Hi, I've now successfully used simultaneous command, but my bus has one iButton DS18S20 (which does not have separate power pin), while the other ones are 3-pin TO-92 with separate power supply. Now, I sometimes get read errors (85 degrees)
I don't want to change my scripts to read one sensor apart from the others. Or is there any other solution? While writing this, I thought I could just re-read from uncached in case of 85 ... would that work? thanks! Markus On Sep 29, Jan Kandziora <j...@gmx.de> wrote: > Am 27.09.2013 10:04, schrieb Mick Sulley: >> >> My network has a HobbyBoards 6 port hub and I have never got it to work >> through that, don't know why. >> > simultaneous/temperature and simultaneous/voltage use the "Skip ROM" > command which addresses all chips on a bus segment simultaenously. After > that, a command code "Convert T" or "Convert V" ist sent, which is > ignored by all chips on the bus besides the temperature sensors / > DS2450. That's how it's works. > > When you use a DS2409 driven hub, the important caveat is owfs is > disabling all main/aux branch branches before doing any transaction. So > if you use the /simultaneous directory, the command will only be sent to > the chips *before* the first DS2409. > > However, there is a way to use simultaneous with the hubs, too. There is > a main/simultaneous and an aux/simultaneous directory in any DS2409 > node. When you use that, the "Skip ROM" command is sent for that path only. > > Kind regards > > Jan > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > -- __________________ /"\ Markus Gaugusch \ / ASCII Ribbon Campaign markus(at)gaugusch.at X Against HTML Mail / \ ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
