Community
cancel
Showing results for 
Search instead for 
Did you mean: 
SOkte
Novice
183 Views

Preserving an Instance

What is the synthesis attribute for preserving an instance (not register)

example: Blockram instance whose outputs are not used.

0 Kudos
2 Replies
sstrell
Honored Contributor II
57 Views

There is none. If a block is not used, it might get optimized away.

 

If you want to do this, the easiest way to do it would be to add virtual pin assignments in the Assignment Editor on the outputs of the block.

 

#iwork4intel

KennyT_Intel
Moderator
57 Views

you can set it as a design partition, once it is set. Usually, it wouldn't simply optimized away the output of your block ram. But you had to make sure that your output of the ram is in the boundary of the design partition.

Reply