g.asm

来自「汇编程序(cygnal c8051f021)」· 汇编 代码 · 共 30 行

$INCLUDE(C8051F020.INC)
DATA CT 070H
					ORG 0000H
					AJMP START1
					ORG 0100H
START1:		MOV WDTCN,#0DEH
					MOV WDTCN,#0ADH
					MOV OSCXCN,#67H 
					MOV CT,#01H	
					ACALL DELAY1MS
					MOV CT,#01H	
					ACALL DELAY1MS
WAIT:			MOV A,OSCXCN
					ANL A,#80H
					JZ WAIT
					ANL OSCICN,#11111011B
					ORL OSCICN,#10001000B
					ORL OSCXCN,#80H
START2:		MOV XBR2,#40H
					MOV TMOD,#30H
					MOV 
DELAY1MS:	MOV TH0,#1FH
					MOV TL0,#07H
					SETB TR0
LOOP1:		JBC TF0,LOOP2
					SJMP LOOP1
LOOP2:		CLR TR0
					CLR TF0
					DJNZ CT,DELAY1MS
					RET