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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.

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Re: USB Peripherals for the 84+
Tom  Account Info

I just bought the cable that you use to connect the TI to USB stuff (like flash drives), and before I buy a keyboard/mouse, can I use them normally like a TI-Keyboard? I want to know because I would rather spend $5 on a USB keyboard than $40 for a TI keyboard. And would it work with those combo PS/2 to USB converters (the ones that let you plug in a regular mouse and keyboard with the output being USB)?

Reply to this comment    29 July 2006, 00:16 GMT

Re: USB Peripherals for the 84+
ShadowFate  Account Info

Ive read all 6 pages and still have a question: would extra drivers need to be written to use a USB hub?

Reply to this comment    11 September 2006, 01:14 GMT


Re: Re: USB Peripherals for the 84+
Andree Chea  Account Info

Yes, extra drivers would be needed. No, Dan will probably not implement hubs until some USB hardware documentation "magically appears." ;)

By the way, for anyone in the future, this is not a good place to reply, as it's over a year old; try asking in the more recent msd8x news article. Then again, there are those who like reading older articles. :)

Reply to this comment    13 September 2006, 19:37 GMT

Re: USB Peripherals for the 84+
tyler yeomans  Account Info

i get a usbdrv8x not detected
whats that?

Reply to this comment    14 September 2006, 22:42 GMT


Re: Re: USB Peripherals for the 84+
Brandon Wilson  Account Info
(Web Page)

It means USBDRV8X wasn't detected...

Download usb8x and have it on your calculator first before running msd8x.

Reply to this comment    3 October 2006, 19:16 GMT

Re: USB Peripherals for the 84+
Tom  Account Info

So I finally got my USB drive to work with MSD8X, but how do you watch videos on it now? Does the video have to be in program format? Or is there some program to run video files in black and white on the calc?

Reply to this comment    28 October 2006, 20:59 GMT


Re: Re: USB Peripherals for the 84+
thiemster  Account Info

I was wondering that also.

Reply to this comment    21 November 2006, 20:47 GMT

Re: USB Peripherals for the 84+
thiemster  Account Info
(Web Page)

I think that Doors OS is great and all, but wouldn't it be a lot cooler if it used the usb8x mouse support. You could use a regular computer mouse instead of the left,right,up,down keys on the calculator.

Reply to this comment    21 November 2006, 20:44 GMT
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