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Altera_Forum
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16 years ago

Interacting with NIOS II Processor

Hi there, If a Nios II processor needs to control the rest of FPGA logic through a set of registers and also monitor the status through another set of registers, what is the preferrable way of ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hello,

To interface custom logic with the Nios II Processor, the best way is to use an Avalon Interface. See the Avalon Interface Specification for detailed explanation (http://www.altera.com/literature/manual/mnl_avalon_spec.pdf).

There are different types of interface defined (Memory Mapped, Streaming, ...), and according to what you said, you would use the Avalon Memory Mapped and Conduit.

Look at the specification, and if you still have interrogation, ask.

Jérôme