I think I am getting somewhere at last!!! I tried running with a single temperature sensor - 1000 cycles fine Tried with 5 temperature sensors - fine 5 temp + 8channel I/O - fine Kept adding devices and it failed when I added a box with 2 X 2 port I/O, a few no reads on that device but many no-reads on temperature sensors. I have now removed that and added a box with a single 2 channel I/O. The 2 channel boxes are home brew based upon DS2406 chips.
I am now assuming that there is a problem with my 2 X 2channel box Current test - 5 - temperature 3 - 8 channel I/O Hobbyboards 1 - 2 channel I/O DS2406 based 1 - Humidity sensor 200 cycles so far and no no-reads, so looking good. It is way past my bedtime now so I will leave it running overnight. Cheers Mick On 02/02/13 22:14, Guy COLIN wrote: > Mick Sulley<mick<at> sulley.info> writes: > >> Hi Guy, >> I am testing owfs on a Pi as well. I have 6 temperature sensors and 3 8 >> channel I/O boards and I continually read all of them, takes about 9 >> seconds to get around them all. All of the files in /statistics/errors >> are zero, indicating no errors, however the code I am running logs each >> time it tries to read and it is not able to, and I am seeing a >> considerable number of no reads. Investigations on going but it does >> seem that there is a much higher incidence of no reads with temperature >> sensors than with I/O. >> >> I started the tests using a Sheepwalk Electronics RPI2 adapter, which is >> specifically designed for the Pi, and I suspected that this may be the >> problem and so switched to a DS9490 USB adapter, but the no reads continue. >> >> Do you know if you are experiencing no reads? >> >> Cheers >> Mick >> >> On 01/02/13 15:33, Guy COLIN wrote: >>> Just to give information about owfs running on Raspberry pi, with latest >>> Raspbian and owfs from the repository of the distribution. >>> Everything is just perfect: >>> For testing purpose, I ran it for 2 weeks continuously on a USB DS9490B >>> adaptor and 1 temperature sensor DS1820B polling readings every 5 minutes >>> without any errors, everything perfectly stable (some reports were done here >>> about instability on USB) >>> I have now my home automation system running on the Raspberry pi onboard >>> serial port ttyAMA0 to a 1wire 6 ports hub (5 Temp; 1 Humid; >>> 1LCD+3push buttons; 1 8xI/O board to drive the central heating boiler) >>> from January 5 without any errors. I poll data every 5 minutes, I have no >>> error in my own logs (no measure out of range), and no errors in >>> /mnt/1wire/statistics/errors. >>> Everything is fine and perfect. >>> My site is visible here http://gcolin.hd.free.fr/ >>> Thanks again to owfs development team >>> -- >>> Guy >>> >> ------------------------------------------------------------------------------ >> Everyone hates slow websites. So do we. >> Make your web apps faster with AppDynamics >> Download AppDynamics Lite for free today: >> http://p.sf.net/sfu/appdyn_d2d_jan >> > > Hi Mick, > > No I'm not experiencing any no read. > I read all my devices every 5 minutes, and log any inconsistent value. The no > read will be recorded and reported in my graphics trends with a grey color. It > happen sometimes when I disconnect the 1wire network. I am now running a home > made rs232 adaptor based on MAX3232CPE similar to > thishttp://codeandlife.com/2012/07/01/raspberry-pi-serial-console-with- > max3232cpe/ > This adaptor is connected to a 1wire hobbyboard 6 chanel hub > Before the Raspberry I had an old PC Pentium1 233MHz and 2 home made serial > port/1wire adaptors and fom times to times I had inconsistent values recorded, > usualy 85 degres for the temp (which means short circuit on temp sensor I > believe) and I logged these values in my own logs. I used to have 3 or 4 days > without errors then several a day, let's say an average of 2 a day. But now > with > the Raspberry and this config: Zero error since January 5. > > Your config is different since you use a I2C to 1wire, but you stil have no > reads with a usb adaptor... I don't know > May be your software. > I have run on usb adaptor with 1 temp sensor for 2 weeks without errors. > Are you running the latest Raspbian with owfs from the Raspbian repository? > > Good day > -- > Guy > > > > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_jan > _______________________________________________ > Owfs-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_jan _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
