# Xilinx Design ISE Tools - See used Block RAMs

I guess that a pretty easy questions but I really couldn't figure it out. I made a design with the Xilinx ISE Design Tools which uses a lookup table which is saved within the BlockRAM. Where do I see the amount of how many BlockRAMs I used and how many are still free?

I guess it must be somewhere within the Design Summary but I really can't find it.

• The Synthesis Report (.syr) file is plain text, you can search it with a text editor. – Brian Drummond Nov 10 '15 at 13:05

If there is no such line, then your lookup table has not been synthesized to block RAM. Open the Synthesis Report from the left tree in the Design Summary tab. Search for XST:3218 meaning that your lookup table was to small and has been implemented as LUT-RAM.