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Honored Contributor

15 years ago

Unconstrained Paths errors

Hi all, I'm having problems with my design Cyclone III with MT48LC4M32B2-7 sdram. I'm new to TimeQuest Analyzer, Clock Phase Shift settings, or Tco, Tpd. Hope someone could help me out to po...

Altera_Forum

Honored Contributor

15 years ago

Have you read the datasheets about how to work with the controller? If you work with the SOPC builder it generates a contraints (sdc) and .tcl file for you.

You can find all the info you need in a datasheet like this (I don't know which controller you use):

http://www.altera.com.cn/literature/ug/ug_ddr_ddr2_sdram_hp.pdf

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Unconstrained Paths errors

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