Author Topic: msd8x won't work  (Read 28348 times)

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Offline ferox

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msd8x won't work
« on: January 25, 2011, 04:06:31 pm »
as the title says, it won't work with me, and i dont know what is wrong? (could be a lot...)
i have downloaded and sent USBDRV8X and MSD8X to my TI 84+, and i got a 2gb usb stick farmatted in FAT16.
i also got a gender changer for usb so that i could use my black link cable which is also use for calc to pc.
but it just keeps giving error 00C0, meaning that there was no usb inserted. i also noticed that, when i tried to link to my pc, my pc couldn't recognise my calc.
but when i deleted USBDRV8X it worked again. I even downgraded the OS to 2.43 (2.55MP first), but it keeps giving error 00C0
btw, what is this boot 1.00 and 1.02?

any suggestions?
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Offline Xeda112358

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Re: msd8x won't work
« Reply #1 on: January 25, 2011, 04:09:26 pm »
Some calculators don't work, I believe, due to missing RAM pages. At least I think that is the reason.

Offline TC01

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Re: msd8x won't work
« Reply #2 on: January 25, 2011, 04:10:04 pm »
I believe (though I'm not sure) that msd8x will only work on the older TI-84+ calculators with extra memory (older hardware revisions). Your calculator, if it's new, likely does not have the extra memory.

Again, I'm not entirely sure though.



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Offline ferox

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Re: msd8x won't work
« Reply #3 on: January 25, 2011, 04:13:01 pm »
I bought my calc in 2009...
that is pretty new, isn't it?
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Offline Xeda112358

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Re: msd8x won't work
« Reply #4 on: January 25, 2011, 04:15:14 pm »
Yeah. See, what apparently happened was for a short time TI made calculators with 8 RAM pages, but only 2 were used for user RAM. Somebody noticed this and they decided to start working with it. Unfortunately, TI stopped production of calcs with extra RAM without making anybody aware of this, so several awesome programs and features lost compatibility, even with the same OS and model.

Most new calcs DO have one extra RAM page which the OS makes slight use of. Still, it can be used for a little less than 16K of RAM. I'm working on making a mini VAT for this 16K to allow users to actually use that extra RAM.

Offline Happybobjr

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Re: msd8x won't work
« Reply #5 on: January 25, 2011, 04:15:51 pm »
Ya, unfortunately it is.  I wish I had an older calc :(
Edit: ninja'd
Most new calcs DO have one extra RAM page which the OS makes slight use of. Still, it can be used for a little less than 16K of RAM. I'm working on making a mini VAT for this 16K to allow users to actually use that extra RAM.

How do we know if we have an extra?
« Last Edit: January 25, 2011, 04:17:27 pm by happybobjr »
School: East Central High School
 
Axe: 1.0.0
TI-84 +SE  ||| OS: 2.53 MP (patched) ||| Version: "M"
TI-Nspire    |||  Lent out, and never returned
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Offline Xeda112358

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Re: msd8x won't work
« Reply #6 on: January 25, 2011, 04:21:47 pm »
I think if you have a USB port, you have at least one extra page of RAM. The OS restart 28h (a.k.a B_Call) makes reference to page 83h (which is how I found out). On that page, the OS uses some memory (if you want more technical detail, I do know a little of what goes on on that page...), but otherwise it leaves most of it alone.

Offline Happybobjr

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Re: msd8x won't work
« Reply #7 on: January 25, 2011, 04:33:26 pm »
how about if it has that huge port at the top?
School: East Central High School
 
Axe: 1.0.0
TI-84 +SE  ||| OS: 2.53 MP (patched) ||| Version: "M"
TI-Nspire    |||  Lent out, and never returned
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Offline Xeda112358

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Re: msd8x won't work
« Reply #8 on: January 25, 2011, 04:45:15 pm »
Erm, no clue... I know the extra RAM page is there for the USB port. Are you talking about the port that hooks up to other random equipment (besides your computer) or the serial port?

Offline Happybobjr

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Re: msd8x won't work
« Reply #9 on: January 25, 2011, 04:50:11 pm »
I don't know.  I just remember that my old foreign exchange (bother?.. oh well terms don't matter :P ) has this huge section on the top.
« Last Edit: January 25, 2011, 04:50:18 pm by happybobjr »
School: East Central High School
 
Axe: 1.0.0
TI-84 +SE  ||| OS: 2.53 MP (patched) ||| Version: "M"
TI-Nspire    |||  Lent out, and never returned
____________________________________________________________

Offline Xeda112358

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Re: msd8x won't work
« Reply #10 on: January 25, 2011, 05:01:45 pm »
Ah, the teacher model, maybe... I know all of my teachers had one that was supposed to hook up to a device that hooked up to a television or some other monitor. I am not sure if that one has extra RAM or not.

Offline Happybobjr

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Re: msd8x won't work
« Reply #11 on: January 25, 2011, 05:04:48 pm »
Ah, the teacher model, maybe... I know all of my teachers had one that was supposed to hook up to a device that hooked up to a television or some other monitor. I am not sure if that one has extra RAM or not.
How did my foreign exchange brother get one from ti's shop? 
School: East Central High School
 
Axe: 1.0.0
TI-84 +SE  ||| OS: 2.53 MP (patched) ||| Version: "M"
TI-Nspire    |||  Lent out, and never returned
____________________________________________________________

Offline Xeda112358

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Re: msd8x won't work
« Reply #12 on: January 25, 2011, 05:08:23 pm »
I've no clue. I always assumed it was a teacher model. TI also makes the software that lets you view the screen on a TV or computer. It hooks up to the giant port (it is like 1/2 or 1/3 the width of the calc, if I remember correctly) and then hooks into the machine which transfers the data to the tv/computer screen.

Offline Happybobjr

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Re: msd8x won't work
« Reply #13 on: January 25, 2011, 05:10:53 pm »
I think that must be it.
School: East Central High School
 
Axe: 1.0.0
TI-84 +SE  ||| OS: 2.53 MP (patched) ||| Version: "M"
TI-Nspire    |||  Lent out, and never returned
____________________________________________________________

Offline Xeda112358

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Re: msd8x won't work
« Reply #14 on: January 25, 2011, 05:16:22 pm »
Okay, well if that is the case, I am not sure if it has the extra RAM page. I am pretty sure, though, that all 84+ and all all 84+SE have at least one extra page and I am slightly less certain(but still fairly certain) that the 83+SE has an extra RAM page. The 83+ is what I am not sure about.

Regardless, fewer calculators have all 8 RAM pages (128KB), so certain apps like MSD8x or some Omnicalc functions (the virtual calc stuff) will not work.