OpenOCD is an Open Source On-Chip debugger which acts as the software layer to control your JTAG interface.
For the OpenPilot project we needed a way of programming and debugging the STM32 microcontroller. The easiest way to do this was using OpenOCD with the Olimex “ARM-USB-TINY-H” JTAG device.
Without going into the details here, if your interested in using OpenOCD on Windows (either 32bit or 64bit) then check out the guides on the OpenPilot wiki that we have created. They are easy to follow and include pictures to help you through the process.
http://wiki.openpilot.org/OpenOCD_Compile_on_x86
http://wiki.openpilot.org/OpenOCD_Compile_on_x64
It’s quite hard to find this information or find information that is up-to-date, so hopefully this helps someone out.