> Peter, > > I work on a daily basis with Ethernet as a system and network > administrator. > > We're talking about a Real Time Ethernet, with a dedicated master and > slave network interface, which should preclude any worry of collisions > on a duplex connection between the two. Modern systems with full duplex > connections no longer really rely on CSMA/CD. As defined in 802.3, > that's just one of the protocols that have been used, not the only way. > > The reason we're talking about Ethernet as one of the possibilities for > communications between the computer and the controller is the > possibility of the ultimate demise of the parallel port, and the > difficulties of real time communications on the USB bus. > > So, Real Time Ethernet ain't quite your Granddaddy's TCP/IP or USB > protocol. Well, Mark, my granddaddy died in 1960. Concerning Ethernet, I was thinking of the times when I worked close to the IEEE 802 group way back when Siemens participated in technical innovation...
It's just that I was so happy that PC's, being cheaply available and relatively easy to write programs for, have such a simple port as the parallel is. Well, I either will have to get used to the idea of writing special programs for dedicated processors again or else....?? Whenever I had the impression to have cought up on technological development, it was running away again... Peter Blodow ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. Collect, index and harness all the fast moving IT data generated by your applications, servers and devices whether physical, virtual or in the cloud. Deliver compliance at lower cost and gain new business insights. http://p.sf.net/sfu/splunk-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
