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???
07/24/12 20:41
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#187970 - CoreGen FTL
Responding to: ???'s previous message
Jez Smith said:
WARNING:Xst:753 - "C:/Projects2012/spartan3e brd/DCM/DCMtry1/try1/try1/pulsegen.vhd" line 25: Unconnected output port 'CLKIN_IBUFG_OUT' of component 'myDCM'.
WARNING:Xst:753 - "C:/Projects2012/spartan3e brd/DCM/DCMtry1/try1/try1/pulsegen.vhd" line 25: Unconnected output port 'CLK0_OUT' of component 'myDCM'.
WARNING:Xst:2211 - "C:/Projects2012/spartan3e brd/DCM/DCMtry1/try1/try1/pulsegen.vhd" line 25: Instantiating black box module <myDCM>.
WARNING:Xst:1780 - Signal <clk0out> is never used or assigned. This unconnected signal will be trimmed during the optimization process.
WARNING:Xst:1780 - Signal <cigo> is never used or assigned. This unconnected signal will be trimmed during the optimization process.
However when I implement the design I get this error message:
ERROR:NgdBuild:604 - logical block 'Inst_myDCM' with type 'myDCM' could not be
resolved. A pin name misspelling can cause this, a missing edif or ngc file,
case mismatch between the block name and the edif or ngc file name, or the
misspelling of a type name. Symbol 'myDCM' is not supported in target
'spartan3e'.

is down to coregen loosing or corrupting it project file, it happens all the time which is another reason i don't use coregen.


Sounds like CoreGen didn't do the right thing. I don't know if it generates an NGC which is used by the design or not. If it does generate an NGC then it needs to be added to the project.

But yeah, I don't use CoreGen so I don't know why it fails.

List of 19 messages in thread
TopicAuthorDate
VHDL DCM problem            01/01/70 00:00      
   coregen            01/01/70 00:00      
      Example found in tool itself!            01/01/70 00:00      
         Xilinx DCM            01/01/70 00:00      
            BUFG            01/01/70 00:00      
               re: BUFG            01/01/70 00:00      
                  Can you share it?            01/01/70 00:00      
            Basically don't use coregen            01/01/70 00:00      
               Altera and Xilinx , probably lattice soon            01/01/70 00:00      
                  Altera joy            01/01/70 00:00      
                  USB blaster clones            01/01/70 00:00      
   it's working!!!!            01/01/70 00:00      
   this warning...            01/01/70 00:00      
      I don't know            01/01/70 00:00      
         new warning            01/01/70 00:00      
            contraints            01/01/70 00:00      
               No change to source            01/01/70 00:00      
                  Timing Constraints            01/01/70 00:00      
      CoreGen FTL            01/01/70 00:00      

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