Specifications

CHAPTER 13: ENGINEERING CHANGE MANAGEMENT
EDITING ATOMS IN THE CHIP EDITOR
ALTERA CORPORATION INTRODUCTION TO QUARTUS II ■ 217
Editing Atoms in the Chip Editor
The Chip Editor also allows you to create new atoms or move existing atoms
to other locations. You can also remove atoms. These changes are reflected
in the Change Manager.
You can create a new atom by selecting resource location in the Chip Editor
window, choosing Create Atom (right button pop-up menu), and specifying
a new name for the atom. You can then use the Locate in Resource Property
command (right button pop-up menu) to modify the properties and
connections for the new atom. See the following section, “Modifying
Resource Properties by Using the Resource Property Editor,” for more
information.
If you want to move an atom to a new location, you can select the atom and
drag it to a new location. If you want to delete an atom, you can use the
Delete command (right button pop-up menu). The Check and Save All
Netlist Changes command (Edit menu) allows you to save all the changes
you have made to atoms.
Modifying Resource Properties by
Using the Resource Property Editor
The Resource Property Editor allows you to make post-compilation edits to
the properties and parameters of logic cell, I/O element, or PLL resources,
as well as edit or remove connections for individual nodes. You can use the
toolbar buttons that allow you to navigate forward and backward among the
resources. You can also select and change multiple resources at one time. In
addition, when you point the mouse on a resource port, the Resource
Property Editor highlights the fan-in and fan-out for that port.
The Resource Property Editor contains a viewer that shows a schematic
diagram of the resource you are modifying, a port connection table that lists
all the input and output ports and their connected signals, and a property
table that displays the properties and parameters that are available for that
resource. If the port connection or property tables are not visible, you can
display them with the View Port Connections and View Properties
commands (View menu). Figure 3 shows the Resource Property Editor.