Use the IR of DM42(or any HP calculator) for commercial IR?

General discussion about calculators, SwissMicros or otherwise
Nazar
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Use the IR of DM42(or any HP calculator) for commercial IR?

Post by Nazar »

Hi guys, these days IR printers are used seldomly so for me, the IR printing feature is not really useful. I wanted to know the pattern of the IR code sent by the calculator so I could try to replicate the code sent by i.e an AC remote and if it can even be used for this purpose or they use a different protocol altogether. If the latter is the case then I will try to modify the Free42/DMCP code to work with the commercial IR protocol. Help and tips would be greatly appreciated.
HP-28s, HP-28C, HP-35s, DM-42, Casio fx-570EX
grsbanks
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by grsbanks »

The DM42 transmits Red Eye protocol.

You won't be able to alter that behaviour because it's in the proprietary operating system DMCP, not in Free42.
There are only 10 kinds of people in the world: those who understand binary and those who do not.
Nazar
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Location: Lahore, Pakistan

Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by Nazar »

Ah, I see. I guess I will have to build my own version of DMCP from Free42 and work on that to use IR.*sigh*
HP-28s, HP-28C, HP-35s, DM-42, Casio fx-570EX
grsbanks
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by grsbanks »

Replicating 3 years of work and creating a new operating system just to get the DM42 to behave as a remote control seems like a lot of effort to me!
There are only 10 kinds of people in the world: those who understand binary and those who do not.
Nazar
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by Nazar »

It would be a lot of work indeed but I wouldn't go to the full length of replicating that much work and just add this feature on a small usable OS(four function calc) and when I want the full functionality I can just flash in the DMCP OS in.
HP-28s, HP-28C, HP-35s, DM-42, Casio fx-570EX
EM41
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by EM41 »

You could use the DM41X and make your own printer rom instead of the included one with different IR commands.
I guess that would do what you want. For the DM42 I don't know a solution.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
Nazar
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by Nazar »

Why would I not be able to create this ROM for the DM42?
HP-28s, HP-28C, HP-35s, DM-42, Casio fx-570EX
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RAPo
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by RAPo »

EM41 wrote:
Sun May 10, 2020 2:16 pm
You could use the DM41X and make your own printer rom instead of the included one with different IR commands.
I guess that would do what you want. For the DM42 I don't know a solution.
How do I use the 41X to create a rom?
DM41X beta: SN00018.
DM41X: SN00496.
DM42 beta: SN00074.
DM42:SN06020.
DM10L: SN056/100.
DM11L: SN 02058.
DM15L: SN2074.
DM16L: SN2156.
DM15, DM16, DM41
and a whole bunch of the original HP's,
EM41
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by EM41 »

The DM42 has no roms you can plug in.
The Dm41X has pluggable roms in software like the original Hp41 has them in hardware, some are included and others make these roms themselves,
I don't know how to do that but it may be a solution if it is possible to make a rom to drive IR, you have to do it outside the DM41X.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
gmac42
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Re: Use the IR of DM42(or any HP calculator) for commercial IR?

Post by gmac42 »

But: grsbanks said the IR protocol is implemented in the DMCP OS, which is used by the DM42 as well as the DM41X.
So I don't see how a DM41X ROM would help here.
DM42 #650, DM41L #801, HP 41CX, HP 41CV, HP 50G, TI 89
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