altmemddr with 4GB SO-DIMM on DE3

Dear FvM,

thank you for answering!

Actually I asked Terasic (it was about 3 months ago), and got the following answer:

> We are afraid all of DE3 design examples incorporate the Nios II processor into their design.

It was not very helpful for me, because available examples:

1. works only with 1 GB, and the is no access to source or to Altmemddr to modify it to 4 Gb,

2. require NIOS, and it takes about 2MBit of M9K/M144K memory blocks that is unacceptable for my design.

However, may be, in the mean time, Terasic has something new and I will definitely ask them again :)

Would you please suggest me from what point to start in case if Terasic still has nothing for my case?

I know that DDR2 is constructed with pages, generally I can implement it by myself, because I need only few amount of operations:

1. init one block for reading,

2. read the block,

3. close it,

4. recover blocks,

5. init one block for writing,

6. write the block,

7. close it.

Actually I know the theory, but I did not implemented it yet, hence, any tips to do it will be very helpful!

PS: indeed if somebody can share me module for Altmemddr it will be perfect and I will continue to work with my project.

Sincerely,

Ilghiz