鎽� 瑕侊細鍦ㄥ垎鏋怌AN绺界窔闆欑禐绶氬拰鍏夌簴鍌宠几鐗归粸鐨勫熀绀�(ch菙)涓�锛屾彁鍑轰竴绋熀浜庡厜绾栨敹鐧�(f膩)涓€楂旀ā濉婂強CAN绺界窔鎺у埗鍣⊿JAl000鐨勫厜绾栧偝杓告帴鍙hō(sh猫)瑷堟柟妗堬紱瑭崇窗浠嬬垂鍏夌簴鏀剁櫦(f膩)鍣ㄧ殑閬稿彇鍙婂偝杓告帴鍙g殑瀵︾従(xi脿n)锛涙牴鎿�(j霉)鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉婂皪淇¤櫉婧愭檪閻樻彁鍙栫殑瑕佹眰浠ュ強CAN绺界窔鐨勯潪鐮村鎬х附绶氫徊瑁佺殑鐗归粸锛岃ō(sh猫)瑷堜簡涓€绋瓹AN绺界窔淇¤櫉绶ㄨВ纰兼柟娉�锛屼簳鐢‵PGA鍔犱互瀵︾従(xi脿n)锛涢€氶亷瀵﹂殯鐨勯€氫俊瀵﹂椹楄瓑浜嗚ō(sh猫)瑷堟柟妗堢殑姝g⒑鎬�锛屽苟鏍规摎(j霉)瀵﹂鏁�(sh霉)鎿�(j霉)灏岰AN绺界窔鍦ㄥ叐绋粙璩�(zh矛)涓嬬殑鍌宠几鎬ц兘浣滀簡姣旇純銆�
闂�(gu膩n)閸佃锛�CAN绺界窔锛涘厜绾栵紱鍌宠几鎺ュ彛锛汧PGA
寮� 瑷€
銆€銆€浣滅偤涓€绋垚鐔熺殑鐝�(xi脿n)鍫寸附绶氭妧琛�(sh霉)锛孋AN锛圕ontrollerArea Network锛夌附绶氬湪姹借粖銆侀浕鍔�銆佹姊般€佸寲宸ョ瓑宸ユキ(y猫)鎺у埗闋�(l菒ng)鍩熷緱鍒颁簡妤电偤寤f硾鐨勬噳(y墨ng)鐢�銆侰AN鍗�(xi茅)璀版婧栦腑瑕�(gu墨)瀹氫簡CAN绺界窔鏀寔鐨勫叐绋偝杓镐粙璩�(zh矛)鈥斺€旈洐绲炵窔鍜屽厜绾栥€傜洰鍓�锛岀禃澶у鏁�(sh霉)CAN绺界窔绯荤当(t菕ng)閲囩敤鐨勯兘鏄洐绲炵窔鍌宠几銆傚厜绾栦竴鑸噳(y墨ng)鐢ㄤ簬澶у閲�銆侀珮閫熺巼鐨勫偝杓镐腑锛屽皪浜嶤AN绺界窔閫欑ó鍌宠几閫熺巼杓冧綆銆佹暩(sh霉)鎿�(j霉)閲忚純灏忕殑鐝�(xi脿n)鍫寸附绶氶€氫俊锛屽厜绾栧偝杓�?sh霉)鑶�?y艒u)鍕㈠緱涓嶅埌瀹屽叏鐧�(f膩)鎻紝鍥犳鍏夌簴鍌宠几?sh霉)鑶�?y墨ng)鐢ㄩ倓涓嶅銆傚湅鍏�(n猫i)澶栧瀹剁爺绌舵妲�(g貌u)涔熼兘閫茶浜咰AN绺界窔鍏夌簴鍌宠几?sh霉)闅捐姱?锛屼絾涓昏鏄熀浜庡垎绔嬪厜绾栨敹鐧�(f膩)鍏冧欢鐨勬柟娉�銆傛湰鏂囦粙绱逛簡涓€绋娇鐢ㄥ厜绾栨敹鐧�(f膩)涓€楂旀ā濉�锛岀祼(ji茅)鍚堢法瑙g⒓绠楁硶瀵︾従(xi脿n)CAN绺界窔鍏夌簴鍌宠几鎺ュ彛鐨勬柟妗�;鏍规摎(j霉)CAN绺界窔鐨勭壒榛炲拰瀵﹂鏁�(sh霉)鎿�(j霉)锛屽垎鏋愪簡CAN绺界窔鍦ㄥ厜绾栦粙璩�(zh矛)涓嬪偝杓告€ц兘鐨勬敼鍠�銆�
1 CAN绺界窔鐨勯洐绲炵窔鍙婂厜绾栧偝杓�
銆€銆€1.1 CAN绺界窔闆欑禐绶氬偝杓�
