鏈枃閲囩敤闆绘(j墨)鎺у埗灏堢敤DSP鎺у埗鍣═MS320LF2407灏嶇劇鍒风洿娴侀浕鍕曟(j墨)鏅鸿兘鎺у埗绯荤当(t菕ng)閫�(j矛n)琛屼簡鍏ㄦ暩(sh霉)瀛楀寲瑷�(sh猫)瑷�(j矛)銆傜郸鍑轰簡绯荤当(t菕ng)瀵�(sh铆)鐝�(xi脿n)纭欢闆昏矾瑷�(sh猫)瑷�(j矛)鏂规锛屼粙绱逛簡鏁�(sh霉)鎿�(j霉)铏曠悊鏉垮拰鍔熺巼椹�(q奴)鍕曟澘鐨勪富瑕佸姛鑳芥ā濉婄殑瑷�(sh猫)瑷�(j矛)銆傞噰鐢–瑾炶█鍜屽尟绶ㄨ獮瑷€閫�(j矛n)琛屾贩鍜岀法绋�锛屽苟涓旈€氶亷浜嗕豢鐪熻(di脿o)瑭�銆� 1 寮曡█ 姘哥鐒″埛鐩存祦闆诲嫊姗�(j墨)鏄竴绋柊鍨嬮浕姗�(j墨)锛屽叾妲�(g貌u)鎴愮殑鎺у埗绯荤当(t菕ng)鍏锋湁楂旂⿳灏�銆佹晥鐜囬珮銆佺稉(j墨ng)婵�(j矛)鎬уソ绛夎澶氬劒(y艒u)榛�(di菐n)锛屾湁宸ㄥぇ鐨勭櫦(f膩)灞�?ji茅)鎽�?銆俆I鍏徃鐢熺敘(ch菐n)鐨勬暩(sh霉)瀛椾俊铏熻檿鐞嗗櫒鍏锋湁绮惧害楂樸€佸彲闈犳€у挤(qi谩ng)绛夊劒(y艒u)榛�(di菐n)锛孴MS320LF 2407 DSP鑳藉?q奴)宕縁(xi脿n)瀹屾暣鐨勭劇鍒风洿娴侀浕姗�(j墨)鎺у埗鍔熻兘銆傚苟鍙ぇ骞呯啊鍖栨帶鍒堕浕璺�锛岄檷浣庢垚鏈強澧炲姞绯荤当(t菕ng)鍙潬搴�銆傞噰鐢―SP浣滅偤涓绘帶鍒跺柈鍏冪殑闆绘(j墨)鎺у埗绯荤当(t菕ng)鐨勭‖浠惰ō(sh猫)瑷�(j矛)绨″柈銆傛湰鏂囦粙绱圭殑灏辨槸鍩轰簬鏁�(sh霉)瀛椾俊铏熻檿鐞嗗櫒TMS320LF2407姘哥鐒″埛鐩存祦闆诲嫊姗�(j墨)鏅鸿兘鎺у埗绯荤当(t菕ng)銆� 2 绺介珨鏂规瑷�(sh猫)瑷�(j矛) 鏈郴绲�(t菕ng)涓埄鐢―SP瀵�(sh铆)鐝�(xi脿n)姘哥鐒″埛鐩存祦闆诲嫊姗�(j墨)鐨勫叏鏁�(sh霉)瀛楅洐闁夌挵(hu谩n)鎺у埗銆傜郸瀹氳綁(zhu菐n)閫熻垏閫熷害鍙嶉閲忓舰鎴愬亸宸紝缍�(j墨ng)閫熷害瑾�(di脿o)绡€(ji茅)鍚庣敘(ch菐n)鐢熼浕娴佸弮鑰冮噺锛屽畠鑸囬浕娴佸弽楗嬮噺鐨勫亸宸稉(j墨ng)闆绘祦瑾�(di脿o)绡€(ji茅)鍚庡舰鎴怭WM鍗犵┖姣旂殑鎺у埗閲忥紝瀵�(sh铆)鐝�(xi