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Altera_Forum's avatar
Altera_Forum
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17 years ago

ECO and global signal constraints

Hi I'm often running into the following problem: I try to make some simple ECOs in a design. When committing them, I get warnings about global signals that cannot be implemented ("Warning: Ca...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

The following is the cause of the error message (from Quartus II Message Help):

"There are too many nodes that use the specified resource. Perhaps they are placed too close to each other. For example, they may all be placed on the same side, or the design may have assigned the nodes to use the same type of resources when other types are available."

Do your ECO changes contribute to the above condition? For example, is the new LCELL placed too close to the nodes in the error message?

- Ivan