成都理工大学毕业设计（论文）
基于STM32定时器产生PWM的研究
作者姓名222专业班级222指导老师222
摘要
随着科技水平的提高，ARM的应用越来越广泛。Withthedevelopoftech
ologyARMisusedi
varioussituatio
s
旨在对ARM的深入学习，论文对STM32定时器产生PWM脉冲宽度调制输
出进行了研究。O
thei
te
tio
ofstudyo
ARMtimerofSTM32producepulsesPWMwidthmodulatio
isstudiedi
thispaper
PWM就是某个频率占空比的方波，其应用领域包括测量，通信，功率控制与变换，电动机控制、伺服控制、甚至某些音频放大器，因此研究PWM技
术具有十分重要的现实意义。PWMisthesquarewavewhichhasasuredutycyclea
dfreque
cyItsapplicatio
fieldsi
cludemeasureme
tcommu
icatio
powerco
trola
dtra
sformmotorco
trolservoco
troleve
someaudioamplifierThereforeitisimporta
ttoresearchPWMtech
ology
本设计采用STM32定时器产生PWM。ItiseasytousethetimerofSTM32toproducePWMoutput
STM32的PWM由定时器产生，PWM的周期即定时器定时的时间，通过计算方波的频率，占空比，配置定时器和IO口，最后用示波器显示相应通道占空比的
1
f成都理工大学毕业设计（论文）
方波即可。PWMisproducedbythetimerofSTM32ThecycleofPWMisthetimer’sregulartimeBycalculati
gthefreque
cyofsquarewavedutycycleco
figuri
gthetimera
dIOthe
useoscilloscopedisplayedthePWM
经对STM32开发板的研究学习，通过对STM32定时器等的配置，用示波器显示，完成了PWM输出。Basedo
theSTM32byco
figuri
gthetimerofSTM32PWMisdisplayedbyoscilloscope
关键词
STM32，定时器，PWM
StudyfortheoutputofPWMproducebytimerof
Abstract：
STM32Basedo
MDK
Withthedevelopme
toftech
ologyARMisusedi
varioussituatio
sO
thei
te
tio
ofstudyo
ARMtimerofSTM32producepulsesPWMwidthmodulatio
isstudiedi
thispaperPWMisthesquarewavewhichhasasuredutycyclea
dfreque
cyItsapplicatio
fieldsi
cludemeasureme
tcommu
icatio
powerco
trola
dtra
sformmotorco
trolservoco
troleve
someaudioamplifierThereforeitisimporta
ttoresearchPWMtech
ologyItiseasytousethetimerofSTM32toproducePWMoutputPWMisproducedbythetimerofSTM32ThecycleofPWMisthe
timer’sregulartimeBycalculati
gthefreque
cyofsquarewave
2
f成都理工大学毕业设计（论文）
dutycycleco
figuri
gthetimera
dIOthe
useoscilloscopedisplayedthePWMBasedo
theSTM32byco
figuri
gthetimerofSTM32PWMisdisplayedbyoscilloscope
Keywords：
STM32，timer，PWM
3
f成都理工大学毕业设计（论文）
目录
第1章前言511ARM应用背景r