The gnICE+ is the latest and most feature complete Open Source USB High-Speed JTAG In-Circuit-Emulator for Blackfin processors. gnICE+ is a more than 10x faster compared to the gnICE but still low cost. It's designed to provide both mechanically and electrically reliable JTAG debugging and CFI NOR Flash programming via USB High-Speed The gnICE+ JTAG Adapter Cable is an Open Source Hardware, based on the FT2232H chip from Future Technology Devices International Ltd.

Schematics can be found here:

Schematics

See the buy_stuff page for purchasing information.

Features:

• USB 2.0 High Speed (480Mb/s)
• JTAG clock (TCK) programmable up to 30 MHz
• Link Status LED
• UART Activity LED
• UART 3.3V TX/RX Pins accessible via trough hole pads with transfer data rates up to 12Mbaud
• 3 user programmable GPIOs accessible via trough hole pads with

Supported OSes:

• Linux (any distribution)
• Mac OS X
• Windows 2000 and newer

Software

• The Blackfin toolchain fully supports this ICE

Supported Blackfin derivatives:

• All listed at features

• Example gnICE gdb debugging
• Example gnICE flash programming
• JTAG Communications
• Using multiple gnICE USB cables simultaneously
• Troubleshooting Hints and Tricks

The gnICE+ features six auxiliary signals routed to through hole pads, located besides the Mini-USB Jack.

Utilizing the Serial Interface

Controlling the auxiliary GPIOs