Hello. I have a bunch of HDMI diff pairs that I need to match. Each of the pairs has a diode array across them. I want to match from the connector to an inline resistor on each pair, which I've added all the nets to a net class.
The problem is, it's arbitrarily assigning the pad to pad that it is measuring. For all but 1 net (so half of one pair) it picked the connector pin and the diode, which is REALLY close. For the one net, it picked a resistor and the connector.
How can I select which pad pairs for these differential signals it is showing me the length match for?
Thanks!
HDMI diff pairs mismatch
Re: HDMI diff pairs mismatch
Right-click the trace and select “Length Matching → Open Length Matching” from the context menu.
Then, in the dialog that opens, find the “Net/Pads” field, locate the required trace in the list, and click the “…” button.
A dialog will open where you can select the start and end points between which the measurement will be performed.
Then, in the dialog that opens, find the “Net/Pads” field, locate the required trace in the list, and click the “…” button.
A dialog will open where you can select the start and end points between which the measurement will be performed.
Re: HDMI diff pairs mismatch
Length Matching → Open Length Matching ........ yes, it is a "fix". Maybe even better if a D-T Default ? Thoughts ?