Write a program using Timer 0 to
create a 1 kHz square wave on P1.0.
ORG 0000H
MOV
TMOD, #01H ;16-bit mode
LOOP: MOV
TH0, # FEH ;T= 1/1kHz=1000µs
MOV
TL0, # 0CH ;-500=FE0CH
SETB TR0
;start timer
WAIT: JNB TF0, WAIT ;wait for
overflow
CLR TR0 ;stop
timer
CLR TF0 ;clear
overflow flag
CPL P1.0 ;toggle port
bit
SJMP
LOOP ;repeat
END