[DOCUMENTATION] SLOW, FAST, 24MHz and 80MHz

Discussion about the new DM41X calculator
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Boub65
Posts: 176
Joined: Tue Sep 12, 2017 4:34 pm
Location: Rabat, Morocco

[DOCUMENTATION] SLOW, FAST, 24MHz and 80MHz

Post by Boub65 »

Hi all,
There is no mention in the DM41X documentation that SLOW mode is independent from CPU Speed (same speed at 24MHz on batteries and 80MHz on USB)...
... whereas FAST is 3x faster on USB than on batteries.

May be it could be added in the 3.9.3 section of the documentation.
Sincèrement, Sincerely, 73,
Boubker

2xDM15L, DM41L, DM42 SN#00855 (+one lost during shipping), DM41X #00707
TI-89 titanium, CASIO fx-cg50 (to play with micropython)

There are three kinds of people in the world: those who know math and those who don't.
Peet
Posts: 179
Joined: Tue Sep 29, 2020 12:01 am
Location: Germany

Re: [DOCUMENTATION] SLOW, FAST, 24MHz and 80MHz

Post by Peet »

Boub65 wrote:
Tue Aug 10, 2021 12:08 am
There is no mention in the DM41X documentation that SLOW mode is independent from CPU Speed...
It is explained indirectly, SLOW is described in the manual as follows: "SLOW corresponds to original 41C speed" - this excludes different slow speeds.
My programmable calculators - former: CBM PR100, HP41CV, HP28S, HP11C - current: HP48G(256kB), HP35S, Prime, DM41X, DM42
Boub65
Posts: 176
Joined: Tue Sep 12, 2017 4:34 pm
Location: Rabat, Morocco

Re: [DOCUMENTATION] SLOW, FAST, 24MHz and 80MHz

Post by Boub65 »

I know Peet...
But the chapter about CPU speed is different from the chapter on SLOW/FAST and there is no cross reference. So there could be some doubts...

So something like :
"SLOW corresponds to original 41C speed and is independent from CPU speed, FAST is roughly 50 times faster @24MHz CPU speed (and about 150 times faster @80MHz CPU speed). Cf. Chapter 2.2 about CPU Speeds"

would be more explicit/precise for newbies.

BTW... Sorry, english is my third langage... so I am sure that a much better wording exists out there to explain that SLOW is independent from CPU speed and that FAST is not...
Sincèrement, Sincerely, 73,
Boubker

2xDM15L, DM41L, DM42 SN#00855 (+one lost during shipping), DM41X #00707
TI-89 titanium, CASIO fx-cg50 (to play with micropython)

There are three kinds of people in the world: those who know math and those who don't.
Panchdara
Posts: 25
Joined: Sat May 15, 2021 9:02 am

Re: [DOCUMENTATION] SLOW, FAST, 24MHz and 80MHz

Post by Panchdara »

The attached is the way I see it... please correct me if I'm wrong.

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Attachments
DM41Speeds1.jpg
DM41Speeds1.jpg (78.44 KiB) Viewed 420 times
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