IceCube is the nickname for the FreeScale MPC5200LITE evaluation board which seems to be the basis for boards from a number of other vendors. The most complete and up to date information will be found on the RTEMS Wiki. We know of the following boards which are the IceCube: + FreeScale MPC5200LITE + Embedded Planets EP52000 (does not ship with U-Boot) U-Boot supports this board very well. When using U-Boot the following command sequence is used to transform an ELF file into a U-Boot image. powerpc-rtems4.8-objcopy -R -S -O binary hello.exe hello.bin cat hello.bin | gzip -9 >hello.gz /opt/embedded/tools/usr/bin/mkimage \ -A ppc -O rtems -T kernel -a 0x10000 -e 0x10000 -n "RTEMS" \ -d hello.gz hello.img These ttcp results were between an EP5200 and Dell Insprion 9400 running Fedora 7. A private network was used. >>> ttcp -t -s 192.168.1.210 ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.1.210 ttcp-t: socket ttcp-t: connect ttcp-t: 16777216 bytes in 1.58 real seconds = 10385.86 KB/sec +++ ttcp-t: 2048 I/O calls, msec/call = 0.79, calls/sec = 1298.23 ttcp-t: 0.0user 1.5sys 0:01real 100% 0i+0d 0maxrss 0+0pf 0+0csw >>> ttcp -r -s ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp ttcp-r: socket ttcp-r: accept from 192.168.1.210 ttcp-r: 16777216 bytes in 1.78 real seconds = 9194.86 KB/sec +++ ttcp-r: 3499 I/O calls, msec/call = 0.52, calls/sec = 1963.67