脿n)闆诲嫊姗�(j墨)鐨勯€熷害鎺у埗銆傞浕娴佺殑鍙嶉鏄€氶亷妾㈡脯闆婚樆R涓婄殑澹撻檷渚嗗(sh铆)鐝�(xi脿n)鐨勩€傞€熷害鍙嶉鍓囨槸閫氶亷闇嶇埦浣嶇疆鍌虫劅鍣ㄨ几鍑虹殑浣嶇疆閲�锛岀稉(j墨ng)閬庤▓(j矛)绠楀緱鍒扮殑锛屽悓鏅備綅缃偝鎰熷櫒杓稿嚭鐨勪綅缃噺閭勭敤浜庢彌鐩告帶鍒�銆傜郴绲�(t菕ng)鐨勫師鐞嗘鍦栧鍦�1鎵€绀�銆� 2.1 TMS320LF2407 DSP鎺у埗鍣� TI鍏徃鐨凾MS320LF240x绯诲垪鏄皥闁€鐐烘帶鍒舵噳(y墨ng)鐢ㄥ拰鏁�(sh霉)瀛楅亱(y霉n)鍕曟帶鍒堕牁(l菒ng)鍩熻ō(sh猫)瑷�(j矛)鐨凞SP鎺у埗鍣�銆俆MS320 LF2407鑺墖浣滅偤DSP鎺у埗鍣�24x涓€鏃廡MS320LF24x绯诲垪鐨勬柊鎴愬摗锛屾槸TMS320C2000骞宠嚭涓嬬殑涓€绋畾榛�(di菐n)DSP鑺墖锛屽咕绋厛閫�(j矛n)鐨勫瑷�(sh猫)琚泦鎴愬埌鑺墖鍏�(n猫i)锛屽舰鎴愪簡鐪熸鐨勫柈鑺墖鎺у埗鍣紝鏄竴绋綆鎴愭湰锛屼綆鍔熻€�锛屽姛鑳藉挤(qi谩ng)澶х殑闆绘(j墨)閬�(y霉n)鍕曟暩(sh霉)瀛楀寲鎺у埗鍗囩礆鐢�(ch菐n)鍝�銆傚叾CPU鑺牳鐐�16浣�锛岄亱(y霉n)绠楅€熷害鏄�30MIPS銆� TMS320LF247鑺墖鍏�(n猫i)鍚�10浣嶅柈妤垫€ID杞�(zhu菐n)鎻涙ā濉�锛孉ID閲囨ǎ绺藉叡鏈�16鍊嬮€氶亾锛屾渶灏忚綁(zhu菐n)鎻涙檪闁撶偤500ns锛屽彲瀵�(sh铆)鐝�(xi脿n)灏嶉浕姗�(j墨)鐨勪笁鐩搁浕澹撻噰妯ｇ劇闇€閫�(j矛n)琛岀浉浣嶈(b菙)鍎�銆備絾鐢变簬鏄柈妤垫€х殑锛屾墍浠ュ皪浜ゆ祦閲囨ǎ鏅傝鍔犳彁鍗囬浕璺�锛屼娇浜ゆ祦淇¤櫉闆诲鑼冨湇鍦�0.3 V锝�3 V涔嬮枔銆�6璺剤瀵(di脿o)鍒禤WM杓稿嚭锛屽彲鐢ㄤ簬璁婇牷瑾�(di脿o)閫熺郴绲�(t菕ng)涓皪闆绘(j墨)鐨勬帶鍒躲€�3璺崟鐛插柈鍏僀AP锛屽彲鐢ㄤ簬绱€(j矛)閷勮剤娌栫殑瀵害锛屽緸鑰屽彲浠ョ偤FFT绠楁硶鎻愪緵鏅傞枔鍩烘簴(zh菙n)浠ュ強鑸囪綁(zhu菐n)閫熸脯閲忕敤鐨勫厜鏌电法纰煎櫒鎺ュ彛锛屼互娓噺闆绘(j墨)杞�(zhu菐n)閫熴€� 2.2 浣嶇疆妾㈡脯 