
This file contains important information for PC Board Layout
Tools 386+ version 2.22 that was not included in the printed
documentation. Please read the first three entries before you
install PCB 386+.


******************   !!!  IMPORTANT  !!!   ***********************
Please read these first two entries BEFORE installing PCB 386+
******************************************************************
------------------------------------------------------------------
Installing PCB 386+ while running 4DOS
------------------------------------------------------------------

Do not run the INSTALL program for PCB 386+ if you have 4DOS
loaded as your current command processor. Be sure COMMAND.COM is
the active command processor before you run the install program.
This is specified in the "SHELL=" line in your CONFIG.SYS file.

------------------------------------------------------------------
Manually updating ORCADESP.DAT using MERGEDAT
------------------------------------------------------------------
INSTALL checks your system to see if the ESP design environment
is installed.  If ESP is present, then the ORCADESP.DAT files in
your design directories are automatically updated.

If problems occur during this part of the installation, ESP
buttons that display on your PC Board Layout Tools screen will
not match those shown in the PCB 386+ documentation. You will
need to manually update the ORCADESP.DAT files using the
MERGEDAT program.

The INSTALL program places PCB386.MRG in the path you specify
for the ORCADESP directory (C:\ORCADESP if your directory
structure follows the default configuration). If you want all
your ORCADESP.DAT files updated for PCB 386+, enter this
command:

    MERGEDAT PCB386.MRG/A

This creates the file ORCADESP.DAT in all your design directories.
*******************************************************************


------------------------------------------------------------------
Copying PCB 386+ configuration files to all design directories
------------------------------------------------------------------

After installing PCB 386+ you need to copy the PCB 386+
configuration files PCB.BCF and PCB.CFG from the TEMPLATE or
TUTOR design directories to your other design directories. This
must be done so PCB 386+ works with all of your design
directories.

If you used PCB II with other designs, the PCB II configuration
files PCB.CFG and PCB.BCF are in the other design directories.
You need to rename these configuration files before copying the
PCB 386+ configuration files. 

------------------------------------------------------------------
Entering numeric values in ESP configuration screens
------------------------------------------------------------------

Do not exceed three decimal places for any numeric value entered
in ESP configuration screens. Unpredictable results may occur if
values with more than three decimal places are entered.

------------------------------------------------------------------
Configuring module libraries
------------------------------------------------------------------

If you do not have any module libraries configured in the
Configured Libraries list box of the Configure PC Board Layout
screen, then all module libraries in the Available Libraries
list box are searched. If a module library is configured in the
Configured Libraries list box, then only the configured library
is searched.

------------------------------------------------------------------
Specifying a path for the PCB 386+ template file
------------------------------------------------------------------

In the Miscellaneous Options section of the Configure PC Board
Layout screen, you must enter the complete path and filename for
the PCB 386+ template file, ORCADPCB._T_, if the file is located
in a different directory than your startup design directory.

If ORCADPCB._T_ is located in your startup design directory, you
can enter just the filename. PCB 386+ specifies the startup
design directory path.

------------------------------------------------------------------
Old netlist format files are renamed when you install PCB 386+ 
------------------------------------------------------------------

When you install PCB 386+, the install program checks your
system for the presence of the following netlist format files:

EDIF.CF
EDIF.CCF
FEDIF.EXE

You must use the netlist format file supplied with PCB 386+ to
create a netlist that is compatible with PCB 386+. When you
install PCB 386+, the install program renames the currently
installed netlist format files as shown below:

EDIF.CF      ------renamed to------  EDIFCF.OLD
EDIF.CCF     ------renamed to------  EDIFCCF.OLD
FEDIF.EXE    ------renamed to------  FEDIF.OLD

------------------------------------------------------------------
Display driver problems
------------------------------------------------------------------

EMS error from DRAFT
--------------------

If you did not install new display drivers when you installed
PCB 386+, you may encounter the error message "EMS error #160"
when you attempt to run DRAFT. You must install the new display
drivers supplied with PCB 386+.

Using GENDRIVE to create a new display driver
---------------------------------------------

PCB 386+ may freeze when it attempts to use a custom display
driver created with an old version of GENDRIVE. PCB 386+ uses
the display driver file creation date to verify that the display
driver is a new and compatible driver. The program freezes if
the driver passes the creation date requirements, but is not
compatible with the display driver requirements for PCB 386+.

