Uwe Dippel wrote: > Therefore, the topic 'host' on USB is and remains a hot one.
By the way, if someone wants to experiment, here's an idea: At least one purely software implementation of USB device functionality exists, in the form of V-USB for AVRs: http://www.obdev.at/avrusb/ You could take the same approach and try to apply it to the Ben for the host side. Host should even be easier than device because all activities on the USB bus are initiated by the host, which leads to a very narrow time window in which the host would have to wait/poll for data. On the electrical side, much of what you need could be accomplished with UBB. You'd still need to supply 5 V (for development, an external supply would do. Later, you could add a step-up converter to supply, say, 5 V at 100 mA from the Ben). You'd also need a few logic gates to sort out the pull-up/down resistor situation for detecting Low- and Full-Speed, but that can probably wait, too. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
