Since i have similar problem I will post here.
I found something interesting.
https://community.cypress.com/thread/27549?start=30&tstart=0
There is FX3 loopback test attached:
https://community.cypress.com/servlet/JiveServlet/download/122338-26247/FX3USBnoise3.zip
I used this to upload the image to ram. Remove FX3 jumpre reset chip an load image with cyfwprog available here:
http://www.cypress.com/file/138806/download
Run test FX3USBTest.
It seems like communication problem between PC and cypress.
@IgnasJ can you comment on that? Is that the root of all problems?
