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When you change the design files for a set of Compiler settings, the Fitter may change the pin assignments for the device. To retain the current pin assignments for future compilations, back-annotate the assignments.
If you turned on Base the Pin-Out File (.pin) and Floorplan Package Views on the Largest Selected SameFrame Device in the Migration Devices dialog box, which is available from the Device page of the Settings dialog box (Assignments menu), the PIN File contains information for the largest SameFrame device in the Selected migration devices list in the Migration Devices dialog box, rather than for the device you specified in the current Compiler settings.
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