> You subject line says RS485/CAN which are dramatically different from the SPI based synchronous clocked serial interfaces. Even RS485 and CAN are dramatically different.
Thanks for the replies... The question was around slower RS485/CAN. I'm seeing a lot of actuators (motor/gearbox/driver combinations) that are driven by CAN bus (MIT cheetah). Brute speed seems to be a common solution, which I'm guessing protocols like EtherCAT rely on. Given the CAN bus speed limits - 1MHz, it doesn't seem possible to send/receive messages to many motors at a typical LinuxCNC 1kHz rate. Is there some kind of "smarts" that let these control systems work smoothly at lower update rates? _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
