Core to pads routing
--------------------

Having built the core layout, you can run the core-to-pads router.
Its function is to locate pads appropriately around the core and
to create wiring segments between pads and chip terminals.

Before we set up the execution environment, take a look at the
chip.rin file. This files instructs ring, the core to pads router,
to place pads according to designer's wishes. It also instructs ring to
use segments with reasonable width for power routing.

The syntax of this file is quite simple. The names mentioned here
are instance names, because model names are used several times.

Run:

> ring chip chip

where the first chip stands for chip.vst and the second stands for
chip.ap. If you get lucky, there will not be any errors.

Press <return> to continue. 
