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Altera_Forum's avatar
Altera_Forum
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12 years ago

how to achieve the communication between niosII system and FPGA module

I builded a niosII system use the SOPC builder，and now I need to communicates with a FPGA module through the niosII system，How do I achieve it？ I have search some Informati...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

You can add Avalon bus interface to your FPGA module. Here more details about the bus: http://www.altera.com/literature/manual/mnl_avalon_spec.pdf

What kind of data do you need to access in your module? It the data volume is low you can simply implement Avalon MM Slave interface and poll periodically the registers from Nios II.