮借姣旇畝鍛ㄦ湡闀�(zh菐ng)鐨勫.鍥�?y脿n)妯佃动?xi臎)鍛ㄦ湡閬�(gu貌)绋嬩腑,闆昏嵎闇�瑕佸�熷姪闅ч亾鏁堟噳(y墨ng)骞堕�氶亷(gu貌)绲曠罚灞ら��(j矛n)琛岃綁(zhu菐n)绉�,鑰岄�欏��(g猫)閬�(gu貌)绋嬪緢璨�(f猫i)鏅�(sh铆)闁�.闆栫劧澧炲姞闆诲鍙互鍔犲揩閫欏��(g猫)閬�(gu貌)绋�,浣嗘槸閬�(gu貌)楂樼殑闆诲鏈�(hu矛)灏�(d菐o)鑷寸禃绶ｅ堡鐨勪粙璩�(zh矛)鎿婄┛,寰炶�屾悕澹炲櫒浠�.鍏稿瀷鐨凟EPROM鍣ㄤ欢瀵�(xi臎)鍛ㄦ湡鎸佺簩(x霉)10姣宸﹀彸;鑰岃畝鍛ㄦ湡閫氬父闇�瑕佸咕鐧惧��(g猫)绱嶇銆�
銆�銆�鐐轰簡椤憲绺煭瀵�(xi臎)鍛ㄦ湡鐨勬檪(sh铆)闁�,瑷卞I2C EEPROM鍣ㄤ欢閲囩敤闋�(y猫)闈㈡ā寮�.瑭叉ā寮忓厑瑷卞皣澶氬��(g猫)瀛楃瘈(ji茅)鍌抽�佸埌绶╁瓨涓�,鐒跺悗灏囨暩(sh霉)鎿�(j霉)涓�娆℃�у(xi臎)鍏ュ瓨鍎�(ch菙)鍗�(q奴).I2C瀛樺劜(ch菙)鍣ㄤ欢鐨勫吀鍨嬮爜(y猫)闈㈠昂瀵哥偤32瀛楃瘈(ji茅).鍥犳,鍙互鍦ㄤ竴鍊�(g猫)瀵�(xi臎)鍛ㄦ湡鍏�(n猫i)鍚慐EPROM濉叆32鍊�(g猫)瀛楃瘈(ji茅)銆�
銆�銆�閫欎竴榛�(di菐n)闈炲父閲嶈,鍥�?y脿n)姒囶啩锠〦PROM鍣ㄤ欢閮藉叿鏈夌壒瀹氱殑鑰愪箙搴�:鍗虫瘡鍊�(g猫)闋�(y猫)闈㈡墍鑳芥壙鍙楃殑瀵�(xi臎)鍛ㄦ湡娆℃暩(sh霉)涓婇檺.鍏稿瀷鐨勫(xi臎)鍛ㄦ湡娆℃暩(sh霉)寰�10,000鍒�1,000,000娆�.鐒惰��,鍗充娇瀛樺劜(ch菙)鍣ㄤ欢鑳藉鎵垮彈1鐧捐惉(w脿n)娆″(xi臎)鍛ㄦ湡,杌熶欢涔熸渻(hu矛)寰堝揩灏囧叾鎼嶈�楁畣鐩�.杌熶欢姣忕鍍呭煼(zh铆)琛�100娆″(xi臎)鍛ㄦ湡,閭ｄ箞涓嶅埌3鍊�(g猫)灏忔檪(sh铆)灏辨渻(hu矛)鑰楃洝鍣ㄤ欢鐨勫(xi臎)鍛ㄦ湡娆℃暩(sh霉)銆�
銆�銆�鑰冩叜鍒伴�欎簺鍩烘湰鐨凟EPROM鐗规��,瑷�(sh猫)瑷�(j矛)鑰呯偤涓�鍊�(g猫)宓屽叆寮忚檿鐞嗗櫒瑷�(sh猫)瑷�(j矛)鍙潬鐨勯潪鏄撳け瀛樺劜(ch菙)绯荤当(t菕ng)鏅�(sh铆),闇�鍒囪浠ヤ笅骞鹃粸(di菐n):
銆�銆�涓嶈鍦ㄥ悓涓�闋�(y猫)闈笂鍙嶅京(f霉)鍩�(zh铆)琛屽(xi臎)鎿嶄綔.灏ゅ叾鏄笉瑕佸皣鏌愬��(g猫)闋�(y猫)闈㈣ō(sh猫)缃垚瀵�(xi臎)鍏ヤ换浣曞叾瀹冮爜(y猫)闈㈡檪(sh铆)閮借鏇存柊鐨�"鐩寗"銆�
銆�銆�濡傛灉鍦ㄥ(xi臎)鍛ㄦ湡閬�(gu貌)绋嬩腑闆绘簮琚腑鏂�,蹇呴爤鎻愪緵浠ヤ笅姗�(j墨)鍒�:(1) 妾㈡脯(c猫)琚腑鏂风殑瀵�(xi臎)鎿嶄綔;(2) 瀹屾垚琚腑鏂风殑鎿嶄綔;(3) 鎴栬�呭皣浜嬩欢鍥為��鑷冲(xi臎)鎿嶄綔涔嬪墠鐨勭媭鎱�(t脿i)銆�
銆�銆�蹇呴爤閫氶亷(gu貌)鏌愪簺鏁�(sh霉)鎿�(j霉)鏍￠(y脿n)姗�(j墨)鍒�(鏍￠(y脿n)鍜�銆丆RC鎴栨秷鎭憳瑕�)渚�(l谩i)淇濊瓑鏁�(sh霉)鎿�(j霉)鐨勫畬鏁存��銆�
銆�銆�瑷�(sh猫)瑷�(j矛)鐩(bi膩o)
銆�銆�闆栫劧涓婇潰鎻愬埌鐨凟EPROM鍟�(w猫n)椤屽彲閫氶亷(gu貌)澶氱ó闈炴槗澶辨枃浠剁郴绲�(t菕ng)鍔犱互瑙ｆ焙,浣嗛�欐ǎ鐨勬枃浠舵(j墨)鍒跺皪(du矛)浜庡皬鍨嬪祵鍏ュ紡寰帶鍒跺櫒渚�(l谩i)瑾�(shu艒)璨�(f霉)鎿�(d膩n)閬�(gu貌)閲�.寰堝鏂囦欢绯荤当(t菕ng)闇�瑕佹洿澶氱殑RAM,閬�(yu菐n)閬�(yu菐n)瓒呭嚭浜嗗皬鍨嬪井鎺у埗鍣ㄦ墍鑳芥彁渚涚殑瀹归噺,鑰屼笖灏�(du矛)浜庡鏁�(sh霉)鎳�(y墨ng)鐢�,涔熶笉闇�瑕佷竴鍊�(g猫)瀹屾暣鐨勬枃浠剁郴绲�(t菕ng)銆�
銆�銆�鑰冩叜鍒伴�欎竴榛�(di菐n),涓嬮潰鍒楀嚭浜咵EPROM鏁�(sh霉)鎿�(j霉)淇濊(h霉)姗�(j墨)鍒剁殑瑷�(sh猫)瑷�(j矛)鐩(bi膩o):
銆�銆�绮剧啊(ji菐n):淇濊(h霉)姗�(j墨)鍒剁敤浜庡瓨鍎�(ch菙)鏍￠(y脿n)鏁�(sh霉)鎿�(j霉)鐨勭┖闁撲笉鎳�(y墨ng)瓒呴亷(gu貌)EEPROM鐨�10[%],瀹冩噳(y墨ng)瑭插彧闇�瑕佸皯閲忕殑瑷�(j矛)绠楅枊(k膩i)閵�(xi膩o)銆�
銆�銆�濉婂ぇ灏�:琚繚璀�(h霉)鐨勫澶у皬,鎳�(y墨ng)瑭插拰EEPROM鐨勫(xi臎)鎿嶄綔闋�(y猫)闈㈠ぇ灏忎竴妯�.鐢变簬EEPROM鍣ㄤ欢鐨勯爜(y猫)闈㈠ぇ灏忛�氬父鏄�2鐨勫伓鏁�(sh霉)娆″啰,鍥犳鑸囨瘡鍊�(g猫)濉婁繚鐣�1鎴�2鍊�(g猫)瀛楃瘈(ji茅)鐨勫仛娉曠浉姣�,鐩稿悓鐨勫昂瀵稿ぇ灏忔洿渚夸簬杌熶欢绶ㄧ⒓銆�
銆�銆�鑰愪箙鎬�:姣忓��(g猫)淇濊(h霉)鍛ㄦ湡涓嶈灏�(du矛)鍚屼竴闋�(y猫)闈㈤��(j矛n)琛屽(xi臎)鎿嶄綔銆�
