課程設(shè)計(jì)報(bào)告---步進(jìn)電機(jī)角度控制mc51系統(tǒng)(更新版)
【正文】 3. 程序附錄 81. 設(shè)計(jì)任務(wù) 設(shè)置鍵盤(pán)：2CLR574SETSTART0 實(shí)現(xiàn)功能：一． 鍵入7（次數(shù)）45（角度數(shù)）鍵入SET設(shè)置完畢，鍵入START步進(jìn)電機(jī)轉(zhuǎn)動(dòng)45度7次；停止后鍵入CLR返回零位；每個(gè)過(guò)程都必須有相關(guān)顯示。程序設(shè)計(jì)流程圖：開(kāi)始按下SET鍵？輸入次數(shù)和轉(zhuǎn)動(dòng)角度按下SET鍵？按下START鍵？步進(jìn)電機(jī)按設(shè)定轉(zhuǎn)動(dòng)R2≥R3?R1≥60H?按下CLR鍵？電機(jī)停止轉(zhuǎn)動(dòng)電機(jī)反轉(zhuǎn)回到零位 詳細(xì)設(shè)計(jì) 左移顯示模塊程序如下：11KEY0: MOV A,00H ACALL BUF ACALL DIS AJMP STTKKEY2: MOV A,02H ACALL BUF ACALL DIS AJMP STTKKEY4: MOV A,04H ACALL BUF ACALL DIS AJMP STTKKEY5: MOV A,05H ACALL BUF ACALL DIS AJMP STTKKEY7: MOV A,07H ACALL BUF ACALL DIS AJMP STTKBUF: PUSH 00H CJNE R4,01H,BUF1 MOV 40H,50H MOV 41H,51H MOV 42H,52H MOV 43H,53H MOV 53H,A MOV 52H,43H MOV 51H,42H MOV 50H,41HBUF1: POP 00H RET JISUAN子程序本設(shè)計(jì)設(shè)計(jì)了一個(gè)JISUAN子程序，用來(lái)計(jì)算轉(zhuǎn)動(dòng)設(shè)定角度所需的拍數(shù)，存儲(chǔ)在R3中。記錄已循環(huán)的次數(shù) MOV R1,00H。記錄已執(zhí)行的拍數(shù) MOV DPTR,L2 MOV A,R0 CJNE A,00H,BU1BU0: MOV R0,00H MOV DPTR,L2BU1: MOV B,R0 MOV A,B MOVC A,A+DPTR MOV P1,A INC R1 CALL DLIMS MOV A,R1 CLR C SUBB A,R3 JC BU2 MOV R1,00H INC R2 MOV R5,0FHYSB: ACALL DLIMS DJNZ R5,YSB MOV A,R2 CJNE A,60H,BU2 JMP BU3BU2: INC R0 MOV A,R0 CJNE A,08H,BU1 SJMP BU0L2:DB 90H,80H,0C0H,40H,60H,20H,30H,10HBU3: RETAA1:DB 0FCH,60H,0DAH,0F2H,66H,0B6H,0BEH,0E0H,0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EH DLIMS: MOV R7,0FHDL0: MOV R6,0FFHDL1: DJNZ R6,DL1 DJNZ R7,DL0 RETDELAY: MOV R5,0FFHLP1: DJNZ R5,LP1 RETSTTK: ACALL DIS MOV DPTR,7F01H MOV A,00H MOVX DPTR,A MOV DPTR,7F02H MOVX A,DPTR ANL A,06H CJNE A,06H,STTK AJMP BEGIN END
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