微型計(jì)算機(jī)控制技術(shù)課程設(shè)計(jì)---步進(jìn)電機(jī)角度控制-免費(fèi)閱讀
【正文】 ………………………………… DISP: LEA SI,VAR1 LEA DI,VAR2 MOV CX,0004H DIR: MOV AL,[SI] MOV DX,0604H OUT DX,AL MOV AL,[DI] MOV DX,0602H OUT DX,AL CALL TIME 11 INC SI INC DI LOOP DIR RET 。檢測(cè) PC5 JNZ KEY_SET CALL KEY0 JMP STTK KEY_SET:TEST AL,40H 。掃描 PC0口 MOV DX,0604H OUT DX,AL MOV DX,0604H IN AL,DX TEST AL,20H 。檢測(cè) PC6口 JNZ KEY_111 CALL KEYB KEY_111:JMP STTK 。檢測(cè) PC6口 JNZ KEY_0 CALL KEYF JMP STTK KEY_0:MOV AL,0FDH 。 雖然上機(jī)調(diào)試的經(jīng)歷是痛苦的，但是期間的細(xì)節(jié)錯(cuò)誤給了我們應(yīng)有的教訓(xùn)，使我們?cè)谝院蟮膶W(xué)習(xí)及工作中盡量避免，對(duì)于匯編語(yǔ)言的編程也有了進(jìn)一步的了解 加深了對(duì) 步進(jìn)電機(jī) 的理解和使用技巧， 設(shè)計(jì) 中，需要對(duì)步進(jìn)電機(jī)進(jìn)行角度控制， 即 需要對(duì)步進(jìn)電機(jī)的 角度 進(jìn)行計(jì)算分析，以得到所需 的 步數(shù) 。PC6 PC5 =0110 0000 JNZ KEY JMP STT KEY: MOV AL,0FEH 。檢測(cè) PC5 JNZ KEY_7 CALL KEY6 JMP STTK KEY_7:TEST AL,040H 。8255初始化 MOV DX,0606H OUT DX,AL MOV BX,0000H MOV COUNT,00H MOV D_COUNT,00H MOV D_TIMES,00H STT: MOV AL,00H MOV DX,0604H OUT DX,AL NEXT: MOV DX,0604H IN AL, DX AND AL,60H CMP AL,60H JNZ KEYABC CALL DISP JMP STT POP DX 7 。檢測(cè) PC6口 JNZ KEY_3 CALL KEYSTART JMP STTK KEY_3:MOV AL,0FBH MOV DX,0604H OUT DX,AL MOV DX,0604H IN AL,DX TEST AL,20H ?！? KEYCLR: CMP COUNT,00H JZ CLR1 MOV DI,TAB_C MOV SI,OFFSET VAR4 MOV DL,CL TEST DL,DL JNZ CLR6 MOV DL,08H MOV DI,OFFSET TABLE MOV AL,07H CBW ADD DI,AX CLR6: DEC DI DEC DL CLR4: MOV BX,[SI] MOV AX,[SI+2] MOV DH,0FH DIV DH MOV DH,04H MUL DH INC SI INC SI INC SI INC SI PUSH AX CLR5: POP AX MOV CX,AX PUSH AX CLR2: PUSH DX MOV AL,[DI] MOV DX,0600H OUT DX,AL POP DX DEC DI DEC DL CALL DALLY TEST DL,DL JNZ CLR3 MOV DL,08H MOV DI,OFFSET TABLE MOV AL,07H CBW 10 ADD DI,AX CLR3: LOOP CLR2 DEC BX JNZ CLR5 MOV AL,COUNT POP AX DEC COUNT JNZ CLR4 MOV COUNT,00H CLR1: MOV CX,0004H LEA SI,VAR3 LEA DI,VAR4 CLR7: MOV [SI],0FCH MOV [DI],00H INC SI INC DI LOOP CLR7 CALL CLRR CALL DISP RET 。..............放鍵測(cè)試 ............. STTK: CALL DISP MOV AL,00H MOV DX,0604H OUT DX,AL MOV DX,0604H IN AL,DX AND AL,60H CMP AL,60H JNZ STTK JMP STT CODE ENDS END START 。
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鄂ICP備17016276號(hào)-1