The Cyclone II FPGA has a few different methods for configuration as described by the Altera Cyclone II Handbook: The third post will show the Python code used to push the FPGA configuration file down to the FPGA bit by bit. This post, being the second in the series, will cover the hardware modifications required to interface the FT232RL with an FPGA setup. The first has already been uploaded: libFTDI v0.18 with Ubuntu (Lucid Lynx), which describes how to install the proper version of the hardware drivers on Ubuntu. I’m going to break this tutorial up into three separate posts. As I alluded to in a previous post, I’ve come up with a way to program my Altera Cyclone II FPGA with a $15 FT232RL USB to UART Bridge, avoiding the $300 investment in one of Altera’s USB-Blaster cables.
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