Originally Posted by robinsonb5
You will also need an RS232 line driver (Max3232 or similar) - those pins are connected directly to the FPGA, so directly applying RS232 voltages will fry the FPGA. If you just want to connect it to a PC, however, you could use a USB serial/TTL adapter, as long as you pick one that uses 3.3V levels, not 5V levels.
Yes, of course, thanks for warning. Actually, for my needs it makes more sense to get a bluetooth adapter instead of a DB9 socket, and just do nullmodem over BT. I have done this with the minimig using an rs232/BT adapter, and one can get cheap BT adapters (controlled using AT commands) that I believe can be hooked up directly.