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Ixiasoft
1.3. Hardware Migration from Nios II Classic to Nios II Gen2 Processors
The Qsys IP and system interface for the Nios II Classic and Nios II Gen2 processors are the same. This enables you to directly replace the Nios II Classic processor in your existing project with the new Nios II Gen2 IP with minimum effort. Qsys re-generation and project re-compilation is required after replacing the existing Nios II Classic IP.
Starting in the Altera Complete Design Suite (ACDS) 14.1, migration of Nios II Classic to Nios II Gen2 is automated. You will have a choice of upgrading your Nios II system when a Nios II Classic project is opened in Quartus 14.1 and above.