
Honken’s new open source USB stack is running on a bunch of PIC 18Fs, even on the MCP2200 USB->serial converter.
Our next goal is to get it going on the PIC 24F. This port is the last major hurdle before producing Bus Pirate v4.
We’ll send you a free Bus Pirate v4 if you get the USB demo working on a PIC24F. The latest debugging details are in the forum, our source is in SVN.
The Bus Pirate v4 development hardware is available for $50, with free worldwide shipping.

nice you still working on v4 without ftdi chip
I’ll try to work on it after my finals. I guess I’m lucky, I already have a board with PIC24FJ256GB110. So probably running on that will guarantee that it will work on BPv4.