Hi group-
Does anyone know if the USB frame messages sent to all USB devices connected to the same computer are guaranteed to be synchronous and in lock step?
Please excuse my limited knowledge of USB. The reason I'm asking is that I'm looking into the implementation of a USB based sensor where, when muliple sensors are connected to the same computer, they must all sample the sensing voltage to within 10 msec of each other. It seems to me that the frame message is a convenient heartbeat that I can use only if it's synchronous with other USB devices and there are no dropped or lost frame messages.
Thanks, John.