Step 1: import the schematics
Our schematics is coming from a tEDAx netlist, which is a bit more than
just a list of networks: it also contains information about footprints and
device attributes.
Start with an empty board and import the schematics information from
7805.tdx using the File menu, Import submenu, Import tEDAx schematics submenu.
All subcircuits and networks should be loaded.
Step 2: disperse
However, the subcircuits are placed randomly. There are many different
strategies to resolve this:
- manual placement: drag&drop move the subcircuits around; you may
want to temporarily enable the "floater lock" in the Mode menu,
Drawing submenu, "lock floaters" item (or using {m f l}). Since
refdes text is normally a floater, this will lock it down to
its parent subc so it will be easier to grab the subc to move, not
the refdes.
- disperse: Connects menu, Subcircuit placement submenu, disperse all
subcircuits. This will place the subcircuits in a grid in random order
so that there will be no overlap
- in the same submenu there is an auto-place selected subcircuits item;
select all subcircuits (drag-and-drop selection box enclosing them all)
then execute this menu. It's a smarter algorithm that is trying to
place subcircuits to minimize resulting rat line length. It will
try to use both sides of the board.
Step 3 on: lay out the board
Once subcircuits are placed, press {c r} and the nets are shown with rat lines.
From this point, please follow
the no-sch tutorial from step 5.