;===============================================================================
; Program demonstracyjny DEMO1
;===============================================================================
; Opis: Rotacja punktu świetlnego (ciemnego) na porcie P4
; - realizacja w programie głównym
; - P5.0=H - bez opóźnień
; - P5.0=L - z opóźnieniami
;-------------------------------------------------------------------------------
include REG515.INC ;Tabela predefinicyjna SFR.
;-------------------------------------------------------------------------------
code at 1000h ;organizacja od adresu 1000h
ljmp start ;skok do poczatku programu
code at 2000h
start: mov a,#001h ;wartość początkowa ACC
mov R2, #00Eh
mov R0, #000h
mov R5, #000h
mov R6, #000h
mov B,#10d
timer: mov TMOD,#01h
setb TR0
setb ET0
setb EAL
setb IT0
clr F1
petla: jnb P5.2,pocz
jnb P5.1,stop
jnb P5.0,reset
ljmp petla
pocz: setb F1
ljmp petla
stop: clr F1
ljmp petla
reset: mov P4,#000h
mov r0,#000h
clr F1
ljmp petla
ORG 100Bh
jnb F1,aaa
djnz R2, aaa
mov R2,#00Eh
inc r0
mov a, r0
mov B,#10d
DIV aB
mov r5,B
mov B, #10d
DIV aB
mov r6, B
mov B,#16d
mov a, r6
MUL aB
add a,r5
mov p4, a
aaa: RETI
;-------------------------------------------------------------------------------
END
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