Hello, I am following the steps in the following tutorial:
http://www.elektronikpraxis.vogel.de/fileserver/vogelonline/files/419.pdf I arrived at launching the external tool: “OpenOCD Programmer”, but I am having the following problem in the console: Info:    openocd.c:84 main(): Open On-Chip Debugger (2006-11-22 14:00 CEST)
Error:   ft2232.c:164 ft2232_write(): FT_Write returned: 4
Error:   ft2232.c:346 ft2232_send_and_recv(): couldn’t write MPSSE commands to FT2232 Knowing that the drivers are properly configured in windows, how can I proceed to identify the source of the problem? Thanks.

Well, it worked. The board was powered from a USB hub without mains power, which lead to the inability to write anything to it.