銆愬皣宓屽叆寮忔摯灞曟妧琛撶郴绲�(t菕ng)鎳夌敤浜庣墿娴佺洡榛濸DA鐒＄窔绲傜瑷▓鏂规瑭宠В銆戝鎶€琛撶殑閫叉甯朵締浜嗙墿娴佹キ(y猫)鐨勫法澶ц畩鍖�锛屽緸姗熸鍖栧悜鑷嫊鍖�銆佹櫤鑳藉寲鐧�(f膩)灞�銆傛垜鍦嬬墿娴佹キ(y猫)璧锋杓冩櫄锛岀洰鍓嶉倓铏曚簬浜哄伐绠＄悊鎴栧崐鑷嫊绠＄悊鐙€鎱�(t脿i)锛屾晥鐜囦笉楂�銆傞毃钁楃墿娴佹キ(y猫)鐨勭櫦(f膩)灞曪紝鍊夊劜瑕�(gu墨)妯′笉鏂锋摯澶�锛岃波鐗╃ó椤炰笉鏂峰澶氾紝甯朵締涓€绯诲垪閫ｉ帠鍙嶆噳锛屽皫鑷村偝绲�(t菕ng)鐨勭墿娴佹キ(y猫)鏃ユ几鍚冨姏銆�

宓屽叆寮忔摯灞曟妧琛撶殑鐧�(f膩)灞曞彲鐐虹墿娴丮A鎺у埗闋樺煙鎻愪緵寮峰ぇ闈堟椿鐨勮В姹烘柟妗�銆傛湰鏂囩爺绌舵柟妗堝皣宓屽叆寮忔摯灞曟妧琛撶郴绲�(t菕ng)鎳夌敤浜庣墿娴佹帶鍒堕牁鍩燂紝閲囩敤宓屽叆寮忚檿鐞嗗櫒浠ュ強璞愬瘜鐨勫鍦嶆摯灞曟帴鍙�锛岄厤浠ユ恫鏅惰Ц鎽稿睆锛屽鐝句簡浜烘浜や簰銆傜祼鍚堟纰奸噰闆嗗櫒锛屽鐝惧鏅傞噰闆嗘暩鎿氫俊鎭�锛岄€氶亷鐒＄窔鍌宠几瀵︽檪閫ｆ帴鏈嶅嫏鍣ㄦ暩鎿氬韩;瀵︽檪鐩ら粸璨ㄧ墿銆佸嚭鍏ュ韩;瀵︽檪鏌ヨ淇℃伅鍙婃檪瑾垮害;閭勫叿鏈夊瓨鍎茶獮闊虫暩鎿氥€佺啊渚垮揩鎹�銆侀伩鍏嶄汉鐐洪尟瑾ゃ€佺簿绨′汉鍔�銆佺鐞嗗韩瀛�銆佺府鐭箒闆滅▼搴�銆佺瘈(ji茅)鐪佹檪闁撱€佹彁楂樻湇鍕欒唱閲忕瓑鐗归粸銆�

1绯荤当(t菕ng)纭欢瑷▓

1.1纭欢绯荤当(t菕ng)绲勬垚

鐩纭欢骞宠嚭涓昏鍒�3閮ㄥ垎锛氳檿鐞嗗櫒鏍稿績銆佽姱鐗囧収鐨勫鍦嶉浕璺�銆佹澘绱氬鍦嶉浕璺€傛湰绯荤当(t菕ng)涓昏鍖呮嫭ARM铏曠悊鍣�銆佸瓨鍎插櫒銆佹纰兼巸鎻忓剙銆佺劇绶氭敹鐧�(f膩)鑺墖銆丩CD椤ず鍙婅Ц鎽稿睆銆傚叾绲愭鍦栧鍦�1鎵€绀�銆�

1.2涓昏纭欢鐨勯伕鍨嬪強闆昏矾瑷▓

1.2.1宓屽叆寮忚檿鐞嗗櫒

鏈郴绲�(t菕ng)閲囩敤Samsung鍏徃鐨凷3C44BOX铏曠悊鍣�锛岃┎铏曠悊鍣ㄦ槸灏堥杸鐐烘墜鎸佽ō鍌欏拰涓€鑸噳鐢ㄦ彁渚涚殑楂樻€у児姣斿井铏曠悊鍣�锛屼娇鐢ˋRM7TDMI鏍革紝宸ヤ綔鍦�66MHz銆傝┎鑺墖鍚湁闈炲父璞愬瘜鐨勭墖涓婅硣婧愶紝骞句箮鎵€鏈夊父鐢ㄧ殑鑺墖绱氱附绶氱祼妲嬮兘鏈夊皪鎳夌殑纭欢鎺у埗鍣�锛屽鍦嶆摯灞曢潪甯告柟渚裤€�

