hi all,
i built the hardware which is shown in the datasheet using bus powered one. but when i plug it usb, windows xp says to me that u have a problem with your hardware and plus, even so i installed CDM drivers, i cant see that in the program add and remove list. then whats the problem?
Pisoiu is right. I've had the exact same error when I've swapped the two USB data lines by mistake. There's also a very good troubleshooting guide at the FTDI site.