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Altera_Forum's avatar
Altera_Forum
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16 years ago

How to Connect to SOPC Avalong Bus from outside of SOPC

I'm using the SDRAM with Nios and SOPC, but I also need to write to the SDRAM via logic that is outside the SOPC. How is this typically done? I'm assuming I would need to create a peripheral ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

It is easier to create a component with an Avalon master interface if you intend to share the RAM between your custom logic and other components (such as the Nios CPU). I understood from your first post that this is what you wanted to do.

SOPC builder will automatically create arbitration logic for you to share the RAM, which would be a bit more difficult to do if you had to do it yourself.