Conversion Tool from DEF Format to SPEF format

Technical Aspects:

• SPEF: Stands for Standard Parasitic Extraction Format
• its the IEEE standard for representing data of wires of a chip in ASCII format
• Useful for :
  • Delay calculation
  • Speed of operation (meeting timing requirements)
  • signal integrity (quality of the signal)
• Language: Python

Refrences: (under the refrences folder)

• Lecture 06 - Capacitance, Driving a Load-2011-12-B
• Process Variations And Probabilis, Standard Formats for Circuit Characterization
• ISPD 2013 Contest Details
• SPEF Format
• LEF/DEF Language Reference

How to build and install:

• enter the command:

   python [src file] [path to def file] [path to lib file] [path to lef file] [path to spef file to write to]
  

example usage:

	python def2spef "/home/areeg/Desktop/Digital 2/project 2/def2spef/tests/pic27ch/pic27ch.def" "/home/areeg/Desktop
	/Digital 2/project 2/def2spef/libs/osu018_stdcells.lib" "/home/areeg/Desktop/Digital 2/project 2/def2spe
	/libs/osu018_stdcells.lef" "/home/areeg/Desktop/Digital 2/project 2/def2spef/tests/pic27ch/pic27ch.spef"

What is done:

• name_mapping
• ports
• D_Nets without calculations
• Wire Segments
• Capacitance Calculations
• Resistance Calculations