Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

DDR2 External Memory Interface

Hi, I want to test one DDR2 memory using the example with ALTMEMPHY megafunction on cyclone IV, it compiles without errors or critical warnings, but when I use the ALTMEMPHY External Memory Interf...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I've read from the uniphy doc that calibration failure at the read stage usually involves problem with address/command clock phase and address/command board skew and delay. what numbers did you use for those parameters?