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Altera_Forum's avatar
Altera_Forum
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16 years ago

SDRAM pll phase shift calculation

Hello. I need to do phase shift on clock going to sdram but i don't know how to do it. I have read some documents where examples are given with values of Th, Tsu and Tco of the used device (the FP...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I'm not sure a set phase shift (ns offset) is possible with classic TAN. It should be with TimeQuest.

Alternately, you could control the phase between your system and SDRAM clock by using PLLs. Refer to the nios2_stratixII_2s60 design examples ($SOPC_KIT_NIOS2/examples/[verilog|vhdl]).

Cheers,

- slacker