; ----------------------------------------------------------------------------------------------------------------------------------------
DELAY:?MOV ?R6,#50 ；10ms延时子程序
D1: ? MOV? R7,#99
DJNZ R7,$
DJNZ R6,D1
DJNZ R5,DELAY
RET
; ----------------------------------------------------------------------------------------------------------------------------------------
LED_BL: MOV R1,#4 ；发光二极管闪烁子程序
LE1: CPL WLED ；发光二极管反向
MOV R5,#10
CALL DELAY ；进行100ms延时
DJNZ R1,LE1
RET
; ----------------------------------------------------------------------------------------------------------------------------------------
BZ: MOV R6,#0 ；压电喇叭发声子程序
B1: SETB SPK ；压电喇叭得电，开始发声
DJNZ R6,B1
MOV R5,#5
CALL DELAY ；进行50ms延时
CLR SPK ；关闭压电喇叭
RET
; ----------------------------------------------------------------------------------------------------------------------------------------
DEL: ；0.1ms延时子程序
MOV R5,#1
DELAY1:
MOV R6,#2
E1: MOV R7,#22
E2: DJNZ R7,E2
DJNZ R6,E1
DJNZ R5,DELAY1
RET
; -----------------------------------------------------------------------
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