Hi,
I have an existing Allegro HDL schematic design (Project A) and PCB (.brd). I'm not starting a new design (Project B). The starting point for Project B is an internal project template (blank). As Project B will be heavily based on Project A I wish to start off importing this design into Project B. Project A is complex Hierarchical design, once I copy the top level sheet into Project B I lose the original reference designators.
1. Am I correct in thinking that there is now way to avoid this happening using a complex hierarchical design?
2. If it is unavoidable to loose the designators on import, should I be able to copy over the .brd file from Project A and back annotate the Reference Designators from the Project A .brd into the Project B schematic?
I cannot seem to find a way to make this work, we will encounter this scenario regularly within our organization, where an existing pcb is reused with some modification. It seems if the Reference Designators in the schematic are lost, then when I repackage then the Project A .brd file is not much use to Project B and the layout would have to be restarted.