I'm using Orcad Layout (v9) to route my PCB (2 layers , top and bottom only). I need to achieve the following requirement,
On Top Layer i have to manually route important traces.
Auto Route rest of the traces on the bottom layer. (No more traces on top)
How to achieve this ? I route manually important traces on top layer. Now when i auto route , Not only does the autorouter rip all my traces on the top layer but adds new ones on top.
Can someone please tell me how to achieve it , is this possible in the first place ?
search in the routing option before running autorouter .. there will be a option of "which layer to route "!!
or other vise you can lock tracks individually after manual routing