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  2. Allegro X Scripting - TCL
  3. SysCap - "Swap" Net Name"

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SysCap - "Swap" Net Name"

JohnFr38
JohnFr38 over 2 years ago

Hi Everyone,

I'm having a problem using SysCapture. I would like to swap "net name" of a FPGA 

On VHD designer -> Texte/swap

On SysCap -> Swap PIN

But the function modifies the PIN name and not the associated NET.

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  • srish09
    0 srish09 over 2 years ago

    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.

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  • JohnFr38
    0 JohnFr38 over 2 years ago in reply to srish09

    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

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  • CadAP
    0 CadAP 5 days ago in reply to MZ20250602835

    MZ20250602835 

    Currently only Pin Number is editable on schematic canvas. 

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  • MZ20250602835
    0 MZ20250602835 4 days ago in reply to CadAP

    Dear CadAP,

    many thanks for your reply. I created another case for this issue: (1) Pin Swap issue from DE HDL to System Capture - Allegro X System Capture (EE Cockpit) - PCB Design & IC Packaging (Allegro X) - Cadence Community

    If a solution such as tcl available may i ask you to advise me in the case above?

    Many thanks again and wish you a nice day.

    Best Regards

    Moyan

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  • MZ20250602835
    0 MZ20250602835 4 days ago in reply to CadAP

    Dear CadAP,

    an update: i swapped the pins in PCB Editor and back annotated in System Capture, the design swap information gets updated on the schematic only the pin numbers were interchanged and the pin text wasn't changed.

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  • MZ20250602835
    0 MZ20250602835 4 days ago in reply to CadAP

    Dear CadAP,

    kindly to give a update and the solution is below:

    ALLOW_PINTEXT_SWAP

    By default, pin swaps received from back-end or performed on the schematic swap only pin numbers assigned to the pins. When this directive set to ON, both pin names and pin numbers assigned to the pins are swapped. 

    Syntax

    ALLOW_PINTEXT_SWAP 'ON|OFF'

    Example

    ALLOW_PINTEXT_SWAP 'ON'

    Corresponding UI Option

    None

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  • CadAP
    0 CadAP 4 days ago in reply to MZ20250602835

    MZ20250602835 

    When you swap a pin name and number in the PCB editor and then backannotate the changes to Allegro System Capture, it is necessary to include the above directive in Allegro System Capture either site.cpm or project.cpm.

    This directive allows the pin swap to be applied to the corresponding component within Allegro System Capture.

    The pin text can also be swapped along with the pin number after defining the ALLOW_PINTEXT_SWAP directive in the START_CANVAS section of the project or site cpm.

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  • CadAP
    0 CadAP 4 days ago in reply to MZ20250602835

    MZ20250602835 

    When you swap a pin name and number in the PCB editor and then backannotate the changes to Allegro System Capture, it is necessary to include the above directive in Allegro System Capture either site.cpm or project.cpm.

    This directive allows the pin swap to be applied to the corresponding component within Allegro System Capture.

    The pin text can also be swapped along with the pin number after defining the ALLOW_PINTEXT_SWAP directive in the START_CANVAS section of the project or site cpm.

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  • MZ20250602835
    0 MZ20250602835 4 days ago in reply to CadAP

    Dear CadAP,

    many thanks again.

    Best Regards

    Moyan

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  • MZ20250602835
    0 MZ20250602835 4 days ago in reply to CadAP

    Dear CadAp,

    may a ask you a additional question and how can pin swap between two different sections in system capture? i got error" Selected pin does not belong to same instance". With the same lib there is no problem in DE HDL.

    Best Regards

    Moyan

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  • CadAP
    0 CadAP 2 days ago in reply to MZ20250602835

    MZ20250602835 

    Please follow the steps mentioned in the below article:

    Article (11189588) Title: How can I swap between pins distributed across multiple slots?
    URL: support.cadence.com/.../ArticleAttachmentPortal

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  • MZ20250602835
    0 MZ20250602835 2 days ago in reply to CadAP

    Dear CadAp,

    many thanks for your reply. I already checked with this article. If i backward from PCB Layout to System Capture schema there is problem if the pins swapped across multiple slots in Layout.

    Also if you use the swap function direkt in the schema it is not possible to swap the pins across sections.

    Best Regards

    Moyan

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