Anyone done this yet? I want to explore this as a first step in a high frequency, high data-rate capturing oscilloscope for PC. Using USB2.0 I would get a superb datarate and more than enough power to drive any chip for ADC. Accuracy isn't my goal, as in the previous oscilloscope project from piclist.com, I'm after visualizing data. To be able to view a pulse-train and debug communication based on that will be sooo much easier than other means... And, most USB2.0 chips are, as far as I know USB1.1 compliant too. Thus older comps can do captures at lower data-rates instead, meaning either bursts at full temporal-resolution or continous at lower temporal-resolution. Would be sooo great to have a single or dual channel oscilloscope you just cram in your pocket :-) KreAture -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.