Re: iButton on TINI

Bryan Armstrong <bryan.armstrong-6tN4nzCoH/[email protected]> Tue, 22 Jun 2004 09:01:16 -0500
Newsgroups gmane.comp.hardware.microcontrollers.tini
Message-ID <[email protected]>
Walter Schilling wrote:
> I just inserted a 1920-F5 iButton in the clip at J15 on my DSTINIs400 and
> applied power.  Now, the DSTINIm400-144 is not responding to ping and not
> responding to telnet, over the Ethernet connection.  If I remove the
> iButton, the problem goes away and ping and telnet work.

Walter,

The iButton must be inserted so that the flange is up (away from the 
board).  If it is inserted backwards, it will short the 1-Wire bus 
across the internal diode and make all devices unreadable.  If the 
DS2502 is unreadable, no Ethernet MAC ID will be found and no networking 
will be possible.

-- 
--
Bryan Armstrong
bryan.armstrong-6tN4nzCoH/[email protected]

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