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Re: ? DM42 as Alarm Clock ?

Posted: Fri Sep 13, 2019 12:34 pm
by rprosperi
akaTB wrote:
Fri Sep 13, 2019 9:51 am
Geoff Quickfall wrote:
Fri Sep 13, 2019 6:18 am
The alarm function not the HP41 was really for HPIL control. Set flag 11, turn off calc and when alarm wakes calc up, execute resident program.

Mine woke up, turned off some lab equipment and turned some on back in the early 80s via HPIL.

42s was not a controller; no HPIL, so no need to implement time functions (reduced budget interfered with the HP42 S design) also.

Alarm made a comeback in the stretch pioneers of course.

Yes, I would like to see alarm functions implemented.

Cheers, Geoff
But they were present in 27S and 17B, I think.
Yep, and also the 18C/19B/19BII, but that could be what Geoff called the stretch (not sure if he meant the Charlemagne or Champion series, they both sorta stretch in different ways). But NOT in the 28C and 28S, somewhat oddly...

Re: ? DM42 as Alarm Clock ?

Posted: Fri Sep 13, 2019 12:50 pm
by Dani R.
Thomas Okken wrote:
Fri Sep 13, 2019 12:01 pm
...

The DM42 doesn't have these limitations, and there is no reason why the full set of HP-82182A or HP-41CX alarm and clock functionality couldn't be implemented there, but if that is going to happen, it will have to be done by SwissMicros themselves, or by a contributor working specifically to target the DM42 platform.

...
I see it the same way. David would have to build in the basics so that ALMCAT and XYZALM can be supported. Who then should make the GUI and the integration in Free42-DM42 is not clear to me either.

Especially on the DM42 the function would make sense, on all other platforms I don't miss it at all. There I have e.g. V41. Besides, I also have the DM-41...

Re: ? DM42 as Alarm Clock ?

Posted: Fri Sep 13, 2019 12:57 pm
by akaTB
rprosperi wrote:
Fri Sep 13, 2019 12:34 pm
akaTB wrote:
Fri Sep 13, 2019 9:51 am

But they were present in 27S and 17B, I think.
Yep, and also the 18C/19B/19BII, but that could be what Geoff called the stretch (not sure if he meant the Charlemagne or Champion series, they both sorta stretch in different ways). But NOT in the 28C and 28S, somewhat oddly...
Stretched Pioneers are Charlemagne series. And I limited my comment to the 42s' siblings... ;)

Re: ? DM42 as Alarm Clock ?

Posted: Fri Sep 13, 2019 1:12 pm
by Boub65
1) Alarms can wake up the calc.
2) The calc (once waken up) can check if an alarm is due and then launch the adhoc subroutine, and if an alarm is not due set watchdog for the next alarm
3) go to 1) if cacl is put off before watchdog did trigger

No?

Re: ? DM42 as Alarm Clock ?

Posted: Fri Sep 13, 2019 6:35 pm
by Geoff Quickfall
Stretch Pioneers are the 48s and g series. They look like a stretched pioneer. The 18C and etc were clamshells but all were the RPL family including the 48.

Cheers.

Back to the alarm even if it is not xyzalarm. There is a single RTC as Thomas mentions so this would seem to be a software problem not a hardware problem as with the apps which reside on boards with many timed interrupts for many apps.

Geoff

Remember, these guys are also supporting all the other Swiss micro products, not just the 42!

I am torn at work between the DM42s, the Panamatik LP29C, Monty’s 41CL, and etc!

Which to take to the flight deck? No body dares touch them as there is no equals key!

Geoff