For those guys that used Gligli's JTAG cable schematic to build their own. I am pretty sure someone on XBH found an error on one of the connections. Just mentioning in case the schematic they are using hasn't been updated and their wiring is based on incorrect schematic.
i dont think it is completly faulty, i verified my cable with a xc9572xl before my boards arrived and it worked like a charm. did not work on my xc2c64a so i made another cable without all resistors and diodes and that one worked for my boards.