鍏夐浕绶ㄧ⒓鍣ㄥ彲浠ョ敤渚嗘脯閲忎竴鍊嬫棆杞�(zhu菐n)瑷�(sh猫)鍌欑殑浣嶇疆锛屽皣鍏跺浐瀹氬湪鏃嬭綁(zhu菐n)杌镐笂锛岀⒓鐩ょ殑涓€鍋�(c猫)鏄厜婧�锛屽彟涓€鍋�(c猫)鏄厜闆绘帴鍙楀櫒銆傜暥(d膩ng)绶ㄧ⒓鍣ㄩ毃鏃嬭綁(zhu菐n)姗�(j墨)姊版棆杞�(zhu菐n)鏅�锛屽湪鍏夐浕鎺ュ彈鍣ㄤ笂鍒嗗垾鐢�(ch菐n)鐢烝鐩革紙鐢卞収(n猫i)鍦堢敘(ch菐n)鐢燂級鍜孊鐩革紙鐢卞鍦堢敘(ch菐n)鐢燂級鑴堟矕娉�銆傛牴鎿�(j霉)A鐩稿拰B鐩搁€欏叐鍊嬭剤娌栨尝鐨勪綅缃拰鏅傞枔淇℃伅锛屼究鍙互纰哄畾鏃嬭綁(zhu菐n)姗�(j墨)妲�(g貌u)鐨勯€熷害銆佸姞閫熷害鍜岃綁(zhu菐n)鍚�銆� 鐣�(d膩ng)纰肩洡鍣ㄩ爢鏅傞嚌杞�(zhu菐n)鍕曟檪锛孊鐩歌剤娌栫殑鍓嶆部瓒呭墠A鐩�;閫嗘檪閲濊綁(zhu菐n)鍕曟檪A鐩哥殑鍓嶆部瓒呭墠B鐩�銆侫鐩稿拰B鐩哥殑淇¤櫉鐢盌SP鐨凜AP/QEP寮曡叧鎹曠嵅杓稿叆銆� 2.3 閫熷害妾㈡脯 鍒╃敤鍏夐浕绶ㄧ⒓鍣ㄧ殑妾㈡脯淇¤櫉锛岀敱DSP瑷�(j矛)绠楀嚭闆绘(j墨)杞�(zhu菐n)閫�?锛熸ⅱ鎰块稌?j霉)DSP鐨凜AP/QEP寮曡叧鎹� 鐛茬殑A鐩稿拰B鐩哥殑淇¤櫉锛屾牴鎿�(j霉)浠绘剰涓€鐩镐俊铏熺殑涓婂崌娌垮強涓嬮檷娌挎墍灏嶆噳(y墨ng)鐨勬檪闁撳€煎彲浠ユ柟渚跨殑瑷�(j矛)绠楀嚭閫熷害鍊�銆備篃鍙互鏍规摎(j霉)妾㈡脯鍒扮殑鍦ㄥ浐瀹氭檪闁撳収(n猫i)鐨勮剤娌栨暩(sh霉)锛岃垏鍥哄畾鏅傞枔涔嬫瘮鍗崇偤闆绘(j墨)鐨勯€熷害鍊�銆� 閫熷害瑷�(j矛)绠楀拰閫熷害瑾�(di脿o)绡€(ji茅)鎵€浣跨敤鐨勫弮鏁�(sh霉)瀛樻斁鍦ㄦ暩(sh霉)鎿�(j霉)鍗€(q奴)300H闁嬪鐨�6鍊嬪柈鍏冧腑锛孉R2浣滅偤鏁�(sh霉)鎿�(j霉)鐨勫湴鍧€鎸囬嚌銆傚悇鍠厓瀛樻斁鐨勮畩閲忓琛�1鎵€鍒�銆� 2.4 闆绘祦妾㈡脯 