How can I keep (lock) traces that are changing from one pin to another at one end only when reading in a ECO?
AFAIK There is no option to retain those traces
I generally do the changes manually in ECO mode
Thanks for the answer.
Connectivity in PADS is based on pin pairs. A pin pair is a net connection between two terminals in a PCB Decal. If a pin pair is changed there is no place for the existing trace to connect to and it is removed.
For a few changes, you can fake it by manually temporarily adding a "TP" near the pin change. Unroute the final segment to the pin you want to change. Move the TP so the rats nest connects to it before the pin. Delete the connection to the pin. Add a connection from the "TP" to the new pin. Route the new connection then move & delete the "TP". (This may save 90% of the routed trace). Note the "TP" could be a 1x10 header or similar if a number of changes are required. Good luck!
Retrieving data ...