Flashing DM-41 firmware on DM-15

Forum for discussion of the DM10, DM11, DM12, DM15, DM16 and DM41 units
Boub65
Posts: 51
Joined: Tue Sep 12, 2017 2:34 pm
Location: Rabat, Morocco

Re: Flashing DM-41 firmware on DM-15

Post by Boub65 » Wed Jan 24, 2018 12:35 pm

May be there is a "business case" for SM to sell a blank DMxx (credit card format) xith all the DM10, DM11, DM15, DM16 and DM41overlay layout?
DM15L, DM41L
Waiting for my DM42

keithdalby
Posts: 399
Joined: Mon Apr 24, 2017 6:38 pm

Re: Flashing DM-41 firmware on DM-15

Post by keithdalby » Wed Jan 24, 2018 1:02 pm

Maybe. I printed it on A4 printer paper and cut it out with a guillotine before applying a liberal layer of Pritt Stick and plopping it on the keys. It won't survive the rain, but then I wouldn't want to risk the calculator in the rain anyway.

I was thinking about the blank overlay idea. The issue with the paper overlay is that is does [a/e]ffect the clicky feedback a little. How is the keyboard attached to the circuit board? Is it easy to remove? A truly blank overlay on a DMXX model would have the weakness that any additional overlay would negatively affect the haptic feedback. I don't know what the solution is though.

keithdalby
Posts: 399
Joined: Mon Apr 24, 2017 6:38 pm

Re: Flashing DM-41 firmware on DM-15

Post by keithdalby » Wed Jan 24, 2018 1:04 pm

On the DMXXL models, a card template with holes in could fit between the keys without [a/e]ffecting their action, but that doesn't really help with the DMXX issue.

Boub65
Posts: 51
Joined: Tue Sep 12, 2017 2:34 pm
Location: Rabat, Morocco

Re: Flashing DM-41 firmware on DM-15

Post by Boub65 » Wed Jan 24, 2018 3:25 pm

keithdalby wrote:
Wed Jan 24, 2018 1:04 pm
On the DMXXL models, a card template with holes in could fit between the keys without [a/e]ffecting their action, but that doesn't really help with the DMXX issue.
On the DMxxL models you have the problem of the keys where you would also need stickers à la WP34s...
Last edited by Boub65 on Wed Jan 24, 2018 6:06 pm, edited 1 time in total.
DM15L, DM41L
Waiting for my DM42

keithdalby
Posts: 399
Joined: Mon Apr 24, 2017 6:38 pm

Re: Flashing DM-41 firmware on DM-15

Post by keithdalby » Wed Jan 24, 2018 4:43 pm

Good point. A blank model would be good though, if with white keys and bezel that could be written on with solvent-based ink so the labels would be semi-permanent.

keithdalby
Posts: 399
Joined: Mon Apr 24, 2017 6:38 pm

Re: Flashing DM-41 firmware on DM-15

Post by keithdalby » Wed Jan 31, 2018 3:01 pm

For custom key assignments:
IMG_20180131_145622.jpg
IMG_20180131_145622.jpg (43.31 KiB) Viewed 131 times
Is it possible to assign keys to run programs that assign keys, so a menu can be made?

grsbanks
Posts: 555
Joined: Tue Apr 25, 2017 9:23 am
Location: Preston, Lancs, UK

Re: Flashing DM-41 firmware on DM-15

Post by grsbanks » Wed Jan 31, 2018 3:14 pm

Yes.

The "PASN" command that is part of the X-Function module included in the 41CX ROM does this. Search for a user manual for the HP-82180A X-Func module, it's widely available on line.
Not SwissMicros staff, just an enthusiast.

keithdalby
Posts: 399
Joined: Mon Apr 24, 2017 6:38 pm

Re: Flashing DM-41 firmware on DM-15

Post by keithdalby » Wed Jan 31, 2018 3:37 pm

grsbanks wrote:
Wed Jan 31, 2018 3:14 pm
The "PASN" command that is part of the X-Function module included in the 41CX ROM does this. Search for a user manual for the HP-82180A X-Func module, it's widely available on line.
Thank you grsbanks; found it.

https://www.thecalculatorstore.com/WebR ... Module.pdf

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