cust14/hi2lo.tcl

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###############################################################################
# Copyright (c) 2011-2024 by Altair Engineering, Inc.
# All rights reserved.
#
# Altair Engineering, Inc. makes this software available as part of the Vision
# tool platform.  As long as you are a licensee of the Vision tool platform
# you may make copies of the software and modify it to be used within the
# Vision tool platform, but you must include all of this notice on any copy.
# Redistribution without written permission to any third party, with or
# without modification, is not permitted.
# Altair Engineering, Inc. does not warrant that this software is error free
# or fit for any purpose.  Altair Engineering, Inc. disclaims any liability for
# all claims, expenses, losses, damages and costs any user may incur as a
# result of using, copying or modifying the software.
# =============================================================================
#   @plugin
#       Check Voltage Zones
#   @namespace
#       Hi2lo
#   @section
#       Analyze the Loaded Database
#   @description
#       Find signals that connect transistors in a low voltage zone with
#       transistors in a high voltage zone.
#   @configuration
#   @files
#       cust14/hi2lo.tcl
#   @example
#       demo/spice/multivolt.sp
#   @cmdline
#       -hspice @example[0]
#       -userware @files[0]
#   @tag
#       spice
###############################################################################


# =============================================================================
# Init - Initialize the plugin.
# =============================================================================
#
proc Hi2lo:Init {} {
    gui menu command {"Userware" "Find hi2lo Errors"} {Hi2lo:Run}

    gui plugin addConfig \
        Hi2lo            \
        highVolt         \
        "*LL"            \
        text             \
        "Name pattern of high voltage transistors."
    gui plugin addConfig \
        Hi2lo            \
        lowVolt          \
        "*LLRVT"         \
        text             \
        "Name pattern of low voltage transistors."
}


# =============================================================================
# Finit - Finalize the plugin.
# =============================================================================
#
proc Hi2lo:Finit {} {
    gui menu removeEntry {"Userware" "Find hi2lo Errors"}
}


# =============================================================================
# Run - procedure to find signals that connect a low voltage transistor
#       with a high voltage transistor.
# =============================================================================
#
proc Hi2lo:Run {} {
    ##
    # Get the database, return if the database is empty.
    #
    set db [gui database get]

    ##
    # Return if the database is empty.
    #
    if {$db == {}} {
        return
    }

    ##
    # Get the name of the first top module.
    #
    set top {}
    $db foreach top top break

    ##
    # Loop over all signals in the top module calculated above and build a
    # list with all signals (skip power, ground and negpower).
    #
    set sigList {}
    $db flat foreach signal $top sig {
        set isPG 0
        $db flat foreach net $sig net {
            if {[$db isPgNet $net]} {
                set isPG 1
                break
            }
        }
        if {!$isPG} {
            lappend sigList $sig
        }
    }

    ##
    # Now loop over all pins the signal connects. If it connects to a
    # transistor of the low voltage zone and a transistor of a high voltage
    # zone then it is a result candidate.
    #
    set hiVoltModelPattern  [gui plugin getConfigValue Hi2lo highVolt]
    set lowVoltModelPattern [gui plugin getConfigValue Hi2lo lowVolt]
    set resList {}
    foreach signal $sigList {
        set hiCon 0
        set loCon 0
        $db flat foreach pin $signal pin {
            if {[$db oid type $pin] == "port"} {
                continue
            }
            set model [$db oid cname $pin]

            if {[string match -nocase $hiVoltModelPattern $model]} {
                set hiCon 1
            }

            if {[string match -nocase $lowVoltModelPattern $model]} {
                set loCon 1
            }
        }
        if {$hiCon && $loCon} {
            lappend resList $signal
        }
    }

    ##
    # Show the result list in the Mem window.
    #
    gui window show Mem
    gui mem append $resList
}


# =============================================================================
# Call the initialization procedure.
# =============================================================================
#
Hi2lo:Init