Use version 4.40 or later of GENDRIVE to create custom display
drivers for use with PCB 386+.

------------------------------------------------------------------
Loading libraries from previous releases
------------------------------------------------------------------

For most efficient operation, load all of your existing
libraries from previous releases into PCB 386+ and save them out
to new names.

Note: Converted library files won't be 100% compatible with
previous versions of PCB 386+. Modules can't be deleted in the
old version and some menu dialog options may be missing.

------------------------------------------------------------------
Loading routed boards from previous releases
------------------------------------------------------------------

When loading routed boards from previous releases the initial
load may take several times longer than normal. This is due to
updating of the database to the new release version. Once saved
after loading this will no longer occur.

Note: Converted board files won't be 100% compatible with
previous versions of PCB 386+. Modules can't be deleted in the
old version and some menu dialog options may be missing.


------------------------------------------------------------------
Limits for pads and modules in autorouter functions
------------------------------------------------------------------
The following limits apply only when running the autorouter for
routing or DRC checking. They do not apply in the editor.

The limit on the number of pads per module has been increased
from 750 to 1000. Note that this limits a board loaded as a
module to having 1000 pads.

The combined limit of modules + test points has been increased
from 1800 to 2500.

------------------------------------------------------------------
Dealing with board objects that are off the work surface
------------------------------------------------------------------

When you load a board file, PCB 386+ checks for objects that are
outside the visible screen limits, called the 'work space.'

If the board file has objects outside the work space, PCB 386+
displays the Objects Outside of Work Space dialog box, which
contains the following options:

*  Delete               *  Delete All
*  Do Not Delete        *  Do Not Delete All

The type of object and the location of the object displays below
the options.  You can selectively delete objects, delete all
objects, or retain all objects outside the work space.

NOTE: If you retain all objects, and you have many objects
outside the work space, the board file size can become large.
Also, the board file may require more memory for some functions
because all objects are considered. If you encounter low memory
conditions, you may want to delete objects outside the work
space.

You can recover modules from outside the work space using the
PLACE Module command. Follow these steps:

1.  Select PLACE Module to display the Place Module dialog box.
2.  Select the name in the Module Name list box for the module
    that is outside the work space, then select OK. The module is
    attached to the pointer.
3. Move the module to its new location.

------------------------------------------------------------------
Loading a netlist containing duplicate time stamps

***** CAUTION *****
------------------------------------------------------------------

PCB 386+ cannot process a netlist containing duplicate time
stamps. If duplicate time stamps are encountered, an error
message displays.

Versions of SDT prior to SDT 386+ v1.10 are able to create
schematic parts containing duplicate time stamps. In these pre-
v1.10 versions the BLOCK Save command copies sections of a
schematic to a buffer. The BLOCK Get command retrieves the items
in the buffer and copies them to the worksheet. The copied
schematic parts have the same time stamps as the original source
parts.

To avoid duplicating time stamps, perform a BLOCK Export of the
section of the schematic you wish to copy, then do a BLOCK
Import of the file into the worksheet. The schematic parts in
the imported file receive new time stamps.

------------------------------------------------------------------
Engineering Change Order (ECO) layers for PCB 386+
------------------------------------------------------------------

Edit Layout has two board layers commonly used for Engineering
Change Orders, or ECOs. You enter engineering change information
on these layers, such as routing revisions or information about
modules that need to be changed or added.

You specify routing changes by drawing with outline segments. Do
not use the ROUTE command to place tracks on the ECO layers. Use
a color that distinguishes the ECO layer from the other layers.
Select PLACE Text to enter text on the ECO layers.

------------------------------------------------------------------
Determining the filename of the current board file
------------------------------------------------------------------

Before you select QUIT Update Board File to save the current
board file, you can determine the filename it will be saved to
by following these steps:

1. Select QUIT Initialize Board File. The filename of the loaded
board is highlighted in the Files list box on the Initialize to
Board File dialog box.  

