Our IP cores can be tested in different ways without obligation and risk. For a selection of purchasable development kits we offer a free evaluation without NDA and time limit via download. With the included documentation you bring the bitstream to your demo board and are able to test the performance with the included software.
If you want to look at the cores in detail and e.g. make your own test design, we offer you the evaluation in form of a free 30 days license. In this case however, we require an NDA.