Orcad 9'2

1
Orcad 9.2

• Embedded System Project

2
Orcad Capture

• Capture is an electronic design environment
• Capture is used to draw a schematic design of
  your electronic device
• Logical connections
• Part symbols
• Starting Orcad Capture (in Windows)
• Start Programs Cadence PSD Capture

3
Orcad Layout

• Layout is a circuit board layout tool
• Layout is used to design the physical printed
  circuit board (PCB) of your electronic device
• A netlist (.MNL file) produced by the Capture
  tool is used as an input to the Layout tool

4
Orcad Layout (contd)

• Starting Orcad Layout (in Windows)
• Start Programs Cadence PSD Layout

5
PCB Design Process

• Create a new project with Orcad Capture
• Draw the schematic design of you device
• Part symbols
• Logical connections between parts
• Create the netlist (.MNL file) from your
  schematic design

6
PCB Design Process (contd)

• Start Orcad layout
• Load a technology template file (.TPL or .TCH
  file)
• Load the netlist (.NML) file created with Orcad
  Capture

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PCB Design Process (contd)

• Design the PCB of your device
• Draw the outline of your PCB
• Place physical components (footprints)
• Draw physical (copper) connections between
  components
• Finally, post process your PCB design which will
  produce files (.TOP, .BOT, .TAP) for the PCB
  milling machine (located in SÄ125).

8
PCB Design Process (contd)

• Send the three files (.TOP, .BOT, .TAP) to Kirsi
  Kullaa (kirsi.kullaa_at_ee.oulu.fi) for
  manufacturing of your PCB

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Sample project

• LED driver

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Components

• ATmega32 micro controller
• LED
• Power connector
• Decoupling capacitor

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File-New-Project
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Right click library Add File
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Open EMBEDDED2004.OLB
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Place-Part(ATmega32)
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MCU in place
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..place capacitor
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..and DC-connector
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..and LED
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Place wires, powers and grounds
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Tools-Create Netlist
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Select Layout-OK
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Start Orcad layout
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File-New load template
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..and the netlist file and save
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Place parts
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Draw board outline
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Route PCB
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Auto-Run Post Processor
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Check for milling files
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More Information

• Orcad Capture
• Help Learning Capture
• Orcad Layout
• Help Learning Layout