📄 dianji.lst
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A51 MACRO ASSEMBLER DIANJI 03/18/2009 18:14:41 PAGE 1
MACRO ASSEMBLER A51 V7.02a
OBJECT MODULE PLACED IN dianji.OBJ
ASSEMBLER INVOKED BY: D:\Keil uVision 2\C51\BIN\A51.EXE dianji.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
0060 1 PWMH EQU 60H
0061 2 PWMT EQU 61H
0063 3 COUNT EQU 63H
0080 4 PWM BIT P0.0
5
0000 6 ORG 0000H
0000 0130 7 AJMP MAIN
000B 8 ORG 000BH
000B 020067 9 LJMP TIME0
0030 10 ORG 0030H
0030 7561FA 11 MAIN: MOV PWMT,#250 ;设PWM信号一个周期的总长度为100
0033 756301 12 MOV COUNT,#1
0036 758801 13 MOV TCON,#01H
0039 D2AF 14 SETB EA
003B D2A9 15 SETB ET0
003D 758C0A 16 MOV TH0,#0AH
0040 758A00 17 MOV TL0,#00H
0043 758000 18 MOV P0,#00H
0046 209005 19 JIANCE:JB P1.0,ZHONGSU ;低速键按下,则附PWMH=10,即PWM信号的高电平饰
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