UPDATE: DMCP-3.22 / DM42-3.20
Re: UPDATE: DMCP-3.22 / DM42-3.20
If you want to downgrade (which is safe, if done properly) then be sure to use the combo DMCP+DM42 f/w images, most easily done with the dm_tool utility, which guarantees you are installing the proper matching DMCP and DM42 applications. Mixing apps and DMCP versions not intended to work together can lead to... well, unsatisfying circumstances.
--bob p
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
Re: UPDATE: DMCP-3.22 / DM42-3.20
@Didier & Bob.
Thanks so much to both of you!
edit:
I reverted to DMCP_flash_3.21_DM42-3.18.bin and checked the battery voltage display behavior,
reported at viewtopic.php?p=21537#p21537 by peet.
Result: same behavior, so it's definitly not caused by DMCP-3.22 / DM42-3.20.
Thanks for the help!
Thanks so much to both of you!
edit:
I reverted to DMCP_flash_3.21_DM42-3.18.bin and checked the battery voltage display behavior,
reported at viewtopic.php?p=21537#p21537 by peet.
Result: same behavior, so it's definitly not caused by DMCP-3.22 / DM42-3.20.
Thanks for the help!
[ HP48/49/50/42S/WP34/HP Prime/ DM42 (#00185+00318) ]
Re: UPDATE: DMCP-3.22 / DM42-3.20
I have observed the same behaviour.
However, it gives you an advantage: If you perform an operation on the DM42 that causes a heavy current drain on the battery and then reverts to a low current state of the calculator where the voltage indicator i visible, you can thereby get an impression of the state of your battery before the voltage indicator reverts to low current drain voltage.
Regards, Nissen
However, it gives you an advantage: If you perform an operation on the DM42 that causes a heavy current drain on the battery and then reverts to a low current state of the calculator where the voltage indicator i visible, you can thereby get an impression of the state of your battery before the voltage indicator reverts to low current drain voltage.
Regards, Nissen
Re: UPDATE: DMCP-3.22 / DM42-3.20
do you mean: "It's not a bug, ... it's a feature"?Nissen wrote: ↑Thu Sep 16, 2021 1:21 pmI have observed the same behaviour.
However, it gives you an advantage: If you perform an operation on the DM42 that causes a heavy current drain on the battery and then reverts to a low current state of the calculator where the voltage indicator i visible, you can thereby get an impression of the state of your battery before the voltage indicator reverts to low current drain voltage.
Regards, Nissen
[ HP48/49/50/42S/WP34/HP Prime/ DM42 (#00185+00318) ]
Re: UPDATE: DMCP-3.22 / DM42-3.20
I simply mean, that you can take advantage of this behaviour, whether it is a bug or not.
We better ask Michael for an explanation.
Regards, Nissen
We better ask Michael for an explanation.
Regards, Nissen
Re: UPDATE: DMCP-3.22 / DM42-3.20
Done (I have asked).
They could not find an error, and the mentioned downgrade to the previous release confirmed this.
Nevertheless, for me it remains a phenomenon that the voltage displayed
just rises again at the minute change, after each repeated call from 'Setup' & exit
dropped the (displayed) voltage by a small amount.
But we can end the guesswork, I suspect there will be no new findings.
Regards, Thomas
[ HP48/49/50/42S/WP34/HP Prime/ DM42 (#00185+00318) ]
Re: UPDATE: DMCP-3.22 / DM42-3.20
There is another possibility: That the bug/issue/phenomenon/problem is a design flaw in the ST Microelectronics microcontroller. If so, there is very little we can do.
Regards, Nissen
PS: According to SwissMicros, the DM41X uses the same microcontroller and hardware as the DM42.
Is the issue also present in the DM41X?
Regards, Nissen
PS: According to SwissMicros, the DM41X uses the same microcontroller and hardware as the DM42.
Is the issue also present in the DM41X?
Re: UPDATE: DMCP-3.22 / DM42-3.20
The 41x can not show the voltage. But it seems so. During the beep, the battery indicator on my 41x loses a bar, which then reappears.
My programmable calculators - former: CBM PR100, HP41CV, HP28S, HP11C - current: HP48G(256kB), HP35S, Prime, DM41X, DM42
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- Posts: 795
- Joined: Wed May 03, 2017 7:46 pm
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Re: UPDATE: DMCP-3.22 / DM42-3.20
The software could ignore readings that lasted for less than a fixed interval of time so transients like this wouldn't show up.
Tom L
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
Some people call me inept but I'm as ept as anybody!
DM10L SN: 059/100
DM41X SN: 00023 (Beta)
DM41X SN: 00506 (Shipping)
DM42 SN: 00025 (Beta)
DM42 SN: 00221 (Shipping)
WP43 SN: 00025 (Prototype)
Re: UPDATE: DMCP-3.22 / DM42-3.20
Hi,
is this a bug? I Am trying to save a program and in the UI screen of adding a filename I do not see letters on soft-menu buttons, just empty rectangles.
is this a bug? I Am trying to save a program and in the UI screen of adding a filename I do not see letters on soft-menu buttons, just empty rectangles.
Code: Select all
FW: DMCP v.3.22, DM42 v3.20