On 6 February 2011 06:47, Kim Kirwan <k...@kimkirwan.com> wrote: > Additionally, RTnet.org mentions an RT-Firewire, so maybe those who > have been wanting EMC2 to run over USB would accept Firewire?
There is some code on rtai.org which claims to be a realtime USB stack for RTAI. I have been trying to compile it, but it is badly bitrotted. In fact I am mot sure if the version there could ever have compiled, as it seems to have problems other than changed/deleted/moved kernel calls. I think there might be room for both EtherCAT and realtime USB drivers for EMC2. Running the 7i43 in realtime via USB seems like a very attractive proposition for low-end and small/cheap systems. However the 5m distance limit on USB is likely to suggest EtherCAT for larger and more distribted systems. The EMC2 Hostmot2 drivers already abstract between PCI and Parport interfaces, adding RTUSB seems plausible, if non-trivial. I like Firewire, but it is really quite a rare interface to find built-in nowadays. -- atp "Torque wrenches are for the obedience of fools and the guidance of wise men" ------------------------------------------------------------------------------ The modern datacenter depends on network connectivity to access resources and provide services. The best practices for maximizing a physical server's connectivity to a physical network are well understood - see how these rules translate into the virtual world? http://p.sf.net/sfu/oracle-sfdevnlfb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
