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3,736 Views
Registered: ‎03-01-2016

how to: e-read PACKAGE_PIN constraints after opt_design and before place_design.

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AR# 68121 suggests: 

 

The work-around for the issue is to re-read PACKAGE_PIN constraints after opt_design and before place_design.

 

Is this taken care of with a tcl pre/post script, is there a GUI flow to take care of re-reading the PACKAGE_PIN constraints?

 

 

 

 

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6,738 Views
Registered: ‎03-01-2016

I believe I found something that might help. There is a tcl script for implementation under the project_name/project_name.runs/impl_1 

 

In here there is a tcl command read_xcd <xdcname.xdc> I will give this a try and update the post if it works

 

 

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Xilinx Employee
Xilinx Employee
3,723 Views
Registered: ‎04-16-2012

Hi @skemp_ultrata

 

I don't think there is a GUI flow for it.

As you mentioned, you have to use tcl pre/post script to re-read the PACKAGE_PIN constraints.

 

Thanks,

Vinay

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3,720 Views
Registered: ‎03-01-2016
Hi Vinay, thank you for replying. By re-read PACKAGE_PIN constraints is the article referring to the tcl command get_package_pins ? Is there a log or journal file where I could see the tools performing the original read command?
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Highlighted
6,739 Views
Registered: ‎03-01-2016

I believe I found something that might help. There is a tcl script for implementation under the project_name/project_name.runs/impl_1 

 

In here there is a tcl command read_xcd <xdcname.xdc> I will give this a try and update the post if it works

 

 

View solution in original post

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Xilinx Employee
Xilinx Employee
3,690 Views
Registered: ‎09-20-2012

Hi @skemp_ultrata

 

You can copy the constraints to TCL file and source it in tcl.pre of place_design in implementation settings.

Thanks,
Deepika.
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