Author Topic: First discovery of nspire cm-c prototype  (Read 15734 times)

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Offline zweb

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First discovery of nspire cm-c prototype
« on: June 04, 2013, 04:39:14 am »
I have just bought a prototype of TI NSPIRE CM-C.
I will test it tonight(I'm a Chinese,so about 1:00 GMT)


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Re: First discovery of nspire cm-c prototype
« Reply #1 on: June 04, 2013, 04:42:37 am »
Ooh, a prototype. This is pretty interesting, especially that big hole with wires sticking out. Be sure we'll news about it when you'll post your tests.

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Re: First discovery of nspire cm-c prototype
« Reply #2 on: June 04, 2013, 04:45:40 am »
Very interesting. Thank you for posting pics. I'm curious what will be discovered about this prototype model.
:)

Offline critor

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Re: First discovery of nspire cm-c prototype
« Reply #3 on: June 04, 2013, 05:34:10 am »
The big hole is for the J04/debug connector which is supposed to have JTAG and is not soldered on production models.

For now, can we have the OS/Boot2/Boot1 versions?


Thanks.
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Offline zweb

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Re: First discovery of nspire cm-c prototype
« Reply #4 on: June 04, 2013, 07:33:35 am »
The big hole is for the J04/debug connector which is supposed to have JTAG and is not soldered on production models.

For now, can we have the OS/Boot2/Boot1 versions?


Thanks.
It doesn't boot up,and I don't know what to do now.Any pinout information about J04?I have a Jlink

Offline zweb

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Re: First discovery of nspire cm-c prototype
« Reply #5 on: June 04, 2013, 08:48:03 am »
The big hole is for the J04/debug connector which is supposed to have JTAG and is not soldered on production models.

For now, can we have the OS/Boot2/Boot1 versions?


Thanks.
I found that the L01A was broken,could you tell me the model of it?(It seems to be the same as CX/CM-C)

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Re: First discovery of nspire cm-c prototype
« Reply #6 on: June 04, 2013, 09:50:35 am »
This is really cool. I collect nspire prototypes, but I prefer the working ones :(. I would still like to see what secrets this one contains.
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Offline critor

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Re: First discovery of nspire cm-c prototype
« Reply #7 on: June 04, 2013, 01:24:17 pm »
The big hole is for the J04/debug connector which is supposed to have JTAG and is not soldered on production models.

For now, can we have the OS/Boot2/Boot1 versions?


Thanks.
It doesn't boot up,and I don't know what to do now.Any pinout information about J04?I have a Jlink

Unfortunately, as far as I know nobody has achieved (tried?) a JTAG connection on TI-Nspire CX/CM for now.
It's a proprietary connector, we don't know much about the pinout.

Does it at least turn on or not at all?


Please, don't throw it away - even if your prototype is not working, it has the J04 connector missing on production models, and this could be very useful.


Could we have a picture of the back with its serial visible in order to identify what kind of prototype it is?

Could we have a picture of the motherboard once opened with those strange wires connections?

And could we have a big picture of the J04 connector, as you have the only one which leaked in the world for now?



Thank you very much.
« Last Edit: June 04, 2013, 06:06:47 pm by critor »
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Re: First discovery of nspire cm-c prototype
« Reply #8 on: June 04, 2013, 01:45:03 pm »
Ui, a new prototype! Hoepefully we'll learn a lot new stuff :D

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Offline zweb

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Re: First discovery of nspire cm-c prototype
« Reply #9 on: June 04, 2013, 07:29:11 pm »
The big hole is for the J04/debug connector which is supposed to have JTAG and is not

soldered on production models.

For now, can we have the OS/Boot2/Boot1 versions?


Thanks.
It doesn't boot up,and I don't know what to do now.Any pinout information about J04?I

have a Jlink

Unfortunately, as far as I know nobody has achieved (tried?) a JTAG connection on

TI-Nspire CX/CM for now.
It's a proprietary connector, we don't know much about the pinout.

Does it at least turn on or not at all?


Please, don't throw it away - even if your prototype is not working, it has the J04

connector missing on production models, and this could be very useful.


Could we have a picture of the back with its serial visible in order to identify what

kind of prototype it is?

Could we have a picture of the motherboard once opened with those strange wires

connections?

And could we have a big picture of the J04 connector, as you have the only one which

leaked in the world for now?



Thank you very much.
These strange wires were connected to some 0ohm resistors.I believe they were

jumpers.So I desoldered them and connected resistors back.They were marked in blue.
L01A(an inductor) was broken when I got it,I don't know the exact inductance,can

anybody tell me?I think it should be the same as CX's.

I'm sorry that my network is quite slow,so I have to upload photos in several posts.
« Last Edit: June 04, 2013, 07:42:47 pm by zweb »

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Re: First discovery of nspire cm-c prototype
« Reply #10 on: June 04, 2013, 07:47:46 pm »
hey, in future please don't tripple post, use the edit button instead, and that big pictures put in [spoiler] tags please! :D


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Offline critor

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Re: First discovery of nspire cm-c prototype
« Reply #11 on: June 04, 2013, 08:31:59 pm »
Great - very interesting!


It's not a prototype which was given by TI for evaluation to some teacher/student, it's clearly a prototype coming from the development team - congratulations! :)


Would it be possible to have a picture of the back of the case?
It usually have interesting informations about prototypes in the serial, like the EVT/DVT/PVT codes.

Could we also have a picture of the ASIC 'Texas Instruments' chip?
The labels are visible on the last image but not readable, and they're not visible in the previous image.


As reference, here are pictures of the production TI-Nspire CM-C boards:
http://tiplanet.org/forum/gallery/image_page.php?album_id=119&image_id=1359
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Offline zweb

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Re: First discovery of nspire cm-c prototype
« Reply #12 on: June 04, 2013, 09:05:36 pm »
Great - very interesting!


It's not a prototype which was given by TI for evaluation to some teacher/student, it's clearly a prototype coming from the development team - congratulations! :)


Would it be possible to have a picture of the back of the case?
It usually have interesting informations about prototypes in the serial, like the EVT/DVT/PVT codes.

Could we also have a picture of the ASIC 'Texas Instruments' chip?
The labels are visible on the last image but not readable, and they're not visible in the previous image.


As reference, here are pictures of the production TI-Nspire CM-C boards:
http://tiplanet.org/forum/gallery/image_page.php?album_id=119&image_id=1359
My network is slow,so it takes me a long time to reply.
HD Photos here.
In CM-C photos,L01A was covered by green glue :(
On ASIC chip:
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JAPAN1111-ES
409506 e1

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Re: First discovery of nspire cm-c prototype
« Reply #13 on: June 05, 2013, 01:07:50 am »
Great discovery! :D
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Offline zweb

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Re: First discovery of nspire cm-c prototype
« Reply #14 on: June 05, 2013, 04:42:23 am »
It boots up!
OS 3.1.0.236,BOOT1 3.0.99,BOOT2 3.10.0,128MB ROM
the broken inductor was 4R7(4.7uH),I used a 5uH one instead.

« Last Edit: June 05, 2013, 04:47:53 am by zweb »