Interactive graphical pin assignment

A design tool, comprising:

• a pin interconnection evaluator to identify layout restrictions of a configurable processing device that includes a plurality of pins;
• and
• a graphical user interface (GUI) application coupled to the pin interconnection evaluator, the GUI application configured to provide an interactive visual representation of a pin assignment to accommodate the layout restrictions and a user input, wherein the interactive visual representation indicates a pin of the processing device that can be assigned a signal without resource assignment conflicts, wherein the resource assignment conflicts are evaluated based on resource attributes that define mapping rules for the plurality of pins, the GUI application further configured to provide a pin assignment mode indicator for a user to select one of an automatic pin assignment mode and a manual pin assignment mode provided by the design tool;
• wherein the GUI application includes:
• a list of drivers pins;
• the pins of the processing device;
• a user interface element associated with each of the driver pins;
• and
• a drag-and-drop mechanism to allow a user to bi-directionally move the user interface elements between the associated driver pins and the pins of the processing device as an indication of a change to the pin assignment.

An article of manufacture comprising:

• a non-transitory machine-readable medium including a plurality of instructions which when executed perform a method comprising:
• identifying layout restrictions of a configurable processing device that includes a plurality of pins;
• providing an interactive visual representation of a pin assignment that accommodates the layout restrictions and a user input, wherein the interactive visual representation indicates a pin of the processing device that can be assigned a signal without resource assignment conflicts, wherein the resource assignment conflicts are evaluated based on resource attributes that define mapping rules for the plurality of pins;
• and
• providing user-selection of an automatic pin assignment mode and a manual pin assignment mode, through a graphical user interface, the graphical user interface:
• presenting a list of driver pins and the pins of the processing device;
• providing a user interface element associated with each of the driver pins;
• and
• allowing a user to bi-directionally move the user interface elements between the associated driver pins and the pins of the processing device to indicate a change of the pin assignment.