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gyuunyuu's avatar
gyuunyuu
Icon for Contributor rankContributor
7 years ago

DDR3 does not seem to fit into MAX10 10M16

I have a "DDR3​ SDRAM Controller with UniPHY Intel FPGA IP" instantiated on its own in a design with no other logic. When I compile the fitter is not able to place 8 pins. The error messages are in t...
Abe's avatar
Abe
Icon for Frequent Contributor rankFrequent Contributor
7 years ago

Looks like the Pin assignments are incompatible for the following pins:

RAM_BA0

RAM_BA1

RAM_BA2

RAM_CAS

RAM_RAS

RAM_CS1

RAM_WE

RAM_ODT

These pins which need 1.5V are being assigned to Banks which are already configured for 1.2V . Check the pin assignments and change them to the proper Banks for 1.5V and compile. This should solve the issue.