Amontec JTAGkey Undedicated USB to JTAG cable Based on FTDI FT2232 Amontec JTAG Pinout Including Official ARM 20-pin Connector ( JTAG Pin-out ) Amontec JTAG Accelerator Now fully supported by OpenOCD JTAG software. Amontec sdk4arm Software Dev. Kit for ARM Eclipse - GCC - OpenOCD - JTAGkey - your arm target board