Re: [Owfs-developers] Problem with 1-Wire USB Adapter

2013-09-26 Thread Klaus Weglehner
Thank you for your reply! On Thu, 26 Sep 2013 01:33:59 +0200 Jan Kandziora wrote: > This is near worst-case. You could make it only worse by having some of > these bus-powered. There is no way to have this working reliable. Hm, the Star-rays are only 1-3m long. I thought this would be no proble

Re: [Owfs-developers] Problem with 1-Wire USB Adapter

2013-09-26 Thread Jan Kandziora
Am 26.09.2013 07:48, schrieb Colin Reese: > > This is a very interesting topic. I've used ds9490s forever in > various topologies wired individually with RJ and never had an issue > with finding devices, using maxim's drivers on windows and owfs on > Linux. > I do, even with a bus topology. When I

Re: [Owfs-developers] Problem with 1-Wire USB Adapter

2013-09-26 Thread Colin Reese
> On Sep 26, 2013, at 16:14, Jan Kandziora wrote: > > Am 26.09.2013 07:48, schrieb Colin Reese: >> >> This is a very interesting topic. I've used ds9490s forever in >> various topologies wired individually with RJ and never had an issue >> with finding devices, using maxim's drivers on windows

Re: [Owfs-developers] Problem with 1-Wire USB Adapter

2013-09-26 Thread Jan Kandziora
Am 26.09.2013 11:52, schrieb Klaus Weglehner: > > Anyway, i have tested another USB Host controller on the raspberry pi > with only one direct DS18S20 attached. It shows the same errors after a > few minutes while accessing the uncached entrys repeatedly fast. > Have you checked for the w1 kernel f

Re: [Owfs-developers] Problem with 1-Wire USB Adapter

2013-09-26 Thread Jan Kandziora
Am 27.09.2013 01:40, schrieb Colin Reese: > > How does one make use of this? > The simultaneous/single_ds2400? Simply by reading that node. But I gave it only as an example what I had to do to make the whole thing work for me. Batteries included wasn't good with the I²C hosts and my application.

[Owfs-developers] Simultaneous read of temperature sensors

2013-09-26 Thread Markus Gaugusch
Hi, I've got 16 ds18s20 and two DS28EA00 ony my 1wire network. Currently, I read them sequentially every 5 minutes and write the values into an RRD and a mysql database. Now my question: I've read about the "simultaneous" feature, but I don't know how it works. Does it only work with the ds18s2

[Owfs-developers] 1Wire Power Supply

2013-09-26 Thread Markus Gaugusch
This is not really an owfs question, but my be interesting nevertheless. My network consists of ~70m of CAT5 cable, mostly in "bus" topology, but also some branches (~5m). Bus power comes from an unused USB port. I use two wires of the cat5 for +5V, two for 0V and two for 1wire (sometimes only