> Charlie,
>
> Sorry to hear about your problems with the TS-7300 based system.
thanks, its a good system and they're a great company, its just one of those
cut or continue choices.
> I'm using the TS-7300 with the TS-BAT3 and an industrial touch monitor
> with a serial output together with a custom quadrature input board and
> DeviceNet communications module.
>
> Of the whole system the TS-BAT3 has given me the most trouble - to the
> point where I might remove it from the design. All I wanted it to do
> was give my system a little time to shutdown safely in the event of
> power being removed while the system was running, but my confidence in
> the TS-BAT3 doing this long term (3-5 Years) is not high. I may end up
> using an external DC UPS which would be a shame.
Yes I did get the TSBAT3 working sort of, it'd gracefully shutdown, but the
charging software drops out now and
again as i said, so i made a looping script, so no big issue there. the problem
is that my system may have long
periods of offline, and its already being fed by a battery, so i'm better off
using a smart power controller that
just allows a grace period, sustains cranking voltage drops etc.. i don't need
the complexity of the extra
batteries, plus heat is a bit of a concern, as well as the usable battery life.
I don't know if my TSBAT3 just failed, but applying power to it, regardless of
the jumper settings the board would
not boot with it, but its just not the right option for me, so more thats the
issue than the device itself.
> I have a couple of TS-TPC-7390 touch panel systems arriving tomorrow,
> which I'm intending to use in place of the industrial monitor and
> TS-7300, but as they don't have a PC-104 slot I need to find a
> efficient way to handle power offs. I run from the fast boot
> environment, so some form of checksum on the saved files may be all
> that's needed if SD card corruption can be avoided, or I'll use the
> same DC UPS I use for some of my other control systems.
I'd be interested to hear how you get on with it, i need sunlight readable with
hi temps and touchscreen, from the
screenshots i saw i don't know how visible this unit would be in sunlight.
> With regard to CAN, I don't have much experience with low level CAN -
> I integrated an off-the-shelf DeviceNet interface module via RS232 for
> some low speed communications. If I go with the TS-TPC-7390 I'm going
> to replace the quadrature circuitry with a Luminary Micro LM3S8962
> based board communicating via Ethernet. Without knowing what your
> application does, would it be possible to offload the CAN to such a
> co-processor (The LM3S8962 has on-chip 10/100 Ethernet and CAN) and
> then communicate to it over Ethernet using UDP?
the TSCAN-1 add on board works, its just extra stuff, i can add the CAN as an
extra unit, i already have a CAN to
USB solution that uses the FTDI chip so its easy to get it going in linux too,
but i'm trying to get everything as
intergrated as possible, CAN is usually the hardest to get, even though its a
relatively simply system and has lots
of support, i guess there isn't a lot of call for it, but since I'm doing
automotive work its pretty defacto now,
i've found a lot of AIO/SBC solutions that just lack one thing, either video,
or CAN. But its allowed me to find
some great boards in the meantime for other projects.
At the moment i'm looking at a $200 mini pc running off the AMD Geode 800Mhz
its smaller, faster as hardware
assisted video and has more ports and OS options, takes 2-5W run, and has ACPI
for the power control, i can replace
the case with something more industrial if i need too, we'll see how that one
plays out, in the meantime i've put my
TS back on the bench and willl keep on keeping on with it, see if i can get 2.6
running on it as first step, this
will help alleviate a lot of issues i think. I've ordered a couple of other
systems just to see how they play out
too, in the meantime i'll use the mini pc to keep development going.
cheers.
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