?? 9.2.1精確延時.txt
字號:
TIM96:
HSOTIME EQU 04H
HSOCMD EQU 06H
INTMSK EQU 08H
TIME1 EQU 0AH
CSEG AT 200AH
DCW INTV
CSEG AT 2080H
LDB 48H,#N
LD SP,#100H
LDB HSOCMD,#1BH
ADD HSOTIME,TIME1,3TCC
LDB INTMSK,#20H
EI
HERE:
SJMP HERE
INTV:
PUSHF
LDB HSOCMD,#1BH
DJNZ 48H,CCOM
ADD HSOTIME,TIME1, #TCC
LDB 48H,#N
BR GOON
CCOM:
LD HSOTIME,TIME1
POPF
RET
GOON:
POPF
RET
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