銆�銆�鍙潬鎬�:姣忔鎺夐浕鎯呮硜涓�,鏁�(sh霉)鎿�(j霉)閮芥噳(y墨ng)鏄彲鎭㈠京(f霉)鐨�銆�
銆�銆�閫欓噷鎻愬埌鐨勪繚璀�(h霉)姗�(j墨)鍒舵湁6鍊�(g猫)鎺ュ彛鍑芥暩(sh霉):璁�銆佸(xi臎)銆佹彁浜ゃ�佸洖閫�銆佹鏌ュ拰娓呯悊銆�
銆�銆�璁�鍑芥暩(sh霉)鎺ユ敹涓�鍊�(g猫)濉婄法铏�(h脿o)鍜屼竴鍊�(g猫)鎸囧悜32瀛楃瘈(ji茅)绶╁瓨鐨勬寚閲�.濡傛灉绶╁瓨鍦板潃鍜屽绶ㄨ櫉(h脿o)铏曚簬鏈夋晥鑼冨湇鍏�(n猫i),绋嬪簭灏辨渻(hu矛)灏囨寚瀹氱殑濉婃暩(sh霉)鎿�(j霉)璁�鍏ョ珐瀛�,骞舵牎椹�(y脿n)鏁�(sh霉)鎿�(j霉)鐨勬湁鏁堟��.瀹冩渻(hu矛)杩斿洖濡備笅?t墨ng)椤烞(t脿i):鏈夋晥璁�(valid read)銆佺劇(w煤)鏁堣畝(invalid read)銆佺劇(w煤)鏁堢珐瀛樺湴鍧�(invalid buffer address)銆佺劇(w煤)鏁堥爜(y猫)闈㈢法铏�(h脿o)(invalid page number)鎴栦繚璀�(h霉)澶辨晽(protectiON failure)銆�
銆�銆�瀵�(xi臎)鍑芥暩(sh霉)鎺ユ敹涓�鍊�(g猫)濉婄法铏�(h脿o)鍜屼竴鍊�(g猫)鎸囧悜濉ソ鏁�(sh霉)鎿�(j霉)鐨�32瀛楃瘈(ji茅)绶╁瓨鐨勬寚閲�.濡傛灉绶╁瓨鍦板潃鍜屽绶ㄨ櫉(h脿o)铏曚簬鏈夋晥鑼冨湇鍏�(n猫i),绋嬪簭灏辨渻(hu矛)灏囨暩(sh霉)鎿�(j霉)瀵�(xi臎)鍏ラ潪鏄撳け鎬х珐瀛�,骞舵(bi膩o)瑷樼珐瀛樼媭鎱�(t脿i)浠ユ簴(zh菙n)鍌欐彁浜�銆�
銆�銆�鎻愪氦鍜屽洖閫�鍑芥暩(sh霉),鏄彲浠ュ湪瀵�(xi臎)鎿嶄綔涔嬪悗鍩�(zh铆)琛岀殑浜掕(b菙)鍨嬫搷浣�.鎻愪氦鍑芥暩(sh霉)灏囨渶杩戣瀵�(xi臎)鍏ョ殑绶╁瓨鏁�(sh霉)鎿�(j霉)寰�(f霉)鍒跺埌灏�(du矛)鎳�(y墨ng)鐨勫瓨鍎�(ch菙)鍗�(q奴)鏈�绲備綅缃�,骞剁偤涓嬩竴鍊�(g猫)寰呭(xi臎)鍏ョ殑鏁�(sh霉)鎿�(j霉)濉婃簴(zh菙n)鍌欏ソ绶╁瓨绲�(ji茅)妲�(g貌u).鍥為��鍑芥暩(sh霉)瀵�(sh铆)闅涗笂灏辨槸涓�鍊�(g猫)"鍙栨秷"鎿嶄綔.瀹冩秷闄ゆ渶杩戜竴娆″(xi臎)鎿嶄綔鐢�(ch菐n)鐢熺殑鏁堟灉,骞剁偤涓嬩竴鍊�(g猫)瀵�(xi臎)鎿嶄綔婧�(zh菙n)鍌欏ソ绶╁瓨瀛愮郴绲�(t菕ng). 妾㈡煡鍑芥暩(sh霉)璁�鍙栧瓨鍎�(ch菙)鍣ㄤ欢鐨勬瘡鍊�(g猫)鏁�(sh霉)鎿�(j霉)濉�,骞舵鏌ュ瓨鍎�(ch菙)鏁�(sh霉)鎿�(j霉)鐨勬湁鏁堟��.瑭插嚱鏁�(sh霉)閭勬鏌ョ珐瀛樺瓙绯荤当(t菕ng),浠ョ⒑淇濇矑(m茅i)鏈夋湭鍩�(zh铆)琛岀殑瀵�(xi臎)鎿嶄綔.浠讳綍鐒�(w煤)鏁堝鎴栨湭鍩�(zh铆)琛岀殑瀵�(xi臎)鎿嶄綔閮芥渻(hu矛)浣挎鏌ュ嚱鏁�(sh霉)杩斿洖涓�鍊�(g猫)閷�(cu貌)瑾ょ媭鎱�(t脿i)銆�
銆�銆�娓呯悊鍑芥暩(sh霉)淇京(f霉)涓�鍊�(g猫)鏁�(sh霉)鎿�(j霉)鎼嶅鐨凟EPROM.瀵�(sh铆)闅涗笂,瀹冨皣瑭﹀湒鎵惧嚭鐧�(f膩)鐢熺殑閷�(cu貌)瑾�,骞堕噰鍙栫浉鎳�(y墨ng)鐨勮В姹烘帾鏂姐��
銆�銆�闂�(gu膩n)浜庨�欎簺鍑芥暩(sh霉)鐨勬洿澶氱窗(x矛)绡�(ji茅),鍙冭(ji脿n)涓嬮潰鐨勬搷浣滆┏瑙�銆�
銆�銆�鍦�1. EEPROM瀛樺劜(ch菙)鍣ㄧ殑绲�(ji茅)妲�(g貌u).瀛樺劜(ch菙)鍣ㄨ鍔冨垎鐐�3鍊�(g猫)鍗�(q奴)鍩�:涓诲瓨鍎�(ch菙)鍗�(q奴),鍖呭惈瀵�(sh铆)闅涚敤鎴�(h霉)鏁�(sh霉)鎿�(j霉);鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴),鍖呭惈涓诲瓨鍎�(ch菙)鍗�(q奴)姣�1闋�(y猫)鐨凜RC;绶╁瓨,鍖呭惈瀛樺劜(ch菙)鑷ㄦ檪(sh铆)瀵�(xi臎)鍏ユ暩(sh霉)鎿�(j霉)鐨勫洓鍊�(g猫)绶╁瓨銆�
銆�銆�EEPROM绲�(ji茅)妲�(g貌u)
銆�銆�鍙冭�冧笂闈㈠湒1绲﹀嚭鐨凟EPROM绲�(ji茅)妲�(g貌u).EEPROM鍖呭惈涓夊��(g猫)涓昏鍗�(q奴)鍩�:
銆�銆�涓诲瓨鍎�(ch菙)鍗�(q奴):EEPROM鐨勫崁(q奴)鍩熺敤浜庡瓨鍎�(ch菙)鐢ㄦ埗(h霉)鏁�(sh霉)鎿�(j霉).鍦ㄤ竴鍊�(g猫)16kB鍣ㄤ欢鍏�(n猫i),鍖呮嫭512闋�(y猫)銆佹瘡闋�(y猫)32瀛楃瘈(ji茅)鐨勫瓨鍎�(ch菙)绌洪枔.鍦ㄩ�欐ǎ鐨勫櫒浠朵腑,闁�(k膩i)濮嬬殑473鍊�(g猫)闋�(y猫)闈㈠皥(zhu膩n)闁�(m茅n)鐢ㄤ締(l谩i)瀛樺劜(ch菙)鏁�(sh霉)鎿�(j霉)銆�
