Icebear jtag
From Hackerspace Brussels
About[edit]
The Icebear JTAG is a usb jtag adapter manufactured by Section5. It is based on a FTDI 2232 chip, which is very popular among USB JTAG adaptors.
Lsusb[edit]
# lsusb Bus 003 Device 020: ID 0403:c140 ..
Urjtag[edit]
In urjtag you can load the jtag cable driver:
jtag> cable FT2232 vid=0x0403 pid=0xc140
OpenOCD[edit]
OpenOCD has a config script ready
#cd /usr/share/openocd/scripts #cat interface/icebear.cfg interface ft2232 # ft2232_device_desc "" ft2232_layout icebear ft2232_vid_pid 0x0403 0xc140
Pinout[edit]
| VCC | 2 | 1 | GND |
| GND? | 4 | 3 | missing |
| TMS | 6 | 5 | GPIO1 |
| TCK | 8 | 7 | GPIO0 |
| TRST | 10 | 9 | RX (UART) |
| TDI | 12 | 11 | TX (UART) |
| TDO | 14 | 13 | GND |
