check the wire, normaly it's a short circuit check about ground-data and
vdd-data shorts, check about high voltages near circuits and cables too
if you use two power supplys, one for 5v of ds sensors, and one for bus
master, check if between the two power supply have 0volts (same ground)
2013/3/27 Jim Duda <[email protected]>
> On 03/27/2013 08:59 PM, Roberto Spadim wrote:
> > short circuit can be a voltage over 5volts too, some time ago i get
> about 7volts in digital data wire, and the ds18b20 was reporting short
> circuit, maybe your wire have interference like happened with me, or it's
> really short circuited (data and ground wires)
> >
>
> This error is attempting to read a device (2409) on the main tree.
> Does this mean the short is on the main line (adapter to hub or hub to
> DS2408 devices)?
> Can a short on a hub main/aux branch corrupt the main trunk to/through the
> hub?
>
> Mar 27 21:18:43 linux OWFS[16056]: CALL: data.c:(104) DataHandler:
> parse path=/29.921206000000/PIO.7
> Mar 27 21:18:43 linux OWFS[16056]: CALL: ow_parsename.c:(98)
> path=[/29.921206000000/PIO.7]
> Mar 27 21:18:43 linux OWFS[16056]: CONNECT: ow_reset.c:(36) 1-wire bus
> short circuit.
> Mar 27 21:18:44 linux OWFS[16056]: CALL: data.c:(104) DataHandler:
> parse path=/
> Mar 27 21:18:44 linux OWFS[16056]: CALL: ow_parsename.c:(98) path=[/]
> Mar 27 21:18:44 linux OWFS[16056]: CALL: data.c:(164) Directory message
> (all at once)
> Mar 27 21:18:44 linux OWFS[16056]: CALL: ow_dir.c:(100) path=/
> Mar 27 21:18:44 linux OWFS[16056]: CONNECT: ow_reset.c:(36) 1-wire bus
> short circuit.
> Mar 27 21:18:44 linux OWFS[16056]: CONNECT: ow_reset.c:(36) 1-wire bus
> short circuit.
>
> Thanks,
>
> Jim
>
>
>
>
>
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--
Roberto Spadim
SPAEmpresarial
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