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Trouble Shooting Problems Using OrCAD/SDT III Within PALASM 4.
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PALASM 4 should be compatible with all versions of OrCAD/SDT III from
version 3.21 or later. Earlier versions or the latest version 4.0 will not
work successfully with the PALASM 4 interface programs.

Before installing the MACH libraries and the PALASM 4 interface you must
have already successfully installed the OrCAD/SDT III software. Before
starting your PALASM 4 installation you must note the drive and directory
where the OrCAD/SDT executables are located. You will be requested to input
this information during the installation process.

The following OrCAD programs are used by PALASM 4 to process data:

        1. DRAFT.EXE    ...     Schematic Editor.
        2. FASTSCAN.EXE ...     Build list of all separate sheets.
        3. CLEANUP.EXE  ...
        4. ANNOTATE.EXE ...     Annotate signals across schematic.
        5. ERC.EXE      ...     Schematic Error Check.
        6. CROSSREF.EXE ...     Schematic signal cross-reference list
        7. INETLIST.EXE ...     Schematic to JNL netlist translator.

It should be noted that although PALASM 4 will successfully trap errors
generated from the OrCAD software, the on-line help does not currently
recognize them and give additional help.

Errors while compiling Schematics
---------------------------------

The most common problem with an OrCAD/PALASM 4 installation is the
correct definition of ORCADSDT.OVL. This file is used by the OrCAD
software to define the paramters and libraries to be used by the OrCAD
software. When ORCADSDT.OVL is not in the local working directory the
PALASM 4 software automatically copies it from the directory used to
store the OrCAD executables. So keep an up-to-date copy in this
directory. To use the OrCAD software a copy of this file must be
located in every working directory.
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If there is a problem with the integration of the OrCAD and PALASM 4
software, during the compilation, the OrCAD software will typically
error with:

        MS-DOS error #2 (or #3)

To fix this error you must exit the PALASM 4 menu and return to the
DOS command prompt.

**********************************************************************
* the steps below demonstrate how to update the ORCADSDT.OVL file
* using default directory information. You must substitute the correct
* directory information used during your install of PALASM 4 and OrCAD/SDT.
*********************************************************************

Move to the main ORCAD executable directory:

        C: [enter]
        CD \ORCAD [enter]              (note: default ORCAD path)

Use the Orcad DRAFT utility to modify the ORCADSDT.OVL file by typing:

        DRAFT /C [enter]

The library path should point to the PALASM 4 library subdirectory, so
update by typing

        LP
        C:\PALASM\LIB\                  (note: default PALASM path)

Ensure the correct MACH libraries are installed, update by typing:

        LF
        A
        1 [enter]
        74XX.LIB [enter]
        A
        1 [enter]
        LOGIC.LIB [enter]
        A
        1 [enter]
        MACH.LIB [enter]
        Q

Exit the update of ORCADSDT.OVL by typing:

        U
        Q


Once you have a correct ORCADSDT.OVL make a copy to your Orcad executable
directory for future use. Restart the PALASM 4 menu and try compiling again.

ÿ
