Altera NCO MegaCore Function - Manual (Page 9)

• Simulate the behavior of a licensed IP core in your system.
• Verify the functionality, size, and speed of the IP core quickly and easily.
• Generate time-limited device programming files for designs that include IP cores.
• Program a device with your IP core and verify your design in hardware.
OpenCore Plus evaluation supports the following two operation modes:
• Untethered—run the design containing the licensed IP for a limited time.
• Tethered—run the design containing the licensed IP for a longer time or indefinitely. This requires a
connection between your board and the host computer.
Note: All IP cores that use OpenCore Plus time out simultaneously when any IP core in the design times
out.
NCO IP Core OpenCore Plus Timeout Behavior
All IP cores in a device time out simultaneously when the most restrictive evaluation time is reached. If
there is more than one IP core in a design, the time-out behavior of the other IP cores may mask the time-
out behavior of a specific IP core .
All IP cores in a device time out simultaneously when the most restrictive evaluation time is reached. If
there is more than one IP core in a design, a specific IP core's time-out behavior may be masked by the
time-out behavior of the other IP cores. For IP cores, the untethered time-out is 1 hour; the tethered time-
out value is indefinite. Your design stops working after the hardware evaluation time expires. The Quartus
II software uses OpenCore Plus Files ( .ocp ) in your project directory to identify your use of the OpenCore
Plus evaluation program. After you activate the feature, do not delete these files..
When the evaluation time expires, the output of NCO IP core goes low.
Related Information
• AN 320: OpenCore Plus Evaluation of Megafunctions
IP Catalog and Parameter Editor
The Quartus II IP Catalog (Tools > IP Catalog) and parameter editor help you easily customize and
integrate IP cores into your project. You can use the IP Catalog and parameter editor to select, customize,
and generate files representing your custom IP variation.
Note: The IP Catalog (Tools > IP Catalog) and parameter editor replace the MegaWizard
™ Plug-In
Manager for IP selection and parameterization, beginning in Quartus II software version 14.0. Use
the IP Catalog and parameter editor to locate and paramaterize Altera IP cores.
The IP Catalog lists installed IP cores available for your design. Double-click any IP core to launch the
parameter editor and generate files representing your IP variation. The parameter editor prompts you to
specify an IP variation name, optional ports, and output file generation options. The parameter editor
generates a top-level Qsys system file ( .qsys ) or Quartus II IP file ( .qip ) representing the IP core in your
project. You can also parameterize an IP variation without an open project.
2-2 NCO IP Core OpenCore Plus Timeout Behavior
UG-NCO
2014.12.15
Altera Corporation NCO IP Core Getting Started
Send Feedback