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How to use Proteus for circuit design

Important: As Proteus does not bound us to connect power supply, XTAL,reset circuit,EA pin and other basic connections so we are ignoring them for sake of simplicity. The important things like Xtal frequency of micro controller can be set from properties of micro controller, as discussed below.

While in actual hardware form for you must follow basic circuit shown at very beginning of this post.
1) Open Proteus

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2) Click on “P to open up part list.
Locate AT89C51 IC as shown below:
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3) Locate LEDs as shown below

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4) Make connections from 8051 to LEDs

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5)Locate GND terminal as shown below

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6) Connect all LEDs to GND
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7) Double click on 8051 IC to open up its properties window.

— Set the operating frequency i-e 12.0MHz
— Give controller the desired HEX file.
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8) Click on Play Button to start simulation
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CIRCUIT SHOULD START WORKING AS SHOWN BELOW

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