parasitic/showContributingCap.tcl

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
###############################################################################
# Copyright (c) 2018-2024 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
#       Show Parasitic Coupling Connections
#   @namespace
#       ShowContributingCap
#   @section
#       Analyze the Loaded Database
#   @description
#       Extend the Popup menu in the Parasitic window to show the contributing
#       capacitance of coupled nets.
#   @license
#       permit spice
#       available gv-spf
#   @files
#       parasitic/showContributingCap.tcl
#   @tag
#       parasitic spf dspf
###############################################################################


# =============================================================================
# Init - Initialize the plugin.
# =============================================================================
#
proc ShowContributingCap:Init {} {
    ##
    # Extend the Popup menu to start the code.
    #
    gui popup customize "ShowContributingCap:Start"
}


# =============================================================================
# Finit - Finalize the plugin.
# =============================================================================
#
proc ShowContributingCap:Finit {} {
    ##
    # Undo modifications of the GUI.
    #
    gui popup removeCustomize "ShowContributingCap:Start"
}


# =============================================================================
# Start -
# =============================================================================
#
proc ShowContributingCap:Start {menu oidList} {
    set w [gui window getCurrent]
    if {([gui window getClass $w] ne "Parasitic")} {
        return
    }

    set db [gui database get]
    if {$db == {}} {
        return
    }

    if {[llength $oidList] != 1} {
        return
    }

    set oid [lindex $oidList 0]
    if {[$db oid type $oid] ne "inst"} {
        return
    }

    if {![$db flag $oid is couplextern]} {
        return
    }

    set divider [$db attr -db getValue "@DIVIDER"]
    set design  [$db attr -db getValue "@DESIGN"]
    if {($divider eq "") || ($design eq "")} {
        return
    }

    set top [$db search top $design]
    if {[$db oid isnull $top]} {
        return
    }

    $menu add separator
    $menu add command \
        -label   "Load to Cone" \
        -command [list ShowContributingCap:_loadToCone $db $top $oid $divider]
}


# -----------------------------------------------------------------------------
# _loadToCone -
# -----------------------------------------------------------------------------
#
proc ShowContributingCap:_loadToCone {db top oid divider} {
    $db flathilight * deleteAll
    $db hilight     * deleteAll

    set col         0
    set netList    {}
    set signalList {}
    $db foreach pin $oid pin {
        if {![$db isConnected $pin]} {
            continue
        }
        set net [$db connectedNet $pin]
        set name [$db oid oname $net]

        $db hilight $net set $col

        if {[catch {
            set dsnNet [$db oid createFromString net $top $name $divider -icase]
        } msg]} {
            zmessage print ERR $msg
            return
        }
        set signal [$db oid convertTo signal $dsnNet]
        $db flathilight $signal set $col

        lappend netList    $dsnNet
        lappend signalList $signal

        incr col
    }

    gui highlight changed

    gui cone load $signalList
    gui zoomTo -window Cone $netList
    gui cone zoom  -0.3
}


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