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Altera_Forum
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12 years ago

Load custom-data to On-Chip memory

Folks, what would be the best way to load custom data to the on-chip memory of a Cyclone IV FPGA, preferably at start up. Eventually a NIOS II application reads data from a flash device and sto...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

If the data is truly static: Just make it a ROM in the custom logic side of the design (FPGA fabric). Then it will be there at startup.

Even if it isn't static, but can be modified by the NIOS, having the ram defined as a two port ram where the NIOS can read/write to it and the custom logic can read from it, can still have a INITIALIZATION FILE defined that it starts up in a known state.

Of course it could just be a two port ram that the NIOS just initializes everytime as well.

Pete