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Altera_Forum
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10 years ago

How to implement DE0 SDRAM as 2-port RAM

I currently use the tiny bit of memory on the FPGA for a computer vision project but it's way too limited. I have a stand-alone SDRAM controller from Altera (partially pasted below) but I need one mo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

1. download the vendor model I found them here (http://www.issi.com/us/product-dram-sdr.shtml) but there are two choices: ibis-tsop (http://www.issi.com/ww/models/ibis/42s16400j_t.ibs), ibis-bga (http://www.issi.com/ww/models/ibis/42s16400j_b.ibs) any idea which one I should use? TSOP

2. install the model in the system_sim directory.Do you know where this folder is? I haven't been able to find it.

3. add the vendor file to the list of files passed to 'vcom' in setup_sim.do.Do you know where setup_sim.do is?

4. instantiate sdram simulation models and wire them to testbench signals. Is this (A) the same as what I would already have for the SDRAM instance, or is it ( B ) a different entity that takes the place of my SDRAM instance with different port signal names?