[Tinyos-help] Component for USB

[Joe Polastre]

The USB port is a slave (device), and the GPS unit is a slave
(device).  Two slaves cannot talk to each other without a master
(host).  This is a fundamental hardware limitation.

-Joe

On 9/5/07, lamiaimeil <lamiaimeil at yahoo.it> wrote:
> Hi Joe,
> and thanks for reply. Unfortunately I have a GPS that
> have an usb interface and moreover the Uart pin on the
> expansion connector are already used. Can you tell me
> why can't I use the usb on mote? Is a software problem
> (there isn't the right component in moteiv version) or
> is a hardware problem? Can you suggest me a solution?
> Thanks very much.
> Andrea.
>
> --- Joe Polastre <joe at polastre.com> ha scritto:
>
> > The USB interface is dedicated to sending packets to
> > the PC.  You
> > cannot use it to hook up a GPS module.
> >
> > You should use the other USART for this purpose.  If
> > using Boomerang,
> > information is available here:
> >
> http://www.moteiv.com/community/Boomerang_UART0_Sample
> >
> > -Joe
> >
> > On 9/5/07, lamiaimeil <lamiaimeil at yahoo.it> wrote:
> > > Hi Joe,
> > > sorry my fault I don't speak clear. I can't use
> > the
> > > SendMsg interface because I must send bytes on GPS
> > I
> > > have connect to the usb connector of tmote sky and
> > the
> > > SendMsg interface only send TOS_Msg. I need
> > another
> > > component which I can speak with GPS
> > sending/receaving
> > > bytes.
> > > Thanks.
> > >
> > > --- Joe Polastre <joe at polastre.com> ha scritto:
> > >
> > > > Send to TOS_UART_ADDR in TinyOS 1.x/Boomerang
> > using
> > > > the SendMsg interface.
> > > >
> > > > In TinyOS 2.x, use SerialActiveMessageC.
> > > >
> > > > -Joe
> > > >
> > > > On 9/4/07, lamiaimeil <lamiaimeil at yahoo.it>
> > wrote:
> > > > > Hi all,
> > > > > can someone tell me which component I may use
> > to
> > > > send
> > > > > and receive messages using usb connector of
> > tmote
> > > > sky?
> > > > > Now I'm using HPLUARTC component but seems not
> > > > work.
> > > > > Thanks in advance.
> > > > >
> > > > >
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> >
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