銆€銆€CAN绺界窔鍏稿瀷鐨勭恫(w菐ng)绲�(lu貌)鎷撴挷鏄附绶氱祼(ji茅)妲�(g貌u)銆�1993骞撮爳甯冪殑鍚岄殯妯欐簴ISOll898灏嶅熀浜庨洐绲炵窔鐨凜AN绺界窔鍌宠几浠嬭唱(zh矛)鐗规€у仛鍑轰簡寤鸿锛氱附绶氬彲鍏锋湁鍏╃ó閭忚集鐙€鎱�(t脿i)锛屽嵆闅辨€э紙閭忚集"l"锛夋垨椤€э紙閭忚集"0"锛夈€傚湒1鐐哄熀浜嶤AN绺界窔鎺у埗鍣⊿JA1000鍜岀附绶氶﹨(q奴)鍕曞櫒PCA82C250鐨凜AN闆欑禐绶氬偝杓哥恫(w菐ng)绲�(lu貌)绲�(ji茅)妲�(g貌u)鍦�銆�
銆€銆€CAN绺界窔闆欑禐绶氬偝杓告帴鍙g殑鐗归粸鏄妧琛�(sh霉)涓婂鏄撳鐝�(xi脿n)锛岄€犲児浣庡粔;鐞嗚珫涓婄瘈(ji茅)榛炴暩(sh霉)鐒¢檺鍒讹紝灏嶇挵(hu谩n)澧冮浕纾佽蓟灏勬湁涓€瀹氭姂鍒惰兘鍔�銆備絾闅ㄨ憲闋荤巼鐨勫闀�锛岄洐绲炵窔绶氬皪鐨勮“娓涜繀閫熷澶�;闆欑禐绶氶倓鏈夋墍璎傝繎绔覆?d膩ng)_锛屽嵆鍦�"鐧�(f膩)閫佺窔灏�"鍜�"鎺ユ敹绶氬皪"涔嬮枔浠斿湪闆荤鑰﹀悎骞叉摼銆傚彟澶�锛岄洐绲炵窔鐨勫偝杓搁€熺巼鍙楄窛闆㈤檺鍒舵瘮杓冨ぇ銆傞€欎簺缂洪櫡浣垮緱CAN绺界窔涓嶅疁鍦ㄥ挤骞叉摼銆侀珮閫熺巼銆侀仩璺濋洟鐨勫牬鍚堜笅浣跨敤闆欑禐绶氫綔鐐哄偝杓镐粙璩�(zh矛)銆�
銆€銆€1.2 CAN绺界窔鍏夌簴鍌宠几
銆€銆€CAN鍗�(xi茅)璀版敮鎸佸厜绾栦綔鐐哄偝杓镐粙璩�(zh矛)锛屼絾鏄敱浜嶤AN绺界窔缍�(w菐ng)绲�(lu貌)涓€鑸噰鐢ㄧ附绶氬瀷绲�(ji茅)妲�(g貌u)锛屽苟涓斿叾绺界窔浠茶閲囧彇鐨勬槸鍏锋湁鍎�(y艒u)鍏堢礆鐨勯潪鐮村鎬SMA锛堣級娉㈠伒鑱藉璺í鍟忥級锛岃€屽厜绾栦俊铏熺殑鍌宠几鍓囨槸鍠悜鐨勶紝鍥犳鏈€绨″柈瀵︾敤鐨勬柟娉曟槸鍦ㄦ煇浜涚附绶氭敮璺笂閲囩敤鍏夌簴浠嬭唱(zh矛)锛屾暣鍊婥AN缍�(w菐ng)绲�(lu貌)鐐洪洐绲炵窔鍜屽厜绾栧叐绋偝杓镐粙璩�(zh矛)娣峰悎浣跨敤鐨勬柟寮忋€傜祼(ji茅)妲�(g貌u)濡傚湒2鎵€绀�銆�
銆€銆€浣滅偤鍌宠几浠嬭唱(zh矛)锛屽厜绾栧湪鎶楀共鎿炬€�銆佸偝杓稿閲�銆侀€熺巼绛夋柟闈㈠叿鏈夎ū澶氭瘮闆欑禐绶氬劒(y艒u)鑹殑鐗规€�銆傚洜姝�锛屽湪鏌愪簺鐠�(hu谩n)澧冩儭鍔�銆佸湴鐞嗗垎甯冭寖鍦嶈純寤�銆侀€熺巼瑕佹眰杓冮珮鐨凜AN绺界窔绯荤当(t菕ng)涓紝鍙互鍦ㄧ浉鎳�(y墨ng)鐨勬敮璺笂浣跨敤鍏夌簴鍌宠几锛屽緸鑰屼繚璀夋暣鍊婥AN缍�(w菐ng)绲�(lu貌)鐨勬€ц兘銆�
2 鍏夌簴鍌宠几鎺ュ彛瀵︾従(xi脿n)鏂规
銆€銆€2.1 鍏夌簴鏀剁櫦(f膩)妯″鐨勯伕鐢�
銆€銆€瀵︾従(xi脿n)鍏夌簴鍌宠几?sh霉)鍥婄矉鈧噸瑕佺挵(hu谩n)绡€(ji茅)灏辨槸瀹屾垚绺界窔淇¤櫉鐨勫厜闆昏綁(zhu菐n)鎻涳紝鍙互浣跨敤灏堢敤鐨勫厜绾栨敹鐧�(f膩)鍣ㄤ欢銆傜洰鍓�锛屽厜绾栨敹鐧�(f膩)鍣ㄦ湁鍏╃ó椤炲瀷锛氫竴绋槸鍩轰簬鍒嗙珛鍏冧欢鐨�锛屽嵆鍏夋帴鏀跺拰鍏夌櫦(f膩)閫佹ā濉婃槸鐛ㄧ珛鐨勩€傞€欑ó鍏夋敹鐧�(f膩)妯″鐩稿皪姣旇純绨″柈锛屽厜鐧�(f膩)灏勯儴鍒嗕富瑕佺敱鍏夋簮鍜屽亸缃帶鍒堕浕璺祫鎴�;鍏夋帴鏀堕儴鍒嗕富瑕佺敱鍏夋帰娓櫒銆佹暣褰㈡斁澶ч浕璺祫鎴�锛屼竴鑸噰鐢ㄥ鏂欐垨澶氭ā鍏夌簴閫茶鍌宠几銆傚彟涓€绋槸鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉�锛屽畠鍦ㄥ厜婧愩€佸厜鎺㈡脯銆佸厜鍣ㄤ欢灏佽銆侀﹨(q奴)鍕曢泦鎴愰浕璺�銆佹斁澶ч泦鎴愰浕璺妧琛�(sh霉)閫叉鐨勫熀绀�(ch菙)涓�锛屽皣鎺ユ敹鍜岀櫦(f膩)閫侀泦鎴愬埌涓€璧�銆佺鍚堥浕淇″偝杓告婧栫殑鍏夐浕瀛愮郴绲�(t菕ng);鍦ㄥ厜鐧�(f膩)灏勯儴鍒嗕娇鐢╮鎬ц兘鏇村ソ鐨勫厜婧愶紝骞跺湪鎺ユ敹閮ㄥ垎鍔犲叆浜嗘檪閻樺強鍐嶇敓鍒ゆ焙闆昏矾绛�锛屼竴鑸噰鐢ㄥ柈妯″厜绾栭€茶鍌宠几銆傚洜姝�锛屽厜绾栨敹鐧�(f膩)涓€楂旀ā濉婂湪淇¤櫉杞�(zhu菐n)鎻涚殑閫熺巼鍜岀┅(w臎n)瀹氭€т笂閮芥瘮鍒嗙珛鐨勫厜绾栨敹鐧�(f膩)鍣ㄤ欢鏈夊緢澶х殑鎻愰珮锛岃€屼笖鑸囧鍦嶅櫒浠舵帴鍙f柟渚�锛屽柈妯″厜绾栫殑鑹叉暎銆佸偝杓稿厜鍔熺巼娑堣€椾篃姣斿妯″厜绾栧皬銆�
銆€銆€鏈ō(sh猫)瑷堜腑閬哥敤涓€娆綯TL鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉�锛屾婧栧伐妤�(y猫)鐢╨脳9寮曡叧锛屽柈+5V闆绘簮渚涢浕锛屽厜绾栧偝杓告ā寮忕偤鍠ā锛屾婧朣T-ST鍏夌簴鎺ュ彛銆傝┎妯″椹�(q奴)鍕曟帴鍙e鍦�3鎵€绀�銆�
銆€銆€

銆€銆€2.2 瑷�(sh猫)瑷堟柟妗�
銆€銆€鐢变簬鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉婁腑鍚湁鏅傞悩鎻愬彇闆昏矾锛岃姹傛墍杞�(zhu菐n)鎻涚殑淇¤櫉娴佽鍚湁璞愬瘜鐨勬檪閻樹俊鎭�锛屼互渚挎檪閻樻彁鍙栭浕璺簴纰哄湴鎹曠嵅淇¤櫉鐨勯牷鐜囷紝鍥犳淇¤櫉娴佷腑涓嶅疁鍖呭惈杓冮暦鐨勯€�"1"鎴栭€�"0"銆傝€孋AN绺界窔鍦ㄧ┖闁戜互鍙婄櫦(f膩)閫佹煇浜涢鍨嬪箑鏅傛渻鍑虹従(xi脿n)姣旇純闀风殑閫�"1"鎴栭€�"0"锛屽挨鍏跺湪閫氫俊娉㈢壒鐜囨瘮杓冧綆鐨勬儏娉佷笅锛岄€g簩(x霉)鐩稿悓闆诲钩鐨勬檪闁撳氨鏈冭秺闀�锛岄€欏皣鏈冨皫(d菐o)鑷存帴鏀跺櫒鎹曠嵅涓嶅埌淇¤櫉娴佺殑婧栫⒑娉㈢壒鐜�锛屽緸鑰屽皫(d菐o)鑷村厜闆昏綁(zhu菐n)鎻涘悗鐨勪俊铏熺殑浣嶆檪闁撲笉婧栫