Data Logging from FPGA to PC

Why RS485 and not RS232 or just the UART signals directly from the FPGA?

FTDI have a series of cables that you might be able to use. For example,

http://www.digikey.com/product-detail/en/c232hd-ddhsp-0/768-1011-nd/2767783

This cable can be connected directly to 3.3V logic level pins on the FPGA, and those pins can internally connect to a UART inside the FPGA.

At that point, you can use standard serial communications on your PC.

FTDI show RS485 connections in their data sheets, so they may also have pre-made cables that support RS485. Check out their web site www.ftdichip.com.

Cheers,

Dave