銆�銆�鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴):EEPROM鐨勭浜屽��(g猫)閮ㄥ垎,鐢ㄤ簬鏍￠(y脿n)涓诲瓨鍎�(ch菙)鍗�(q奴)姣忓��(g猫)闋�(y猫)闈㈢殑鏁�(sh霉)鎿�(j霉).鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨勬瘡1闋�(y猫)閮藉寘鍚�15鍊�(g猫)16浣嶇殑CRC鍊�.姣�1闋�(y猫)鐨�1鍊�(g猫)CRC鐢ㄤ簬鏍￠(y脿n)鏈爜(y猫)鏁�(sh霉)鎿�(j霉).鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鍗犵敤31闋�(y猫)(寰�473鍒�503闋�(y猫))銆�
銆�銆�绶╁瓨:EEPROM鐨勯儴鍒�,鍖呭惈鐢�8鍊�(g猫)闋�(y猫)闈㈡(g貌u)鎴愮殑4鍊�(g猫)瀵�(xi臎)绶╁瓨.姣忓��(g猫)绶╁瓨鍖呭惈4鍊�(g猫)鍩�:鏁�(sh霉)鎿�(j霉)鍩�,瀹冨寘鍚�32瀛楃瘈(ji茅)鏁�(sh霉)鎿�(j霉),鍩�(zh铆)琛屼笅涓�鍊�(g猫)鎻愪氦鍛戒护鏅�(sh铆),鏁�(sh霉)鎿�(j霉)灏囪瀵�(xi臎)鍏ヤ富瀛樺劜(ch菙)鍗�(q奴);鍦板潃鍩�,瀹冭〃绀虹珐瀛樻暩(sh霉)鎿�(j霉)瑕佸(xi臎)鍏ョ殑闋�(y猫)闈㈠湴鍧�;鐙�鎱�(t脿i)鍩�,瀹冭〃绀虹珐瀛樼殑鐙�鎱�(t脿i)(鍖呮嫭鍙敤(available)銆佸崰鐢�(occupied)鍜岀祩姝�(expired)鐙�鎱�(t脿i));16浣岰RC鍩�,鐢ㄤ締(l谩i)鏍￠(y脿n)鏁村��(g猫)瀵�(xi臎)绶╁瓨.绶╁瓨绲�(ji茅)妲�(g貌u)瑕�(ji脿n)鍦�1鎵�绀恒��
銆�銆�閫欑óEEPROM绲�(ji茅)妲�(g貌u)鍙互瀵�(sh铆)鐝�(xi脿n)涓昏鐨勮ō(sh猫)瑷�(j矛)鐩(bi膩o).棣栧厛,鐢变簬涓诲瓨鍎�(ch菙)鍗�(q奴)姣�1闋�(y猫)鏁�(sh霉)鎿�(j霉)鐨勬牎椹�(y脿n)绲�(ji茅)鏋滈兘瀛樺劜(ch菙)鍦ㄥ彟涓�鍊�(g猫)浣嶇疆,鎵�浠ラ爜(y猫)闈㈢殑鎵�鏈変綅閮界敤浜庡瓨鍎�(ch菙)鐢ㄦ埗(h霉)鏁�(sh霉)鎿�(j霉).鍏舵,鐢变簬涓诲瓨鍎�(ch菙)鍗�(q奴)鐨勬瘡1闋�(y猫)閮介�氶亷(gu貌)鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨勭壒瀹氬瓧渚�(l谩i)鏍￠(y脿n),鍥犳鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)涓嶆渻(hu矛)鏈夊柈榛�(di菐n)閷�(cu貌)瑾�,骞朵笖涔熶笉鏈�(hu矛)鍦ㄦ瘡鍊�(g猫)瀵�(xi臎)鍛ㄦ湡涓兘鍘绘洿鏂版暣鍊�(g猫)鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨勫悓涓�闋�(y猫)闈�.,浣跨敤4鍊�(g猫)瀵�(xi臎)绶╁瓨鍒嗘暎浜嗗(xi臎)鍛ㄦ湡甯朵締(l谩i)鐨勬悕鑰�銆�
銆�銆�鎿嶄綔瑭宠В
銆�銆�灏�(du矛)浜庝竴鍊�(g猫)涓嶅付淇濊(h霉)鍔熻兘鐨凟EPROM,鍏烽珨鎿嶄綔闈炲父绨�(ji菐n)鍠�.涓�鍊�(g猫)璁�鍛ㄦ湡绨�(ji菐n)鍠湴灏囧瓧绡�(ji茅)寰炴墍閬告搰鐨勫湴鍧�鍌抽�佺郸涓绘(j墨);涓�鍊�(g猫)瀵�(xi臎)鍛ㄦ湡灏囧瓧绡�(ji茅)寰炰富姗�(j墨)瀵�(xi臎)鍏EPROM,骞剁瓑寰呮搷浣滃畬鎴�(澶у鏁�(sh霉)鍣ㄤ欢闇�瑕佸咕鍊�(g猫)姣鐨勬檪(sh铆)闁�).鐒惰��,鍦ㄤ竴鍊�(g猫)鎻愪緵淇濊(h霉)鐨凟EPROM鐠�(hu谩n)澧冧笅,璁�鍜屽(xi臎)鎿嶄綔灏辨瘮杓冨京(f霉)闆滀簡.鍦ㄤ互涓嬪悇绡�(ji茅)涓�,灏�(du矛)姣忓��(g猫)鎿嶄綔閫�(j矛n)琛屼簡鍒嗚В,浠ヤ究浜嗚В鍑芥暩(sh霉)琚(di脿o)鐢ㄦ檪(sh铆)鍒板簳鏄浣曟搷浣滅殑銆�
銆�銆�璁�鎿嶄綔
銆�銆�鍦�2. 璁�鎿嶄綔鐨勬祦绋嬪湒
銆�銆�璁�鎿嶄綔閫欏��(g猫)鏈�绨�(ji菐n)鍠殑鎺ュ彛鍑芥暩(sh霉),涔熸槸鐩哥暥(d膩ng)寰�(f霉)闆滅殑.鍦�2绲﹀嚭浜嗘搷浣滄祦绋�:
銆�銆�妾㈡煡闋�(y猫)闈㈠湴鍧�鍜岀珐瀛樺湴鍧�,浠ユ椹�(y脿n)瀹冨�戠殑鏈夋晥鎬�.濡傛灉鍦板潃鐒�(w煤)鏁�,鍓囧氨姝ょ祼(ji茅)鏉熸搷浣�,鍑芥暩(sh霉)杩斿洖涓�鍊�(g猫)鐒�(w煤)鏁堢珐瀛樺湴鍧�鎴栫劇(w煤)鏁堥爜(y猫)闈㈢法铏�(h脿o)閷�(cu貌)瑾や唬纰�銆�
銆�銆�灏囨墍閬搁爜(y猫)闈㈣畝鍏ョ珐瀛�銆�
銆�銆�瑷�(j矛)绠楁牎椹�(y脿n)闋�(y猫)闈㈢殑鍦板潃,骞跺皣鐩告噳(y墨ng)鐨勬牎椹�(y脿n)闋�(y猫)闈㈣畝鍏ユ毇瀛樺崁(q奴)銆�
銆�銆�瑷�(j矛)绠楁牎椹�(y脿n)闋�(y猫)闈㈢殑CRC.濡傛灉鏍￠(y脿n)闋�(y猫)闈㈢殑鏁�(sh霉)鎿�(j霉)鐒�(w煤)鏁�,鍓囪繑鍥炰竴鍊�(g猫)淇濊(h霉)澶辨晽閷�(cu貌)瑾や唬纰�銆�
