Polygonhell Posted May 3, 2015 Report Share Posted May 3, 2015 I got my papilio pro board a couple of weeks ago, I'm an experience programmer but I'm new to FPGA, I've read a couple of books on VHDL, and for the most part I understand the basics, I spent the last couple of days implementing an SDRAM controller. I did finally get it working, but it became really apparent my understanding of when to use OBUF's, BUFG's etc etc, was at best an educated guess.Is there a good discussion on when and why to use the SelectIO resources, I've read the Xilinx piece, but while I think I understand what they are, I have no intuition on when or why to use them.Thanks Quote Link to comment Share on other sites More sharing options...
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