2. Select Cancel to close the dialog box.

------------------------------------------------------------------
Deleting a copper tool in PCB 386+
------------------------------------------------------------------

If you attempt to delete a copper tool that is still used by an
object, you receive a notice stating that the copper tool is
being used and it cannot be deleted. If you assign a different
copper tool to the object but you still cannot delete the
original copper tool, check objects that remain in the undelete
buffer. If an object in the undelete buffer uses the copper
tool, permanently delete the object or select QUIT Flush
Undelete Buffer to remove all objects from the undelete buffer.

You should be able to delete the copper tool. Another
possibility is that the copper tool is used as a default for
something in the Current Settings dialog which also prevents
deletion. This same situation can occur when deleting pad stacks
or drills.

------------------------------------------------------------------
Working with planes in PCB 386+
------------------------------------------------------------------
Planes: General information
---------------------------

When a layer is enabled as a plane and assigned a net name, the
plane does not display in PCB 386+. You can select a different
display color for the plane layer, but the plane is invisible.

Starting with PCB 386+ v2.21 you can place fill zones, nofill zones, and
tracks on plane layers.

Connectivity and thermal relief is automatically created between
the plane and all through-hole pads and vias assigned to the
same net. SMT pads are connected to planes when they are
autorouted using the Dispersion option.

Suggested autorouting procedures are described below for boards
that use planes and have already been dispersion routed:

1.  Select GO TO FUNCTION, then select Net Property Editor from
    the menu. The Edit Net Properties dialog box displays.
2.  Select the net in the Net Names list box that is assigned to
    the plane.
3.  Enable Do Not Route Net and Lock Existing Routes, then select
    Selected Net. If necessary, select additional nets and options
    and select Selected Net for each net. Select OK to accept
    the new settings and close the dialog box. This prevents the
    autorouter from routing the selected net - it is already
    routed to the plane.
4.  If desired, display the Copper Colors/Enables/... dialog box
    and disable the plane layers if no autorouting barriers are on
    them. This saves autorouter time and memory.

     NOTE: If you do this, be sure to enable the plane layers before
           you plot the board.

5.  Select GO TO FUNCTION Autorouter.
6.  Select Set to display the Autoroute Options dialog box, then
    select autorouting options and select OK.
7.  Select Whole Board, then select Autoroute Whole Board from
    the menu to route the remaining nets.

Maximum number of characters for a netname assigned to a plane
--------------------------------------------------------------
Do not create a netname containing more than 21 characters for a
net you intend to assign to a plane. If a netname has more than
21 characters it cannot be selected as a plane in the Copper
Colors/Enables/... dialog box. The netname does not display in
the netname droplist box for a plane layer because the netname
becomes the layer name, and layer names cannot be longer than 21
characters.

Display of plane layer names in layer droplist boxes
--------------------------------------------------------------
In layer droplist boxes layer names for planes are shown with a
preceding number such as " 1 - " or " 2 - " to distinguish
between having more than one plane layer assigned the same name.

------------------------------------------------------------------
PCB 386+ zone information
------------------------------------------------------------------

Z-Order
---------------------

You can place fill zone within fill zones if you use Z-Order. 
Refer to the Z-Order option in the PC Board Layout Tools 386+
v2.20 Update Guide.

Overlaying fill zones 
---------------------

Do not place a fill zone within another fill zone. No isolation
is created between the zones if they are assigned different
nets.  See Z-Order above.

Placing a fill zone on the All External Copper layer
----------------------------------------------------

Do not place a fill zone on the All External Copper layer. The
fill zone on each external copper layer contains isolation for
both Component Copper and Solder Copper objects. Instead, create
two separate fill zones.

------------------------------------------------------------------
DRC checking 
------------------------------------------------------------------

DRC checking on tracks constructed with arc segments
----------------------------------------------------

DRC checking in Edit Layout may report a clearance violation
between a copper object and tracks constructed with arc
segments, even though no violation exists. To guarantee proper
clearance between arc tracks and other copper objects, follow
these steps:

1.  Select SET to display the Global Options dialog box.

2.  Enable Show Highlight Guard. This displays the
copper-to-copper spacing for highlighted copper objects. You can
also enable Show Copper and Guard While Drawing to display the
copper-to-copper spacing for all copper objects that are already
on the board.

