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Altera_Forum's avatar
Altera_Forum
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16 years ago

ddr2 sdram

Hello, I'am new to SOPC build,and sorry for my poor english. I have bought a dsp development kits from alter,and there is an ddr2 sdram on this development board. this is the development kits I...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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I am glad to know that I could give help.

I don't exactly know why that error occurs, anyway you should not leave the standard design and just apply your modifications on it cause the project has its own constrains (refer to Assignments > Assignment Editor > Categories > Timing.)

good luck

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I am happy to tell you that I have solved my problem.

The clock for ddr2 sdram controller has 0 degree phase,but the clock for ddr2 sdram write has -90 degree