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基于STM32定时器产生PWM的研究毕业设计论文.doc36页
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基于STM32定时器产生PWM的研究
随着科技水平的提高, ARM的应用越来越广泛。With the develop of technology, ARM is used in various situations.
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。On the intention of study on ARM, timer of STM32 produce pulses PWM width modulation is studied in this paper.
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。PWM is the square wave which has a sure duty-cycle and frequency. Its application fields include measurement, communication, power control and transform, motor control, servo control, even some audio amplifier. Therefore it is important to research PWM technology.
本设计采用?STM32定时器产生PWM。It is easy to use the timer of STM32 to produce PWM output
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方波即可。PWM is produced by the timer of STM32. The cycle of PWM is the timer’s regular time. By calculating the frequency of square wave, duty-cycle, configuring the timer and IO, then use oscilloscope displayed the PWM.
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。Based on the STM32, by configuring the timer of STM32, PWM is displayed by oscilloscope.
STM32,定时器,PWM
Study for the output of PWM produce by timer of STM32 Based on MDK
With the development of technology, ARM is used in various situations. On the intention of study on ARM, timer of STM32 produce pulses PWM width modulation is studied in this paper. PWM is the square wave which has a sure duty-cycle and frequency. Its application fields include measuremen
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基于单片机的超声波测距功能设计
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毕业设计(论文)基于单片机的多功能定时器设计完整论文.doc45页
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近年来随着科技的飞速发展,“定时器”总的来说有两种类型。一种是基于模拟技术的传统产品,这种定时器功能简单,尽管曾被广泛用过,但已进入淘汰之列。另一种是基于数字技术的新一代产品,这种产品功能强,是前者的替代之物。
本设计开发了一种基于单片机的多用途定时器。它造价低,功能全,整体功能性价比高,可适应各种场合的定时预警之用。
本设计是经典的单片机定时功能应用设计。设计中应用了单片机定时器的设计功能、单片机的中断使用方法及LED显示等技术。可以实现任意时间和日期的显示,而且每个时间的初值可以改变,并且可以有闹铃定时的功能和加之数码管的闪烁的提示功能。
本设计的硬件电路主要包括:STC89S52单片机、DS18B20温度传感器。在硬件的设计的基础上,通过软件进行发光二极管指示程序、键扫描程序和数码管的显示程序的设计,最终完成本设计。
关键词:定时器;STC89S52单片机;DS18B20温度传感器;
In recent years, with the rapid development of science and technology, "the timer" generally has two types. One is the traditional product-based simulation technology. This
kind of timer function is simple, although it has been widely used, has been behind
the phase-out list. The other is a new generation of products based on digital technology. This
kind of timer product is of features a strong alternative to the former things.
The paper designs and develops a microcomputer-based multi-purpose timer. It is of low cost, full function and overall function of the price high and can be adapted to a variety of occasions, the timing of early warning purposes.
The design is classic single chip timing applications. Design use of microcontroller design features timer, microcontroller interrupt and LED display to use technology. Can be
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带日历电子钟设计.doc64页
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带日历电子钟
随着电子技术的迅速发展,特别是大规模集成电路的出现,确实给人类生活带来了根本性的改变,单片机技术的应用产品也已经走进了千家万户。时间的流逝,至从观太阳、摆钟到现在电子钟,人类不断研究,不断创新纪录。
本文首先描述系统硬件工作原理,并附以系统结构图加以说明,着重介绍了本系统所应用的各硬件接口技术和各个接口模块的功能及工作过程;其次,详细阐述了程序的各个模块和实现过程。本设计以数字集成电路技术为基础,单片机技术为核心。本文编写的主导思想是软硬件相结合,以硬件为基础,软件为主导,来进行各功能模块的编写。
本系统以AT89S52单片机为控制核心,以DS1302实时时钟电路对年、月、日、星期、时、分、秒进行计时,还具有闹钟报警功能,同时用汇编语言和C语言进行软件设计,增加了程序的可读性和可移植性。系统通过LCD液晶显示芯片显示数据,所以具有人性化的操作和美观的效果。
关键词:AT89S52;DS1302;LCD1602液晶显示;动态扫描;单片机
With the design of electric clock calendar
With the rapid development of electronic technology, especially with the emergence of large-scale integrated circuits, to human life brought about fundamental changes. Its single-chip technology is the product has entered the tens of thousands of households. The emergence of the electronic calendar to people’s lives is brought about by a lot of convenience.
This article will first describe the working principle of the system hardware with the system block diagram to illustrate the structure , highlighted by the application of the system interface technology of the hardware and the interface module functions and work processes, and secondly, the procedures described in detail the various module and the realization of proc
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