3.  Enable Show Copper And Guard While Routing. The copper-to-
copper spacing for the arc segments displays while you route.

4.  Select OK to close the dialog box.  5.  Zoom in on the area
you are routing with arc segments and use the displayed guard
bands as a visual guide to determine if you are routing too
close to another copper object.

Deleting DRC violation markers
------------------------------

Do not select Delete DRC Violations in the Autoroute Options
dialog box to delete DRC markers. Selecting Delete DRC
Violations deletes the offending tracks during autorouting.
Instead, follow these steps:

1.  Correct all DRC violations.
2.  Select GO TO FUNCTION Autorouter.
3.  Enclose the corrected area within a block.
4.  Select Spacing/DRC Check Block. The Finished dialog box
    displays the number of DRC violations. Select OK.

If the number of violations is zero, all DRC markers are
deleted. If DRC violations are still reported for areas
containing arc tracks, and you know there is adequate clearance,
follow these steps to delete those DRC markers:

1.  Select LAYER to display the Layer dialog box.
2.  Select Comment Layer, then select OK. When the Comment Layer
    is active, you can delete DRC markers without accidentally
    deleting other objects.
3.  Place the pointer on the DRC marker and select DELETE.

You can prevent PCB 386+ from displaying the DRC markers using
this method:

1.  Press <Esc> to dismiss the Autorouter menu.
2.  Select SET to display the Global Options dialog box.
3.  Disable Show DRCs, then select OK. DRC markers do not display.

------------------------------------------------------------------
Matching PCB 386+ plots and NCDRILL files
------------------------------------------------------------------

PCB 386+ mirrors plots on the Y axis if the Mirror Y button in
the Advanced Printing and Plotting Options dialog box is
disabled. If you enable Mirror Y, plots are not mirrored on the
Y axis.

To create matching artwork and drill files, follow these
procedures:

Unmirrored plots and drills
---------------------------
1.  Plot the board file with the Mirror Y option enabled. The
    plot will not be mirrored.
2.  Run NCDRILL without the /FLIP Y option.

Mirrored plots and drills
-------------------------
1.  Plot the board file with the Mirror Y option disabled. The
    plot will mirror.
2.  Run NCDRILL with the /FLIP Y option.

------------------------------------------------------------------
Running NCDRILL_ on a board with disabled layers
------------------------------------------------------------------

When you run NCDRILL_.EXE with the /ENTIRE switch, it looks at
all of your enabled copper layers to determine where your drill
holes start and stop. Any copper layer on which you placed a
pad, a trace, or a zone should be enabled before you run
NCDRILL. If you have a one layer board, you should enable both
the Component Copper and Solder Copper layers before running
NCDRILL.

------------------------------------------------------------------
Flipping modules
------------------------------------------------------------------

Setting proper SMT pad angles for flipped modules
-------------------------------------------------

SMT pads may not be oriented at the correct angle when a surface
mount module is flipped to the other side of the board. To
orient the pads properly, you rotate the module to the desired
angle after you flip it to the other side of the board.

Preventing the shifting of flipped modules
------------------------------------------

When you flip a module the module may shift its relative
position. The shift occurs because the pointer becomes the
center point for the flip function.

To make sure that the module does not shift, select the module
from its center, if possible. Also, the module does not shift if
you block select the module so it is centered within the block.

------------------------------------------------------------------
Mirroring objects in the board editor
------------------------------------------------------------------

Be sure Allow Move/Edit/Delete of Module Elements is disabled in
the Global Options dialog box before you block select an area of
your board and attempt to mirror the objects within the block.
When Allow Move/Edit/Delete of Module Elements is disabled,
modules inside the block do not mirror with the rest of the
objects.

------------------------------------------------------------------
Memory problems while running PCB 386+
------------------------------------------------------------------

Configuring a PIF file to avoid PCB 386+ low memory in Windows
--------------------------------------------------------------

When PCB 386+ is run from DOS it displays a low memory error
message if the available RAM and virtual memory swap file disk
space is almost completely consumed. The error message does not
display if PCB 386+ is run under Windows.  Unexpected behavior
can occur if insufficient memory is available.

If you do not use a unique PIF file to start PCB 386+ under
Windows, Windows uses the memory settings in DOSPRMPT.PIF. The
default memory settings in DOSPRMPT.PIF may be insufficient.

