cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Visitor
Visitor
16,528 Views
Registered: ‎07-31-2008

NgdBuild:924 - input pad net 'CLK_in' is driving non-buffer primitives:

 iam getting the following error in translate when using spartam 3. my program is  to simulate a fifo. what is this error?

 NgdBuild:924 - input pad net 'CLK_in' is driving non-buffer primitives:
     pin C on block D_0 with type FDE,
     pin C on block D_1 with type FDE,
     pin C on block D_2 with type FDE,
     pin C on block D_3 with type FDE,
     pin C on block D_4 with type FDE,
     pin C on block D_5 with type FDE,
     pin C on block D_6 with type FDE,
     pin C on block D_7 with type FDE,
     pin C on block D_8 with type FDE,
     pin C on block D_9 with type FDE,
     pin C on block D_10 with type FDE,
     pin C on block D_11 with type FDE,
     pin C on block D_12 with type FDE,
     pin C on block D_13 with type FDE,
     pin C on block D_14 with type FDE,
     pin C on block D_15 with type FDE

 

can any one help ?

 thanks

 

0 Kudos
3 Replies
Highlighted
Xilinx Employee
Xilinx Employee
16,503 Views
Registered: ‎01-03-2008

Re: NgdBuild:924 - input pad net 'CLK_in' is driving non-buffer primitives:

The error message is very clear.  You have an input pad that is connected to something other than an input buffer. 

 

All external pins most either be connecting to an input buffer (IBUF) or an output buffer (OBUF).

------Have you tried typing your question into Google? If not you should before posting.
Too many results? Try adding site:www.xilinx.com
0 Kudos
Highlighted
Anonymous
Not applicable
12,801 Views

Re: NgdBuild:924 - input pad net 'CLK_in' is driving non-buffer primitives:

so how to avoid this   ???

0 Kudos
Highlighted
Xilinx Employee
Xilinx Employee
12,754 Views
Registered: ‎01-03-2008

Re: NgdBuild:924 - input pad net 'CLK_in' is driving non-buffer primitives:

so how to avoid this   ???

 

Insert and input buffer (IBUF or IBUFDS) and only connect to the signal after the input buffer.  

 

 

------Have you tried typing your question into Google? If not you should before posting.
Too many results? Try adding site:www.xilinx.com
0 Kudos