微机原理及接口技术课程设计(步进电机)

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Y

N

Y

结束 CX=0？ 进入循环A3 延迟 转移到A3 程序流程图

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五、软件清单：

STACK SEGMENT STACK DW 256 DUP(?) STACK DATA TAB DATA CODE START: MAIN: A1: A2: ENDS SEGMENT

DB 01H,03H,02H,06H,04H,0CH,08H,09H ENDS SEGMENT

ASSUME CS:CODE,DS:DATA MOV AX,DATA

MOV DS,AX

MOV AL,80H OUT 63H,AL MOV DX,00FFH MOV BX,OFFSET TAB

MOV CX,0008H MOV AL,[BX] OUT

61H,AL

CALL DALLY

INC BX

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DEC DX

JZ M2

LOOP A2

JMP A1 A3: MOV AL,[BX] OUT CALL

INC DEC JZ

LOOP JMP M1: MOV MOV A4: MOV OUT CALL

DEC DEC JZ

LOOP JMP 61H,AL

DALLY_k

BX DX M1

A3 M1

BX,OFFSET TAB CX,0008H AL,[BX] 61H,AL DALLY

BX DX M2

A4 M1

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A5: MOV AL,[BX] OUT 61H,AL CALL

DALLY_k

DEC BX DEC DX JZ M1 LOOP A5 JMP M2

M2: MOV BX,OFFSET TAB MOV AX,0007H ADD BX,AX MOV CX,0008H

JMP A5

DALLY: PUSH CX MOV CX,1000H A6: PUSH AX POP AX LOOP A6 POP CX RET

DALLY_K:PUSH CX MOV CX,0600H

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