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PWM 的代码
pwm.hex
:0280000021005D
:02800B00212929
:1081000075816075300B7532017531157589027591
:108110008A38758C38D2A9D2AFD28C30910280FBCC
:1081200020910280FB053080F2C0D00532E532B5E7
:0F8130003002C290B53105753201D2
pwm.lnp
"pwm.obj"
TO "pwm"
RAMSIZE(256)
CODE( 0X8000-0XBFFF )
XDATA( 0XC000-0XFFFF )
pwm.lst
A51 MACRO ASSEMBLER PWM 02/05/2004 16:21:43 PAGE 1
MACRO ASSEMBLER A51 V7.08a
OBJECT MODULE PLACED IN pwm.OBJ
ASSEMBLER INV
pwm.plg
礦ision2 Build Log
Project:
F:\dp-51pro\实验例程\实验6\asm\PWM\pwm.uv2
Project File Date: 02/04/2004
Output:
pwm.opt
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
pwm.asm
PWMH DATA 30H ;高电平脉冲的个数
PWM DATA 31H ;PWM周期
COUNTER DATA 32H
TEMP DATA 33H
ORG 8000H
AJMP MAIN
ORG 800BH
AJMP INTT0
ORG 8100H
MAIN:
MOV SP,#60H ;给堆栈指针赋初值
MOV PWMH,#02H
pwm.h
#ifndef __Pwm_H__
#define __Pwm_H__
void Test_Pwm(void);
#endif /*__PWM_H__*/
pwm.c
#include
#include "..\inc\44b.h"
#include "..\inc\44blib.h"
#include "..\inc\timer.h"
#define READ_COUNT2 (rTCNTO2 & 0xffff)
#define MaxBeepFreq 900
#define MinBeepFreq 100
exter
pwm.h
#ifndef __Pwm_H__
#define __Pwm_H__
void Test_Pwm(void);
#endif /*__PWM_H__*/