Differences between accesing to HPS SDRAM from FPGA vía F2H and F2H_SDRAM

Hello everybody,

I have the Terasic DE10 Nano in a Cyclon V-SoC with 1 GB of external RAM. I can access the working memory via HPS (C code). So I can write values to a specific address space. Now I have to read these addresses in the FPGA. I know I need to add the F2H_SDRAM bridge, but I do not know how to write the VHDL code and the rest of the material.

I have already reserved some memory (512 MB for Linux) in u-boot.

For example, I would like to turn on an LED if the value is 48 in a particular DDR3 address.

I just want to read the DDR3 address space. That's all.

Can someone help me or give me a code? ....

Many thanks