USB device


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  1. #1
    Haitham Rifai's Avatar
    Haitham Rifai Guest

    Default USB device

    Dear All

    I wonder if it is possible to communicate a pic16f877 to a usb device, without the pc involvement. For instance I want to control a small car using a usb mouse, is it possible ?

    Thank you

  2. #2
    Join Date
    Oct 2004
    Posts
    448

    Default

    No; not with PBP, anyway.

    To begin with, the 16F877 has no USB support. Even if you do use a flash PIC with USB, that is *not* a host port; which means, with PBP, you can only connect it to a USB host such as a PC port. I guess one could write low level routines to make the PIC act as a host, but that would be complex, to say the least.

    Regards,

    Anand.

  3. #3
    arthurok's Avatar
    arthurok Guest

    Default usb

    usb isnt a simple protocall its similar to half duplex cdma ethernet
    even the pic 18 isnt designed to be a host just a device connected to a host .

    i believe that in the near future most coputers will be shipped with
    no serial or parallel ports just ethernet , usb 2 and maybe firewire
    actually you can connected everything just using usb 2 and converters +hubs if you run out of connections
    stuff a bluetooth into a usb .
    apple had this plan years ago when perfected its a great concept
    pbp only allows you at the present time i believe to talk to a pc using usb emulating a serial port .
    its not really the sophistication level we need in our modern times

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