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Re: AT91EB55


Am Montag, 20. September 2004 15:44 schrieb Nick Garnett:
> Andrew Lunn <andrew@lunn.ch> writes:
> > On Mon, Sep 20, 2004 at 03:08:54PM +0200, Sebastian Block wrote:
> > > Hi,
> > >
> > > can anyone explain me how to get the third uart working !?
> >
> > The generic AT91 serial driver only supports two uarts. If the third
> > uart is identical to the first two, it should be a simple cut and
> > paste operation to extend the driver to support it.
>
> However, the EB55 only has DB9 connectors for the first two ports. The
> third is probably available on the IO expansion connector. However,
> there are no tranceivers and the connector is not fitted to the board
> by default.
>
> So while the software can easily be extended as Andrew indicates,
> there are more serious hardware barriers.
I've a eval board that is very similar to the EB55 (only Flash differs and it 
has 3 uarts and a twin-can-controller on the spi)
I've wrote a test program for writing hello-world on every serial-port and it 
works.
But still redboot did not want to accept the third serial interface
Sebastian

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