For many embedded systems USB seems to be a good solution for data acquisition

modules - as USB supports a frame rate of 1 ms which is fast enough for many

feedback control applications. The problem now is that USB is currently only

supported by Windows 98 and updates of Windows 95. The design of the USB host

controller again emphasizes the possibilities using USB in an embedded System:

Once the USB communication is established, the host controller can work in the

background using DMA-memory transfers - accompanied with a synchronous

interrupt every millisecond, a real time feedback control system is easily

established.