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Altera_Forum
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9 years ago

Using Qsys SRAM and SDRAM controllers without a Nios II

I need to communicate with the SRAM in the DE2-115 board using purely VHDL code. No Nios II. Later I may have to use the SDRAM instead if bigge memory is required. I understand that a controlle...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

You can create a Qsys system with just the SDRAM controller and then export the Avalon-MM interface and have your VHDL code connect to that. i.e. the Qsys system in this case is more like an IP block, with SDRAM pins on one side, and Avalon-MM on your VHDL side.

At some point, you may find it simpler/easier to just package your VHDL code in a Qsys IP component, and if you agree things are headed that way, I would recommend shifting sooner rather than later.