Honored ContributorHi,
I have a basic doubt. In the Nios design, what SDRAM controller do we use? Do we use the simple SDRAM controller or DDR3 SDRAM controller with UNIPHY? What is the difference between the two and how do we decide which to select? Thanks.
Honored ContributorThe memory controller selection is driven by the components populated on the hardware you are using. If you're using a board with DDR3, you use the DDR3 IP. If you're using a board with traditional single data rate SDRAM, use the SDRAM controller.
Honored ContributorI see. So my board has a DDR3, so thats that.
Also, Where can I find how to make the pin-connections required for the sdram controller?Honored ContributorLook at this Lab Manual for the BeMicro kit: http://www.alterawiki.com/uploads/5/5e/bemicrom10_embedded_system_lab.pdf
In section 5.3.6 they show what connections are to be made for the SDRAM controller. Good Luck!Honored ContributorAre you using a development board? They generally have a "golden top" reference design that gives you a sample pinout with most interfaces connected. The interfaces are quite flexible so you can pinout identical to the development kit, or if you have your own board, just use this as guidance.
Honored Contributor
