PCB Design with EAGLE Layout Editor - PCB Design with EAGLE Layout Editor Motivation This tutorial explains how to design a printed circuit board(PCB

PCB Design with EAGLE Layout Editor - PCB Design with EAGLE...

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PCB Design with EAGLE Layout Editor Motivation This tutorial explains how to design a printed circuit board (PCB) for Microchip's PIC16F84 microcontroller using the EAGLE Layout Editor software. EAGLE is free and can be downloaded from the following web site: . This tutorial assumes the reader: Has a PC with the EAGLE software already downloaded and installed (see above) Knows how to read and interpret a schematic Constructing Your Circuit Schematic Before creating the PCB, we must first draw up the circuit schematic. We will be working from a schematic shown on the Boondog web site . This schematic will be simplified by removing the push-button switch on MCLR and replacing it with 5V and removing SW1 from pin A0. Let's begin by starting the EAGLE Layout Editor and select File => New => Schematic . Now let's start adding components to our schematic by clicking the Add button from the toolbar on the left.
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When the Add window pops up, navigate down to the Microchip library and expand it. Then move down to PIC16F8* and upon expanding it, you will find the PIC16F84AP microcontroller. Select this component and hit OK . Place the component somewhere in your schematic window by left clicking the mouse.
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After the above component is placed, the Add window will pop back up. Repeat this process for the following parts: Oscillator: crystal => QG5460 LED: led => LED => LEDSQR2x5 Resistor: rcI => R-US_0207/12 Capacitor: rcI => C-US => C-US025-025X050 +5V: supply1 => +5V GND: supply1 => GND After adding your last component click ESC, which will bring up the Add window again. Then select cancel to finish. Save your schematic when finished as pic16f84a.sch. Your window should now look like the one below.
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The next step is to wire up all the parts based on the schematic from the boondog web site. To ensure that we are wiring to component pins and not leaving any wires suspended in midair, turn on the Pins layer. Go to View => Display/Hide Layers => Pins => OK . Next, select the Net function from the toolbar on the left and left-click on the OUT pin of the clock and then left-click on the OSC1 pin of the PIC16F84A. Note: be sure to click in the center of the green circle when connecting Nets . After making your first connection, your circuit should now look like the one below.
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Repeat the above step to make all connections as shown on the schematic from Boondog's web site. Also, you can
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  • Fall '14
  • web site, Printed circuit board, EAGLE Layout Editor, boondog web site

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