Lpc2000

Actually I'm very glad he brought up the subject.  I was wondering if it
were possible to use a USB drive to extend memory on devices that may not
have an SD slot.  But, that's that.

However, getting back to the original topic...

It would be interesting to make the LPC2148 act like an external hard drive
to the PC, such that you could download a code update file to it. Then when
you reboot the board, it could read that file as a program update.  I think
this sounds like embeded Linux... :-)

So far I only have an LPC2106 device to play with, but all this talk is
making me hungry to play with a new device :-)

Jim

On 2/9/06, Danish Ali <danish@...> wrote:
>
>  You are right, the LPC2148 CANNOT act as a host - you cannot
> plug a pen drive into it.
>
> But that's not the question that was asked. ;-)
>
> What was asked was can the LPC2148 connect to a PC over USB
> so the PC would be the host.
>
> Sorry if that's something I didn't make clear. I tried to extend
> my answer into one of the questions that wasn't asked.
>
> Regards,
> Danish
> --- In lpc2000@yahoogroups.com, Xtian Xultz <xultz@...> wrote:
> >
> > It is possible to attach an USB device (like a pen drive) to the
> LPC2148 to
> > manage their memory?
> > AFAIK, the USB on LPC2148 must be a host, and the USB on a pen drive is
> > client, the LPC can act as a host? If not, it is too difficult to
> implement
> > it?
> >
> > Em Qui 09 Fev 2006 10:14, Danish Ali escreveu:
> > > At the risk of sounding unhelpful, yes that's what it's there for.
> > >
> > > But you have to write the software to run on the lpc2148 to make
> > > it behave like one of the standard USB items. (There's an example
> > > for it to pretend to be a USB mouse, and another as an external
> > > drive).
> > >
> > > If you don't want it to be a standard USB device, you have to
> > > write lpc software to do what you want AND write the USB drivers
> > > for the Windows end.
> > >
> > > What is not supported (I don't think it can be) is to use the
> > > built-in USB port for downloading code and then debugging, so
> > > you'll still need a JTAG interface.
> > >
> > > Wigglers are very cheap.
> > >
> > > Regards,
> > > Danish
> >
>


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