How to use DDR2 for read and write in nexys 4 ddr

[Ajeeth]

Hi, 

I have bought a new nexys 4 ddr board.

Can anyone help me out, how to use on board  ddr2 ram to store my data and to retrieve it back after sometime.

Please help me out with the code or idea to accomplish this aim.

Thank you

[JColvin]

Hi @Ajeeth,

This tutorial uses the Nexys 4 DDR to store audio data in the DDR and then play it back out later. There is also some Nexys 4 DDR SRAM to DDR component documentation available on the Nexys 4 DDR Resource Center that you may find helpful as well.

Let us know if you have any questions about this.

Thanks,
JColvin

[Ajeeth]

Thanks for your kind reply JColvin. Previously i found SRAM to DDR component method, but may i know how to use that particular method. 

[JColvin]

Hi @Ajeeth,

I believe reference component provided for SRAM to DDR IP that you can take a look at. My understanding of that IP is that it is designed so that you can take any old designs for the original Nexys 4 that used the PSRAM component present on that board and readily port them to the Nexys 4 DDR (which has DDR memory instead) without having to change your entire memory controller. It's not intended to be used as a stand-alone IP that you can directly design off of; it's more analogous to an adapter.

Here is another project that uses the DDR2 memory with the Nexys 4 DDR that uses that SRAM to DDR component though.

Thanks,
JColvin