forum.heinrichsweikamp.com

heinrichsweikamp Wrote:
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> I think most of us fully understood your request.

Shame only 2-3 of them posted in this thread though

heinrichsweikamp Wrote:
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> Even that I was at the surface again at about
> 34:45, (for me) the dive ended at ~40min. And
> after that the surface interval starts.
I don't totally follow what you're saying here.
Diving Log correctly gives the ...

heinrichsweikamp Wrote:
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> cheeseandjamsandwich Wrote:
> > At the moment, the Surface Interval is wrong by
> 4
> > minutes.
> > And implementing the fix will mean the surface
> > Interval is wrong by 0 minutes.
> >
> > Why fix any bug?
>
> Ok ...

How about we think about this the other way around.


Imagine that the OSTC had been programmed to start the Surface Interval timer when it had assumed you'd surfaced, when the depth threshold was reached, when it then started timing the dive mode time-out... And how most, if not all other DCs work ...

heinrichsweikamp Wrote:
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> cheeseandjamsandwich Wrote:
> > But a Surface Interval is clearly defined and
> > independent of any dive computer/mode/deco
> > model/etc. It's just a function of the diver
> > being at the surface.
>
> I think there ...

Clownfish Wrote:
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> Based on Matthias's last post, the off-gassing
> calculations only start when the OSTC goes into SI
> mode. Therefore, the way it works is exactly
> correct, the SI as far as the computer is
> concerned for its calculations ...

heinrichsweikamp Wrote:
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> Is swimming/diving between 0 and 1m already part
> of the surface time or is is just the final part
> of the dive?

I'd expect that the definition of the SI assumes that you are ascending directly to the surface, which ...

Stephane Wrote:
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> I am very fine with the way SI is implemented. I
> would be very fine if it was implemented the way
> you want.
For a lot of divers, there's no reason at all to worry about the surface interval being 4 minutes out.
And i ...

scubatinoo Wrote:
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> cheeseandjamsandwich Wrote:
> --------------------------------------------------
> -----
> > Do you challenge
> > this definition? If yes, clearly state your
> > reasoning.
>
> Yes i do. Because if you carefully read your 2 ...

scubatinoo Wrote:
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> Laurie_the_Knot Wrote:
> --------------------------------------------------
> -----
> > ...why
> > can't this 'feature' be enabled/disabled by
> making
> > use of one of these spare CFs. That way we can
> > keep both camps ...

gorcio Wrote:
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> Stop it man, no chance (whether I agree with you
> or not (=not, in this case) ). It was the same
> with implementing Safety Stop which I advocated
> against, and when it was implemented, it was
> implemented with weird values ...

Here are some great tips on editing the custom text from another thread:
OSTC Forum - Custom text Line

For ages I've been after the Divers Alert Network (DAN) dog-tags that i seem to remember seeing somewhere... They had your DAN insurance number on it and could be clipped to your BCD/Harness.

But we have the custom text that displays on the surface screen of our OSTC :-)
Luckily the line just fits ...

Clownfish Wrote:
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> 1 It makes no difference to deco calculations
> and if you think you must stay out exactly 60
> minutes, it is in fact safer as you will be out 64
> minutes
We know it makes no difference, we've stated that clearly above ...

To scubatinoo, Bumlerd, Bardass, TnT, adrian-bluescuba, tiefunten, Clownfish & Stephane,

You guys appear to be objecting to the plea for the OSTC's 'Surface Interval' feature to be modified so that it reports the time a diver has been on the surface breathing air at surface pressure, instead of ...

Stephane Wrote:
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> Rich,
>
> As the code is open source, you are free to
> correct what you think is a bug. HW published all
> the informations needed to achieve such a task.
> If for any reason you are not able to do the
> change by yourself ...

Let's have a recap, to make it easy to follow.

Facts we know:
1) Surface Interval : This is the time a diver has been on the surface, breathing air/gas at surface pressure, after a dive.
2) OSTC's Surface Interval: This is the time since the Dive Mode timed-out (CF02), which by default is 240 ...

Firstly, I think it's polite and normal forum etiquette that if you wish to contribute to a conversation thread, you first read the whole thread, as the discussion will explain the problems, situations, ideas, and determine acknowledged facts along the way.
It seems that some people haven't read the ...

scubatinoo Wrote:
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> cheeseandjamsandwich Wrote:
> --------------------------------------------------
> -----
> > But it is a bug.
>
> Nope, it's not.
>
> As Sailor wrote:
> "just set CF02 to 30s and you fixed the issue by
> yourself ...

Bardass Wrote:
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> this is not a bug, this is a feature !
> The CF02 parameter serve to separate two dives in
> your logbook, it has not impact about the
> calculation of decompression.
>
> your computer calculates the decompression
> depending ...

sailor Wrote:
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> Hi Rich,
>
> just set CF02 to 30s and you fixed the issue by
> yourself.
> Half a minute should not bother, isn't it?
> Dont't let the try and error with 0s bother you.
>
> I believe the reason for this "feature" are the ...

Just to Clarify it all(?!)

From the U.S Navy Diving Manual rev. 6
[pre]
Surface Interval. In the context of repetitive diving, the surface interval is the
time a diver spends on the surface between dives. It begins as soon as the diver
surfaces and ends as soon as he starts his next descent.
[/pre ...

TnT Wrote:
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> If this was a real bug, then I'm sure HW would fix
> it in no time. But in this case it's not a bug,
> and they explained you why. If you are not
> convinced, that's your problem and you are always
> free to build a custom firmware ...

scubatinoo Wrote:
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> cheeseandjamsandwich Wrote:
> --------------------------------------------------
> -----
> > The
> > definition of Surface Interval is fixed, not
> > negotiable, it's the time the diver has been on
> > the surface ...

What does this thread tell us about the attitude to reporting of bugs? Should we not bother?
Do the users not want bugs fixed? Because it changes something perhaps, and they hate change...

We're not talking about the colour of the battery or whether the ostc should include functionality that ...