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Altera_Forum's avatar
Altera_Forum
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10 years ago

link Nios and FPGA via FIFO

Hi, I'm using Quartus 9 on a stratix II FPGA. On the system i have a nios 2 processor. I'd like to have a FIFO from the FPGA to the Nios, but using SOPC builder, i don't see an "easy way" ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Sorry about that - yes, you're right SOPC Builder won't let you do that. Skimming the SOPC Builder User Guide (https://www.altera.com/en_us/pdfs/literature/ug/ug_sopc_builder.pdf) it looks like the expectation is that you would then implement a dummy component to convert the Avalon-ST to a Conduit in order to get the wires in the top level export. While it's a trivial module to implement, it's certainly inconvenient.

So the answer to your original question is: no, there is no existing SOPC Builder IP and yes you need to create your own component to do this.

(or, update your tools to Qsys)