Chris Smith wrote: > Eric Brombaugh wrote: >> I also use Xilinx ISE (both full-blown and Webpack) under Linux with no >> difficulties. > > I've used that too, and it's a great source of irritation and amazement > to me that they manage to produce a 1.4GB install file to program a > device the size of a postage stamp! :(
Yes, and that 1.4GB download balloons out to > 4GB after it's decompressed into the final hierarchy. I did manage to strip a whole lot of junk out of it and fit it onto a 2GB SD card for use with an eeePC901 under Ubuntu though. >> or I copy bitstreams to an SD card which is loaded into the FPGA at >> boot time via an on-board MCU. > > Would you mind elaborating a little on this 'bitstream' copying and > loading technique? I've got a home-made board with an NXP LPC2148 ARM processor driving a Xilinx XC3S250E FPGA via one of the SPI ports. At boot time the ARM reads the bitstream out of an SD card via a FAT filesystem, strips off the header and feeds it to the FPGA in slave-serial mode. After the FPGA is configured, the configuration clk/data inputs become a SPI port and that's how the ARM talks to the new FPGA design. More info (and source code) here: http://members.cox.net/ebrombaugh1/synth/armfpga/index.html Eric _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
