Author Topic: TI-Nspire Navigator stuff  (Read 7214 times)

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Offline critor

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TI-Nspire Navigator stuff
« on: September 17, 2011, 05:20:09 pm »
I'm going to post here some of my dicoveries with the TI-Nspire Navigator system.



Episode 1: the rechargeable battery

The TI-Npire Navigator crade is using a specific huge rechargeable battery (compared to TouchPad/CX/CM rechargeable batteries): 3.7V, 1750mAh, 6.475Wh.

Check the module and its rechargeable battery photos here:
http://tiplanet.org/forum/viewtopic.php?f=43&t=8214
« Last Edit: September 17, 2011, 05:25:06 pm by critor »
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Offline critor

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Re: TI-Nspire Navigator stuff
« Reply #1 on: September 18, 2011, 10:24:34 am »
Episode 2: the Navigator cradle on a CX calculator, does it work?

The old TI-Nspire Navigator cradle can be plugged on a TI-Nspire CX calculator:

http://tiplanet.org/images/nswifi9.jpg


Although a new CX specific module does exist, the old one does work:





So, why did TI release a new CX specific module? Check some possible reasons here:
http://tiplanet.org/forum/viewtopic.php?p=116312#p116312
« Last Edit: September 18, 2011, 10:25:32 am by critor »
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Offline Jim Bauwens

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Re: TI-Nspire Navigator stuff
« Reply #2 on: September 18, 2011, 10:41:45 am »
Interesting stuff :)
Now if you would just would open it and send me pictures of the circuit board :p

Offline critor

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Re: TI-Nspire Navigator stuff
« Reply #3 on: September 18, 2011, 10:46:46 am »
Interesting stuff :)
Now if you would just would open it and send me pictures of the circuit board :p

This time, I can see no reason why it would be a "Nspire calculator"-like PCB.
So I don't think there's anything interesting inside it, or anything to dump...
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Offline Jim Bauwens

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Re: TI-Nspire Navigator stuff
« Reply #4 on: September 18, 2011, 10:50:13 am »
I'm interested about the connections to the dock port. I think it will use standard usb, so this way we can find more about the pins :)

Offline bsl

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Re: TI-Nspire Navigator stuff
« Reply #5 on: September 18, 2011, 11:24:39 am »
Does the Login-To-Class Dialog Box only use the dock connector ?
Or does it also use the USB port ?

EDIT: There is an open TCP socket [ check the Semaphore list ] on the Nspire, probably only accessible through the dock port.
« Last Edit: September 18, 2011, 12:10:29 pm by bsl »

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Re: TI-Nspire Navigator stuff
« Reply #6 on: September 18, 2011, 12:25:18 pm »
There is a mini-USB A connector on the craddle.

I've connected it to the mini-USB A/B connector of another calculator, but could not transfer any file.


But it's quite strange: I don't get the error immediatly... I get it after several minutes, or after unpluging the cable.
I even managed to crash the calculator...

OS 3.0.2.
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Offline bsl

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Re: TI-Nspire Navigator stuff
« Reply #7 on: September 18, 2011, 12:37:03 pm »
Connect the mini to a computer [The link cable maybe].
See if the TI Link Software connects to it just like the standard USB method.
Also open a DOS window and do a c:>netstat -a
This might show any open TCP or UDP sockets listening on a port.
[This worked for the CAS+ : showing that open TCP socket listening on port 10001 !!!!]

Offline Adriweb

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Re: TI-Nspire Navigator stuff
« Reply #8 on: September 18, 2011, 01:04:09 pm »
Yep, on the CAS+, the networking protocol was ... talkative :P
My calculator programs
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Offline critor

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Re: TI-Nspire Navigator stuff
« Reply #9 on: September 18, 2011, 01:08:34 pm »
Connect the mini to a computer [The link cable maybe].

But the cradle has a mini-USB A connector.

Standard computer cables have an USB A plug and a mini USB B plug.


I cannot insert a mini USB B plug into a mini USB A connector.

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Offline bsl

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Re: TI-Nspire Navigator stuff
« Reply #10 on: September 18, 2011, 01:16:10 pm »
Are there inexpensive conversion cables/changers A=>B, B=>A ?

Offline critor

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Re: TI-Nspire Navigator stuff
« Reply #11 on: September 18, 2011, 01:24:22 pm »
Are there inexpensive conversion cables/changers A=>B, B=>A ?

They're harly findable, as such a convertion would break the USB standard.

"A" is for the host/master.
"B" is for the peripheral/slave.

Cables are designed so that you can't connect a host/master to another host/master, or a peripheral/slave to another peripheral/slave.


The Nspire calculator has a special mini-USB connector which accepts both A and B plugs.

But the cradle connector is not like that and only accepts a mini-USB A plug.
« Last Edit: September 18, 2011, 01:26:01 pm by critor »
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Offline Jim Bauwens

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Re: TI-Nspire Navigator stuff
« Reply #12 on: September 18, 2011, 01:25:16 pm »
You could make a female-mini-b to male-standard-a adapter if you have a broken device (mp3 player/etc) with a female-mini-b port.

Offline critor

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Re: TI-Nspire Navigator stuff
« Reply #13 on: September 20, 2011, 04:56:10 pm »
Episode 3: learn every secret of the official dock connector

http://tiplanet.org/forum/viewtopic.php?f=43&t=8233#p116412


Hope it will help you building better and more complete dock connectors in the future. ;)
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Offline Kjelddy

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Re: TI-Nspire Navigator stuff
« Reply #14 on: September 20, 2011, 05:05:22 pm »
google translate again :P
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