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xilinx:ucf [2014/05/28 17:23]
mcmaster-guest [Fixing]
xilinx:ucf [2014/05/28 17:23] (current)
mcmaster-guest
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 [AR39966] mentions something about replicating IODELAYCTRL even in the simple case...I'​m unclear what this means. ​ It might mean in some cases there are multiple IODEALCTRLs per bank and they are saying "​don'​t worry about that" when so. [AR39966] mentions something about replicating IODELAYCTRL even in the simple case...I'​m unclear what this means. ​ It might mean in some cases there are multiple IODEALCTRLs per bank and they are saying "​don'​t worry about that" when so.
 +
 +If you *really really really* need to specify them manually, this is for you: [AR36554], section "​IDELAYCTRL LOC calculation"​. ​ In particular, " X location should be taken as is for IDELAYCTRL LOC and the Y location value is equal to the Y location value of the u_odelay_rsync LOC constraint divided by 40 (rounded down). For example, if the u_odelay_rsync LOC constraints is IODELAY_X2Y181,​ the IDELACYCTRL constraint value is IDELAYCTRL_X2Y4."​.
  
  
 
xilinx/ucf.txt ยท Last modified: 2014/05/28 17:23 by mcmaster-guest
 
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