闆绘祦鍌虫劅鍣ㄦ槸浼烘湇绯荤当(t菕ng)涓殑涓€鍊嬮噸瑕佸厓浠躲€傚畠鐨勭簿搴﹀拰鍕曟厠(t脿i)鎬ц兘鐩存帴褰遍熆钁楃郴绲�(t菕ng)鐨勪綆閫熸€ц兘鍜屽揩閫熸€�銆傞浕娴佹娓殑鏂规硶鏈夐浕闃绘娓紝鍏夎€︽娓瓑鍚勭ó涓嶅悓鐨勬柟娉�锛屾湰绯荤当(t菕ng)閲囩敤纾佸钩琛″師鐞嗗(sh铆)鐝�(xi脿n)鐨勯湇鐖惧厓浠舵娓浕娴佺殑鏂规硶銆傛墍鐢ㄥ櫒浠剁偤闇嶇埦鏁堟噳(y墨ng)纾佸牬瑁�(b菙)鍎熷紡闆绘祦鍌虫劅鍣�銆傚畠鏄湅闅涗笂鎺ㄨ枽鐐洪浕鍔涢浕瀛愮窔璺腑鐨勯棞(gu膩n)閸甸浕娴佹娓櫒浠�銆傚畠鎶婁簰鎰熷櫒銆佺鏀惧ぇ鍣�銆侀湇鐖惧厓浠跺拰闆诲瓙绶氳矾鐨勬€濇兂闆嗘垚涓€楂斻€傚叿鏈夋脯閲�銆佸弽楗�銆佷繚璀�(h霉)涓夐噸鍔熻兘銆� 瀹冨(sh铆)闅涗笂鏄湁婧愰浕娴佷簰鎰熷櫒锛屽畠鐨勫劒(y艒u)榛�(di菐n)鏄€滅鍫磋(b菙)鍎熲€�锛岃娓噺鐨勫師閭婄鍫村悓娓噺绻炵祫閲岀殑娓噺纾佸嫝锛屽(sh铆)鏅傝(b菙)鍎熺偤闆�锛屼篃灏辨槸瑾紝閻佃姱閲屽(sh铆)闅涗笂娌掓湁纾侀€�锛屽洜鑰屽叾楂旂⿳鍙互鍋氬緱寰堝皬锛岃€屼笉鎬曟湁閻佃姱椋藉拰锛屼笉鐢ㄦ摂(d膩n)蹇冮牷鐜囥€佽娉㈠奖闊�銆備箣鎵€浠ヤ簩鑰呯殑纾佸嫝鑳借鍏呭垎瑁�(b菙)鍎�锛屾槸鐢变簬闇嶇埦鏁堟噳(y墨ng)鐨勪綔鐢�銆備竴鏃︿簩鑰呬笉骞宠　锛岄湇鐖惧厓浠朵笂灏辨渻鏈夐湇鐖鹃浕鍕曞嫝鐢�(ch菐n)鐢�銆傚畠灏变綔鐐轰互卤15V渚涢浕鐨勫樊鍒嗘斁澶у櫒杓稿叆淇¤櫉锛屾斁澶у櫒鐨勮几鍑洪浕娴佸嵆鐐哄偝鎰熷櫒鐨勬脯閲忛浕娴�锛岃嚜鍕曡繀閫熷湴鎭㈠京(f霉)纾佸嫝骞宠　锛屽嵆闇嶇埦杓稿嚭绺戒繚鎸佺偤闆�銆傞€欐ǎ闆绘祦鐨勬尝褰㈠繝瀵�(sh铆)鐨勫弽鏄犲師閭婅娓浕娴佺殑娉㈠舰锛屽彧鏄竴鍊嬪対姣旂殑闂�(gu膩n)绯�銆� 3 纭欢绯荤当(t菕ng)瑷�(sh猫)瑷�(j矛) 鏍规摎(j霉)绯荤当(t菕ng)瑷�(sh猫)瑷�(j矛)鏂规锛岀郴绲�(t菕ng)鐨勬帶鍒堕儴鍒嗙‖浠跺彲浠ョ敱鍏╁鍗板埛鏉挎(g貌u)鎴�锛屽嵆鏁�(sh霉)鎿�(j霉)铏曠悊鏉垮拰鍔熺巼椹�(q奴)鍕曟澘锛岀祼(ji茅)妲�(g貌u)濡傚湒2鎵€绀�銆傛暩(sh霉)鎿�(j霉)铏曠悊鏉块€�(j矛n)琛孉ID鏁�(sh霉)鎿�(j霉)璁€鍏�锛屼覆鍙ｆ暩(sh霉)鎿�(j霉)璁€鍏ワ紝鎺у埗绠楁硶鐨勯亱(y霉n)绠�锛孭WM娉㈠舰杓稿嚭绛�銆傝€屽姛鐜囬﹨(q奴)鍕曟澘鍓囬€�(j矛n)琛岄浕姗�(j墨)涓夌浉绔浕澹撻噰妯�锛岄浕娴侀噰妯�锛岄€�(j矛