You can increase the amount of available RAM if you create a new
PIF file, enter the necessary parameters to run PCB 386+, and
increase the values in the KB Required and KB Limit entry boxes
for XMS Memory. For example, if you have 8 megabytes of RAM,
enter 4000 (4 MB) in the KB Required entry box and enter 8000 (8
MB) in the KB Limit entry box.

Save this PIF to a new filename, then select the PCB 386+ icon,
select File Properties, and enter the new filename in the
Command Line entry box of the Program Item Properties dialog
box.

Virtual memory availability while running PCB 386+ under Windows
----------------------------------------------------------------

When you run PCB 386+ under windows the configured PCB 386+
virtual memory swap file is disabled and PCB 386+ uses the
Windows swap file. This reduces the speed of some operations.

You may encounter low memory situations if you edit a large
board and the amount of virtual memory is insufficient. The
Windows swap file does not dynamically increase its size as
program demands increase.

Virtual memory capacity warnings
--------------------------------

To successfully load a board file, the virtual memory swap file
size (in bytes) must be at least twice the size of the board
file.

PCB 386+ issues a warning if the swap file size is less than
three times the size of the board file.

Acquiring more virtual memory
-----------------------------

To prevent low memory conditions, provide as much contiguous
free disk space as possible for the swap file. Delete files and
defragment the disk, or place the swap file on an empty
partition.

Do not save a board file when "Out of Memory" displays
------------------------------------------------------

Do not try to save your board file if an "Out of Memory" message
displays in PCB 386+. The Phar Lap virtual memory swap file is
corrupted because of insufficient disk space.

EMS message for PCB 386+ utilities
-----------------------------------

If you do not have enough EMS memory while running a PCB 386+
utility program, you may encounter a message similar to these:

    EMS error, code 8A  from function 0044
    EMS handle 5

    ERROR (FROMPCB2), Error accessing EMS, requested
    output will be incomplete

The code, function number, and EMS handle number varies
depending on system conditions. The utility encountering the EMS
memory problem displays in parentheses.

Out of memory messages from PCB 386+ utilities
----------------------------------------------

Use the /Page_Size switch to provide additional memory for
processing. The following utilities use the /Page_Size switch:

COMPNET_.EXE      FIXTIME_.EXE      REANNO_.EXE
MODLOC_.EXE       

----------------------------------------------


See Appendix A in the PC Board Layout Tools 386+ Reference Guide
for information about these utilities and the /Page_Size switch.
You select the /Page_Size switch in ESP by enabling Specify RAM
page size, then selecting 4096, 2048, or 1024.

------------------------------------------------------------------
Abnormal program termination: Device Not Available message
from PCB utilities
------------------------------------------------------------------

If the time stamps of the ASCII (PCB.CFG) and binary (PCB.BCF)
tool set configuration files differ, then PCB386.EXE or its
utilities will attempt to run the program PCB_C.EXE to compile
the ASCII tool set configuration. On systems with early
(pre-1990 versions) of system BIOS (Dell Phoenix or AMI American
Megatrends Inc.) running with memory managers (early versions of
Quarterdeck's QEMM or current versions of Microsoft EMM386), the
programs will abort and report: "Abnormal program termination:
Device Not Available."

To avoid this problem, use the ESP Design Environment, Configure
PC Board Layout screen to manipulate the PCB 386+ tool set
configuration, or run the command line:

PCB_C/B

to compile the ASCII tool set configuration.


------------------------------------------------------------------
Running under Windows 3.1
------------------------------------------------------------------

Running multiple sessions of ESP under Windows 3.1
-------------------------------------------------------

You can run multiple sessions of ESP under Windows 3.1 and
Windows for Workgroups, but not under Windows 3.0. SHARE.EXE
must be loaded. You will need to monitor memory consumption if
you use the PCB 386+ autorouter.

Suspending to DOS from PCB 386+ while running in Windows
--------------------------------------------------------

If you are running PCB 386+ from Microsoft Windows and you need
to access the DOS command line, it is recommended that you do
not select Suspend to System from PCB 386+.

