My wishlist for Neo1973 phase1.5

1. small LED under case (does not have to be visible after
putting cover) 
which will show does device works at all:

- first start == LED on
- uboot start == LED off

As my (top/bottom caseless) Neo dropped to floor from 80 cm
and now I do 
not know does it work but have discharged battery or does it
broke.

Device connected to Debug Board show reaction so it works.
Screen also 
works.

2. A bit longer cable to GPS antenna so it will come from
AUX button side. 
Now it block access to Debug Port.

3. Working GSM modem ;D Look at bug #256

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Marcin Juszkiewicz wrote:
> 1. small LED under case (does not have to be visible
after putting cover) 
> which will show does device works at all:
> 
> - first start == LED on
> - uboot start == LED off

Alternatively, the existing LEDs. (backlight).

On Tuesday 13 March 2007 11:22, Marcin Juszkiewicz wrote:
> 1. small LED under case (does not have to be visible
after putting cover)
> which will show does device works at all:
>
> - first start == LED on
> - uboot start == LED off

After experiencing and reading about the problems with
charging 
(http://bugzilla.openmoko.org/cgi-bin/bugzilla/s
how_bug.cgi?id=212)  I am 
beginning to wonder if it would be a good idea to add a
charging LED at some 
point. Most phones show some kind of indication when
charging, and a small 
LED would mean you don't have the device in a running state
for it to show 
the charging status and it only draws a small amount of
current. I'm not 
convinced that using the backlight as an indication is the
right thing to do 
in this case.

Obviously I realise "just adding a charging LED"
is not an easy task at this 
point but I think it's worth considering for the future.

Cheers,
Paul

On Mon, 12 Mar 2007 23:12, Paul Eggleton wrote:
> After experiencing and reading about the problems with
charging
> (http://bugzilla.openmoko.org/cgi-bin/bugzilla/s
how_bug.cgi?id=212)  I 
> am
> beginning to wonder if it would be a good idea to add a
charging LED at 
> some
> point. Most phones show some kind of indication when
charging, and a 
> small
> LED would mean you don't have the device in a running
state for it to 
> show
> the charging status and it only draws a small amount of
current. I'm 
> not
> convinced that using the backlight as an indication is
the right thing 
> to do
> in this case.
>
> Obviously I realise "just adding a charging
LED" is not an easy task at 
> this
> point but I think it's worth considering for the
future.
>
> Cheers,
> Paul

Something that might be easier would be a led in series with
one of the 
power terminals on the charger plug.  It will only light
when power is 
flowing so you know that you have it connected correctly. 
Plus, this 
can be added even in the current generation as it does not
require a mod 
to the phone at all.
--Tim

Paul Eggleton wrote:
> After experiencing and reading about the problems with
charging 
> (http://bugzilla.openmoko.org/cgi-bin/bugzilla/s
how_bug.cgi?id=212)  I am 
> beginning to wonder if it would be a good idea to add a
charging LED at some 
> point.

Once we get 500 mA, it should be safe to switch on LCM and
backlight
and display something nice, before going into standby.
Similar for
"charge complete".

This lacks a the simple elegance of a LED, but it could be
done without
spilling too much blood 

(Disclaimer: I haven't actually measured how much excess
current we
have. So there may still be obstacles.)

- Werner

-- 
 
____________________________________________________________
_____________
 / Werner Almesberger, Buenos Aires, Argentina    
werneralmesberger.net /
/_http://www.almesberger.net/_____________
_______________________________/

Dnia wtorek, 13 marca 2007, Werner Almesberger napisał:
> Paul Eggleton wrote:

> > After experiencing and reading about the problems
with charging
> > (http://bugzilla.openmoko.org/cgi-bin/bugzilla/s
how_bug.cgi?id=212) 
> > I am beginning to wonder if it would be a good
idea to add a charging
> > LED at some point.
>
> Once we get 500 mA, it should be safe to switch on LCM
and backlight
> and display something nice, before going into standby.
Similar for
> "charge complete".

I left my neo for 9h connected to USB wall charger (similar
to the one in 
package but this has europlug). It still does not want to
boot.

I'm more and more thinking about buying Nokia DT-14
(external charger for 
BL-5C) to be able to charge batteries for Neo1973.

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Dnia wtorek, 13 marca 2007, Marcin Juszkiewicz napisał:

> I left my neo for 9h connected to USB wall charger
(similar to the one
> in package but this has europlug). It still does not
want to boot.

Nokia 770 boots without problem with this battery, show
lowest possible 
level but works. It also refuse to charge it.

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with is 42?!

Marcin Juszkiewicz wrote:
> Nokia 770 boots without problem with this battery,

The Neo needs at least 2.7V for the power supplies to work.

Seems that Nokia gets away with a little less.

> show lowest possible level but works.

Good, at least it doesn't show "almost full". That
would be
embarrassing 

> It also refuse to charge it.

Perhaps it doesn't like our temperature sensor (the middle
contact).

My crystal ball tells me that you have a debug board. So you
could
try the reset approach: connect debug board, insert battery,
connect
charger, then put something heavy but non-metallic on the
reset
button on the debug board. That will keep your Neo in reset,
and
should allow your phone to recharge (slowly).

After that, you could try my early power-down hack, see:
http://bugzilla.openmoko.org/cgi-bin/bugzilla/s
how_bug.cgi?id=212

- Werner

-- 
 
____________________________________________________________
_____________
 / Werner Almesberger, Buenos Aires, Argentina    
werneralmesberger.net /
/_http://www.almesberger.net/_____________
_______________________________/

Dnia wtorek, 13 marca 2007, Werner Almesberger napisał:
> Marcin Juszkiewicz wrote:
> > Nokia 770 boots without problem with this
battery,
>
> The Neo needs at least 2.7V for the power supplies to
work.
> Seems that Nokia gets away with a little less.

According to my multimeter battery has 3.38V. But I cannot
be sure that 
this 10 years old device still works reliable.

> My crystal ball tells me that you have a debug board.
So you could
> try the reset approach: connect debug board, insert
battery, connect
> charger, then put something heavy but non-metallic on
the reset
> button on the debug board. That will keep your Neo in
reset, and
> should allow your phone to recharge (slowly).

Nokia770 with digital camera on it is on reset now.

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Hello.

On Tue, 2007-03-13 at 13:52, Marcin Juszkiewicz wrote:
> Dnia wtorek, 13 marca 2007, Werner Almesberger
napisa?:
> 
> > My crystal ball tells me that you have a debug
board. So you could
> > try the reset approach: connect debug board,
insert battery, connect
> > charger, then put something heavy but non-metallic
on the reset
> > button on the debug board. That will keep your Neo
in reset, and
> > should allow your phone to recharge (slowly).
> 
> Nokia770 with digital camera on it is on reset now.

And now somebody should stand up and say that to much
gadgets are
useless. ;)

SCNR

regards
Stefan Schmidt