Hi Paul,
Thanks for the suggestions. Yes the Sheepwalk adapter is based on the
DS2482-800. I can't see anything obvious in the logs, but I have done
some more investigation and now suspect it may well be a voltage
problem, so I am looking at ways to try to stabilise it.
I see on the spec sheets for most devices it says max voltage is 5.5v,
from your experience is it possible to go above that and if so what is
the maximum?
Thanks
Mick
On 04/03/15 16:27, Paul Alfille wrote:
I assume we're talking about the DS2482-800 -- the 8 channel i2c-based
bus master.
The fact that a reboot doesn't fix the problem takes in issue out of
owfs (which should be entirely reset by a reboot) and to the hadware
(which might need a power cycle to fully reset).
The datasheet talks about a "Device Reset" command (0xF0) that
completely resets the device. We do that on startup, so clearly that's
not sufficient. There must be some enumeration that's done on power-up.
So, I'm at a loss. But how about obvious things -- anything in the
system logs? Possible power problems? Marginal bus design?
Paul
On Wed, Mar 4, 2015 at 9:31 AM, Mick Sulley <m...@sulley.info
<mailto:m...@sulley.info>> wrote:
I have had a problem probably 3 or 4 times over the last few months
where I loose some channels on my 1-wire, this time channels 1, 4
and 5,
which I think is the same channels as before but can't be sure. If I
reboot it doesn't help, just comes up with the same missing channels,
but power cycle and all is well again.
I am running version owfs 3.0 but the last time it happened was on 2.9
with owserver with owfs Running on Raspberry Pi with Sheepwalk RPi3
adapter and RPI3a splitters to give the 8 channels.
Any ideas?
Thanks
Mick
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