On Fri, 22 Mar 2002 10:35, Ping Wang wrote: > Hi, > I was wondering, since USB is based on a "polling" protocol and is not > really designed for realtime (time-critical) applications, I was wondering > if anyone has any experiences or thoughts about this. Can one still use > USB? I did some work on this. All true realtime protocols are based on polling from a single controller, cf MIL-STD-1553.. If you allow real interrupts, you can't make delivery assurances for other traffic (eg isochronous). That said, USB wasn't intended to do hard real-time, and you need to evaluate the application against the USB protocols.
> How would it compare to say CAN (Controller Area Network) in realtime apps? Don't know - not used CAN. _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
