Warning XST: 2677 - Node of sequential type is unconnected in block

[State]

When I am synthesizing my code with Xilinx ISE 9.2 I am getting the following warning about 2000 time.

Xst:2677 - Node <my_signal> of sequential type is unconnected in block <block>.

I am a little worried since I really don't know what exactly what could be the source of the problem. So if anybody could give any tips it would be greatly appreciated.

State

 

[snake0204]

warning:xst:2677

That warning is caused by lot of things.....

One main reason is if your outputs are not connected..ie if you are not reading the module outputs the ise optimisation step removes all signal inside your block and fire a 2677 warning...

check the module outputs

S

 

[State]

of sequential type is unconnected in block

Thank you got it perfectly right. I had actually forgot to link my register to the output..

Sate

 

[vipinlal]

Warning XST: 2677

this kind of errors common in xilinx.hope that this helps you:
https://vhdlguru.blogspot.com/2010/03/synthesis-warning-node-of-sequential.html