⒑鐢氳嚦閷銆傚洜姝わ紝灏辫姹傚皪寰呰綁(zhu菐n)鎻涚殑CAN淇¤櫉娴侀€茶闋�(y霉)鍏堣檿鐞�銆傛渶甯哥敤鐨勬柟娉曞氨鏄€茶绶ㄧ⒓锛岀法纰煎悗鐨勪俊铏熸祦涓寘鍚睈瀵岀殑鏅傞悩淇℃伅锛屼笉鏈冨嚭鐝�(xi脿n)杓冮暦鐨勯€�"1"鎴栭€�"0"锛岀稉(j墨ng)閬庡厜绾栧偝杓稿悗鍐嶉€茶瑙g⒓閭勫師銆備篃灏辨槸瑾�锛屽湪CAN鎺у埗鍣�銆侀﹨(q奴)鍕曞櫒鑸囧厜闆昏綁(zhu菐n)鎻涙ā濉婁箣闁撳鍔犱竴鍊嬬法瑙g⒓鍣�銆�
銆€銆€鎿�(j霉)姝ゆ彁鍑轰竴绋熀浜嶤AN绺界窔鎺у埗鍣⊿JA1000鍜屽厜绾栨敹鐧�(f膩)涓€楂旀ā濉婄殑CAN绺界窔鍏夌簴鍌宠几鎺ュ彛鏂规锛屽叾绲�(ji茅)妲�(g貌u)濡傚湒4鎵€绀�銆�

銆€銆€鎺ュ彛鍒嗙偤鐧�(f膩)閫佺鍜屾帴鏀剁銆傜櫦(f膩)閫佺鐢盋AN绺界窔鎺у埗鍣⊿JA1000銆佷俊铏熺法瑙g⒓鍣ㄥ拰鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉婄祫鎴�;鎺ユ敹绔敱CAN绺界窔椹�(q奴)鍕曞櫒PCA82C250銆佷俊铏熺法瑙g⒓鍣ㄥ拰鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉婄祫鎴愩€侰AN绡€(ji茅)榛炲悜绺界窔鐧�(f膩)閫佹暩(sh霉)鎿�(j霉)鏅�锛岀櫦(f膩)閫佺绺界窔鎺у埗鍣⊿JA1000鐨勭櫦(f膩)閫佷俊铏烼X缍�(j墨ng)绶ㄧ⒓鍣ㄩ€茶绶ㄧ⒓涔嬪悗锛岄€佽嚦鍏夌簴鏀剁櫦(f膩)涓€楂旀ā濉婇€茶淇¤櫉鐨勯浕涓€鍏夎綁(zhu菐n)鎻�锛岀劧鍚庨€氶亷鍏夌簴鍌宠几?sh霉)绔璤鎺ユ敹绔疪X;鎺ユ敹绔厜绾栨敹鐧�(f膩)涓€楂旀ā濉婂厛灏嶆敹鍒扮殑鍏変俊铏熼€茶鍏変竴闆昏綁(zhu菐n)鎻涳紝鍐嶇敱瑙g⒓鍣ㄥ皣绶ㄧ⒓淇¤櫉閭勫師锛屾渶鍚庨€氶亷绺界窔椹�(q奴)鍕曞櫒PCA82C250鑸囩附绶氶€f帴锛屽畬鎴愭暩(sh霉)鎿�(j霉)鐧�(f膩)閫侀亷绋�銆傛暩(sh霉)鎿�(j霉)鎺ユ敹閬庣▼鍚岀悊銆�
3 鍏夐浕杞�(zhu菐n)鎻涚法纰笺€佽В纰煎櫒瑷�(sh猫)瑷�
銆€銆€3.1 CAN绺界窔浠茶姗熷埗灏嶇法瑙g⒓鏂规鐨勮姹�
銆€銆€CAN绺界窔鐨勯潪鐮村鎬х附绶氫徊瑁佹鍒剁殑鍘熺悊鐐猴細鐣�(d膩ng)绺界窔绌洪枒鏅�锛屼换浣曞柈鍏冨潎鍙櫦(f膩)閫佸牨鏂�;鑻ュ悓鏅傛湁2鍊嬫垨鏇村鐨勭瘈(ji茅)榛為枊濮嬬櫦(f膩)閫佸牨鏂囷紝鍓囨渻鍑虹従(xi脿n)绺界窔娌栫獊銆傚皪浜庣附绶氳í鍟忔矕绐�锛屽彲鍊熷姪浜庢璀樼ID閫茶閫愪綅浠茶鍔犱互瑙f焙銆備徊瑁佹湡闁�锛屾瘡鍊嬬櫦(f膩)閫佸櫒灏囩櫦(f膩)閫佷綅闆诲钩鍚岀附绶氫笂妾㈡脯鍒扮殑闆诲钩閫茶姣旇純锛氳嫢