欧美极品高清xxxxhd,国产日产欧美最新,无码AV国产东京热AV无码,国产精品人与动性XXX,国产传媒亚洲综合一区二区,四库影院永久国产精品,毛片免费免费高清视频,福利所导航夜趣136

標題: 51單片機信號發(fā)生器單緩沖的，想改成雙緩沖代碼和原來圖都在資料里了 [打印本頁]

作者: brant965 時間: 2020-6-23 14:02
標題: 51單片機信號發(fā)生器單緩沖的，想改成雙緩沖代碼和原來圖都在資料里了
這是單緩沖的，想改成雙緩沖，但是改了好多次都不行，就是兩個函數(shù)可以分別在兩個示波器上，求大家?guī)兔纯矗≈x謝大家啦！

單片機源程序如下:
ORG    0000H       ;程序開始
   MOV    DPTR,#0FEFFH ;0832的地址
   MOV    SP,#60H    ;設(shè)置堆棧

START:
   JNB    P1.1,SJB    ;輸出三角波程序
         JNB    P1.4,ZXB    ;輸出正弦波程序
         SJMP START       ;循環(huán)檢測開關(guān)情況
         RET
         /**************三角波************/
SJB: MOV    R6,#00H    ;給R6初值
DA1: MOV    A,R6       ;R6送A
   MOVX    @DPTR,A    ;初值給地址
         INC    R6       ;R6的內(nèi)容既初值+1
         CJNE    R6,#0FFH,DA1;初值到最大
DA2: DEC    R6       ;R6內(nèi)容既初值-1
   MOV    A,R6       ;R6送A
   MOVX    @DPTR,A    ;初值給地址
   CJNE    R6,#00H,DA2 ;初值到最小
   JB    P1.1,START  ;開關(guān)斷開了既退出
   AJMP    SJB       ;跳轉(zhuǎn)到SJB處

/*************正弦波************/
ZXB: MOV    R1,#00H    ;取表格初值
LOOP1: MOV    A,R1       ;在表格里取數(shù)送到指定地址
   MOV    DPTR,#TAB ;把DPTR指針指向表格TAB的所在的地址。
         MOVC    A,@A+DPTR ;將DPTR的地址加上累加器A存的偏移量，形成的新地址中的數(shù)取出給A
         MOV    DPTR,#0FEFFH;建立數(shù)據(jù)指針地址為0FEFFH
         MOVX    @DPTR,A    ;傳送數(shù)據(jù)時先把地址給DPTR，然后用MOVX指令把累加器A的內(nèi)容傳送給@DPTR
         INC    R1       ;加一
         JB       P1.4,START  ;開關(guān)斷開了既退出
         AJMP    LOOP1    ;循環(huán)
TAB: DB 080H,083H,086H,089H,08DH,090H,093H,096H
         DB 099H,09CH,09FH,0A2H,0A5H,0A8H,0ABH,0AEH
         DB 0B1H,0B4H,0B7H,0BAH,0BCH,0BFH,0C2H,0C5H
         DB 0C7H,0CAH,0CCH,0CFH,0D1H,0D4H,0D6H,0D8H
         DB 0DAH,0DDH,0DFH,0E1H,0E3H,0E5H,0E7H,0E9H
         DB 0EAH,0ECH,0EEH,0EFH,0F1H,0F2H,0F4H,0F5H
         DB 0F6H,0F7H,0F8H,0F9H,0FAH,0FBH,0FCH,0FDH
         DB 0FDH,0FEH,0FFH,0FFH,0FFH,0FFH,0FFH,0FFH
         DB 0FFH,0FFH,0FFH,0FFH,0FFH,0FFH,0FEH,0FDH
         DB 0FDH,0FCH,0FBH,0FAH,0F9H,0F8H,0F7H,0F6H
         DB 0F5H,0F4H,0F2H,0F1H,0EFH,0EEH,0ECH,0EAH
         DB 0E9H,0E7H,0E5H,0E3H,0E1H,0DEH,0DDH,0DAH
         DB 0D8H,0D6H,0D4H,0D1H,0CFH,0CCH,0CAH,0C7H
   DB 0C5H,0C2H,0BFH,0BCH,0BAH,0B7H,0B4H,0B1H
         DB 0AEH,0ABH,0A8H,0A5H,0A2H,9FH,9CH,99H
         DB 96H,93H,90H,8DH,89H,86H,83H,80H
         DB 80H,7CH,79H,78H,72H,6FH,6CH,69H
         DB 66H,63H,60H,5DH,5AH,57H,55H,51H
         DB 4EH,4CH,48H,45H,43H,40H,3DH,3AH
         DB 38H,35H,33H,30H,2EH,2BH,29H,27H
         DB 25H,22H,20H,1EH,1CH,1AH,18H,16H
         DB 15H,13H,11H,10H,0EH,0DH,0BH,0AH
         DB 09H,08H,07H,06H,05H,04H,03H,02H
         DB 02H,01H,00H,00H,00H,00H,00H,00H
         DB 00H,00H,00H,00H,00H,00H,01H,02H
         DB 02H,03H,04H,05H,06H,07H,08H,09H
   DB 0AH,0BH,0DH,0EH,10H,11H,13H,15H
         DB 16H,18H,1AH,1CH,1EH,20H,22H,25H
         DB 27H,29H,2BH,2EH,30H,33H,35H,38H
         DB 3AH,3DH,40H,43H,45H,48H,4CH,4EH
         DB 51H,55H,57H,5AH,5DH,60H,63H,66H
         DB 69H,6CH,6FH,72H,76H,79H,7CH,80H
         RET
         END

資料.zip

22.67 KB, 下載次數(shù): 5

歡迎光臨 (http://www.raoushi.com/bbs/)