DE0 SDRAM Control Panel Addressing

I figured it out. For people who want to know what they are really dealing with, addressing is like that:

As you increase address from 0x000000 one by one SDRAM's Bank0's columns increase upto Bank1's last column then it returns to Bank0 this time row number increased by 1. This process goes to the last row and column of Bank1 then it switches to Bank2 and Bank3 with same process until the last row and column of Bank3 which is addressed by Control Panel as 0x3FFFFF.

You can use control panel to write SDRAM and then you can read the data with a simple SDRAM reader.