Suspending to system from PCB 386+ while running it in Windows
may cause an abnormal program termination when you exit from the
DOS session and return to PCB 386+. This may occur if you run
certain applications that detect 386/486 processors, such as the
new versions of PKZIP and PKUNZIP.

Instead, display the Program Manager and double-click on the
MS-DOS Prompt icon to start a DOS command line editing session.
After you run your DOS commands, leave the DOS session open if
you may need to enter commands later, then switch to PCB 386+.

Selecting an OrCAD icon in Windows
----------------------------------

When you install PCB 386+, an OrCAD icon (ORCAD.ICO) is
installed in your ORCADEXE directory. You can use this icon for
your OrCAD applications that are installed in the Windows
Program Manager. Follow these steps to change the icon to
ORCAD.ICO:

1.  Select the icon for the OrCAD application you wish to change.
2.  Select File from Program Manager. The menu displays.
3.  Select Properties... to display the Program Item Properties
    dialog box. The current icon displays in the dialog box.
4.  Select Change Icon... to display the Change Icon dialog box.
    The path for the icon displays in the File Name entry box, and
    the current icon displays in the Current Icon select box.
5.  Select Browse... to display the Browse dialog box.
6.  Change the directory to your ORCADEXE directory.
7.  Select ORCAD.ICO in the File Name list box, then select OK.
    The dialog box closes and the new icon and directory path
    displays in the Change Icon dialog box.
8.  Select OK. The Program Item Properties dialog box displays,
    and the new icon displays in the dialog box.
9.  Select OK. The dialog box closes and the new icon displays
    for the OrCAD application.

------------------------------------------------------------------
Communicating with invalid devices or ports in PCB 386+
------------------------------------------------------------------

PCB 386+ uses various functions which communicate to devices,
such as floppy drives, network drives, and serial/parallel
communication ports. If the device or port is inactive or
invalid you may encounter problems.

For example, you may direct PCB 386+ to write a file to a floppy
drive that does not contain a floppy disk. You could also direct
PCB 386+ to plot a file to the COM port assigned to your mouse.

If you run PCB 386+ from DOS, an error message displays for
either of these cases. The error message describes the status of
the device, such as "Write fault error writing device COM2." The
error message also displays "Abort, Retry, Ignore, Fail?" as
choices of action. Please choose the action carefully.

CAUTION: Selecting "Abort" causes PCB 386+ to halt operation and
         return to DOS without saving the current state of your
         board. You will need to reset your computer. If at all
         possible, do not select Abort.

It is a good idea to save your board file before attempting to
access different devices.

If you can correct the problem, such as placing a floppy in the
empty floppy drive, select "Retry" and the process will continue
normally.

If you cannot correct the problem, such as directing PCB 386+ to
print or plot to the COM port that your mouse uses, select
"Fail." This option halts device access, but PCB 386+ continues
operation, displaying a "Printer output error" message. Your
mouse is disabled, so you will need to press <Enter> to dismiss
the error message. You can use the cursor keys and shortcut keys
to move the pointer. Select the commands to save your board file
and quit PCB 386+, then return to DOS. Reload your mouse driver,
if necessary.

If you run PCB 386+ under Windows 3.1 and perform the same
actions, the "Abort, Retry, Ignore, Fail" error message does not
display. However, the "Printer output error" message does
display. Use the arrow and shortcut keys to save the board file
and exit to the Program Manager, then restart PCB 386+.  The
mouse will be restored.

------------------------------------------------------------------
Printing to a serial port
------------------------------------------------------------------

If your printer is connected to a serial port, you need to run
the DOS MODE command before you start PCB 386+ and attempt to
print to the serial device.  MODE configures the communication
settings for the serial port.

If your printer is connected to COM1, and your other
communication parameters are 9600 baud, no parity, 8 data bits
and 1 stop bit, you enter the following command at the DOS
prompt:

        MODE  COM1:  9600,N,8,1

After you enter the command, run PCB 386+ and select COM1 in the
Output Configuration dialog box to print the pages in the board
file.

If the port has not be set up correctly and your layout is large
enough to overflow the COM port buffer, you will see the
message:

Unable to write printpath. MS DOS Error #14 Disk is Full

If you are running under Windows, you will need to enter this
command before invoking Windows. The most convenient way to make
sure that this command is issued is to put it into your
AUTOEXEC.BAT file.

