kopfkopfkopfaffe:
Can you post your layout and pictures of the board (bottom side)?
For Sure. The layout its in « Reply #2 on: April 03, 2013, 11:49:05 PM » on this thread. I added here anyway.
Its the third position from the initial post (the initial its the first).
I also attached a bottom side pictures. I dont know if you want to see something in particular. Just let me know.
This answer took a while because I made some small improves of the board, and i did a new one. New board, new components, new microcontroler, same problem.
I had the theory that It colud be something with the micro, but the new board has exactly the same problem, the bootloader (Caterina-Leonardo) looks like working because the blink, but USB is not working. Because of that I think I have a design electrical mistake, but..I dont now where :S
leolivre.pdf (62.4 KB)