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Altera_Forum
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16 years ago

Is a SRAM necessary in a cycloneiii?

Is a SRAM necessary in a cycloneiii system? Can I use a sdram as a program memory instead use a sram? Or can I use two individual sdrams in the same system?
Altera_Forum's avatar
Altera_Forum
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16 years ago

When you create your Nios processor in SOPC builder, select the on-chip memory for the exception vectors. I think it is in the first window of the processor properties.

Then before compiling your application, in the IDE, go to the system library, select the ddr as program memory, and your application will be loaded in the ddr. You can also set there the memory used for static data, stack and heap.

Don't forget to connect the NIOS instruction Avalon master to the DDR controller in SOPC builder!