鐩哥瓑锛屽墖绡€(ji茅)榛炵辜绾�(x霉)鐧�(f膩)閫�;鑻ヤ笉鐩哥瓑锛屽墖琛ㄦ槑绡€(ji茅)榛炲け鍘讳徊瑁�锛屽仠姝㈠牨鏂囩櫦(f膩)閫併€傚彧鏈夌附绶氳í鍟忓劒(y艒u)鍏堟瑠(qu谩n)鏈€楂樼殑绡€(ji茅)榛炵辜绾�(x霉)鍫辨枃鐧�(f膩)閫�锛屽叾浠栧劒(y艒u)鍏堟瑠(qu谩n)杓冧綆鐨勭瘈(ji茅)榛炲け鍘讳徊瑁�锛屼富鍕曞仠姝㈠牨鏂囩櫦(f膩)閫�锛屽彧鏈夌暥(d膩ng)绺界窔绌洪枒鏅傛墠鑳界辜绾�(x霉)鍟熷嫊鍫辨枃鐧�(f膩)閫�銆傚洜姝わ紝CAN绡€(ji茅)榛炴瘡鐧�(f膩)閫佷竴浣嶆暩(sh霉)鎿�(j霉)閮借鐩�(ji膩n)鑱界附绶氫笂鐨勬暩(sh霉)鎿�(j霉)鏄惁鑸囨墍鐧�(f膩)閫佺殑涓€鑷�銆� 鍦ㄤ笉鑰冩叜淇¤櫉鍦ㄥ厜绾栦腑鍌宠几鏅傜殑琛版笡鍙奀AN绡€(ji茅)榛炶嚜韬檺鍒剁殑鍓嶆彁涓嬶紝鐐轰簡淇濊瓑CAN绺界窔閫氫俊鐨勬甯搁€茶锛屽湪CAN绺界窔鐨勯€氫俊閬庣▼涓繀闋堜繚璀変俊铏熷欢閬蹭笉鑳借秴閬嶤AN绺界窔鐨勫厑瑷卞€硷紝鑰岄€欎富瑕佹槸鐢盋AN绺界窔鐗╃悊灞ょ殑浣嶅畾鏅傚拰鍚屾鍔熻兘姹哄畾鐨�銆侰AN绺界窔鐨勪綅鏅傞枔琚畾缇╃偤涓€浣嶇殑鎸佺簩(x霉)鏅傞枔銆備竴鍊嬩綅鏅傞枔鍙妰鍒嗙偤4鍊嬩笉閲嶇枈鐨勬檪闁撴锛屽嵆鍚屾娈碉紙SYNC_SEG锛�銆佸偝鎾锛圥ROP_SEG锛�銆佺浉浣嶇珐娌栨1锛圥HASE_SEG1锛夊拰鐩镐綅绶╂矕娈�2锛圥HASE_SEG2锛�銆傚叾涓紝鍚屾娈电敤浜庡悓姝ョ附绶氫笂涓嶅悓鐨勭瘈(ji茅)榛�锛岄€欎竴娈靛収(n猫i)瑕佹湁涓€鍊嬭烦璁婃部;鍌虫挱娈电敤浜庤鍎熺恫(w菐ng)绲�(lu貌)鍏�(n猫i)鐨勭墿鐞嗗欢閬叉檪闁擄紙鍖呮嫭绺界窔涓婄殑淇¤櫉鍌虫挱鏅傞枔鍜岀瘈(ji茅)榛炵殑鍏�(n猫i)閮ㄥ欢閬叉檪闁擄級;鐩镐綅绶╂矕娈�1鍜岀浉浣嶇珐娌栨2鐢ㄤ簬瑁滃劅閭婃部闅庢鐨勮宸€傜敱浜嶤AN绺界窔涓悇鍊嬬瘈(ji茅)榛炵殑鏅傞悩鍙兘涓嶄竴鑷�锛屽洜姝ら渶瑕侀€茶閲嶆柊鍚屾銆傞噸鏂板悓姝ョ殑绲�(ji茅)鏋�锛屼娇鐩镐綅绶╂矕娈�1澧為暦锛屾垨浣跨浉浣嶇珐娌栨2绺煭锛屽収(n猫i)閮ㄧ殑浣嶆檪闁撳緸鍚屾娈甸噸鏂伴枊濮�銆傞噰妯i粸浣嶄簬鐩镐綅绶╂矕娈�1鐨勭祼(ji茅)鏉�锛屽湪閲囨ǎ榛炴檪鍒�锛孋AN绡€(ji茅)榛炶畝绺界窔闆诲钩銆傞€氶亷绶ㄧ▼閲囨ǎ榛炵殑浣嶇疆鍙互鍎�(y艒u)鍖栫附绶氬畾鏅�銆�
銆€銆€缍滀笂鎵€杩帮紝鍋囪ō(sh猫)淇¤櫉鍦ㄥ厜绾栦腑鐨勫偝杓告檪闁撶偤t鍌宠几锛屼俊铏熷偝杓镐腑鍥犲厜闆昏綁(zhu菐n)鎻涢€犳垚鐨勫欢閬叉檪闁撶偤t鍏夐浕寤堕伈锛孋AN绡€(ji茅)榛炲悓姝ュ強鍏�(n猫i)閮ㄥ欢閬茬偤t鍏�(n猫i)閮ㄥ欢閬诧紝鍓囨噳(y墨ng)婊胯冻浠ヤ笅闂�(gu膩n)绯伙細
