ADDING-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: 20px 0px 0px; WORD-SPACING: 0px; FONT: 14px/25px 宋体, arial; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; PADDING-TOP: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); orphans: 2; widows: 2; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px"> ORL A,#11000011B CPL A
JZ K_RET1 ;直到读取的数据取反后为0说明键释放了,才从键盘处理程序中返回
AJMP K_RET
K_RET1:
RET
D500MS: ;流水灯的延迟时间
PUSH PSW
SETB RS0
MOV R7,#200
D51: MOV R6,#250
D52: NOP
NOP
NOP
NOP
DJNZ R6,D52
DJNZ R7,D51
POP PSW
RET
LAMP:
JB StartEnd,LampStart ;如果StartEnd=1,则启动
MOV P1,#0FFH
AJMP LAMPRET ;不然关闭所有显示,返回
LampStart:
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