8x8-led點陣公益廣告牌設計(編輯修改稿)
2025-07-26 19:07 本頁面
【文章內容簡介】 H,4AH,2EH,10HDB 0H,0H。在DB 4H,28H,37H,0E9H,29H,3FH,29H,29HDB 0H,0H。于DB 20H,20H,0A0H,0A2H,0FFH,0A0H,0A0H,20HDB 0H,0H。運DB 51H,1EH,21H,0ADH,0B5H,0A5H,0A9H,25HDB 0H,0H。動DB 27H,0A9H,0B2H,21H,22H,0FCH,21H,3FHDB 0H,0H,0H,0H,0H,0H,0H,0H。Life depends on exercises.DB 0FCH,4H,4H,4H,0H,0BCH,0H,10HDB 10H,0FFH,90H,90H,0H,7CH,54H,54HDB 74H,0H,0H,7CH,44H,0F8H,4H,0HDB 7CH,54H,54H,74H,0H,7FH,44H,44HDB 7CH,0H,7CH,54H,54H,74H,0H,7CHDB 20H,40H,7CH,0H,7CH,44H,0F8H,4HDB 0H,0H,38H,44H,44H,38H,0H,7CHDB 20H,40H,7CH,0H,0H,7CH,54H,54HDB 74H,0H,44H,28H,10H,28H,44H,0HDB 7CH,54H,54H,74H,0H,7CH,20H,40HDB 0H,38H,44H,44H,44H,0H,0BCH,0HDB 74H,54H,54H,5CH,0H,7CH,54H,54HDB 74H,0H,0CH,0CH,0H,0H,0H,0HDB 0H,0H,0H,0HRET。*************************************************MUSIC: MOV P0,0AAH MOV P2,55H MOV SP,50H MOV TH0,0D8H MOV TL0,0EFH MOV TMOD,01H MOV IE,82HMUSIC0: NOP MOV DPTR,DAT 。表頭地址送DPTR MOV 20H,00H 。中斷計數器清0MUSIC1: NOP CLR A 。A清零 MOVC A,@A+DPTR 。查表取代碼 JNB ,S2 JZ END0 。是00H,則結束 CJNE A,0FFH,MUSIC5 。如果是休止符，往下執(zhí)行 LJMP MUSIC3S2: LJMP L2MUSIC5: NOP MOV R6,A 。R6=18H音符的頻率 INC DPTR 。DPTR加一 MOV A,0 MOVC A,@A+DPTR 。取節(jié)拍代碼送R7 MOV R7,A 。R7=30H音符發(fā)音的時間 SETB TR0 。啟動計數MUSIC2: NOP CPL 。 MOV A,R6 MOV R3,A 。R3=R6=18H LCALL DEL MOV A,R7 CJNE A,20H,MUSIC2 。中斷計數器(20H)=R7否? 。不等,則繼續(xù)循環(huán) MOV 20H,00H 。等于,則取下一代碼 INC DPTR LJMP MUSIC1MUSIC3: NOP 。休止100毫秒 CLR TR0 MOV R2,0DH 。R2=13MUSIC4: NOP MOV R3,0FFH 。R3=255 LCALL DEL DJNZ R2,MUSIC4 INC DPTR LJMP MUSIC1END0: LJMP DISPDEL: NOPDEL3: MOV R4,02HDEL4: NOP DJNZ R4,DEL4 NOP DJNZ R3,DEL3 RET NOPDAT:DB 18H,
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