銆€銆€t鍌宠几+t鍏夐浕寤堕伈+t鍏�(n猫i)閮ㄥ欢閬�
銆€銆€寮忎腑锛屽皪浜庣郸瀹氶暦搴﹀拰娉㈢壒鐜囷紝鍏夌簴鍌宠几鏅傞枔鍜岀瘈(ji茅)榛炲収(n猫i)閮ㄥ欢閬叉檪闁撴槸纰哄畾鐨�锛屽洜姝よ鐩¢噺绺煭鍏夐浕杞�(zhu菐n)鎻涚殑寤堕伈鏅傞枔锛屽嵆灏岰AN淇¤櫉绶ㄨВ纰肩畻娉曟彁鍑轰簡鐗规畩瑕佹眰锛岃鐩¢噺绺煭绶ㄨВ纰肩殑寤堕伈鏅傞枔銆�
銆€銆€3.2 绶ㄧ⒓銆佽В纰兼柟妗�
銆€銆€鍏夌簴鍌宠几涓父閲囩敤鐨勪俊铏熺法纰兼湁CMI纰笺€佹摼纰�銆�8B/10B纰肩瓑銆傞洊鐒堕€欎簺绶ㄧ⒓閮借兘鎻愪緵璞愬瘜鐨勬檪閻樹俊鎭�锛屼絾鏄敱浜嶤AN绺界窔鐨勭附绶氫徊瑁佹槸鍏锋湁鍎�(y艒u)鍏堢礆鐨勯潪鐮村鎬SMA锛岄€欏€嬬壒榛炴焙瀹氫簡淇¤櫉缍�(j墨ng)閬庣法瑙g⒓鍚庣殑寤堕伈瑕佺洝鍙兘寰楀皬銆傛彁鍑轰竴绋�1B/16B绶ㄧ⒓鏂规硶锛岀法銆佽В纰艰(gu墨)鍓囧涓嬶細
銆€銆€锛�1锛� 绶ㄧ⒓瑕�(gu墨)鍓�
銆€銆€閭忚集"1"鈥斺€�1110101010101010
銆€銆€閭忚集"0"鈥斺€�0001010101010101
銆€銆€鍏烽珨鍋氭硶鏄�锛岀敤鏄緟绶ㄧ⒓姣旂壒娴佹尝鐗圭巼16鍊嶇殑鏅傞悩闋荤巼灏嶅叾姣忎綅閫茶閲囨ǎ锛屾瘡涓€浣嶉噰妯�16娆�锛岀劧鍚庢牴鎿�(j霉)绱勫畾濂界殑绶ㄧ⒓瑕�(gu墨)鍓囬€茶绶ㄧ⒓銆傞€欐ǎ灏卞皣鍘熸瘮鐗规祦鐨勪竴浣嶇法纰兼垚鏂扮殑16浣嶅偝杓�锛屾瘡浣嶇殑闀峰害鏄師渚嗕綅鏅傞枔鐨�1/16锛岃€岀附鐨勪綅鏅傞枔涓嶈畩銆傜法纰煎悗鐨勪俊铏熶笉鏈冨嚭鐝�(xi脿n)杓冮暦鐨勯€�"1"鎴栭€�"0"锛堟渶闀风殑閫�"1"鎴栭€�"0"鐐�4浣嶏級銆�
銆€銆€锛�2锛� 瑙g⒓瑕�(gu墨)鍓�
銆€銆€閭忚集"1"鈥斺€旈€g簩(x霉)閲囨ǎ3鍊�"1"
銆€銆€閭忚集"0"鈥斺€旈€g簩(x霉)閲囨ǎ3鍊�"0"
銆€銆€鍏烽珨鍋氭硶鏄�锛岀敤鏄稉(j墨ng)绶ㄧ⒓鍚庢瘮鐗规祦娉㈢壒鐜�3鍊嶇殑鏅傞悩闋荤巼灏嶇法纰煎悗鐨勪俊铏熼€茶閲囨ǎ锛堝嵆涓€浣嶉噰3娆�锛屽彇2娆′互涓婁竴妯g殑浣滅偤鏈閲囨ǎ鏈€绲傜祼(ji茅)鏋滐級銆傚鏋滈€g簩(x霉)閲囧埌3鍊�"1"锛屽墖瑙g⒓杓稿嚭鐐�"1";濡傛灉閫g簩(x霉)閲囧埌3鍊�"0"锛屽墖瑙g⒓杓稿嚭鐐�"0"銆�
銆€銆€寰�1B/16B绶ㄧ⒓銆佽В纰兼柟娉曞彲浠ョ湅鍑�锛岀稉(j墨ng)閬庣法纰间箣鍚庯紝CAN淇¤櫉娴佷腑涓嶅瓨鍦ㄩ暦鏅傞枔鐨勭浉鍚岄浕骞充俊铏�锛屾湁璞愬瘜鐨勮烦璁婃部渚涙檪閻樻彁鍙栭浕璺崟鐛蹭俊铏熼牷鐜�;瑙g⒓鏅傚埄鐢ㄤ簡绶ㄧ⒓淇¤櫉娴佷腑鐨勭壒寰佺⒓锛屽嵆閫g簩(x霉)3鍊嬩互涓婄殑鐩稿悓闆诲钩淇¤櫉锛岄噰妯e埌閫g簩(x霉)鐨�3鍊�"1"鎴�3鍊�"0"灏卞緱鍒拌В纰肩祼(ji茅)鏋�銆傚闅涗笂锛岄噰鐢ㄩ€欑ó绶ㄨВ纰兼柟娉�锛屼竴浣嶇法鎴愮偤16浣嶅悗锛屽彧鏈夊墠3浣嶆槸鏈夌敤鐨勪俊鎭�锛屽叾浣欑殑閮芥槸鍐椾綑纰�;浣嗘槸閫欐ǎ鍋氬彲浠ョ府鐭法瑙g⒓鐨勫欢閬叉檪闁�锛屼互婊胯冻CAN绺界窔浠茶鐗规€х殑瑕佹眰銆�
銆€銆€3.3 绶ㄧ⒓銆佽В纰煎櫒鐨勫鐝�(xi脿n)
銆€銆€鏈ō(sh猫)瑷堜腑閲囩敤鍙法绋嬮倧杓櫒浠朵締瀵︾従(xi脿n)灏嶄俊铏熺殑绶ㄨВ纰�锛屽叿楂旈伕鐢ˋltera鍏徃鐨凢LEX10K10绯诲垪FPGA;杌熶欢闁嬬櫦(f膩)骞宠嚭浣跨敤鐨勬槸QuartusII 5.0鍜孧odelsim SE5.8锛堢涓夋柟浠跨湡宸ュ叿锛�;闁嬬櫦(f膩)瑾炶█浣跨敤纭欢鎻忚堪瑾炶█VHDL銆傜法纰笺€佽В纰煎櫒鐨勭‖浠堕倧杓祼(ji茅)妲�(g貌u)濡傚湒5鎵€绀�銆�

銆€銆€閭忚集鍔熻兘鐨勬尝褰豢鐪熺祼(ji茅)鏋滃鍦�6鎵€绀恒€�
4 瀵﹂椹楄瓑
銆€銆€閫氶亷鍏╁€婥AN绡€(ji茅)榛炵殑閫氫俊瀵﹂锛岄璀変簡瑭睠AN鍏夌簴鍌宠几鎺ュ彛鐨勬纰烘€�銆傚椹楀钩鑷虹祼(ji茅)妲�(g貌u)濡傚湒7鎵€绀恒€�
銆€銆€CAN閫氫俊绡€(ji茅)榛炰娇鐢ㄥ厜绾栦粙璩�(zh矛)锛岃垏USB-CAN閫氫俊绡€(ji茅)榛為€茶閫氫俊锛屽苟鍦≒C姗熶笂椤ず閫氫俊鎯呮硜銆傚湪CAN绺界窔鍚勬尝鐗圭巼涓嬮€茶浜嗗叐鍊嬬瘈(ji茅)榛炵殑鏀剁櫦(f膩)瀵﹂锛岀祼(ji茅)鏋滆瓑鏄庤┎CAN鍏夌簴鍌宠几鎺ュ彛鍘熺悊姝g⒑锛屽叿鏈夊彲琛屾€�銆傚椹楁脯寰椾俊铏熺法銆佽В纰间互鍙婂厜闆昏綁(zhu菐n)鎻涚殑寤舵檪鏅傞枔锛堝嵆t鍏夐浕寤堕伈锛�锛岃琛�1銆�
5 閲囩敤鍏夌簴灏岰AN绺界窔閫氫俊鎬ц兘鐨勬敼鍠�
銆€銆€涓嬮潰绲�(ji茅)鍚堜笂杩板厜闆昏綁(zhu菐n)鎻涘椹楁墍鐛插緱鐨勫椹楁暩(sh霉)鎿�(j霉)锛岀啊瑕佽◣璜栦竴涓嬬暥(d膩ng)浣跨敤鍏夌簴鏇夸唬闆欑禐绶氫綔鐐洪€氫俊浠嬭唱(zh矛)鍚�锛孋AN绺界窔鍦ㄩ€氫俊鎬ц兘涓婄殑鏀瑰杽銆�
銆€銆€鍦ㄧ郸瀹氭尝鐗圭巼涓嬶紝鍏夌簴鍌宠几?sh霉)娣栭捀h璺濋洟L鑸囦俊铏熷湪鍏夌簴涓殑鍌宠几鏅傞枔t鍌宠几涔嬮枔婊胯冻浠ヤ笅闂�(gu膩n)绯伙細
銆€銆€L=V鍏夌簴脳t鍌宠几
銆€銆€寮忎腑锛歏鍏夌簴鐐轰俊铏熷湪鍏夌簴涓殑鍌虫挱閫熷害銆傞浕纾佹尝鍦ㄤ粙璩�(zh矛)涓殑鍌虫挱閫熷害鐐篤=C/n锛圕鐐哄厜閫�锛宯鐐轰粙璩�(zh矛)鐨勬姌灏勭巼锛�锛屽厜鍦ㄥ厜绾栦腑鐨勫偝鎾€熷害杩戜技鐐�260 m/渭s锛岄浕纾佹尝鍦ㄩ洐绲炵窔涓殑鍌虫挱閫熺墷澶ц嚧鐐�200m/渭s銆傞€欓噷鍙杢鍏�(n猫i)閮ㄥ欢閬�=0.4脳t浣嶆檪闁�锛屽墖鍙互浼扮畻鍑哄厜绾栧偝杓告檪CAN绺界窔鐨勬渶澶ц窛闆�锛屽琛�2鎵€鍒�銆傞噰鐢ㄥ厜绾栦綔鐐哄偝杓镐粙璩�(zh矛)锛孋AN绺界窔鐨勬渶澶у偝杓歌窛闆㈣兘澶犳彁楂樼磩40%銆�
銆€銆€寰炶〃2涓彲浠ョ湅锛岀敱浜嶤AN绺界窔閫氫俊閫熺巼杓冧綆鍙婇潪鐮村鎬х附绶氫徊瑁佺殑鐗归粸锛屼娇鐢ㄥ厜绾栧偝杓镐粙璩�(zh矛)锛屽叾鍌宠几璺濋洟鐨勫鍔犲苟涓嶅崄鍒嗘槑椤�锛屾矑鑳藉厖鍒嗙櫦(f膩)鎻厜绾栧偝杓稿ぇ瀹归噺銆侀仩璺濋洟鐨勫劒(y艒u)鍕�銆備絾鏄娇鐢ㄥ厜绾栦粛鐒舵湁瀹冨法澶х殑娼涘姏锛�
銆€?銆佸剢鎹庤皾璇濇倍濮舵场妞涙稙蹇祃璀滃拰鍏夋尝鐨勯牷璀滅浉璺濈敋閬�锛屽畠涓嶆渻鐤婂姞鍒板厜淇¤櫉涓婃垨娣峰叆鍏変俊铏熶腑锛屼篃寰堥洠閫插叆鍏夌簴鑺収(n猫i)褰遍熆鍏変俊铏熺殑鍌抽€�銆傚洜姝�锛屽厜绾栭€氫俊绯荤当(t菕ng)鐗瑰垾閬╁悎浜庡湪鏈夊挤鐑堥浕纾佸共鎿剧殑鍦板崁(q奴)鎴栧牬鍚堜腑浣跨敤锛岃濡傞浕鍔涚郴绲�(t菕ng)銆侀浕姘e寲閻甸亾涓殑閫氫俊绯荤当(t菕ng)绛�銆�
銆€銆€鈶$敱浜庡厜绾栫殑涓昏鏉愭枡鐐轰簩姘у寲纭�锛屾墍浠ュ畠姣斾互閵呯偤鏉愭枡鐨勯浕绾滄姉鍖栧(xu茅)鑵愯潟鍜屾哀鍖栫瓑鐨勬€ц兘寮凤紝鍗冲厜绾栫殑鍖栧(xu茅)绌�(w臎n)瀹氭€уソ锛屽=鍛介暦锛岀壒鍒ラ仼瀹滃湪鏈夎厫铦曠殑鍗€(q奴)鍩燂紙濡傚寲宸ュ粻绛夛級浣跨敤銆�
銆€?銆侀厓楗玾鐨勫昂瀵稿皬锛岄噸閲忚紩锛屽洜姝�锛屽厜绾栭€氫俊绯荤当(t菕ng)鐗瑰垾閬╁悎鍦ㄤ竴浜涚┖闁撴湁闄愮殑鍦版柟浣跨敤锛屾瘮濡傝埞鑹�銆侀姗熴€佽粖杓�銆佺伀绠�銆佸皫(d菐o)褰堢瓑鍫村悎銆傞€欏湪鍦嬮槻杌嶄簨涓婃湁鍗佸垎閲嶈鐨勬剰缇�銆�
绲�(ji茅) 瑾�
銆€銆€CAN绺界窔鎳�(y墨ng)鐢ㄨ寖鍦嶇殑鏃ヨ定寤f硾锛岃兘澶犻仼鎳�(y墨ng)瓒婁締瓒婂京(f霉)闆滅殑鐠�(hu谩n)澧�锛岀壒鍒ユ槸涓€浜涘挤骞叉摼銆侀仩璺濋洟銆佸湴鐞嗗垎甯冧笉鍧囥€佸伐浣滅挵(hu谩n)澧冩儭鍔g殑鎳�(y墨ng)鐢ㄥ牬鍚�銆傚偝绲�(t菕ng)鐨勯洐绲炵窔宸蹭笉鑳芥豢瓒抽渶瑕�锛岄噰鐢ㄥ厜绾栦粙璩�(zh矛)涓嶄絾鑳借В姹洪€欎簺鍟忛锛岃€屼笖绲AN绺界窔鎳�(y墨ng)鐢ㄥ付渚嗘洿澶х殑闈堟椿鎬�銆傚鐝�(xi脿n)鍏夌簴鍌宠几?sh霉)鍥婄矉鈧棞(gu膩n)閸甸粸灏辨槸鍏夌簴鍌宠几鎺ュ彛鐨勮ō(sh猫)瑷�锛屾湰鏂囨彁鍑轰簡涓€绋熀浜庡厜绾栨敹鐧�(f膩)涓€楂旀ā濉婄殑鎺ュ彛鏂规鍙婂叾瀵︾従(xi脿n)锛屽苟閫氶亷瀵﹂椹楄瓑浜嗚ō(sh猫)瑷堢殑姝g⒑鎬�锛屽皪浜庡湪CAN绺界窔閫欐ǎ閫熺巼杓冧綆鐨勭従(xi脿n)鍫寸附绶氫腑浣跨敤鍏夌簴鍌宠几鍏锋湁涓€瀹氬鐢ㄥ児鍊笺€