n)琛屾烤娉㈠垎澹撹檿鐞�锛屼笖灏嶅叚璺疨WM杓稿嚭淇¤櫉閫�(j矛n)琛屾斁澶�锛屼互椹�(q奴)鍕曞姛鐜囧櫒浠�銆侱SP鑺墖鐨勫叚璺疨WM鍙ｈ几鍑轰笁鐩镐簰宸�120掳瑙掑害鐨勬柟娉㈤浕娴侊紝PWM杓稿嚭淇¤櫉缍�(j墨ng)閬庣簿瀵嗙窔鎬у厜闅旂郸鍔熺巼MOS绠￠﹨(q奴)鍕曢浕璺�锛屼締椹�(q奴)鍕曞姛鐜嘙OS鍣ㄤ欢锛屽苟鐢卞叚鐗囧姛鐜嘙OS绠￠﹨(q奴)鍕曢浕姗�(j墨)銆傚叐濉婂嵃鍒锋澘涔嬮枔閫氶亷闆欐帓34鑺浕绾滈€ｆ帴锛屽垎鍒ュ偝杓窤ID閲囨ǎ淇¤櫉鍜孭WM杓稿嚭淇¤櫉銆� 鏁�(sh霉)鎿�(j霉)铏曠悊鏉夸互TI鍏徃鐨凾MS320LF2407DSP鎺у埗鍣ㄧ偤鏍稿績銆傝┎DSP鎺у埗鍣ㄩ厤缃湁鍏╁€嬪付閲囨ǎ淇濇寔鐨�8璺�10浣嶇殑AID杞�(zhu菐n)鎻涘櫒锛屽叾鏈€灏忚綁(zhu菐n)鎻涙檪闁撶偤500ns锛屽彲浠ュ強鏅傜殑灏嶄笁鐩哥闆诲鍜岄浕娴侀€�(j矛n)琛岄噰妯�銆傛澘涓婃彁渚�20MHz鐨勬湁婧愭櫠鎸�銆傛暩(sh霉)鎿�(j霉)铏曠悊鏉夸笂鐨凧TAG鍙ｈ垏鎻掑湪瑷�(j矛)绠楁(j墨)涓绘澘涓婄殑XDS510鏉垮崱鐩搁€�锛岃▓(j矛)绠楁(j墨)鍙互鍦ㄧ窔鐨勪笅杓夎(di脿o)瑭︾▼搴忥紝閫欐ǎ鍙互澶уぇ鐨勬彁楂樺伐浣滄晥鐜�锛岀府鐭枊鐧�(f膩)鍛ㄦ湡銆傚湪鏁�(sh霉)鎿�(j霉)鏉夸笂閭勮ō(sh猫)瑷�(j矛)浜哛S232鎺ュ彛锛岄€氶亷涓茶鏁�(sh霉)鎿�(j霉)闆荤簻锛岀敱瑷�(j矛)绠楁(j墨)鍙互灏嶉浕姗�(j墨)閫�(j矛n)琛岄仩(yu菐n)绋嬫帶鍒�銆傛澘涓奡RAM鐐洪潨鎱�(t脿i)RAM鑺墖鈥擨S61C1024-15,128K脳8浣�锛岀敤渚嗗瓨鍎茬▼搴忓拰绔嬪嵆鎿嶄綔鏁�(sh霉)銆係RAM鑺墖鏄編鍦嬬熃鎴愬叕鍙革紙ISSI锛夌殑锛屽瓨鍙栨檪闁撶偤15ns锛屽彲浠ュ拰DSP閰嶅悎浣跨敤銆侴AL鏄疉MD鍏徃鐨勫彲绶ㄧ▼閭忚集闄ｅ垪鍣ㄤ欢锛屽皪鐗囧SRAM鐨勯伕鍧€銆佺墖閬哥瓑璀⒓浣滅敤銆傜偤浠ュ悗鏀归€�(j矛n)鎴栧崌绱�锛岃ō(sh猫)瑷�(j矛)鏈変竴浜涙摯(ku貌)灞曟帴鍙�锛屽鏁�(sh霉)鎿�(j霉)鍜屽湴鍧€绶氭帴鍙ｇ瓑銆� 