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Message started by joel on May 31^st, 2007, 2:25pm

Title: Any Laker users here?
Post by joel on May 31^st, 2007, 2:25pm

Anyone else using Laker for layout besides me? If so, could I ask,

How can one generate a list of the ports of a cell?

Thanks, I'm a complete laker beginner, and not that smart about layout in general.

Cheers,
~joel

Title: Re: Any Laker users here?
Post by Roger on Sep 25^th, 2007, 3:53pm

You can find the command: Assign Net/Port Property to extract the port information by label if you don't have any port property on Laker database.

You can find this command in menu: Library from Laker main window or menu: Cell from layout window.
Before you access this command, please take a look of your tech file definition: tfAbstractCell

tfAbstractCell {
#------------------------------------------------------------------
# define cell pin extraction rule
#------------------------------------------------------------------
#mapText2Pin { {txexLayerName} {ExtractedLayer1 ...} $ExtractAll {OutputLayer} }
mapText2Pin { {POLYtext drawing } { POLY drawing} }
mapText2Pin { {MT1text drawing } MT1 }
...
}

If you already have the port infortmation on a cell, you can use the following Tcl script to dump out the ASCII list of the port by the giving cell name and library name.

# File: dumpPortInfo.tcl
#
# Load this script by the command: source dumpPortInfo.tcl from Laker main window
# Run this script by the command: dumpPort <libName> <cellName>
#
proc dumpPort {libName cellName {viewName layout] {
dbOpenLib -lib $libName -mode readOnly
set cv [dbOpenCV -lib $libName -cell $cellName -view $viewName -mode readOnly]
if {[dbIsDbObj -obj $cv] != 1} {
lakerMessage "Can't find cell: $cellName from library: $libName"
}
set Ports [dbGet -obj $cv -attr Ports]
lakerMessage "Report Port List... \nCell: $cellName from library: $libName"
puts "Report Port List... \ncell: $cellName from library: $libName"
foreach port $Ports {
set Name [dbGet -obj $port -attr Name]
set Dir [dbGet -obj $port -attr Dir]
lakerMessage " Port: $Name Direction: $Dir"
puts " Port: $Name\tDirection: $Dir"
}
puts "\n"
dbCloseCV -cv $cv

dbCloseLib -lib $libName
}

Title: Re: Any Laker users here?
Post by joel on Sep 26^th, 2007, 2:18pm

Thanks, Roger! That's very helpful!

Cheers,
/jd