i'm guessing the new ti-connect is required for 2.09, that's probably why you have to download it.

Good point, never thought of that.

If so, why could you go to http://epsdownload.ti.com/ download/delivery.asp? bn=2708522&fn=1&NAME=OS209.89u to get it?

This is not true - I installed 2.09 thought the old graph link software!

I load the ROM 2.09 using TI-Graph Link (89) usually without problems.

i put to on my calc, and i only have trouble with fastkbd and fastkeys (lock the calc) but with the other programs like preos, hail, hibview, bestview, complete, id....have no trouble at all, so IM HAPPY with the new rom...and i think is more faster =), my opinion

Did they ever get rid of that program size limit?

Do you honestly think that they would support programmers to that extent? Come to think of it, TI is getting friendlier I think.

It was wishful thinking...

What would happen I WE took over TI...thats a lot of fun to think about!

ViralX is writing an OS, so we don't have to.

If he writes a book or technical paper on how to do it, then it would be even easier for us to do what you propose. :)

We don't have to play to TI and their preferences. This is not the 86 (TI-86 not x86) so we ASM programmers can mess with the OS step by step as we figure out the requirements (not the code, of course-that's illegal :).

Let me know if they fixed the arccotangent function, that thing was completly broken in the last OS.

If you tried to to an inverse cotangent in degree mode, you just got nothing but "Internal Error"s.

Yes, according to Bhuvanesh Bhatt, it is fixed. See his post (under the nickname lalu) on the first page.

Can anybody find out the amount of free memory (RAM and Flash) after the updating?
I had installed a game (Gran...) and the same locked and I had to reset the calculator (TI-89). Ever since only display 655342 of Flash Memory.
How that I do to return to the normal?

Well I just updated my calculator today and you happen to have exactly the amount of FLASH ROM when you first install the new OS 2.09 (655342). Also the RAM I have is 196554 right after installing. So the game Gran did not eat any ROM from your calculator.
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\___/

Did you have 2.08 on there before?

I had 2.08 for a long time on my 89.
(a lot of my friends thought the icon desktop was pretty cool on the my calculator.)

I'm going to skip over telling you about how you said "on the my calculator" and point you to the web site link above.

By the way, I downloaded a miscellaneous program (background) and my calculator bugged out flickering and all so the new OS may not be the OS you want to have anyway. It may not even support graystyle for all I tried.

Background hasn't worked since 2.03.

Use the folowing code (it worked on 83+ v.1.15) to produce some rudimentary BASIC grayscale:

:FnOff
:ClrGraph
:ZoomStd
:AxesOff
:GridOff
:LabelOff
:RectGC
:ExprOn
:ClrHome
:Lbl A
:Disp
:DispGraph
:Goto A

What it does is clears the Graph and Home screens and switches fast between each-creating horizontal banding because the LCD and controller aren't as fast as the processor (obviously). Also: don't modify the order of the commands because they are designed to outmaneuver Smart Graph. I know this is 83+ BASIC but I'm just reading off the calc screen-translate as needed.

Um-sorry. There have to be delays between the switches, so the code segment:

:Lbl A
:Disp
:DispGraph
:Goto A

would be

:Lbl A
:Disp
:sin( cos( tan( cos( cos( tan( cos(6.234653257982359734))))))
:DispGraph
:sin( cos( tan( cos( cos( tan( cos(6.234653257982359734))))))
:Goto A

Excessively long trig functions work very well for momentary delays-just don't use sec, csc, cot due to their tendency to throw errors.