How can i configure External Memory as Nios II processors mem (Arria10 SoC Dev Kit)

Hello,

I have Arria 10 SoC Development Kit (it contain 2GB DDR4 - 256Mb x 72 x single rank) and i want to configure NIOS system.

I saw some tutorials and finally made a system that contain NIOS-ii processor, On-Chip Mem, Timer, JTAG, system_id perp. My system will execute uC/OS Application.

However, On-Chip Memory is too small to run my application.

So, I want to change my On-Chip Memory component to External DRAM component but there are no document or tutorial to use it as NIOS processors memory. (or i can't find it)

I unpacked arria 10 document files that contain DDR4 example files. I executed it and it worked. but i can't make connection between these example and Nios processor.

Can anyone help me how can i configure External DRAM as Nios Processor memory?

Sorry for my english and explain skill. Thank you.