1.2.2澶栭儴瀛樺劜鍣�

鐐轰簡婊胯冻鐗╂祦PDA鐨勬噳鐢ㄩ渶瑕�锛屾湰绯荤当(t菕ng)閲囩敤Flash銆丼DRAM銆丯ANDFalsh瀛樺劜鍣ㄣ€�

闁冮€熷瓨鍎插櫒(FlashMemory)鐨勪富瑕佺壒榛炴槸鎺夐浕淇濆瓨淇℃伅銆傚畠鏃㈡湁ROM鐨勭壒榛烇紝鍙堟湁楂樺瓨鍙栭€熷害锛屼笖鏄撲簬鎿﹂櫎鍜岄噸瀵�锛屽姛鑰楀皬銆傚湪绯荤当(t菕ng)涓€氬父鐢ㄤ簬瀛樻斁鎿嶄綔绯荤当(t菕ng)鍜岀▼搴忎唬纰�锛屼互鍙婁竴浜涘湪绯荤当(t菕ng)鎺夐浕鍚庨渶瑕佷繚瀛樼殑鐢ㄦ埗鏁告摎绛塠2]銆傜郴绲�(t菕ng)涓婇浕鎴栧京浣嶅悗寰炴鐛插緱绗竴姊濇寚浠ゅ苟闁嬪鍩�(zh铆)琛�銆傛湰绯荤当(t菕ng)閬哥敤涓€鐗�16bitAM29LV160B绶氭€lash瀛樺劜鍣紝鍠墖瀛樺劜瀹归噺鐐�2MB銆侳lash鑸嘢3C44BOX閫氶亷涓€闆婚樆鑸囩墖閬哥nGCS0閫ｆ帴锛屽鎺ヤ笂鎷夐浕闃�;鏁告摎绶氳垏鍦板潃绶氬垎鍒ョ浉閫�;璁€鍑哄鍏ョ鍒嗗垾鎺OE銆乶WE銆�

SDRAM鍏锋湁瀛樺劜瀹归噺澶�銆佸児鏍间究瀹溿€佹帀闆讳笉淇濆瓨鐨勭壒榛�锛屾湰绯荤当(t菕ng)涓富瑕佺敤浜庡瓨鏀鹃亱琛岀▼搴忓強鏁告摎鍫嗘＇绛�銆傛湰绯荤当(t菕ng)閲囩敤鐝句唬鍏徃鐨�57V绯诲垪HY57V641620锛屽畠鏄�4Banks脳1M&TImes;16bit鐨凷DRAM鑺墖,鍠墖瀛樺劜瀹归噺鐐�4绲�&TImes;16MbTI(8MB)銆傜偤浜嗘豢瓒冲京闆滅墿娴佹暩鎿氫俊鎭郴绲�(t菕ng)鐨勯渶姹�锛屽厖鍒嗙櫦(f膩)鎻�32浣岰PU鐨勬暩鎿氳檿鐞嗚兘鍔�锛岀郴绲�(t菕ng)鐢�2濉�8ns鐨凥Y57V641620骞惰伅绲勬垚32bitSDRAM瀛樺劜鍣ㄧ郴绲�(t菕ng)[3]銆傞€氶亷nSCS閬搁€�锛屽啀鐢眓SRAS銆乶SCAS渚嗗垎鍒ラ伕閫氳鍦板潃鍜屽垪鍦板潃灏嬪潃銆�

NANDFlash鍍规牸渚垮疁銆佸瓨鍎查噺澶�銆佹€у児姣旈珮锛屽苟涓斿崄鍒嗚紩渚裤€佹姉闇囨€т篃濂�锛岄仼鍚堢敤浜庡仛鏁哥⒓鐢㈠搧銆傛湰鏂囬噰鐢↘9F2808U0B16M&TImes;8浣嶅瓨鍎茶姱鐗�,闆诲鑼冨湇2.7V锝�3.6V锛岀暥USB鎺у埗鑺墖铏曚簬SLAVE妯″紡鏅�锛屽氨鍙互寰濸C姗熶笅杓夋枃浠讹紝瀛樺劜鍦∟ANDFlash涓�銆傜暥鐩ら粸浜哄摗鎷胯憲PDA鐩ら粸鏅�锛岀郴绲�(t菕ng)鍙洿鎺ヨ鐢ㄥ瓨鍎茬殑鏁告摎鏂囦欢锛岀洡榛炰汉鍝℃竻榛炲畬鐣㈡檪锛屼篃鍙互鍦∟ANDFlash涓繚鐣欎竴浠芥暩鎿氾紝浠ヤ緵闅ㄦ檪鏌ヨ锛岄倓鍙互淇濆瓨瑾為煶鏁告摎銆傞€氶亷GPC15渚嗛伕閫歂ANDFlash,鐩告噳鐨刵OE銆乶WE閫茶璁€瀵搷浣溿€傚悇鍊嬪瓨鍎插櫒鑸囪檿鐞嗗櫒鐨勯€ｆ帴闆昏矾鍦栧鍦�2鎵€绀�銆�

1.2.3LCD娑叉櫠椤ず鍙婅Ц鎽稿睆妯″

ARM铏曠悊鍣⊿3C44BOX鍖呮嫭LCD鎺у埗鍣紝鍙敮鎸佺伆搴CD鍜屽僵鑹睱CD銆傛湰瑷▓閫氶亷璀⒓鍣ㄩ伕閫�2鍊�74HC245鍒嗗垾渚嗘帶鍒禠CD鍍忕礌杓稿嚭鍜屾帶鍒朵俊铏�銆傛湰鏂囬伕鐢ㄥ垎杈ㄧ巼鐐�320脳240鐨凾FT褰╄壊3.9瀵搁’绀哄櫒LQ039Q2DS54鍙夾DS7843瑙告懜灞忛﹨鍕曡姱鐗囥€係3C44BOX閫氶亷绔彛PG妯℃摤涓茶鐨凷IO鎺ュ彛鑸囩敤瑙告懜灞忔帶鍒惰姱鐗嘇DS7843閫茶鏁告摎鍌宠几锛屽畬鎴愬皪瑙告懜灞忚Ц鎽镐綅缃潗妯欑殑璁€鍙栥€侫DS7843涓昏瀹屾垚闆绘サ闆诲鐨勫垏鎻�锛屾帴瑙搁粸铏曢浕澹撳€肩殑閲囬泦浠ュ強A/D杞夋彌[4]銆傛帴鍙ｉ浕璺湒濡傚湒3鎵€绀�銆�

1.2.4鎺ュ彛瑷▓

(1)RS232鎺ュ彛瑷▓

鐢变簬S3C44BOX鍙湁2閫氶亾UART锛屽苟娌掓湁闆嗘垚RS-232C鎺ュ彛锛屽洜姝ら伕鐢∕AX202浣滅偤UART鍒癛S-232C鐨勯浕骞宠綁鎻涜姱鐗�锛屼互渚垮叾鑸嘝C姗熺瓑鍏朵粬瑷倷閫茶涓茶閫氫俊锛岀嵅鍙栨暩鎿氬強瑾為煶淇℃伅锛屾柟渚挎洿鏂版暩鎿�銆傞伕鐢�9閲濈殑DB9闋�锛岀敤鍒�3姊濈窔:GND銆丷XD銆乀XD銆�

(2)JTAG鎺ュ彛

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(3)闊抽牷鎺ュ彛瑷▓

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(4)USB鎺ュ彛瑷▓

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閫氶亷USB鎺ュ彛鑸囧付USB鎺ュ彛鐨勫井鍨嬫纰兼巸鎻忓剙绲勫悎锛屽氨鍙互杓曟澗鐨勯€ｆ帴PDA锛屼互閲囬泦鐗╂祦璨ㄧ墿鐨勬暩鎿�銆備娇鐗╂祦鏁告摎閲囬泦璁婂緱杓曟澗銆佸揩鎹枫€傛帴鍙ｈō瑷堥浕璺湒濡傚湒4鎵€绀�銆�

1.2.5鐒＄窔閫氫俊妯″瑷▓

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