鎽� 瑕侊細鏈枃閬�(y霉n)鐢ˋT89C51鍠墖姗�(j墨)銆侀嵉鐩ゅ拰LED灏堢敤鏅鸿兘鎺у埗鑺墖HD7279A銆佹閫�(j矛n)闆绘(j墨)鐠�(hu谩n)褰㈠垎閰嶅櫒L297銆佹閫�(j矛n)闆绘(j墨)椹�(q奴)鍕曞櫒L298N妲�(g貌u)鎴愪簡涓€濂楁閫�(j矛n)闆绘(j墨)杞�(zhu菐n)鑷烘帶鍒剁郴绲�(t菕ng)锛屽(sh铆)鐝�(xi脿n)鍠墖姗�(j墨)璀樺垾骞惰几鍑洪’绀洪嵉鐩よ几鍏ョ殑鏁�(sh霉)鎿�(j霉)淇℃伅锛堣綁(zhu菐n)瑙掞級骞剁敘(ch菐n)鐢熼€g簩(x霉)鑴堟矕鎺у埗姝ラ€�(j矛n)闆绘(j墨)杞�(zhu菐n)鍕曪紝閫�(j矛n)鑰屽付鍕曡綁(zhu菐n)鍕曡嚭杞�(zhu菐n)鍕曠殑浠诲嫏(w霉)銆�
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姝ラ€�(j矛n)闆诲嫊姗�(j墨)宸ヤ綔锛岄渶瑕佹閫�(j矛n)闆绘(j墨)绶氬湀鐨勫嫷纾佷俊铏�锛岄倓闇€瑕佸姛鐜囨斁澶у櫒鏍规摎(j霉)瑭蹭俊铏熺敘(ch菐n)鐢熼﹨(q奴)鍕曢浕娴併€傚皥闁€鐐烘閫�(j矛n)闆绘(j墨)瑷�(sh猫)瑷�(j矛)鐨勭挵(hu谩n)褰㈠垎閰嶅櫒鍜屽姛鐜囬﹨(q奴)鍕曞櫒鍙互瀵�(sh铆)鐝�(xi脿n)閫欑ó鍔熻兘銆�
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鏍规摎(j霉)瀵�(sh铆)闅涢渶瑕�锛屼汉姗�(j墨)浜や簰閫氶亷4脳4琛屽垪寮忛嵉鐩ゅ拰涓€灏�4鑱�(li谩n)LED鏁�(sh霉)纰肩渚嗗(sh铆)鐝�(xi脿n)锛涙寜閸佃几鍏ヨ垏LED椤ず鍣ㄧ敱鎺у埗鑺墖HD7279A渚嗘帶鍒�锛涘柈鐗囨(j墨)閬哥敤AT89C51 Flash鍠墖姗�(j墨)锛涚敱浜庢脯閲忚寖鍦嶅苟涓嶈姹傚偩鏂滆搴﹁畩鍖栫殑鍒嗗害闈炲父绱�(x矛)瀵�锛岄伕鐢ㄦ垚鏈純浣庣殑鍏╃浉姝ラ€�(j矛n)闆诲嫊姗�(j墨)42BYG121锛屽叾姝ラ€�(j矛n)瑙掔偤1.8搴�锛岄€氶亷鍗婃椹�(q奴)鍕曟柟寮忛€�(j矛n)琛岀窗(x矛)鍒嗗彲鐛插緱0.9搴︾殑姝ラ€�(j矛n)瑙掞紱鐠�(hu谩n)褰㈠垎閰嶅櫒鍜岄浕姗�(j墨)椹�(q奴)鍕曞櫒閬哥敤L297鍜孡298N鑺墖锛岀敱L297灏囧柈鐗囨(j墨)绲﹀嚭鐨勯€g簩(x霉)鑴堟矕杞�(zhu菐n)鎻涙垚姝ラ€�(j矛n)闆绘(j墨)鎵€瑕佹眰鐨勭浉绻炵祫鑴堟矕搴忓垪锛涘啀鐢盠298N灏嶇浉鑴堟矕淇¤櫉閫�(j矛n)琛屾斁澶�锛岄﹨(q奴)鍕曟閫�(j矛n)闆绘(j墨)杞�(zhu菐n)鍕�銆�
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鍦�1 鎺у埗绯荤当(t菕ng)绲�(ji茅)妲�(g貌u)妗嗗湒
绯荤当(t菕ng)鐨勫伐浣滈亷绋嬪涓嬶細绯荤当(t菕ng)鍒╃敤閸电洡杓稿叆鏁�(sh霉)鍊�锛岄€氶亷HD7279A鑺墖灏囪几鍏ョ殑鎸夐嵉閸靛€煎偝閫佸埌鍠墖姗�(j墨)锛屽柈鐗囨(j墨)璀樺垾閸靛€兼墍浠h〃鐨勬槸鏁�(sh霉)鎿�(j霉)閭勬槸鍔熻兘閸�锛屾垨鑰呭偝閫佹暩(sh霉)鎿�(j霉)缍�(j墨ng)閬嶩D7279A椹�(q奴)鍕昄ED鏁�(sh霉)纰肩椤ず锛屾垨鑰呮牴鎿�(j霉)杓稿叆鏁�(sh霉)鍊肩⒑瀹氭閫�(j矛n)闆绘(j墨)鐨勮綁(zhu菐n)瑙�锛岃几鍑轰竴瀹氱殑鑴堟矕淇¤櫉锛屽苟鐢盠297杞�(zhu菐n)鎻涙垚姝ラ€�(j矛n)闆诲嫊姗�(j墨)鍚勭浉鐨勭浉鑴堟矕锛岀稉(j墨ng)閬嶭298N鏀惧ぇ椹�(q奴)鍕曟閫�(j矛n)闆诲嫊姗�(j墨)锛岀敱姝ラ€�(j矛n)闆诲嫊姗�(j墨)甯跺嫊姗�(j墨)姊伴儴鍒嗚綁(zhu菐n)鍕曘€�
涓�銆佷富瑕佹帴鍙h垏绶ㄧ▼瀵�(sh铆)鐝�(xi脿n)
鏁�(sh霉)鎿�(j霉)杓稿叆鑸囬’绀烘帴鍙h姱鐗囬噰鐢℉D7279A锛屽畠鏄竴鍊嬪叿鏈変覆琛屾帴鍙g殑锛屽彲鍚屾檪(sh铆)椹�(q奴)鍕�8浣嶅叡闄板紡LED鏁�(sh霉)纰肩鐨勬櫤鑳介’绀洪﹨(q奴)鍕曡姱鐗囷紝瑭茶姱鐗囧悓鏅�(sh铆)閭勫彲閫f帴澶氶仈(d谩)64閸电殑閸电洡鐭╅櫍锛屽柈鐗囧嵆鍙畬鎴怢ED椤ず銆侀嵉鐩ゆ帴鍙g殑鍏ㄩ儴鍔熻兘銆侶D7279A鍏�(n猫i)鍚纰煎櫒锛屽彲鐩存帴鎺ュ彈BCD纰兼垨16閫�(j矛n)鍒剁⒓锛屽苟鍚屾檪(sh铆)鍏锋湁2绋纰兼柟寮忥紝姝ゅ閭勫叿鏈夊绋帶鍒舵寚浠�锛屽娑堥毐銆侀杻鐖�銆佸乏绉�銆佸彸绉�銆佹灏嬪潃绛�銆�
HD7279A鐨勬帶鍒舵寚浠ゅ垎鐐轰簩澶ч:绱旀寚浠ゅ拰甯舵湁鏁�(sh霉)鎿�(j霉)鐨勬寚浠�銆傜磾鎸囦护鍖呮嫭娓│銆佺Щ浣嶉’绀�銆佸京(f霉)浣嶇瓑锛屽叡瑷�(j矛)鍏锛屽皪鎳�(y墨ng)鐨勬帶鍒剁⒓鏄緸0xBF鍒�0xA4锛涘付鏁�(sh霉)鎿�(j霉)鐨勬寚浠ゅ寘鎷’绀烘暩(sh霉)鎿�(j霉)銆佹秷闅辨帶鍒躲€佽畝鍑洪嵉纰肩瓑锛屾寚浠ゆ牸寮忔槸鎺у埗瀛楋紜鏁�(sh霉)鎿�(j霉)銆�
鐢–51绶ㄧ▼锛屽(sh铆)鐝�(xi脿n)灏岺D7279A鐧�(f膩)閫佷竴鍊嬪瓧绡€(ji茅)鐨勬寚浠ゆ垨鏁�(sh霉)鎿�(j霉)鐨勪緥绋嬪涓嬶細
void send_byte锛� unsigned char out_byte锛夛經
unsigned char i;
cs=0;
long_delay锛堬級;
for 锛坕=0;i<8;i++锛夛經
if 锛坥ut_byte&0x80锛�
dat=1;
else
dat=0;
clk=1;
short_delay锛堬級;
clk=0;
short_delay锛堬級;
out_byte=out_byte锛�2;
锝�
dat=0;
锝�
鐧�(f膩)閫佸付鏁�(sh霉)鎿�(j霉)鐨勬寚浠ゅ彲鍒╃敤涓嬮潰鐨勪緥绋嬩締瀵�(sh铆)鐝�(xi脿n)锛�
void write7279锛坲nsigned char cmd, unsigned char dta锛夛經
send_byte 锛坈md锛�;
send_byte 锛坉ta锛�;
锝�
寰濰D7279A璁€鍑烘暩(sh霉)鎿�(j霉)鐨勪緥绋嬪涓嬶細
unsigned char read7279锛坲nsigned char command锛夛經
send_byte锛坈ommand锛�;
return锛坮eceive_byte锛堬級锛�;
锝�
瀹氱京鏈夐棞(gu膩n)鐨勫懡浠ゅ瓧濡備笅锛�
#define CMD_RESET 0xa4
#define DECODE0 0x80
#define DECODE1 0xc8
#define CMD_READ 0x15
#define UNDECODE 0x90
#define BLINKCTL 0x88
鈥︹€�
瑕佹帶鍒惰垏HD7279A閫f帴鐨凩ED锛屽埄鐢ㄤ笅闈㈢殑绋嬪簭琛屽嵆鍙(sh铆)鐝�(xi脿n)锛�
send_byte锛圕MD_RESET锛�; //寰�(f霉)浣岺D7279A
write7279锛圔LINKCTL,0xf8锛�; //绗�1銆�2銆�3 浣嶈ō(sh猫)缃偤闁冪垗椤ず
write7279锛圲NDECODE,0X08锛�; //鍦ㄧ1浣嶉’绀轰笅鍔冪窔
write7279锛圖ECODE0,value锛�; //鎸�0鏂瑰紡瑙g⒓椤ず鏁�(sh霉)瀛�
write7279锛圖ECODE1,value锛�; //鎸�1鏂瑰紡瑙g⒓椤ず鏁�(sh霉)瀛�
鐠�(hu谩n)褰㈠垎閰嶅櫒L297鐨勬牳蹇冩槸鑴堟矕鍒嗛厤鍣紝瀹冨彲浠ョ敘(ch菐n)鐢熶笁绋浉搴忎俊铏�锛屽皪鎳�(y墨ng)浜庝笁绋笉鍚岀殑宸ヤ綔鏂瑰紡锛氬崐姝ユ柟寮�锛屼竴鐩告縺鍕垫柟寮�锛屽叐鐩告縺鍕垫柟寮�銆傚畠鎺ユ敹渚嗚嚜鎺у埗鍣ㄧ殑淇¤櫉鏈夛細 CW/ CCW 姝�/鍙嶈綁(zhu菐n)锛�17鑵筹級锛孒ALF/ FULL 鍗婃/鍩烘湰姝ヨ窛锛�19鑵筹級锛孲TEP 姝ラ€�(j矛n)鑴堟矕锛�18鑵筹級銆傜偤浜嗗湪鐝�(xi脿n)鏈夌‖浠跺熀绀�(ch菙)涓婇仈(d谩)鍒版渶浣崇殑浣跨敤鏁堟灉锛屾閫�(j矛n)闆绘(j墨)鎸夊崐姝ユ柟寮忛亱(y霉n)杞�(zhu菐n)锛屾鏅�(sh铆)L297鐨勫伐浣滄檪(sh铆)搴忓鍦�2鎵€绀猴細


绯荤当(t菕ng)閬哥敤鐨勫姛鐜囨斁澶у櫒L298N锛屾槸涓€绋瓾鍨嬮洐妤垫€ч﹨(q奴)鍕曞櫒锛孌1锝濪4鍥涘€嬩簩妤电绲勬垚姗嬪紡绾�(x霉)娴佸洖璺�銆備娇鐢ㄤ笂杩癏姗嬪姛鏀�锛屾瘡鐩哥篂绲勫繀闋堢敤涓€鍊婬姗�銆侺298N鐐洪洐H姗嬮珮闆诲澶ч浕娴佸姛鐜囬泦鎴愰浕璺�锛屽彲鐢ㄤ締椹�(q奴)鍕曠辜闆诲櫒銆佺窔鍦堛€佺洿娴侀浕鍕曟(j墨)鍜屾閫�(j矛n)闆诲嫊姗�(j墨)绛夐浕鎰熸€ц矤(f霉)杓夈€侺297姝ラ€�(j矛n)闆绘(j墨)鎺у埗鍣ㄨ垏L298N闆橦姗嬮﹨(q奴)鍕曞櫒绲勬垚鍏稿瀷鐨勯泦鎴愭閫�(j矛n)闆绘(j墨)寰帶鍒跺櫒銆傚叾閫f帴闆昏矾濡傚湒3鎵€绀�銆傚叾涓�8鍊嬩簩妤电D1锝濪8鐐鸿垏L298N鑺墖鍙婃閫�(j矛n)闆诲嫊姗�(j墨)閫f帴锛岀祫鎴怘姗嬬殑绾�(x霉)娴侀浕璺�銆�
鍥�銆佺郴绲�(t菕ng)鎺у埗鐨勫(sh铆)鐝�(xi脿n)
鍦�4
鐐轰簡鏂逛究鎺у埗鑸囩法绋�锛屾寜閸电殑闊挎噳(y墨ng)鏂瑰紡閲囩敤涓柗鏂瑰紡锛屽湪鏈夋寜閸垫寜涓嬫檪(sh铆)HD7279灏囩櫦(f膩)鍑轰竴鍊嬩綆闆诲钩淇¤櫉瑙哥櫦(f膩)涓柗锛屽湪涓柗铏曠悊绋嬪簭涓畬鎴愬皪鎸夐嵉鐨勯熆鎳�(y墨ng)锛岀郸鍑虹浉鎳�(y墨ng)鐨勯’绀哄拰鎺у埗銆傜▼搴忔鍦栧鍙冲湒绀�銆�
鎸変笂杩版柟妗堝(sh铆)鐝�(xi脿n)鐨勬閫�(j矛n)闆绘(j墨)杞�(zhu菐n)鑷烘帶鍒跺櫒锛岃兘澶犳柟渚垮湴杓稿叆杞�(zhu菐n)鍕曡搴﹀拰杞�(zhu菐n)鍕曟柟鍚戯紝鍦ㄨ綁(zhu菐n)鍕曠殑鍚屾檪(sh铆)涔熻兘婧�(zh菙n)纰烘寚绀鸿綁(zhu菐n)閬庤搴﹀拰鏂瑰悜锛屽彇寰椾簡鑹ソ鐨勬晥鏋�銆