If you prefer to enter the mode command after Windows is
running, you need to go to the Windows Control Panel for Ports.
Click on the COM port in question, and then Settings. Change the
control flow setting to hardware. Now entering the mode command
in a DOS prompt window will change the setting.

------------------------------------------------------------------
Gerber viewer problems
------------------------------------------------------------------

Some Gerber viewers may inaccurately display pad orientations or
connections between some pads and planes or fill zones. The
situation occurs because some viewers may not properly interpret
data in Gerber (274-X) files, while others may misrepresent Fire
9xxx or Gerber (274-D) files.

If your present Gerber viewer displays unexpected pad
orientations, or shows other objects in unusual ways, view the
Gerber files with another viewer.

Shareware versions of both DOS and Windows-based Gerber viewers
are available on the OrCAD bulletin board.

Downloading a demo Gerber viewer from the OrCAD bulletin board
---------------------------------------------------------------

Both Windows and DOS versions of Gerber viewers are available on
the OrCAD bulletin board. You can download these files from the
Customer Contributed Programs section of the Board Layout Tools
area.

The phone number for the OrCAD bulletin board is (503)671-9401.

Lavenir Gerber viewer settings for arcs
----------------------------------------

Arcs in Gerber files produced by PCB 386+ may display enlarged
or distorted when the Gerber file is displayed in a Lavenir
Gerber viewer. Select "Quadrant interp" from the Lavenir viewer
options. Arcs will display correctly after selecting the option.


------------------------------------------------------------------
Printing circles placed as four arcs
------------------------------------------------------------------

When you place a circle as a circle, you get a circle object.
When you place a circle as four arcs, you actually create an
outline object that contains four arcs. The outline object
prints as an outline.

Enable Outlines in the Printing and Plotting dialog box to print
circles placed as four arcs.

------------------------------------------------------------------
Corrections to the PCB 386+ printed documentation
------------------------------------------------------------------

The following entries are corrections to the PCB 386+ printed
documentation:

PC Board Layout Tools 386+ User's Guide
---------------------------------------

Addendum
--------

Chapter 3 (begins on page 19). This chapter describes how to
transfer a design from OrCAD's Schematic Design Tools to PCB
386+. The procedures and figures depict version 4.30 of the ESP
design environment and version 1.10 of Schematic Design Tools
386+.

The following figures shown in chapter 3 are unique to ESP v4.30:
 *  Figure 3-2.  Design Management Tools screen, Design View.
 *  Figure 3-6.  The Schematic Design Tools screen.
 *  Figure 3-8.  Partial view of the Configure Schematic Design
                 Tools screen, Library Options section.
 *  Figure 3-12. The Configure Update Field Contents screen.

The following menus shown in chapter 3 are unique to ESP v4.30 or above:
 *  Configuring INET, Local Configuration
 *  Configuring ILINK, Local Configuration
 *  Configuring IFORM, Local Configuration

The following changes apply if you use SDT Release IV and SDT
386+ v1.0X:

In the section "Viewing key fields," there are no preconfigured
key field entries in the Configure Schematic Design Tools
screen. The key fields must be defined by the user.

In the section "Updating Field Contents," TUTOR.STF is not
selected from the Files list box. The name of the update file
must be entered in the Update file entry box. Also, Part Field 8
is not automatically selected in the Field to be updated section
of the Configure Update Field Contents screen. The part field
must be defined by the user.

In the section "Checking design integrity," there is no Check
Design Integrity tool to configure and incrementally execute
Cleanup Schematic, Cross Reference Parts, and Check Electrical
Rules. The processors must be selected individually.

The following changes apply if you use SDT Release IV only:

In the section "Creating the netlist," the "Configuring IFORM"
procedures describe selecting FEDIF.EXE in the Netlist Format
list box. You select <EDIFfilename>.CF or <EDIFfilename>.CCF in
this list box.

Errata
------

Page 38. The picture does not match the software. Part Field 8
has been renamed Module Value and the two "Convert" options have
been rephrased.

Page 39. Step 8 is not needed.

Page 47. The picture should show that the Ignore Warnings option
has been selected.

