My only guess is that after a normal F5 Channel access command or a 55 write
status, there was noise in the line that was interpreted as further switch
commands. Since the normal PIO switching is CRC16 protected, I'm a little
dubious.
Paul Alfille
On Fri, Mar 5, 2010 at 4:50 AM, Rob Conway <[email protected]> wrote:
> I have a number of DS2406's that are sequenced by a bash script. The
> script waits for a pushbutton input sensed from a DS2405 and then simply
> sequences the DS2406's. Turns one on for maybe 30 minutes then turns
> another on for another 30 minutes. Easy stuff and has been running for
> years.
>
> Today the three DS2406's turned on/off every 2-3 seconds, They simply just
> cycled on/off all day. My wife did try and call me however never got the
> message so 6 hours later I get home. I looked through owhttp and everything
> seemed fine, I could not see the PIO or Sense changing using the uncached
> display, checked for at least 1 minute with constant explorer refreshes. I
> tried to change the PIO state to force one of the DS2406 outputs on however
> the output was still cycling. I then disconnected the 1wire connection
> into the USB adapter and sure enough the cycling stopped. I plugged
> the 1wire cable back into the USB adapter and everything seemed fine. No
> DS2406's cycling and I could see everything back in owhttp. I then
> triggered the DS2405 (input pushbutton) that starts the sequencing script
> and sure enough it worked perfectly. Thus as my script started the output
> sequences as normal, it means my script had not been running previously and
> was still just waiting to sense my pushbutton input.
>
> The setup has been running for years. So OK whats changed in my setup...
>
>
> In the last 2 months I have replaced the USB adapter
> In the last 4 weeks I have added a hobby boards hub to a second USB
> adapter (the DS2405 or 06 are still connected to the original USB adapter
> and no 1wire network changes).
> In the last 10 days I have upgraded to owfs 2 .7p29
> I also have a BAE0910 connected to P1 of the hub however do not even poll
> any parameters at the moment.
> I have not changed any scripts on the server.
>
> Everything seems OK now (just by unplugging and plugging back in the 1wire
> connection to the USB), however just thought I would post this in case
> someone else experiences a similar behavior.
>
> rob
>
>
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