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 Community Search 

Page 1 of 1 (7 items)
  • ELC and gate files for latches
     I have a simple latch that I want to characterize in ELC, but I'm having problems with recognition of the function.   input GATE; input DATA; output Q; reg Q; always @ (GATE or DATA) begin if (GATE == 1'b1) Q <= DATA; What is the proper way to describe this function using a ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Thu, Apr 1 2010
  • Scaling liberty file with ELC
     Is there a way to scale a liberty dotlib with ELC?  I want to speed up my best case library which was created with ELC.   Thanks, Brian            
    Posted to Digital Implementation (Forum) by Brian Harrison on Wed, Mar 17 2010
  • Re: TCL
    Excellent!  Thanks Bob and your TCL blackbelts. When using the example on how to create a TCL extension from:  http://www.swig.org/tutorial.html add -m64 to the gcc command so it will load in encounter 64bit:  unix % gcc -fpic -c -m64 example.c example_wrap.c -I/usr/local/include unix % gcc -shared -m64 example.o ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Fri, Dec 11 2009
  • Re: TCL
    Thanks JG, I'm using the 'load' to load the binary extension. The tcl interpreter can be compiled to not to allow dynamic loading,  'load', so maybe that's the problem. I tried adding a directory:   set auto_path [linsert $auto_path 0 /home/bharris/dev/swig] but no luck.  info library gives ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Thu, Dec 10 2009
  • TCL
    Hello, Is there a proper way to load a dynamically loadable TCL extension in encounter? example:  http://www.swig.org/tutorial.html When I complile the above example and try to load it within encounter I get: couldn't load file "./example.so": ./example.so: cannot open shared object file: No such file or directory This ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Thu, Dec 10 2009
  • Re: ELC: liberty file output capacitance index different from simulation
     It appears that the alf2lib function is what is causing the problem.  The data tables and indexes are correct in the alf file.  This is what I'm using: alf2lib -alf IO.alf  -lib .IO.lib -max_load -supply VCC -slew_derate 1.0 -def IO.prop -state   I have project restrictions from the customer on the data, but ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Wed, Oct 28 2009
  • ELC: liberty file output capacitance index different from simulation
    When generating a liberty dotlib for a bi-directional buffer, I have noticed that the cap index differs from what was used in the simulation.  This only affects the PAD of the buffer and not the internal output.  It appears to add the capacitance of the ouput pin(PAD) to the simulated value. Example: Using this in my setup ...
    Posted to Digital Implementation (Forum) by Brian Harrison on Tue, Oct 27 2009
Page 1 of 1 (7 items)