CAUSE: | You tried to back-annotate pin assignments, but the selected device has preliminary support. Because pin-out information for devices with preliminary support is subject to change, the Quartus II software cannot back-annotate pin assignments for this device. |
ACTION: | No action is required. If you want to use this device, contact Altera for information on its availability. Otherwise, if you want to back-annotate pin assignments for your design, select a device for which pin-out information is available. |
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