鍔熺巼椹�(q奴)鍕曟澘涓婂寘鍚姛鐜囬€嗚畩鍣ㄩ浕璺�銆丮OSFET绠″墠绱氶﹨(q奴)鍕曢浕璺�銆佸厜绂嶉浕璺€佺闆诲鍙婇浕娴丄ID閲囨ǎ闆昏矾銆傜劇鍒风洿娴侀浕姗�(j墨)鐨勯﹨(q奴)鍕曢浕璺噰鐢ㄤ笁鐩告⿱寮忓叏鎺ч浕璺�锛孊LDC鐨勫畾瀛愮篂绲勭偤Y鍨嬮€ｆ帴锛岄浕姗�(j墨)鐨勬サ灏嶆暩(sh霉)鐐�2銆傞€嗚畩鍣ㄩ噰鐢ㄧ敱鍏墖N婧濋亾MOSFET绠♀€斺€擨RFZ44N妲�(g貌u)鎴愮殑涓婁笅姗嬪紡椹�(q奴)鍕曢浕璺�銆� 4 杌熶欢绯荤当(t菕ng)瑷�(sh猫)瑷�(j矛) 鏁村€嬫帶鍒剁郴绲�(t菕ng)杌熶欢閲囩敤妯″鍖栬ō(sh猫)瑷�(j矛)鎬濇兂锛岀鍚堢暥(d膩ng)鍓嶈嚜涓婅€屼笅鐨勪富娴佽ō(sh猫)瑷�(j矛)鎬濇兂銆傛湰绯荤当(t菕ng)涓�锛孋PU鏅傞悩闋荤巼鐐�20MHz锛孭WM闋荤巼鐐�20kHz銆傞€氶亷瀹氭檪鍣�1鍛ㄦ湡鍖归厤浜嬩欢鍟熷嫊ADC杞�(zhu菐n)鎻�锛屼娇姣忓€婸WM鍛ㄦ湡閮藉皪闆绘祦閫�(j矛n)琛屼竴娆￠噰妯ｏ紝骞跺湪A/D杞�(zhu菐n)鎻涗腑鏂疯檿鐞嗙▼搴忎腑灏嶉浕娴侀€�(j矛n)琛岃(di脿o)绡€(ji茅)锛屼締鎺у埗PWM杓稿嚭銆傝綁(zhu菐n)瀛愭瘡杞�(zhu菐n)閬�60掳姗�(j墨)姊拌閮借Ц鐧�(f膩)涓€娆℃崟鎹変腑鏂凤紝閫�(j矛n)琛屾彌鐩告搷浣滃拰閫熷害瑷�(j矛)绠�銆傜郴绲�(t菕ng)鐨勪富绋嬪簭娴佺▼鍦栧鍦�3鎵€绀恒€� 5 浠跨湡绲�(ji茅)鏋� 鏈枃灏嶇郴绲�(t菕ng)閫�(j矛n)琛屼簡妯＄硦鎺у埗浠跨湡锛岄€熷害绲﹀畾璺宠畩闊挎噳(y墨ng)鏇茬窔濡傚湒4鍜屽湒5 鎵€绀恒€� 6 绲�(ji茅)鏉熻獮 鐢变豢鐪熺祼(ji茅)鏋滃彲浠ョ湅鍑�锛岀暥(d膩ng)绲﹀畾閫熷害璺宠畩鏅傦紝绯荤当(t菕ng)鑳藉蹇€熼熆鎳�(y墨ng)銆傝綁(zhu菐n)鐭╁拰闆绘祦娉㈠嫊杓冨皬锛岃€屼笖鍦ㄨ綁(zhu菐n)閫熻烦璁婄殑鏅傚€�锛岃兘澶犲揩閫熼仈(d谩)鍒扮┅(w臎n)瀹�锛涢潨鎱�(t脿i)瑾ゅ樊灏�锛屽叿鏈夊緢濂界殑闈滄厠(t脿i)鍜屽嫊鎱�(t脿i)鎬ц兘銆� 绗簩灞嗕己鏈嶈垏閬�(y霉n)鍕曟帶鍒惰珫澹囪珫鏂囬泦 绗笁灞嗕己鏈嶈垏閬�(y霉n)鍕曟帶鍒惰珫澹囪珫鏂囬泦