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Connect core ring and Power pads

Hi everyone,

I can't connect the power pads to the core ring. I tried with different power pads, core ring width and pad cells. Every time I use special route the encounter display this warning:

**WARN: (ENCSR-1256): Cannot find any CORE class pad pin of net VDD1. Check net list, or change port class in LEF file, or change option to include pin in given range.

Cannot find any AREAIO class pad pin of net VDD1. Check net list, or change port class in LEF file, or change option to include pin in given range.

**WARN: (ENCSR-1256): Cannot find any CORE class pad pin of net VSS1. Check net list, or change port class in LEF file, or change option to include pin in given range.

Cannot find any AREAIO class pad pin of net VSS1. Check net list, or change port class in LEF file, or change option to include pin in given range.

Does anyone know what could be the problem?

Tks,

Kari over 11 years ago

Check the LEF of the pin on the pwr/gnd pad you're trying to connect. It should be CLASS CORE:
PIN VDD
DIRECTION INOUT ;
USE POWER ;
PORT
CLASS CORE ;
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