步進(jìn)電機(jī)驅(qū)動(dòng)控制

1、 步進(jìn)電機(jī)控制程序K1 EQU P2.0 ;接正轉(zhuǎn)按鍵K2 EQU P2.1 ;接反轉(zhuǎn)按鍵K3 EQU P2.2 ;接停止按鍵TIMES EQU 10 ;重復(fù)次數(shù)OUT EQU P1 ;輸出口 ORG 0000H AJMP MAIN ORG 0030 MAIN:ACALL BUTTONSJMP MAIN ;-按鍵判別子程序-BUTTON: JB K1,L1 ;K1沒按下，跳到L1 JNB K1,$ ;K1按下，等待釋放 MOV R5,#2 ACALL DELAY ;調(diào)用延時(shí)模塊，消除抖動(dòng) ACALL ZZMK ;調(diào)用正轉(zhuǎn)控制子程序L1: JB K2,L2 JNB K2,$ MOV R5,#2

2、ACALL DELAY ACALL FZMKL2: JB K3,L3 JNB K3,$ MOV R5,#2 ACALL DELAY ACALL STOPL3: RET ;-正轉(zhuǎn)子程序-ZZMK:MOV DPTR,#TABLE ;ACALL POSITION ;調(diào)用定位子程序 MOV R4,#8 ;8個(gè)驅(qū)動(dòng)信號(hào) MOV R3,#0 ;驅(qū)動(dòng)信號(hào)初始位置LOOP1:MOV A,R3 MOVC A,A+DPTR ;取出驅(qū)動(dòng)信號(hào) MOV OUT,A ;輸出 JNB K3,STOP JNB K2,FZMK MOV R5,#TIMES ;指定重復(fù)次數(shù) ACALL DELAY ;調(diào)用延時(shí)子程序 INC R3

3、;指向下一個(gè)位置 DJNZ R4,LOOP1 ;是否已經(jīng)輸出8個(gè)驅(qū)動(dòng)信號(hào) SJMP ZZMK;-反轉(zhuǎn)子程序-FZMK:MOV DPTR,#TABLE ;ACALL POSITION ;調(diào)用定位子程序 MOV R4,#8 ;8個(gè)驅(qū)動(dòng)信號(hào) MOV R3,#9 ;驅(qū)動(dòng)信號(hào)初始位置LOOP2:MOV A,R3 MOVC A,A+DPTR ;取出驅(qū)動(dòng)信號(hào) MOV OUT,A ;輸出 JNB K3,STOP JNB K1,ZZMK MOV R5,#TIMES ;指定重復(fù)次數(shù) ACALL DELAY ;調(diào)用延時(shí)子程序 INC R3 ;指向下一個(gè)位置 DJNZ R4,LOOP2 ;是否已經(jīng)輸出8個(gè)驅(qū)動(dòng)信號(hào) SJMP FZMK ;-以下為停止子程序-STOP: MOV OUT,#0FFH RET ;-下面為延時(shí)子程序-DELAY: MOV R7,#100D1: MOV R6,#250 DJNZ R6,$ DJNZ R7,D1 DJNZ R5,DELAY RET ;-定位子程序-POSITION:MOV R4,#8 MOV R3,#0P_1: MOV A,R3 MOVC A,A+DPTR MOV OUT,A MOV R5,#TIMES ACALL DELAY INC R3 DJNZ R4,P_1 RET ;-以下為驅(qū)動(dòng)信號(hào)表-