I was trying to us a Formula to Match Differential pairs Signals in a group.

I set a match Group Tolerance of 1200th

The tried to reference all the Differential Paris to the Clock for that Group.

So I entered the Formula to try and match each signal to the negative side of the Differential clock with a toleance of +850/-350th.

={\QPI1_CPU1_CPU0_P1P0_CLK_DN\}+850/-330th

When I go into Expedition and turn on the Tuning Meter. Expedition only sees the Match Group tolerance of 1200.

This method works when I want to match single ended signals to a Differential Pair net.

Any Suggestions on what to do?

EE7.9.2 Update 5

Sincerely,

Gary Felsman

Happy New Year Gary:

I don't know if you got any feedback privately on your issue but I did ask some of my "tuning meter and ces experts" -

1. It is true that the tuning meter uses the tolerance of the match group.

2- But the values show up in the formula range.

In the following example the actual length of the one end of the diff pair is 1318.165

^{th}.So the range of +850

^{th}and -350^{th}is 968.165^{th}and 2168.17^{th}:The number in the middle of the tuning meter is the target longest length that is involved in the equation.

Hopefully this helps you on your question. If not, send some screenshots to explain your question it may help us to see your issue.