SysCap - "Swap" Net Name"

Hello John, 

Are you swapping the pins in pcb editor and then importing the layout into System Capture? As per the flow, pins within the same pin group can be swapped in pcb editor. These changes can be back-annotated to SysCap schematic using the File > Import > Layout option.

Thank you for answer. 

With this method on the schematic -> the numbering changes. On chip : 10-9-8-7-6 i want swap net label of 8 & 7. If I use the command swap pin, on the  graphic representation chip : 10-9-7-8-6

I would like just swap the net no swap pin

# When pins are swapped in PCB Editor and back annotated in System Capture, the design swap information gets updated on the schematic where the pin text and pin numbers are interchanged.
#This is the intended behavior of the swap pin command.

# But if you want to swap the net name not the pin text and pin number. Please use the below tcl script.

#Please copy the below code in notepad/notepad++ and save file with .tcl extension.
#Please select the two wires(nets) which net names you want to interchange and source the below tcl code.

#For example: Save the notepad as net_interchange.tcl and source {c:\tcl\net.interchange.tcl} where tcl is folder created in c directory.

proc swapNetsName {} {

set pageId [sch::dbGetActivePage]
set pageSpath [sch::dbGetActivePageSpath]
set selectedItems [sch::dbGetSelectedItems $pageId]
if { [llength $selectedItems] > 0 } {

foreach item $selectedItems {

set itemType [sch::dbGetType $item]

if {$itemType eq $sch::DBTRoute} {

set name [sch::dbGetItemName $item]
set netpos [sch::dbGetSegments $item]
set netXY [ sch::dbConvertToUserUnits [lindex [lindex $netpos 0] 0] ]
lappend netlist $name
lappend netXYPos $netXY

} else {puts "SelectedItem Is Not Net! or One Of The Selected Item Is Not A Net!"; set netlist {} }

}

if {[llength $netlist]>=2} {

# puts "$netlist"
# puts "$netXYPos"
set net0 [lindex $netlist 0]
# puts $net0
set net1 [lindex $netlist 1]
# puts $net1
set net0Xpos [lindex [lindex $netXYPos 0] 0]
# puts $net0Xpos
set net0Ypos [lindex [lindex $netXYPos 0] 1]
# puts $net0Ypos
set net1Xpos [lindex [lindex $netXYPos 1] 0]
# puts $net1Xpos
set net1Ypos [lindex [lindex $netXYPos 1] 1]
# puts $net1Ypos

renameSignal -pg $pageSpath -net [list $net0Xpos $net0Ypos $net0 $net1]
renameSignal -pg $pageSpath -net [list $net1Xpos $net1Ypos $net1 $net0]

puts "Sucessfully interchanged nets $net0 with $net1"

} else { if {[llength $netlist] >= 1 } {puts "Net Interchange tcl Does Not Run For Single Net. Please Select Two Nets" } }

} else {puts "No Object Is Selected On The Schematic!"}

}
swapNetsName

Thank you very much for the script.

I can't find the information to run the script from Cadence System Capture. I found where to execute TCL commands but not how to add a button or something to execute the script.

Thanks for your answer.

I've finally managed to run the script! But I have a problem with this one:
1) low priority transforming the script into a button
2) high priority: the script switches the NETs but not where I select