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Messages - critor

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1561
Other Calculators / Re: My new useless Nspire
« on: February 09, 2011, 02:50:16 pm »
Quote from: graphmastur on February 09, 2011, 12:43:42 pm
I would not send it back.  Think of what all we could use this for.  We could test USB from boot1!

Do you think I'm stupid enough to pay in order to get a less interesting Nspire ? :P

Even if they wanted to pay, I would not send it back to them.

1562
News / Re: TI-84 Plus & TI-Nspire video players in the works
« on: February 09, 2011, 04:52:22 am »
Quote from: JosJuice on February 09, 2011, 01:47:42 am
Quote from: z80man on February 09, 2011, 01:37:03 am
If you buy a TI-83+ SE does it still come with the 128k of ram? Does TI still sell the TI-83+ SE
All 83+SEs have 128 KB RAM, but I don't think TI sells them anymore.

83+SE were discontinued as of june 2008.

1563
Other Calc-Related Projects and Ideas / Re: TI-30xs II programming
« on: February 09, 2011, 04:39:13 am »
The TI-30XS ROM has been dumped.
It is using machine code for a Toshiba T49 (T4x series) cpu.

Note that's a 4-bits cpu.

You can test things by feeding the ROM (or a modified ROM) to the online emulator:
http://xandrean.free.fr/T4X/TIScientific.html


The TI-80 is not fully dumped yet (let's say 97%), but the missing bytes are very hard to get.
Anyway, it is using a 16-bits proprietary cpu from Toshiba (T6M53A).

1564
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 08, 2011, 01:24:05 pm »
You're right.
Sorry, I hadn't checked those dumps for over a year.

1565
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 08, 2011, 01:19:35 pm »
Quote from: JosJuice on February 08, 2011, 01:18:09 pm
Quote from: critor on February 08, 2011, 01:16:36 pm
You only need to flash the boot code and certificate sectors.
Then you should be able to install an OS from the computer or another calculator.
The certificate of an 84+ can be used if it's moved to the correct location, right?

It's true for the boot code, which is identical.
I don't know about the certificate...

1566
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 08, 2011, 01:16:36 pm »
Quote from: wideruled on February 08, 2011, 12:07:15 pm
I thought that I'd have to switch some resistors around to specify capacity on the hardware level (the Xbox360 determines the size of NAND installed that way) but the datamath images are identical. That makes my job a little easier. Once I get the new NAND installed, I'd have to find a dump from an SE. I imagine that asking for a NAND dump would get me nothing, so is there any way to modify a ROM dump from my calc to work, if anyone has the experience?

You only need to flash the boot code and certificate sectors.
Then you should be able to install an OS from the computer or another calculator.

And remember Datamath is not showing photos of the other side of the PCB...

1567
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 08, 2011, 09:01:07 am »
Quote from: ferox on February 08, 2011, 07:34:54 am
if it would be possible, it would be epic :D
but is it then also possible to insert a flash chip of 2gb or so?

No.

We might be able to replace the 1Mb flash chip in basic TI-84+ by a 2Mb flash chip, only because they seem to be using the same PCB as the TI-84+SE which allready have a 2Mb flash chip.

1568
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 08, 2011, 07:05:33 am »
You'll have to program the TI-84+ 1.00 or 1.02 boot code image in the NAND.

By the way, how does the TI-84+ OS detect the NAND capacity?

1569
Other Calc-Related Projects and Ideas / Re: Replace the NAND from a Ti-84+ to upgrade storage?
« on: February 07, 2011, 08:14:53 pm »
Compare the PCB and chip connections on http://www.datamath.org/ .

1570
News / Re: PolyPatch84 released
« on: February 06, 2011, 06:31:14 pm »
I've just updated PolyPatch84, the patch pack for TI-84+ OSes, by including the DEFRAG fix from Floppus Maximus (who has been credited, of course! ;) )
http://ti.bank.free.fr/index.php?mod=archives&ac=voir&id=2128

The fix initially worked on OSes 0.46-2.43.

It has been ported to OSes 2.53 & 2.55.



The patch pack for installing TI-84+ OSes on a TI-83+ has not been updated yet.

By the way, DJ... I've patched the 2.53 OS from TI-Bank and could install it on my TI-83+.
Can you please send me the last "OS" file you tried to flash so that I can compare the files?
Maybe something goes wrong during the IPS patching...

A TI-Bank user was able to install the 2.43 OS on his TI-83+ without any help. So this patch (at least) seems ok. Maybe you could try that, just to be sure...

Thanks. :)

1571
Other Calculators / Re: My new useless Nspire
« on: February 06, 2011, 05:49:20 pm »
Quote from: apcalc on February 06, 2011, 05:47:50 pm
Quote from: critor on February 06, 2011, 05:45:17 pm
Apcalc,  have you answered to the TI-Cares email?

It would be great if we could get an OS signed by the developer keys...

I responded to it Friday night.  I have not gotten a response yet, but TI does not work on Friday-Sunday, so I was not really expecting a response.  Hopefully, I will get one tomorrow! :)

I know, I just wanted to know.
Thank you very much.

1572
Other Calculators / Re: My new useless Nspire
« on: February 06, 2011, 05:45:17 pm »
Apcalc,  have you answered to the TI-Cares email?

It would be great if we could get an OS signed by the developer keys...

1573
News / Re: PolyPatch84 released
« on: February 05, 2011, 07:27:06 pm »
Quote from: DJ Omnimaga on February 05, 2011, 02:56:16 am
I'll try OS 2.53MP now.
EDIT: No luck, Cannot transfer. File format is invalid. Used OS 2.53MP from TI-BANK and ti83plus_2.53(ptt)(reset)(version)(group)(flash)(addr)(xlib)(84-83).ips then sent ti83plus_2.53(ptt)(reset)(version)(group)(flash)(addr)(xlib)(84-83).8xu.

Hum... I've patched all my files without redownloading them.
I'm going to check the file on TI-Bank. Just to be sure...


Quote from: Geekboy1011 on February 05, 2011, 07:12:30 pm
hmm any way we can include the defrag bug patch as well inthis for those who play chips challenge/use tiboy

Of course. Where is the patch?

1574
Other Calculators / Re: My new useless Nspire
« on: February 04, 2011, 08:00:09 pm »
Here's the Computer Link 1.0 installer:
http://ti.bank.free.fr/index.php?mod=archives&ac=voir&id=1439


1575
News / Re: PolyPatch84 released
« on: February 04, 2011, 07:25:14 pm »
Quote from: DJ Omnimaga on February 04, 2011, 05:20:47 pm
Strange. Could it be an hardware issue with my 83+SE or even a broken certificate? ???

Can you send me the file you tried to flash?
I'll check if it's exactly the same...

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