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Altera_Forum
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12 years ago

Interfacing DDR2 with cyclone-4 FPGA

Hello Sir/Madam I want to interface DDR2 with Cyclone-4 EP4CE55 FPGA device bu I am not getting how to do the pin mapping. Are there some dedicated pins to map DDR2 in Cyclone-...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

If in doubt, I strongly recommend you let the tools choose the pinout for you. Put your design together instantiating the DDR2 phy (ALTMEMPHY or UniPHY) and run it through Quartus. Once you have an initial pinout you can either; commit to it, or; alter it (to help with PCB layout), running your changes through Quartus each time to ensure the changes you wish to make are valid.

Further help from Altera on DDR2 is available here: external memory solutions center: ddr2 sdram (http://www.altera.co.uk/technology/memory/dram/ddr2/mem-ddr2.html)

Regards,

Alex