he LPC932 can be used to create a Pulse Width Modulated PWM signal. That s an analog signal, with only 2 discrete levels, for example 0V and 5V and a constant period. The current value of this signal at a certain poiTnt of time is proportional to its Duty Cycle. That s the High Time during one period divided by the period. It can also be calculated as the average value during a particular period. That means after low pass filtering, (e.g. RC circuit) the signal becomes analog, with an actual value controlled by the microcontroller. The PWM functionality enables the LPC932 to control for example the speed of DC motors or the brightness of electric lighting.
标签： signal Modulated analog create
上传时间： 2015-05-14
上传用户：CHINA526
SMS SDK classes.This is the archive that must be included in the classpath.
标签： classpath the included classes
上传时间： 2014-01-16
上传用户：410805624
good morning,my dear teachers,my dear professors.i am very glad to be here for your interview.my name is song yonghao,i am 22 years old .i come from luoyang,a very beautiful aicent city.my undergratuade period will be accomplished in changan university in july ,2004 and now,i am trying my best for o
标签： dear professors interview my
上传时间： 2015-05-24
上传用户：shus521
Decoding most of the infrared signals can be easily handled by PIC16C5X microcontrollers. This application note describes how this decoding may be done. The only mandatory hardware for decoding IR signals is an infrared receiver. The use of two types is described here. Both are modular types used often by the consumer electronics industry. The first type responds to infrared signals modulated at about 40 kHz. The second responds to non-modulated infrared pulses and has a restricted range. The hardware costs of each approach will be less than two dollars.
标签： microcontrollers Decoding infrared handled
上传时间： 2015-05-24
上传用户：ruan2570406
Far too many programmers and software designers consider efficient C++ to be an oxymoron. They regard C++ as inherently slow and inappropriate for performancecritical applications. Consequently, C++ has had little success penetrating domains such as networking, operating system kernels, device drivers, and others.
标签： programmers designers efficient consider
上传时间： 2013-11-30
上传用户：zsjzc
Displays CPU time usage, the list of processes (can be terminated) and the task which are running (can be close or switch to). Plus a little net traffic monitor and a disk status report.
标签： terminated the processes Displays
上传时间： 2013-12-25
上传用户：zgu489
gives an orthogonal feeling to tty s, be they consoles or rs-channels. It also implements echoing, cooked mode etc.
标签： rs-channels orthogonal implements consoles
上传时间： 2014-01-05
上传用户：894898248
AM调制及单边带调制 程序规范易懂,It will be helpful to you!
上传时间： 2014-08-27
上传用户：Avoid98
good book which should be read by the person who want to lean more about DRM, it is very important to give me feedback thx you
标签： important should person about
上传时间： 2013-12-07
上传用户：qw12
A graphics toolkit, Graf_Tool() is developed which can be used to process and edit graphics. Labels, lines and arrows can be added and the program is very flexible and easy to use.
标签： graphics Graf_Tool developed toolkit
上传时间： 2014-01-22
上传用户：huql11633