銆�銆�瑷�(j矛)绠楁暩(sh霉)鎿�(j霉)绶╁瓨鐨凜RC,骞跺皣鍏惰垏鏆瓨鍗�(q奴)涓皪(du矛)鎳�(y墨ng)璁�鍙栭爜(y猫)闈㈢殑CRC閫�(j矛n)琛屾瘮杓�.濡傛灉CRC鍖归厤,鍓囩▼搴忚繑鍥炴湁鏁堣畝浠ｇ⒓;濡傛灉CRC涓嶅尮閰�,鍓囩▼搴忚繑鍥�?z茅)o鏁堣畝浠ｇ⒓.鐒�(w煤)璜栫祼(ji茅)鏋滄�庢ǎ,瀵�(sh铆)闅涜畝鍙栫殑鏁�(sh霉)鎿�(j霉)閮戒繚瀛樺湪杩斿洖绶╁瓨涓�,浠ヤ緵瑾�(di脿o)鐢ㄨ畝鎿嶄綔鐨勭▼搴忎娇鐢ㄣ��
銆�銆�瀵�(xi臎)鎿嶄綔
銆�銆�鍦�3. 瀵�(xi臎)鎿嶄綔鐨勬祦绋嬪湒
銆�銆�濡備笂鎵�杩�,瀵�(xi臎)鎿嶄綔骞朵笉鏄湡姝ｅ皣鏁�(sh霉)鎿�(j霉)瀵�(xi臎)鍏ヤ富瀛樺劜(ch菙)鍗�(q奴).瀵�(sh铆)闅涗笂,瀵�(xi臎)鎿嶄綔鏄皣鏁�(sh霉)鎿�(j霉)瀵�(xi臎)鍏�4鍊�(g猫)绶╁瓨涔嬩竴.鍦ㄩ�欑ó鏂瑰紡涓�,涓诲瓨鍎�(ch菙)鍗�(q奴)鍏�(n猫i)鍘熷厛鐨勬暩(sh霉)鎿�(j霉)灏囦竴鐩翠繚鎸佸埌鏁村��(g猫)鏈夋晥瀵�(xi臎)鎿嶄綔娴佺▼瀹屾垚鍚庣偤姝�.鍦�3鐨勬祦绋嬭(shu艒)鏄庝簡浠ヤ笅骞鹃粸(di菐n):
銆�銆�妾㈡煡闋�(y猫)闈㈠湴鍧�鍜岀珐瀛樺湴鍧�,浠ユ椹�(y脿n)鍏舵湁鏁堟��.濡傛灉鍦板潃鐒�(w煤)鏁�,鎿嶄綔鍦ㄩ�欓噷绲�(ji茅)鏉�,鍑芥暩(sh霉)杩斿洖涓�鍊�(g猫)鐒�(w煤)鏁堢珐瀛樺湴鍧�鎴栫劇(w煤)鏁堥爜(y猫)闈㈢法铏�(h脿o)閷�(cu貌)瑾や唬纰�銆�
銆�銆�璁�鍙栨瘡鍊�(g猫)瀵�(xi臎)绶╁瓨鐨勭媭鎱�(t脿i)鍩�.濡傛灉浠讳綍绶╁瓨铏曚簬鍗犵敤鐙�鎱�(t脿i),鍓囨搷浣滃け鏁楀苟杩斿洖瀵�(xi臎)閬�(gu貌)绋�(write sequence)閷�(cu貌)瑾や唬纰�銆�
銆�銆�4鍊�(g猫)瀵�(xi臎)绶╁瓨涔嬩竴鎳�(y墨ng)铏曚簬绲傛?f脿n)椤烞(t脿i).濡傛灉鏄�欐ǎ,婵�娲讳笅涓�鍊�(g猫)绶╁瓨銆�
銆�銆�鏁�(sh霉)鎿�(j霉)琚京(f霉)鍒跺埌瀵�(xi臎)绶╁瓨鐨勬暩(sh霉)鎿�(j霉)鍩�銆�
銆�銆�闋�(y猫)闈㈠湴鍧�琚(xi臎)鍏ュ湴鍧�鍩�.瑷�(j矛)绠桟RC鏍￠(y脿n)绲�(ji茅)鏋滃苟灏囧叾瀵�(xi臎)鍏RC鍩�.灏囩媭鎱�(t脿i)鏀圭偤鍗犵敤.灏囧墠涓�鍊�(g猫)绶╁瓨缃偤鍙敤鐙�鎱�(t脿i)(鍗虫洿鏂板師渚�(l谩i)鐨勭祩姝�?f脿n)椤烞(t脿i))銆�
銆�銆�闇�瑕佹敞鎰�,姝ゆ檪(sh铆)灏�(du矛)鏂板(xi臎)鐨勯爜(y猫)闈㈤��(j矛n)琛岃畝鎿嶄綔,灏囪繑鍥為爜(y猫)闈㈠師渚�(l谩i)鐨勬暩(sh霉)鍊�.鍙湁绛夋彁浜ゆ搷浣滃畬鎴愬悗,鎵嶆渻(hu矛)杩斿洖鏂板��銆�
銆�銆�鎻愪氦鎿嶄綔
銆�銆�鍦�4. 鎻愪氦鎿嶄綔鐨勬祦绋�
銆�銆�鎻愪氦鍑芥暩(sh霉)涓嶉渶瑕佸弮鏁�(sh霉).瀹冪殑宸ヤ綔灏辨槸濡傚(sh铆)鍦板皣鏁�(sh霉)鎿�(j霉)寰炲(xi臎)绶╁瓨?zh猫n)榄夊伔琛楅灁閹�?ch菙)鍗�(q奴),鐒跺悗灏囧(xi臎)绶╁瓨妯�(bi膩o)瑷樼偤绲傛?f脿n)椤烞(t脿i).鎻愪氦鍑芥暩(sh霉)鐨勬搷浣滄祦绋嬪鍦�4鎵�绀�:
銆�銆�璁�鍙栨瘡鍊�(g猫)瀵�(xi臎)绶╁瓨鐨勭媭鎱�(t脿i)鍩�.鎳�(y墨ng)瑭插彧鏈�1鍊�(g猫)绶╁瓨妯�(bi膩o)瑷樼偤鍗犵敤鐙�鎱�(t脿i).鍚﹀墖,鍑芥暩(sh霉)鍦ㄦ绲�(ji茅)鏉�,骞惰繑鍥炰竴鍊�(g猫)瀵�(xi臎)閬�(gu貌)绋嬮尟(cu貌)瑾や唬纰�銆�
銆�銆�灏�(du矛)琚崰鐢ㄧ殑绶╁瓨閫�(j矛n)琛孋RC鏍￠(y脿n).濡傛灉涓嶅尮閰�,鍓囪繑鍥炰竴鍊�(g猫)鏁�(sh霉)鎿�(j霉)鎼嶅閷�(cu貌)瑾や唬纰笺��
銆�銆�鎻愬彇闋�(y猫)闈㈠湴鍧�,骞跺皣鏁�(sh霉)鎿�(j霉)瀵�(xi臎)鍏ヤ富瀛樺劜(ch菙)鍗�(q奴)鐨勬寚瀹氶爜(y猫)闈�銆�
銆�銆�瑷�(j矛)绠楃珐瀛樼殑鏁�(sh霉)鎿�(j霉)閮ㄥ垎鐨凜RC.瑭插�艰淇濆瓨鍦ㄤ竴鍊�(g猫)鑷ㄦ檪(sh铆)瀵勫瓨鍣ㄤ腑銆�
銆�銆�鎵惧埌灏�(du矛)鎳�(y墨ng)鎵�閬镐富瀛樺劜(ch菙)鍗�(q奴)闋�(y猫)闈㈢殑鏍￠(y脿n)闋�(y猫)闈�,骞惰畝鍙栬┎鏍￠(y脿n)闋�(y猫)闈㈢殑鍏�(n猫i)瀹�銆�
銆�銆�鐢ㄥ墠闈㈣▓(j矛)绠楃殑CRC鏇存柊鏍￠(y脿n)闋�(y猫)闈�,鐐烘牎椹�(y脿n)闋�(y猫)闈㈣▓(j矛)绠楁柊鐨凜RC銆�
銆�銆�灏囨牎椹�(y脿n)闋�(y猫)闈㈡暩(sh霉)鎿�(j霉)閲嶆柊瀵�(xi臎)鍥炴牎椹�(y脿n)瀛樺劜(ch菙)鍗�(q奴)銆�
銆�銆�灏囧(xi臎)绶╁瓨鏇存柊鐐虹祩姝�?f脿n)椤烞(t脿i)銆�
銆�銆�鍥為��鎿嶄綔
銆�銆�鍦�5. 鍥為��鎿嶄綔鐨勬祦绋嬪湒
銆�銆�濡傚湒5鎵�绀�,鍥為��鍑芥暩(sh霉)鏄渶绨�(ji菐n)鍠殑鎿嶄綔涔嬩竴.鐢变簬涓诲瓨鍎�(ch菙)鍗�(q奴)鍙湁鍦ㄥ畬鎴愪竴鍊�(g猫)鎻愪氦鎿嶄綔鍚庢墠鏇存柊鏁�(sh霉)鎿�(j霉),鑰屼笉鏄湪涓�鍊�(g猫)瀵�(xi臎)鎿嶄綔涔嬪悗鏇存柊鐨�,鎵�浠ュ洖閫�鎿嶄綔鍙渶灏囧(xi臎)绶╁瓨缃偤鐒�(w煤)鏁堢媭鎱�(t脿i)鍗冲彲銆�
銆�銆�璁�鍙栨瘡鍊�(g猫)瀵�(xi臎)绶╁瓨鐨勭媭鎱�(t脿i)鍩�.鎳�(y墨ng)瑭插彧鏈変竴鍊�(g猫)绶╁瓨琚(bi膩o)瑷樼偤鍗犵敤.鍚﹀墖,鍑芥暩(sh霉)鍦ㄦ绲�(ji茅)鏉�,骞惰繑鍥炰竴鍊�(g猫)瀵�(xi臎)閬�(gu貌)绋嬮尟(cu貌)瑾や唬纰�銆�
銆�銆�灏囨墍閬哥殑瀵�(xi臎)绶╁瓨鐙�鎱�(t脿i)鍩熺疆鐐虹祩姝�銆�
銆�銆�妾㈡煡鎿嶄綔
銆�銆�鍦�6. 妾㈡煡鎿嶄綔鐨勬祦绋嬪湒
銆�銆�鍦ㄤ换浣曚笂闆绘儏娉佷笅,閮介渶瑕佽(di脿o)鐢ㄦ鏌ュ嚱鏁�(sh霉)浠ョ⒑淇滶EPROM鍙互鎺ュ彈鏁�(sh霉)鎿�(j霉).妾㈡煡鍑芥暩(sh霉)妾㈤(y脿n)瀛樺劜(ch菙)绯荤当(t菕ng)鐨勫彲鐢ㄦ��,骞跺牨(b脿o)鍛婁换浣曠櫦(f膩)鐝�(xi脿n)鐨勯尟(cu貌)瑾�.瑭插嚱鏁�(sh霉)鐨勬鏌ユ搷浣滃鍦�6鎵�绀�:
銆�銆�璁�鍙栨瘡鍊�(g猫)瀵�(xi臎)绶╁瓨锛岀⒑瑾�(r猫n)鍙湁涓�鍊�(g猫)绶╁瓨涓嶆槸鍙敤鐙�鎱�(t脿i).濡傛灉鍙湁涓�鍊�(g猫)绶╁瓨鍚湁鏈畾缇╃殑鐙�鎱�(t脿i)浠ｇ⒓,鍓囪繑鍥炰竴鍊�(g猫)瀵�(xi臎)鎿嶄綔涓柗(interrupted write)閷�(cu貌)瑾や唬纰�銆傚鏋滄墍鏈夌珐瀛樺潎鍖呭惈鏈畾缇╃殑鐙�鎱�(t脿i)浠ｇ⒓,鍓囪繑鍥濫EPROM鏈垵濮嬪寲(uninitialized EEPROM)閷�(cu貌)瑾や唬纰�銆�
銆�銆�濡傛灉鍍呮湁涓�鍊�(g猫)绶╁瓨鍖呭惈鍗犵敤鐙�鎱�(t脿i)浠ｇ⒓,瑷�(j矛)绠楁绶╁瓨鐨凜RC.濡傛灉CRC涓嶅尮閰�,鍓囪繑鍥炰竴鍊�(g猫)瀵�(xi臎)鎿嶄綔涓柗閷�(cu貌)瑾や唬纰�銆�
銆�銆�妾㈡煡鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨勬瘡涓�鍊�(g猫)闋�(y猫)闈�.濡傛灉浠讳綍闋�(y猫)闈㈡矑(m茅i)鏈夐�氶亷(gu貌)CRC鏍￠(y脿n),鍓囪繑鍥炰繚璀�(h霉)澶辨晽閷�(cu貌)瑾や唬纰笺��
銆�銆�,妾㈡煡涓诲瓨鍎�(ch菙)鍗�(q奴)鐨勬瘡涓�闋�(y猫),骞惰垏瀛樺劜(ch菙)鐨勫悇闋�(y猫)CRC閫�(j矛n)琛屽皪(du矛)姣�.濡傛灉鏈�1闋�(y猫)鏈�氶亷(gu貌)CRC鏍￠(y脿n),鍓囪繑鍥炰竴鍊�(g猫)鎻愪氦涓柗(interrupted commit)閷�(cu貌)瑾や唬纰�銆�
銆�銆�娓呯悊鎿嶄綔
銆�銆�鍦�7. 娓呯悊鎿嶄綔鐨勬祦绋�
銆�銆�娓呯悊鍑芥暩(sh霉)瑙ｆ焙EEPROM绯荤当(t菕ng)瀛樺湪鐨勪换浣曞晱(w猫n)椤�.鍦ㄦ竻鐞嗘搷浣滈��鍑烘檪(sh铆),鐒�(w煤)璜朎EPROM瀛愮郴绲�(t菕ng)鍏堝墠鏄綍绋媭鎱�(t脿i),閮芥噳(y墨ng)瑭插彲浠ョ辜绾�(x霉)浣跨敤浜�.鎵�鏈夋湭鎻愪氦鐨勫(xi臎)鎿嶄綔灏囪鍥為��,骞朵笖瀹屾垚澶辨晽鐨勬彁浜ゆ搷浣溿��
銆�銆�鍦�7婕旂ず浜嗘竻鐞嗘搷浣滄槸濡備綍宸ヤ綔鐨�:
銆�銆�濡傛灉妾㈡煡鎿嶄綔杩斿洖涓�鍊�(g猫)EEPROM鏈垵濮嬪寲鐨勯尟(cu貌)瑾や唬纰�,鍓囧垵濮嬪寲EEPROM.娓呴櫎鎵�鏈夋暩(sh霉)鎿�(j霉)闋�(y猫)闈�,骞朵笖鍒濆鍖栨墍鏈夋牎椹�(y脿n)闋�(y猫)闈�.闄や竴鍊�(g猫)瀵�(xi臎)绶╁瓨琚垵濮嬪寲鐐虹祩姝�?f脿n)椤烞(t脿i)澶�,娓呴櫎鍏跺畠鎵�鏈夊(xi臎)绶╁瓨骞剁疆鐐哄彲鐢ㄧ媭鎱�(t脿i)銆�
銆�銆�濡傛灉妾㈡煡鎿嶄綔杩斿洖涓�鍊�(g猫)瀵�(xi臎)鎿嶄綔涓柗閷�(cu貌)瑾や唬纰�,鍓囨壘鍒伴偅鍊�(g猫)涓嶆槸鍙敤鐙�鎱�(t脿i)鐨勫(xi臎)绶╁瓨.灏囧畠鐨勭媭鎱�(t脿i)鏀圭偤绲傛?f脿n)椤烞(t脿i)銆�
銆�銆�濡傛灉妾㈡煡鎿嶄綔杩斿洖涓�鍊�(g猫)鎻愪氦涓柗閷�(cu貌)瑾や唬纰�,鍓囨壘鍒癈RC涓嶅尮閰嶇殑涓婚爜(y猫)闈�.瑷�(j矛)绠楀嚭瀹冪殑CRC骞舵洿鏂扮浉闂�(gu膩n)鏍￠(y脿n)闋�(y猫)闈�銆�
銆�銆�濡傛灉妾㈡煡鎿嶄綔杩斿洖淇濊(h霉)澶辨晽閷�(cu貌)瑾や唬纰�,鍓囪〃绀虹穵闅ㄦ彁浜ゆ搷浣滅殑鏇存柊鏍￠(y脿n)闋�(y猫)闈㈡搷浣滆涓柗.璁�鍑烘墍鏈夎垏閷�(cu貌)瑾ゆ牎椹�(y脿n)闋�(y猫)闈㈢浉闂�(gu膩n)鐨勪富瀛樺劜(ch菙)鍗�(q奴)闋�(y猫)闈�,骞跺埛鏂版牎椹�(y脿n)闋�(y猫)闈�銆�
銆�銆�瀹夊叏鎬ц瓑鏄�
銆�銆�瑕佽瓑鏄庣郴绲�(t菕ng)鐨勫畨鍏ㄦ��,闇�瑕佺⒑瀹氬(xi臎)鎿嶄綔閬�(gu貌)绋嬩腑鏁�(sh霉)鎿�(j霉)瀹规槗鎼嶅鐨勬檪(sh铆)鍒�.(璁�鎿嶄綔寰炴湰璩�(zh矛)涓婁締(l谩i)瑾�(shu艒)鏄畨鍏ㄧ殑.璁�鎿嶄綔鏈熼枔涓嶆渻(hu矛)灏�(du矛)EEPROM闋�(y猫)闈㈤��(j矛n)琛屽(xi臎)鎿嶄綔,鍥犳鏁�(sh霉)鎿�(j霉)涓嶆渻(hu矛)琚悕澹�.) 纰哄畾浜嗛�欎簺鏄撴悕鏅�(sh铆)鍒诲悗,鍙渶瑕佸啀纰哄畾涓�鍊�(g猫)鎭㈠京(f霉)閬�(gu貌)绋�.濡傛灉鎭㈠京(f霉)姗�(j墨)鍒舵兜钃嬩簡鎵�鏈夊彲鑳界殑鏁�(sh霉)鎿�(j霉)鎼嶅け鎯呮硜,鑰屼笖濡傛灉鎴戝�戝亣瀹氬湪浠讳綍涓�鍊�(g猫)鍙兘鐮村EEPROM瀵�(xi臎)鍛ㄦ湡鐨勪簨浠朵箣鍚�,閮藉皣棣栧厛鍩�(zh铆)琛屾牎椹�(y脿n)/娓呯悊鍛ㄦ湡(渚嬪涓婇浕),閭ｄ箞绯荤当(t菕ng)灏辨槸瀹夊叏鐨�銆�
銆�銆�鍦ㄥぇ澶氭暩(sh霉)涓茶EEPROM鍣ㄤ欢涓�,涓�鍊�(g猫)瀵�(xi臎)鎿嶄綔棣栧厛灏囬爜(y猫)闈㈢殑姣忎綅鏁�(sh霉)鎿�(j霉)閮界疆鐐哄凡鐭ュ��,鐒跺悗灏囨墍鏈夐渶瑕佹敼璁婄殑浣嶈ō(sh猫)缃偤闇�瑕佺殑鍊�.鍥犳鍦ㄦ帀闆绘檪(sh铆),涓柗鐨勫(xi臎)鎿嶄綔妤垫湁鍙兘鐮村瑭查爜(y猫)鐨勬墍鏈夊瓧绡�(ji茅).閫�?锛熸ⅱ閰濄劅^(gu貌)鍚戞悕澹為爜(y猫)闈㈠(xi臎)鍏ユ柊鏁�(sh霉)鎿�(j霉),閫�(j矛n)鑰屽緸閫欎竴澶辨晥浜嬩欢涓仮寰�(f霉)鍑轰締(l谩i).浣嗛�欐渻(hu矛)澶卞幓鍘熶締(l谩i)鐨勬暩(sh霉)鎿�(j霉)銆�
銆�銆�瀵�(xi臎)鎿嶄綔閬�(gu貌)绋嬩腑鏁�(sh霉)鎿�(j霉)瀹规槗鎼嶅鐨勬檪(sh铆)鍒诲涓嬫墍杩�(鎸夌櫦(f膩)鐢熺殑鏅�(sh铆)闁撻爢搴忔帓鍒�):
銆�銆�灏�(du矛)鏁�(sh霉)鎿�(j霉)鍩熼��(j矛n)琛屽(xi臎)鎿嶄綔:濡傛灉姝ゆ檪(sh铆)鐧�(f膩)鐢熼浕婧愬け鏁堜簨浠�,妾㈡煡鎿嶄綔涓嶆渻(hu矛)妾㈡脯(c猫)鍒伴尟(cu貌)瑾�.姝ｅ湪琚(xi臎)鍏ョ殑瀵�(xi臎)绶╁瓨浠嶉’绀哄彲鐢ㄧ媭鎱�(t脿i),浣嗗彲鐢ㄧ殑绶╁瓨涓嶅寘鍚湁鏁堢殑CRC鍊�銆�
銆�銆�鍚戠暥(d膩ng)鍓嶅(xi臎)绶╁瓨瀵�(xi臎)鍏ョ媭鎱�(t脿i)淇℃伅:閫欏��(g猫)鎿嶄綔灏囩媭鎱�(t脿i)鍩熸敼鐐哄崰鐢ㄧ媭鎱�(t脿i),瑷�(sh猫)瀹欳RC骞剁偤瀵�(xi臎)鎿嶄綔濉叆闋�(y猫)闈㈠湴鍧�.濡傛灉閫欏��(g猫)閬�(gu貌)绋嬭涓柗,鍙兘鐧�(f膩)鐢熷涓嬫儏娉�:(1) 鐙�鎱�(t脿i)鐒�(w煤)鏁�,寰炶�屽皫(d菐o)鑷翠竴鍊�(g猫)瀵�(xi臎)鎿嶄綔涓柗閷�(cu貌)瑾�;(2) 鐙�鎱�(t脿i)鏈夋晥,浣咰RC閷�(cu貌)瑾�,浠嶆渻(hu矛)灏�(d菐o)鑷翠竴鍊�(g猫)瀵�(xi臎)鎿嶄綔涓柗閷�(cu貌)瑾�;(3) 鐙�鎱�(t脿i)鍜孋RC鍩熸湁鏁�.鍦ㄩ�欑ó鎯呭舰涓�,绯荤当(t菕ng)鏈夋湭鎻愪氦铏曠悊鐨勫(xi臎)鎿嶄綔.鍙互妾㈡脯(c猫)鍒伴�欎竴鐙�鎱�(t脿i),鍥�?y脿n)姒囪棴r(sh铆)涓�鍊�(g猫)绶╁瓨灏囪檿浜庡崰鐢ㄧ媭鎱�(t脿i)鑰屽彟涓�鍊�(g猫)绶╁瓨鐐虹祩姝�?f脿n)椤烞(t脿i).濡傛灉瀛愮郴绲�(t菕ng)鐨勫叾瀹冮儴鍒嗘鏌ラ�氶亷(gu貌),鍓囩敤鎴�(h霉)浠ｇ⒓鍙�氶亷(gu貌)鐧�(f膩)鍑烘彁浜ゆ垨鍥為��鎿嶄綔绻肩簩(x霉)鍩�(zh铆)琛�.鐒�(w煤)璜栫櫦(f膩)鐢熶綍绋儏娉�,涓诲瓨鍎�(ch菙)鍗�(q奴)鍜屾牎椹�(y脿n)瀛樺劜(ch菙)鍗�(q奴)閮芥槸瀹夊叏鐨勩��
銆�銆�鍓嶄竴鍊�(g猫)绶╁瓨鐙�鎱�(t脿i)娓呴櫎鐐哄彲鐢ㄧ媭鎱�(t脿i):绶╁瓨鍙兘鏈夋悕澹炵殑鐙�鎱�(t脿i)鎴朇RC,鑰屼笅涓�鍊�(g猫)绶╁瓨鐐哄崰鐢ㄧ媭鎱�(t脿i).閫欐剰鍛宠憲娓呴櫎瑭茬珐瀛樼殑鐙�鎱�(t脿i)鏅�(sh铆)鎿嶄綔琚腑鏂�,閫欑ó鎯呮硜涓嬪彲浠ュ煼(zh铆)琛屾彁浜ゆ垨鍥為��鎿嶄綔銆�
銆�銆�鍦ㄥ(xi臎)鎿嶄綔鍜屾彁浜ゆ搷浣滀箣闁�:鍙湁涓�鍊�(g猫)瀵�(xi臎)绶╁瓨灏囪檿浜庡崰鐢ㄧ媭鎱�(t脿i),骞朵笖閫氶亷(gu貌)浜咰RC鏍￠(y脿n).鐢ㄦ埗(h霉)浠ｇ⒓鍙互璜�(q菒ng)姹傛彁浜ゆ垨鍥為��鎿嶄綔.瀵�(xi臎)绶╁瓨銆佹牎椹�(y脿n)瀛樺劜(ch菙)鍗�(q奴)鍜屼富瀛樺劜(ch菙)鍗�(q奴)閮芥槸瀹夊叏鐨�銆�
銆�銆�鎻愪氦鎿嶄綔閬�(gu貌)绋嬩腑鏁�(sh霉)鎿�(j霉)瀹规槗鎼嶅鐨勬檪(sh铆)鍒诲涓嬫墍杩�:
銆�銆�灏囨暩(sh霉)鎿�(j霉)鍩熷京(f霉)鍒跺埌涓诲瓨鍎�(ch菙)鍗�(q奴):濡傛灉瀵�(xi臎)鎿嶄綔琚腑鏂�,涓诲瓨鍎�(ch菙)鍗�(q奴)鐨�1鍊�(g猫)闋�(y猫)闈㈡暩(sh霉)鎿�(j霉)鍙兘琚牬澹�.妾㈡煡鍑芥暩(sh霉)鏈�(hu矛)妾㈡脯(c猫)鍒板叐绋媭鎱�(t脿i):(1) 涓�鍊�(g猫)鏈夋晥鐨勫崰鐢ㄥ(xi臎)绶╁瓨;(2) 涓柗鐨勬彁浜ゆ搷浣滃皫(d菐o)鑷翠富瀛樺劜(ch菙)鍗�(q奴)闋�(y猫)闈㈡暩(sh霉)鎿�(j霉)鎼嶅銆傚(xi臎)绶╁瓨鍜屾牎椹�(y脿n)瀛樺劜(ch菙)鍗�(q奴)鏄畨鍏ㄧ殑锛屽湪閫欑ó鎯呮硜涓�,娓呯悊鎿嶄綔鏈�(hu矛)瀹屾垚鎻愪氦鎿嶄綔骞惰繑鍥炰竴鍊�(g猫)骞插噲鐨勭郴绲�(t菕ng)銆傛敞鎰�:鍗充娇瀵�(xi臎)鎿嶄綔宸茬稉(j墨ng)瀹屾垚,妾㈡煡鎿嶄綔浠嶆渻(hu矛)鍥�?y脿n)妯撅綊?y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨凜RC鑸囪▓(j矛)绠楀嚭鐨凜RC涓嶅尮閰嶈�屽牨(b脿o)閷�(cu貌)銆�
銆�銆�鏇存柊鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨凜RC:濡傛灉灏�(du矛)鏍￠(y脿n)闋�(y猫)闈㈢殑瀵�(xi臎)鎿嶄綔琚腑鏂�,鍓囨暣鍊�(g猫)闋�(y猫)闈㈢殑鏁�(sh霉)鎿�(j霉)閮藉彲鑳借鐮村.閫欐剰鍛宠憲涓诲瓨鍎�(ch菙)鍗�(q奴)鐨�15鍊�(g猫)闋�(y猫)闈㈤兘灏�(du矛)鎳�(y墨ng)钁楃劇(w煤)鏁堢殑CRC.浣嗘槸鐢变簬鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鐨勬瘡涓�闋�(y猫)閮芥湁鑷繁鐨勬牎椹�(y脿n)鍜�,鑰屼笖鍦ㄥ(xi臎)鎿嶄綔涓柗鍚庢渻(hu矛)鐢�(ch菐n)鐢熸牎椹�(y脿n)鍜岄尟(cu貌)瑾�,鍥犳妾㈡煡绋嬪簭鏈�(hu矛)鐧�(f膩)鐝�(xi脿n)閫欎竴榛�(di菐n).鍦ㄩ�欑ó鎯呮硜涓�,妾㈡煡绋嬪簭鏈�(hu矛)杩斿洖淇濊(h霉)澶辨晽.淇京(f霉)鏂规硶濡備笅:棣栧厛閲嶆柊瑷�(j矛)绠楁墍鏈夊彈褰遍熆鐨�15鍊�(g猫)闋�(y猫)闈㈢殑CRC鍊�.鐒跺悗灏囬�欎簺鍊煎拰瑭查爜(y猫)鑷韩鐨勬湁鏁圕RC鍊间竴璧峰(xi臎)鍏ユ牎椹�(y脿n)闋�(y猫)闈�銆�
銆�銆�鏇存柊瀵�(xi臎)绶╁瓨鐨勭媭鎱�(t脿i)淇℃伅:濡傛灉鐣�(d膩ng)鐙�鎱�(t脿i)璁婇噺寰炲崰鐢ㄧ媭鎱�(t脿i)璁�?y艒u)姒籏姝�?f脿n)椤烞(t脿i)鏅�(sh铆),瀵�(xi臎)鍛ㄦ湡琚腑鏂�,閭ｄ箞鏁村��(g猫)瀵�(xi臎)绶╁瓨闋�(y猫)闈㈢殑鏁�(sh霉)鎿�(j霉)閮藉彲鑳借鎼嶅銆備絾鏄�,鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鍜屼富瀛樺劜(ch菙)鍗�(q奴)閮芥槸瀹夊叏鐨�銆傛鏌ユ搷浣滄渻(hu矛)鎵惧埌鏁�(sh霉)鎿�(j霉)鎼嶅鐨勯爜(y猫)闈�,骞惰繑鍥炲(xi臎)鎿嶄綔涓柗閷�(cu貌)瑾や唬纰�.鐣�(d膩ng)閬�(y霉n)琛屾竻鐞嗙▼搴忔檪(sh铆),瀹冨皣寰�(f霉)浣嶅(xi臎)绶╁瓨瀛愮郴绲�(t菕ng),骞跺畬鎴愭彁浜ゆ搷浣溿��
銆�銆�,鍦ㄥ洖閫�鎿嶄綔涓暩(sh霉)鎿�(j霉)瀹规槗鎼嶅鐨勬檪(sh铆)鍒荤偤:
銆�銆�鏇存柊瀵�(xi臎)绶╁瓨鐨勭媭鎱�(t脿i):鑸囨彁浜ゅ懆鏈熺殑鏈�绲傜媭鎱�(t脿i)椤�(l猫i)浼�,瑭叉搷浣滃彧鏄啊(ji菐n)鍠湴灏囧(xi臎)绶╁瓨鐨勫崰鐢ㄧ媭鎱�(t脿i)寰�(f霉)浣嶈嚦绲傛?f脿n)椤烞(t脿i).濡傛灉瀹冭涓柗,鍓囨鏌ョ▼搴忔渻(hu矛)杩斿洖瀵�(xi臎)鎿嶄綔涓柗,骞朵笖娓呯悊绋嬪簭鏈�(hu矛)閲嶆柊鍒濆鍖栨墍鏈夌殑瀵�(xi臎)绶╁瓨鍗�(q奴)鍩�.鏍￠(y脿n)瀛樺劜(ch菙)鍗�(q奴)鍜屼富瀛樺劜(ch菙)鍗�(q奴)浠嶆槸瀹夊叏鐨�銆�
銆�銆�鍙互鐪嬪嚭,鐒�(w煤)璜栭浕婧愪綍鏅�(sh铆)鎺夐浕鎴栬檿鐞嗗櫒浣曟檪(sh铆)琚京(f霉)浣�,瀛樺劜(ch菙)瀛愮郴绲�(t菕ng)閮藉彲淇濇寔?j菒n)?sh霉)鎿�(j霉)鐨勫畬鏁存��.鐧�(f膩)鐢熼浕婧愬け鏁堜簨浠跺悗,瀛樺劜(ch菙)瀛愮郴绲�(t菕ng)鏈�(hu矛)杩斿洖鍒板彲閫�(j矛n)琛岃畝鎴�?q奴)鎳欒嚀椤烞(t脿i).濡傛灉涓�鍊�(g猫)鎻愪氦鎿嶄綔琚腑鏂�,瀛愮郴绲�(t菕ng)鏈�(hu矛)杩斿洖鍒板彲鍩�(zh铆)琛屾彁浜ゆ垨鍥為��鎿嶄綔鐨勭媭鎱�(t脿i)銆�
銆�銆�瑷�(sh猫)瑷�(j矛)璧锋
銆�銆�MAXQ寰帶鍒跺櫒鐨凟EPROM瀛樺劜(ch菙)绯荤当(t菕ng)鍔熻兘瀹屽倷.绯荤当(t菕ng)瑷�(sh猫)瑷�(j矛)鑰呭彲浠ユ牴鎿�(j霉)闇�瑕佷締(l谩i)澧炲挤(qi谩ng)瑭茬郴绲�(t菕ng)鐨勫姛鑳�.浣嗛渶瑕佹敞鎰忎互涓嬪咕榛�(di菐n):
