Hi all, I use the USRP X310 and I want to import top block code that include few blocks into one new block of RFnoc. I find an explanation how to import one IP from Xilinx into RFnoc block in the following website: http://www.synchronouslabs.com/blog/creating-a-custom-rfnoc-block-with-using-xillinx-ip In my case, I use Vivado system generator to connect 6 FIR filters that connected together, and I create top block. I try to import the top code into RFnoc block, by following the explanation in the website above, and I am a little stuck. I add all the .xci file and the top file to the ip directory. My problem is, that when I run the uhd_usrp_builder.py script to create the bin file, I get an error that the top module cannot found. Can please someone know how to solve my problem. Thank in advance Ishai The information in this e-mail transmission contains proprietary and business sensitive information. Unauthorized interception of this e-mail may constitute a violation of law. If you are not the intended recipient, you are hereby notified that any review, dissemination, distribution or duplication of this communication is strictly prohibited. You are also asked to contact the sender by reply email and immediately destroy all copies of the original message.