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23 - SDT Configuration Files

Capture requires either an SDT.CFG file or an SDT.BCF file when translating SDT designs into Capture. If you do not have one of these files, you can create an SDT.CFG in a text editor using the sample file provided.
You may need to edit the following items in your SDT.CFG file to ensure that schematic folders are imported correctly:

  • Path and libraries
  • Page dimensions and units
  • Part fields
    After you finish editing the SDT.CFG file, save it in the directory where you keep your SDT schematic folders. Capture uses the SDT.CFG file to locate the libraries and parts needed to translate the schematic folders.

Path and libraries

The PLIB= line in the SDT.CFG file specifies the exact path to the SDT libraries (.LIB files). Each library must be specified by a LIB= line. You canhave only one 'PLIB=' line in your SDT.CFG file, and one 'LIB=' line for each library your SDT schematic folders use. If you keep your SDT libraries in the same directory as your SDT schematic folder, use the following lines in the SDT.CFG file where pathname specifies the directory path to the .LIB files, and filename specifies the name of one .LIB file:

PLIB = 'pathname\*.LIB'
LIB = '.\filename.LIB'

Page dimensions and units

If the design uses metric units, replace the corresponding lines with the following lines:

HOR = 264000 374300 548300 795300 1143300
VRT = 177000 264000 374300 548300 795300
P2P = 2540 2540 2540 2540 2540
UNTS = 'METRIC'

Part fields

Use the part field lines in the SDT.CFG file to map the properties and values of parts from SDT to Capture. The eighth part field is typically reserved for the PCB footprint.

Sample SDT.CFG file

The following is a sample SDT.CFG file:

PLIB = 'C:\ORCADESP\SDT\LIBRARY\*.LIB'
LIB = 'TTL.LIB' Design library filename
FN1 = '1ST PART FIELD'
FN2 = '2ND PART FIELD'
FN3 = '3RD PART FIELD'
FN4 = '4TH PART FIELD'
FF5 = '5TH PART FIELD'
FN6 = '6TH PART FIELD'
FN7 = '7TH PART FIELD'
FN8 = 'PCB Footprint'
HOR = 9700 17000 20200 32200 42200
VRT = 7200 11000 15200 20200 32200
P2P = 100 100 100 100 100
SIZ = 'B'
UNTS = 'ENGLISH'
ATB = 0

View the next document: 24 – Netlist Examples

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