How to prevent MAP from removing floating inputs?

Hi, there:

I remembered there was a constraint that can prevent MAP from removing floating input pins? What is it?

Thanks. Kelvin

Reply to
Kelvin
Loading thread data ...

-u flag on the command line.

You may also need to tell your synthesiser.

Regards, Allan.

Reply to
Allan Herriman

The net constraint "S" will block trimming on an undriven or unloaded net. An example of UCF syntax is:

NET "net_name" S ;

When map is run with the "-u" switch, this constraint is automatically applied throughout the design.

Bret

Reply to
Bret Wade

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.