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PWM 的代码
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.asm
;FILENAME:PWM.ASM
;内容: PWM脉宽调制(小直流电机转速控制实验)
PORT1 EQU 290H
PORT2 EQU 28BH
PORT3 EQU 28AH
DATA SEGMENT
BUF1 DW ?
BUF2 DW ?
DATA ENDS
CODE SEGMENT
ASSUME CS:CODE
STAR
pwm.h
//[PWM.h]脉宽调制头文件-----------------------------------------------------
//脉宽调制需要用到的头文件
#include //MCU映像寄存器名
#include "Type.h"
//脉宽调制相关函数声明
//PWM初始化函数声明
void PWMInit(INT8U
pwm.c
//[PWM.c]脉宽调制----------------------------------------------------------*
//本文件包含: *
// (1)PWMInit:PWM初始化
pwm.h
#ifndef __PWM_H
#define __PWM_H
/* PIC18 PWM peripheral routines. */
/* There are five library modules, corresponding to register names:
* PWM1 (CCPCON1)
* PWM2 (CCPCON2)
* PWM3 (CC