Transcript Document
OrCad 9.2 in Sulautetut
sw module
user
files
Capture
Start Cadence PSD 14.0 Capture
Schematics, logical connections
File Open Project h8s_eval.opj Open
Example H8S_evalBoard.zip can be downloaded from :
http://www.ee.oulu.fi/~terva/Embedded2003/bulletin.php
File Save As name.opj Save As
change the name of the project.
Link to HW manual of the MCU is at:
http://www.ee.oulu.fi/~hannu/Embedded2003/mcus.php
Overview
Design pages
Offpage connector
Microcontroller H8S2128
GND (0v)
Library of
symbols
VCC (+5v)
Place a part
e.g a DB9 connector (for serial communication)
Place Part
in the Libraries field, select Sulautetut2 ,
in the Part List field, select DB9S ,
then Click OK .
To rotate a part :
Select a part (left click on the part) ,
CTRL-R .
Place a wire
Place Wire ,
Use the mouse to draw the wire.
Place an offpage connector
to connect 2 pins that are on different design pages,
! Give the same name on each of the pages, for one
connection.
Toolbar for wires,
parts,
GND, VCC,
offpage connectors ...
Design Rule check : unconnected nets, off-page connectors
Tools Design Rule Check
Nota: menu Tools is visible only when a design page is selected.
Create a netlist (.MNL)
Tools Create Netlist
Check the report messages in the Session Log window.
Automatic
update
CaptureLayout
Layout
Bottom/Top layer view
Pad :
Copper
Copper
(kupari)
Top layer
Bottom layer
Insulation
(eristys)
Hole
(reikä)
Padstack : list of
those dimensions for
one pad.
if copper on the interior of this
cylinder : pad is also via
Footprint : padstack(s) + obstacle(s)
(the current flows
between layers).
Start Cadence PSD 14.0 Layout
• File New
Default.tch / Metric.tch (inches/mm).
• then automatically, Layout asks the netlist file (.MNL) ,
• next the name of the main output file (.MAX)
• next the footprints of the components. .../...
Use the library EVALBOARD.LLB for the main components;
some footprints are missing, like the crystal resonator (Take
e.g., a capa footprint. The crystal is not needed when using
the emulator).
Link footprints
EVALBOARD
library
System settings : units
Options System Settings
Spacing between items: used as routing rules.
Options Global Spacing
Layers : 3 layers of interest
Tools Layers Select from Spreadsheet
Nets selections/settings :
Tools Nets Select from Spreadsheet
Select one or several net names ,and a pop-up menu (right click)
allows modifying the properties.
Create the board outline
(ToolObstacleSelect Tool)
Note
Place components (footprints) Online DRC OFF
For all modules
Enable a modular group of nets (e.g LCD_Connec)
Route those nets (e.g. autoroute) Note
Online DRC ON
Check out statistics of unrouted nets
Cleanup design/Design Rule Check
Create Reports
Run Post Processor
name.bot, name.top, thruhole.tap
Autorouting/Manual Route :
• Auto AutoRoute Board : autorouting
• Tool Track Select Tool , then use the mouse and right
button (select Finish in the pop-up to terminate a track).
Cleanup design/Design Rule Check :
• Auto Cleanup Design
Select All, and Check Detail Obstacle.
• Auto Design Rule Check
Select All, and Check Detail Obstacle.
Check statistics of unrouted nets :
• Auto Refresh Calculate Statistics
Check out the unrouted nets section.
Create Reports :
in order to see the location of unrouted nets.
• Auto Create reports
Check the ”Conns Unrouted” box.
• More detailed description of the previous steps :
http://www.ee.oulu.fi/~terva/Embedded2003/bulletin.p
hp
on ”Intro to Orcad” link.
• Even better description in the tutorial/help provided
in the software.
• Re-use the proposed example, the pad-to-pad
spacing, and other properties/settings have been
tested.
• The design is quite simple : two layers TOP and
BOT.
THRUHOLE.TAP contains drilling properties/settings.
Via
Text
on
top
layer
Obstacle