[time-nuts] KS-24361 Lady Heather problem

Adrian Godwin artgodwin at gmail.com
Mon Jun 18 11:26:05 EDT 2018


I've been running Lady Heather against a KS24361 again for a few days, and
found it working reasonably well. It's the X11 version, running on Debian 9
with the xfce window manager.

it hasn't locked up, but I generally have it on an alternative screen
(Workspace in xfce terms - not another monitor) and occasionally it will
bleep for no obvious reason. Quite often (notably, but not only, after a
bleep), swapping to that screen will show it has having received some
command so that it's displaying something other than the default - perhaps
a zoomed in display of some sort. Not always the same thing. ESCAPE reverts
to the normal display.

I feel as though it's getting some unexpected window manager events and
handling them in unintended ways.

I also just tried a second RS422 cable to the (fake) ref-1 unit, running
two copies of lady heather each with their own config file : one uses
/dev/ttyUSB0 and the other /dev/ttyUSB1. This is fairly broken, though I'm
convinced i've done it OK in the past. The first copy blanks its display
while the second appears to take it over, yet using the other (as expected)
serial port.

I say take it over because instead of updating a few times and then
settling down to a slowly changing display, the second window seems to
quickly show the whole content while the first goes dark. As though there's
some confusion over which instance owns which window.

All this makes me think there's a bug in the window event handling
somewhere and in your case perhaps it receives something that makes it
freeze.

Mark, is there a way to get LH to log its UI events so I can track what
it's trying to process ?


On Sat, Jun 16, 2018 at 4:58 PM, ew via time-nuts <time-nuts at lists.febo.com>
wrote:

> Thank you, will see what we can do
>
> In a message dated 6/16/2018 10:41:26 AM Eastern Standard Time,
> artgodwin at gmail.com writes:
>
>
>  I was running two for a while, then needed the FTDI converters for
> something else. I've just reinstated one with a CH340 converter, will see
> if it has any problems.
> I'm currently connected to a ref-0, which is itself connected to another
> ref-0 modified so it functions as a ref-1.
>
> I've used various RS422 converters : abusing RS232 is probably the worst
> option. There are alleged RS232 converters available on ebay which turn out
> to be TTL and are therefore closer to the right voltage specs than the
> product they clone badly :). However, you probably need to bias the RS422
> levels of the KS24361 to make them reliable.
>
> I've recently found these converters :
>
> https://www.ebay.co.uk/itm//253141528330 (other sellers also have them).
>
> I haven't opened the case to find out what drivers are used (the USB chip
> is CH340), but they're extremely cheap and nicely packaged with leds for
> RX/TX and apparently proper RS422 levels. You can chop the mini-din
> connector off, fit a DE-9 and you've got a perfect KS2461 connection. The
> wires are long, flexible and, IMHO, a nice colour :)
>
> Connections for a male DE-9 plug to fit the KS24361 J8 are :
>
> 3 shield
> 4 brown
> 5 orange
> 8 black
> 9 red
>
>
> Many converters are sold with DE-9 connectors but there seems to be no
> sensible connection standard so you end up making a conversion lead anyway.
> The smallest, neatest possible converter is FTDI's USB-RS422-WE-1800-BT
> which has the circuitry in the USB plug and wire ends for you to fit a
> DE-9. But they're $36 or so....
>
>
> On Sat, Jun 16, 2018 at 2:24 PM, Clint Jay <cjaysharp at gmail.com> wrote:
>
> > I’ve experienced similar random freezing which turned out to be the
> > Prolific PL2303 USB to serial adapter, changing to a CH340 device fixed
> it.
> > Might be worth a look?
> >
> > On Sat, 16 Jun 2018 at 14:11, Mod Mix <modmix at t-online.de> wrote:
> >
> > > Am 16.06.2018 um 14:00 schrieb ew via time-nuts:
> > > > My partner in crime Juerg has problems running LadyHeather with the
> > > KS-24361. Does any one run it and can help us, may want to doit off
> > list.
> > > >
> > > >
> > > > Thank you Bert Kehren
> > > What kind of problem?
> > > Ulli
> > >
> > > I've some issues from time to time: LH just freezes - not investigated
> > > further, yet.
> > >
> > >
> > > _______________________________________________
> > > time-nuts mailing list -- time-nuts at lists.febo.com
> > > To unsubscribe, go to
> > > https://lists.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > > and follow the instructions there.
> >
> > --
> > Clint. M0UAW IO83
> >
> > *No trees were harmed in the sending of this mail. However, a large
> number
> > of electrons were greatly inconvenienced.*
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at lists.febo.com
> > To unsubscribe, go to https://lists.febo.com/cgi-
> > bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
> >
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to https://lists.febo.com/cgi-
> bin/mailman/listinfo/time-nuts
> and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to https://lists.febo.com/cgi-
> bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>



More information about the time-nuts mailing list