ec501-embedded system slide 1
TRANSCRIPT
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EC501:Embedded system
What is the Embedded Systems?
An Embedded system is
a computer that has been built to
solve only a few very specific
problems.Source:wikipedia.org/wiki/Embedded_system
http://simple.wikipedia.org/wiki/Computerhttp://simple.wikipedia.org/wiki/Computer -
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EC501:Embedded systemAn embedded
system is a specialpurpose system thatis used to performone or few
dedicated functions.
Simply, we can call any
electronic device that
has a computer system
embedded inside it an
embedded system.
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EC501:Embedded systemEmbedded systems
are made to performfew tasks only, afterimplementation you
cant use them foranother purposes.
Ex. You cant watch
movies using themicroprocessor of your
microwave oven!!
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EC501:Embedded systemExamples:
Digital and analog televisions
Set-top boxes (DVDs, VCRs, Cable boxes)
Personal digital assistants (PDAs)
MP3s and iPod'sKitchen appliances (refrigerators ,microwave
ovens)
Telephones/cell phonesCameras
Global positioning systems
And many others.
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EC501:Embedded system
1. We do so by using microcontrollers
(or microprocessor based systems).
2. Or simply by using the digital circuits
that perform the function we want.
SO.. HOW DO WE IMPLEMENT THEM?
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EC501:Embedded system
WHAT IS A MICROCONTROLLER?
Its a full computer system on
a chip, even if its resources are
far more limited than of a
desktop personal computer.
Designed for stand aloneoperations.
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EC501:Embedded system So.. Whats the difference between a microcontroller
and a microprocessor system?
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EC501:Embedded systemA microcontroller has a processor and many peripherals
integrated with it on the same chip, like a flash memory,RAM, I/O ports, serial communication ports, ADC Etc.
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EC501:Embedded system
A timer module to allow the MCU to perform tasks forcertain time periods.
A serial I/O port to allow data to flow between the
MCU and other devices such as a PC or another MCU.
An ADC to allow the MCU to accept analog inputs for
processing.
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EC501:Embedded system
But a microprocessor cant do all the functions
of a computer system on its own, and needs
another circuits to support it like:I/O devices, RAM, ROM, DMA controllers, Timers,
ADC, LCD drivers.. Etc.
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EC501:Embedded systemCOMPARISON
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EC501:Embedded system
Did u know me?I m the part of
embedded systems