Re: Help, Fried 1-wire output

Hi Will,

According to the schematic you will be able to read the internal MAC address
because it's on a different 1-wire bus (1w-local), so I guess you also need
to make sure you're looking at the correct bus in ListOW.tini ??

You really need to connect something before the DS9502 (U9) to see if the
DS2480B is still alive, you could probably use the spare pads for the DS2408
for this, you may also need to remove the DS9502 just incase it's gone
short.

Hope this helps

Regards

Simon
http://www.simat.org.uk



----- Original Message ----- 
From: "Will Pickering" <[email protected]>
To: <[email protected]>
Sent: Monday, February 09, 2004 4:56 AM
Subject: [TINI]Help, Fried 1-wire output


> Hi,
>
> In my haste to play with the 400 socket board I turned the power on with
>
> a bare temp-sensor laying under the socket board near the 5v power in.
>
> Sensor is verified ok via my USB 1-wire.  Tini 400 boots and runs ok.
> ListOW.tini still reports the 1-wire MAC address button, but doesn't
> find my external temp sensor anymore.
>
> What is the best way to trace this back to see what I fried?  Hopefully
> it is just U9 protection diode or U8 the 1-wire driver.
>
> Is there a schematic for teh 400 socket board? I see the one listed for
> the 390 on the ibutton page, but couldn't find one for the 400.
>
> Thanks in advance,
> Will
>
>
>
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