STEPPER EQU P1
KEY EQU P2
KEY_1 EQU P2.0
KEY_2 EQU P2.1
KEY_3 EQU P2.2
KEY_4 EQU P2.3
Org 0h
Ljmp Main
Org 0200h
Main: Mov A, #00h
Mov Stepper, A
Mov Key, A
Setb Key_1
Mov A, Key
Jnz Ant_clk
clk_wise:mov Stepper, #0ch
Acall Delay_1ms
Mov Stepper, #06h
Acall Delay_1ms
Mov Stepper, #03h
Acall Delay_1ms
Mov Stepper, #09h
Acall Delay_1ms
Sjmp Main
Ant_clk:mov Stepper, #09h
Acall Delay_1ms
Mov Stepper, #03h
Acall Delay_1ms
Mov Stepper, #06h
Acall Delay_1ms
Mov Stepper, #0ch
Acall Delay_1ms
Ret
DELAY_1MS: MOV R6, #231D ; 1 MILLISECONDS DELAY
GOTO: NOP
NOP
DJNZ R6, GOTO
RET
i have problem in this code.
the ant_clk loop runs only once
on next time program enters to the ant_clk loop but its not completing the loop. the program is returing to the line one of the program after desplaying 09 on port1.
what should be the reason for not completeing the loop?
wher should be the mistak??