Page 48. Step 6 should read, "Select the Ignore Warnings option.
Then select OK."

Page 55. The Driver Prefix shown in the picture should be
C:\ORCADESP\DRV\

Page 116. Step 5 should read "Place the pointer in the center of
'module', as shown at right."

Page 139. Step 1 should say to select OK after selecting ORIGIN.
After selecting OK the origin changes.

Page 143. Steps 7 and 8 repeat information from the bottom of
page 142.

Page 259. Step 2 says that 32 pens can be configured. The
correct number is 31.

NOTES: The Module Value key field and Part Field 8 are one and
the same.

The module footprint for U2, U3, and U4 on DEMO.BD1 and
PLACED.BD1 is incorrect. The part is a 22V10, which should be a
narrower footprint.  The incorrect module footprint is also in
TUTOR4.MLB, the module library that is used when you load a
netlist in Chapter 6: Placing the TUTOR board.

PC Board Layout Tools 386+ Reference Guide
------------------------------------------

On page 135 the heading "Copper Tool" in the edit zone dialog
should actually read "Zone Boundry Copper Tool". In addition the
width should be displayed to the right of the copper tool
selected.

Page 137. This information should be added to the discussion of
Fill Pattern Type option on the Edit Zone Properties dialog box.
There are six fill pattern types available. They are:

     Horizontal
     Vertical (the default)
     Cross hatch (both Horizontal and Vertical)
     Left 45 degree 
     Right 45 degree
     Cross hatch 45 degree (both Left 45 and Right 45)

On page 214 the netlist load option "Delete unconnected Test
Points" should read "Delete <No Net> Test Points". When this
option is selected Test Points which have no net assignment, or
those in a net which is removed during the netlist load, are
deleted.

Figure 6-1 on page 304 in Chapter 6: Create NC Drill File should
contain a radio button for "Excellon trailing zero suppressed",
the radio button for "Excellon leading zero" should read
"Excellon leading zero suppressed", and the buttons to specify
the RAM page size have been removed.

------------------------------------------------------------------
PC Board Layout Tools 386+
        version 2.21
        Update Guide

Errata
------
On page 7:  The proper command line under Modify Modules is:

MODMOD_ my.bd1 my.asc /all /version 2.00
(Note the placement of spaces, and the use of the /all switch.)
------------------------------------------------------------------
Importing plots into Microsoft Word
------------------------------------------------------------------

The documentation shipped with Microsoft Word states that it
will import HPGL files as pictures embedded within your
document. Microsoft Word actually imports HPGL2 files. Note that
because of limitations in the graphic filters shipped with Word,
the pads will not be filled and all lines will be printed one
pixel wide rather than at the width indicated in the plot file.

Beginning with release 2.00, you may embed Postscript files from
PCB 386+ as pictures within Microsoft Word. The pictures will
print from within your document smaller than the original plot
but will otherwise be perfectly rendered in every respect. While
editing your document, the embedded postscript picture will
appear as a simple frame with only the identifying text
displayed on the screen. If the file is sent to a Postscript
device, it will be plotted correctly and both the frame and the
identification text will vanish. If printed to a raster printer,
the plot will appear exactly as shown on your screen which is
effectively worthless. OrCAD has verified that as documented in
the Microsoft Knowledge Base, PSS ID Number Q104557, embedded
Postscript files will not display their graphic contents under
Windows NT version 3.1 no matter which output device is selected
from within Word.  However, embedded postscript files appear to
print properly from within Word running under Microsoft Windows
3.11.

------------------------------------------------------------------
How to interrupt a copper pour
------------------------------------------------------------------

If Show Copper Pour has been enabled from the Set Global Options
menu zone fills can be interrupted pressing the <ESC> key.

------------------------------------------------------------------
Loading of .PFG file can cause temporary unit switch.
------------------------------------------------------------------

Loading a .PFG(Print/Plot Configuration File) that has been set
for inches into a board that has the 'Display Metric Dimensions' 
option set, can cause the display to temporarily revert back to inches
after exiting the Printing and Plotting menu. To restore the units back
to millimeters, re-enter the Global Set menu and select OK. Then go
back to the Printing and Plotting dialog and re-save the .PFG file
setup, it will now match the setting in the Global Set Menu.
