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Altera_Forum
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14 years ago

Nios - Problem to Read from DDR3

Hello everyone, I am working with the Arria II GX FPGA along with Quartus 10.1. I am trying to write data into an external ddr3 memory (2 gbits) using the altmemphy ddr3 memory controllers...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

If this is a custom board (i.e. not a dev kit) then I recommend finding the datasheet for your particular memory device if it's not already listed in the memory presets. If you randomly picked some DDR3-SDRAM preset that doesn't match your own memory then you won't have much of a chance getting it to work without changing the timings manually.

Last but not least is your design meeting timing in Timequest? If not then that could be your problem.