Compiler

Assigning Pins



To add, change, or delete assignments of node names in the current device to pins in the device selected for the current device, and then reserve the pins for future use:  Read This First

  1. If you have not already done so, create a new project or open an existing project.

  2. If you have not already done so, specify the current Compiler settings.

  3. If you have not already done so, specify the design entity you want to compile.

  4. Choose Settings (Assignments menu).  Shortcut

  5. In the Category list, select Device under Compiler Settings.

  6. Under Target Device, select Specific device selected in the 'Available devices' list.

  7. To specify the devices in the selected family from which you want to select a specific device, under Show in 'Available devices' list, select the settings in the Package, Pin count, and Speed grade lists.

  8. If you want to select from devices that will be released in the near future, turn on Show Advance Devices.

  9. Select the target device in the Available devices list.

  10. Click Assign Pins.

  11. In the Assign Pins dialog box, to show the pins for which you cannot assign a node name in the Available pins & existing assignments list, turn on Show 'no connect' pins.

  12. In the Available pins & existing assignments list, select the pin number for the pin to which you want to assign, change, or delete a node name assignment.

  13. To delete the node name assignment from the pin, under Assignment, click Delete.

  14. To assign a new node name to the pin, or change the existing node name assignment for the pin, under Assignment, type a node name in the Pin name box.

    or

    Copy the node name to the Assign Pins dialog box with the Node Finder.

  15. If you added or changed the node name assignment for the pin and you want to assign an I/O standard to the pin, under Assignment, select a standard from the I/O Standard list.

  16. If you added or changed the node name assignment or I/O standard and you want to reserve the pin for future use, under Assignment, turn on Reserve pin (even if it does not exist in the design file), and select As input tri-stated, As output driving ground, As output driving an unspecified signal, or As VREF from the list.  More Details

  17. To save a new assignment and add the assignment to the Available pins & existing assignments list, under Assignment, click Add.

  18. To save the changed assignment and add the assignment to the Available pins & existing assignments list, under Assignment, click Change.

  19. Repeat steps 12 to 18 for each additional assignment you want to make, change, or delete.

  20. Click OK.


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