|
USB Peripherals for the 84+
Posted by Michael on 16 August 2005, 17:07 GMT
A few weeks ago, the ever-famous Dan Englender released a revolutionary new flash application called usb8x. Usb8x is a driver that interfaces with the On-the-Go USB port in the TI-84 Plus and TI-84 Plus Silver Edition. It is designed to be used by other programmers to create drivers for a variety of USB peripherals. Dan has included demos for a USB mouse, keyboard, and a loopback test for the USB Silverlink. Theoretically this means that drivers can be written to support nearly any USB device (so long as it consumes 100 mA or less of bus power). Usb8x will open up an entirely new world of possibilities for graphing calculators. Congratulations to Dan on an extremely impressive achievement!
You may be thinking that ticalc.org is awfully slow in reporting this news, but due to the recent news drought, I thought I would hold off on this article until it could be as amazing as possible: I have been working on a driver that runs on top of Dan's to allow USB flash drives to connect to the calculator. Yesterday I finished FAT16 reading support and so I now present a demo video (4.4 MB), exclusively available on ticalc.org, of a movie playing off my 1 GB Lexar JumpDrive. You may recognize the clip as part of The Matrix's infamous lobby scene. There is no dithering or grayscale, although both are probably possible. There is still much more work to be done before we have utilities and file explorer-type programs at a level where general users can use their USB drives.
|
|
|
Reply to this article
|
|
The comments below are written by ticalc.org visitors. Their views are not necessarily those of ticalc.org, and ticalc.org takes no responsibility for their content.
|
|
|
[ ! ]
|
anykey 
(Web Page)
|
|
*does his happy dance*
\o/ \o\ /o/ \o/
USB!
I STILL can't believe it!
This is probably one of the most monumental achievments we've seen in a while.
When MV was telling us on IRC what he was doing, I almost pissed myself.
OMFG
I still can't believe it!
I just hope it isn't too good to be true! :^)
|
|
Reply to this comment
|
18 August 2005, 02:37 GMT
|
|
|
Re: USB Peripherals for the 84+
|
|
MusicMan.7KalcProductions
|
|
I just want to point out that the 100ma limit is with the current cable architecture. Usb has two data lines and two power lines. If you knew which ones were the power and you have the right circuitry, you could make it a full power usb bus. Scince this calc isnt meant to do this kind of thing, it may be that there are power limits on he incoming signal on the usb bus. You would have to talk to TI about this....
You could also (theoretically) run the cable from the calc to a plugin or battery powered USB hub, thereby eliminating the power limit, as the hub would supply as much power as the device wanted. Theoretically you could also use multiple devices, although I dont know how the software would handle this.
If you could use a battery powered hub, this would be the best possible arrangement, allowing multiple devices. This would allow a mouse/keyboard combo. Or other things..... Now i just have to become an electronics engineer and learn asm!! (j/k of course - this stuff is farly basic.... if you have experience (i dont))
Keep in mind that the only thing here that is FOR CERTAIN and NOT THEORETICAL is that you could supply more power than the 100ma.
So again: Power limit is based on cable architecture
|
|
Reply to this comment
|
18 August 2005, 12:56 GMT
|
|
 |
|
|
|
|
|
|
|
 |
|
Re: Re: Re: Re: USB Peripherals for the 84+
|
|
Ultra_64
|
|
Did anyone say that somebody might make one for the TI-89 Titanium (HW3, AMS version 3.10)? I either overlooked at this discussion forum or... IDK. Anyway, how does this work? I mean, I do have a QuickiDrive (512 MB)... I wonder if I'm able to store stuff from my QuickiDrive to my calculator, provided that the TI-89 Titanium has a USB port?
On another unrelated topic, what do you call those usb port thingies that connects between 2 TI-89 Titaniums (not the one that we used to have the I/O port with the regular TI-89's)? I'm just wondering. Thanks!
P.S. Of course, I know this topic was merely for the TI-84+/SE, but seeing that the TI-89 Titanium also has the USB ports, I wonder how that program of yours would work? Again, thanks.
|
|
Reply to this comment
|
18 August 2005, 16:00 GMT
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Re: Re: Re: Re: Re: USB Peripherals for the 84+
|
Andy Janata
(Web Page)
|
|
URL above. 3 delete, 1 keep, 1 nonvoting.
It should be pointed out that at Wikipedia talk:Deletion policy#Notability not a criterion for deletion.3F, it is said (in way to many words) that notability is NOT a criterion for deletion (hence the page name and heading...), but also that "Currently, in VfD a sockpuppet vote is invalid, but a real vote citing bad reasons or no reasons is valid."
Anyway, some of the other things stated, such as "Unofficial calculator programming organization." and "Calculator programming organizations", are also incorrect -- last I checked, ticalc.org doesn't pump out their own programs. You could apply that reasoning to MaxCoderz, UTI, Cemetech, and the like, but I can't see it applying to ticalc.org.
However, I did go over the undeletion policy, and it doesn't really look like we can get it back. I'm half-tempted to start it over; perhaps I'll be bold.
For a discussion of this I had with other people on IRC #calcgames, see http://andysoft.ath.cx:2080/ ~andy/logs/calcgames/ calcgames.082005.txt at time index 21:27:45.
Also, we did figure out your identity. If you're trying to hide, you shouldn't put your URL in your comments.
|
|
Reply to this comment
|
21 August 2005, 14:29 GMT
|
|
1 2 3 4 5 6 7 8
You can change the number of comments per page in Account Preferences.
|
