JTAG flashing Proxmark3 using Bus Pirate
Bus Pirate, JTAG and tagged JTAG, Proxmark3.
Sure, there are cheap, hackable alternatives that connect to the parallell port, but that interface is unfortunately of a pretty bygone era. So given that I did not have access to a true parallell port at the time, I had to keep looking for alternatives. Essentially anything that worked with the flashing and debugging utility OpenOCD would be good, and something I could find nearby would be even better! And the OpenOCD list of supported interfaces contained among many others the Bus Pirate, a handy open hardware design that helps hackers with serial communication of just about any kind.