Question

In: Electrical Engineering

design a stepper motor in 8051 microcontroller in which stepper motor moves clockwise for some time...

design a stepper motor in 8051 microcontroller in which stepper motor moves clockwise for some time and stops , then anticlockwise for some times and motor stops. (Code in assembly language needed)

Solutions

Expert Solution

CLOCK WISE DIRECTION

CODE SEQUENCE

HEX CODE

STEP INPUT

0

1

1

1

07

1

0

0

0

1

0

1

1

0B

0

1

0

0

1

1

0

1

0D

0

0

1

0

1

1

1

0

0E

0

0

0

1



MOV A,#80

MOV DPTR,#2023

MOVX @DPTR,A

MOV DPTR,#2022

REPEAT: MOV A,#07

MOVX @DPTR,A

LCALL DELAY

MOV A,#0B

MOVX @DPTR,A

LCALL DELAY

MOV A,#0D

MOVX @DPTR,A

LCALL DELAY

MOV A,#0E

MOVX @DPTR,A

LCALL DELAY

SJMP REPEAT

DELAY: MOV R0,#01

LOOP3: MOV R1,#0FF

LOOP2: MOV R2,#0FF

LOOP1: DJNZ R2,LOOP1

DJNZ R1,LOOP2

DJNZ R0,LOOP3

RET



ANTI CLOCK WISE DIRECTION

CODE SEQUENCE

HEX CODE

STEP INPUT

0

1

1

1

07

1

0

0

0

1

1

1

0

0E

0

0

0

1

1

1

0

1

0D

0

0

1

0

1

0

1

1

0B

0

1

0

0

MOV A,#80

MOV DPTR,#2023

MOVX @DPTR,A

MOV DPTR,#2022

REPEAT: MOV A,#07

MOVX @DPTR,A

LCALL DELAY

MOV A,#0E

MOVX @DPTR,A

LCALL DELAY

MOV A,#0D

MOVX @DPTR,A

LCALL DELAY

MOV A,#0B

MOVX @DPTR,A

LCALL DELAY

SJMP REPEAT

DELAY: MOV R0,#01

LOOP3: MOV R1,#0FF

LOOP2: MOV R2,#0FF

LOOP1: DJNZ R2,LOOP1

DJNZ R1,LOOP2

DJNZ R0,LOOP3

RET

Manojponduru answered 3 months ago
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