http://www.kamptec.de/blog/ 2008-08-28T04:32:26+02:00 http://www.kamptec.de/blog/ http://www.kamptec.de/blog/lib/images/favicon.ico text/html 2007-11-19T14:38:11+02:00 Volker Kamp http://www.kamptec.de/blog/doku.php?id=start&rev=1195479491&do=diff In this blog we show some (hopefully) useful snippets from our daily work. If you have any questions, suggestions or corrections, please contact me. All the information found here is provided as is without any warranty. FPGA Development * Xilinx Bitstream Converter * Xilinx FPGA Configuration text/html 2007-11-12T11:28:23+02:00 Volker Kamp http://www.kamptec.de/blog/doku.php?id=hardware:xilinx-prog&rev=1194863303&do=diff After having converted a binary bitstream of an FPGA into a C-compiler readable header file with this tool, it's time to setup the configuration software for the microprocessor. Hardware The system design used for this snippet is very straight forward. An Atmel AT91RM9200 is directly connected to a Xilinx Spartan3 FPGA via its GPIOs. To make sure that all voltage levels are adapted correctly, read this Xilinx Application Note, as we did :-). text/html 2007-11-12T11:26:41+02:00 Volker Kamp http://www.kamptec.de/blog/doku.php?id=hardware:xilinx-bin2h&rev=1194863201&do=diff If you need to configure a Xilinx FPGA using a microprocessor, you need to have an appropriate electrical interface to the FPGA and a piece of code to do the programming. But first, you need to get the FPGA-bitstream into your microprocessor. One way is to read the bitstream out of an external bit-file, which is located somewhere in the filesystem of your embedded system. This is flexible, since you can change the bitstream without touching any other software.