銆�銆�C灏佽绋嬪簭:鍦ㄥ鏁�(sh霉)C瑾�(y菙)瑷�妯�(bi膩o)婧�(zh菙n)涓�,鑸囧尟绶ㄨ獮(y菙)瑷�瀛愮▼搴忛洐鍚戝偝閫佹暩(sh霉)鎿�(j霉)鏅�(sh铆)閮芥湁涓�濂楁(bi膩o)婧�(zh菙n)鐨勬柟娉�.渚嬪鍦↖AR闁�(k膩i)鐧�(f膩)鐠�(hu谩n)澧冧笅,鍙冩暩(sh霉)鍦ㄤ綆绶ㄨ櫉(h脿o)鐨勭疮鍔犲櫒涓偝鍏ュ拰鍌冲嚭.鐢变簬鍙冩暩(sh霉)宸茬稉(j墨ng)鍌冲叆A[0]鍜孉[1],鐐洪�欎簺绋嬪簭寤虹珛涓�鍊�(g猫)C灏佽鍣�,灏卞儚瀵�(xi臎)鍑芥暩(sh霉)鍘熷瀷涓�妯ｅ鏄�.鍦ㄥ叾瀹僀鐠�(hu谩n)澧冧笅,鍙冩暩(sh霉)鍌抽仦鏄�氶亷(gu貌)鏁�(sh霉)鎿�(j霉)妫ч��(j矛n)琛岀殑,闇�瑕佷竴鍊�(g猫)绨�(ji菐n)鍠殑灏佽瀛愮▼搴�銆�
銆�銆�骞剁櫦(f膩)铏曠悊:棣栧厛瑕佷繚璀夊(xi臎)鍛ㄦ湡鐨勫畬鏁存��,骞朵笖鎻愪緵涓�濂楄兘澶犱繚璀夊畬鏁存�х殑姗�(j墨)鍒�,灏�(du矛)浜庢暣鍊�(g猫)骞宠嚭(t谩i)鐨勬垚鏁楄嚦闂�(gu膩n)閲嶈.浣嗗緢澶氭噳(y墨ng)鐢ㄩ兘闇�瑕侀�欐ǎ涓�绋(j墨)鍒�,鍗冲彲浠ヨ畵涓�绯诲垪瀵�(xi臎)鍛ㄦ湡鎺掗殜(du矛)骞朵竴娆″煼(zh铆)琛屽畬鐣�,寰炶�屼繚璀夊叏閮藉煼(zh铆)琛屾垨鍏ㄩ兘涓嶅煼(zh铆)琛�.浣嗘湰鏂囪◣璜栫殑姗�(j墨)鍒朵笉鑳藉伐浣滃湪閫欑ó鏂瑰紡涓�.濡傛灉涓�鍊�(g猫)绯荤当(t菕ng)瀛樻湁璺ㄨ秺澶氬��(g猫)闋�(y猫)闈㈢殑淇℃伅瑷橀寗,鍓囧彲浠ヤ腑鏂蜂竴鍊�(g猫)瀵�(xi臎)鎿嶄綔,閫欎娇寰楁仮寰�(f霉)涔嬪悗鐨勮閷勬兜钃嬩簡鍖呭惈閮ㄥ垎鏂版暩(sh霉)鎿�(j霉)鐨勯爜(y猫)闈㈠拰鍖呭惈閮ㄥ垎鑸婃暩(sh霉)鎿�(j霉)鐨勯爜(y猫)闈�.鏈変竴绋柟娉曞彲閬垮厤瑭插晱(w猫n)椤�,鍗冲湪鍩�(zh铆)琛屾彁浜ゆ搷浣滀箣鍓嶅厑瑷卞閲嶅(xi臎)鎿嶄綔.閫欑ó鏂规硶骞朵笉鍍忚伣(t墨ng)涓婂幓閭ｄ箞绨�(ji菐n)鍠�,鍥�?y脿n)姗愮矉鈧�(g猫)閮ㄥ垎鎻愪氦鐨勪簨鍕�(w霉),鍙兘鍚屾檪(sh铆)鍖呮嫭鏂扮磤(j矛)閷勭墖鏂�銆佽垔瑷橀寗鐗囨柗鍜屾悕澹炵殑闋�(y猫)闈�銆�
銆�銆�骞冲潎璁�瀵�(xi臎)姗�(j墨)鍒�:骞冲潎璁�瀵�(xi臎)浣滅偤闁冨瓨鏂囦欢绯荤当(t菕ng)鐨勪竴鍊�(g猫)鐗归粸(di菐n),鏄寚铏涙摤鍖栭爜(y猫)闈㈠湴鍧�,浣垮緱琚牷绻佸(xi臎)鍏ョ殑闋�(y猫)闈㈡渻(hu矛)鍑虹従(xi脿n)鍦ㄥ瓨鍎�(ch菙)鍣ㄧ殑浠讳綍鐗╃悊浣嶇疆.浣嗘槸寰堥洠鎵惧埌瀵�(sh铆)鐝�(xi脿n)閫欎竴鐩(bi膩o)鐨勬柟娉�.閫欐槸鍥�?y脿n)?鏈�鐩存帴鐨勮В姹烘柟娉�(娲诲嫊(d貌ng)瀛樺劜(ch菙)濉婄殑鐩寗铏曚簬鍥哄畾鐨勪綅缃�,骞朵笖姣忔瀵�(xi臎)鎿嶄綔鍚庨兘瑕佸皪(du矛)瀹冮��(j矛n)琛屾洿鏂�)鏈�(hu矛)灏�(d菐o)鑷村瓨鍎�(ch菙)鐩寗鐨勯爜(y猫)闈㈣繀閫熸悕鑰�.鎵�浠�,灏卞儚铏曠悊鏁�(sh霉)鎿�(j霉)闋�(y猫)闈㈤偅妯�,閭勫繀闋堣櫅鎿寲鍜岄洟鏁ｅ寲鐩寗鏈韩銆�
銆�銆�鍏跺畠闋�(y猫)闈㈠昂瀵�:閫欓噷绲﹀嚭鐨勭郴绲�(t菕ng)鍋囧畾閲囩敤涓�鍊�(g猫)16kB銆佹瘡闋�(y猫)32瀛楃瘈(ji茅)鐨勫瓨鍎�(ch菙)鍣ㄤ欢.濡傛灉鎵�閬告搰鐨勫櫒浠跺叿鏈夋洿澶х殑闋�(y猫)闈㈠昂瀵�(64瀛楃瘈(ji茅)鎴�128瀛楃瘈(ji茅)),閫欎簺鍑芥暩(sh霉)浠嶅彲宸ヤ綔,鍙槸鏈�(hu矛)浼撮毃涓�浜涢澶栫殑瀵�(xi臎)鍏ユ悕鑰�.(鏇存柊128瀛楃瘈(ji茅)闋�(y猫)闈腑鐨�32瀛楃瘈(ji茅)鍗�(q奴)娈垫檪(sh铆),鏈�(hu矛)灏�(du矛)鏁村��(g猫)128瀛楃瘈(ji茅)闋�(y猫)闈㈠煼(zh铆)琛屽(xi臎)鎿嶄綔).浣嗛�欎簺鍑芥暩(sh霉)鐒�(w煤)娉曞皪(du矛)鍏锋湁鏇村皬闋�(y猫)闈㈠昂瀵哥殑鍣ㄤ欢閫�(j矛n)琛屾搷浣�.鍙互妲�(g貌u)寤轰竴鍊�(g猫)鑳藉鍦ㄧ窔纰哄畾EEPROM鍣ㄤ欢鐗规�х殑绯荤当(t菕ng),骞跺彲鏍规摎(j霉)瀵�(sh铆)闅涚壒鎬ч厤缃郴绲�(t菕ng)鐨勫弮鏁�(sh霉)銆�
銆�銆�澧炲挤(qi谩ng)鐨勫畨鍏ㄦ��:鏈郴绲�(t菕ng)灏�(du矛)浠ヤ笅椤�(l猫i)鍨嬬殑閷�(cu貌)瑾ゆ彁渚涗繚璀�(h霉):鐢变簬闆绘簮澶辨晥鎴栦笉鍙爯(y霉)鏈熺殑绯荤当(t菕ng)寰�(f霉)浣嶈�岄�犳垚鐨凟EPROM鎿嶄綔涓柗.浣咵EPROM鍣ㄤ欢鍋剁埦涔熸渻(hu矛)鍥�?y脿n)妲犳笇顝燁厠铏洪播e(cu貌).渚嬪,鐢变簬闆昏矾鍣伈鎴栬嚧闆婚洟杓诲皠灏�(d菐o)鑷寸殑杌熶欢閷�(cu貌)瑾�.鎴栬�呯敱浜庝竴鍊�(g猫)鎴栧鍊�(g猫)瀛樺劜(ch菙)鍠厓鎼嶈�楄�屽皫(d菐o)鑷寸‖浠堕尟(cu貌)瑾�銆�
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