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Author Topic: Nspire audio? -  (Read 2669 times) Bookmark and Share
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whatkindofausernameisthis
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« on: 05 February, 2012, 01:50:03 »
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I haven't had any experience with the Nspire USB protocol, so I would like to ask the community this: would it be possible to use this (http://www.amazon.com/GE-95554-Stereo-Adapter-3-5mm/dp/B0022NHQ9Q) or something like it to allow the Nspire to play audio?

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Edit: New thought. What about something like this (www.google.com/search?q=usb+mini+to+usb+a+female&tbm=shop) for flash drives?
« Last Edit: 05 February, 2012, 01:56:29 by whatkindofausernameisthis » Logged
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« Reply #1 on: 05 February, 2012, 02:12:05 »
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That would probably be feasible with Ndless, if someone figures out the USB protocol.
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« Reply #2 on: 05 February, 2012, 02:24:44 »
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i have been thinking about a way to make music but i want to use the dock port, it would be cool to have flash drive capabilities tho...
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« Reply #3 on: 11 March, 2012, 01:04:25 »
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About the flash drive idea: it was done on the TI-84 series with usb8x. Which makes it, in my mind, quite feasible.
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« Reply #4 on: 11 March, 2012, 02:25:38 »
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only problem is that we have no idea how to interface the USB module on the nspire. The 84+ USB module is well documented, but we know next to nothing about how to work the nspire's.
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« Reply #5 on: 26 March, 2012, 23:03:02 »
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Quote from: willrandship on 11 March, 2012, 02:25:38
only problem is that we have no idea how to interface the USB module on the nspire. The 84+ USB module is well documented, but we know next to nothing about how to work the nspire's.
Well... get a screwdriver and go check it out! It probably has an usb driver chip, so sound trough usb is gonna be close to impossible. IO via the docking port has been done before, so I think you should focus on that.
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« Reply #6 on: 26 March, 2012, 23:21:54 »
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Well the thing is... even if the 84+ one is well documented, even after 8 years there are still things we are unable or have an hard time to achieve (such as reliable multiplayer) on its USB. For the Nspire, don't expect any bigger achievements than the 84+ until 2015 or something.

Besides, for the Nspire it appears to be locked down tightly, even more than what allows ASM code to be ran (Ndless).
« Last Edit: 26 March, 2012, 23:22:44 by DJ_O » Logged
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« Reply #7 on: 29 March, 2012, 08:23:43 »
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I worked lately on the USB interface. The TI-Nspire OS is based on the FreeBSD USB stack, so porting BSD drivers should eventually be possible. My first tests on real HW look promising Smiley
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« Reply #8 on: 29 March, 2012, 08:39:24 »
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Nice!!
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« Reply #9 on: 29 March, 2012, 10:06:07 »
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Wow nice to hear ExtendedD. I assume usb coding will be still hard, though, right? It still seems to be a major hassle for most people on the 84+, for example GlassOS by AHelper.
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« Reply #10 on: 29 March, 2012, 11:46:16 »
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Of you course you'll need to have a good understanding of the USB concepts, but FreeBSD's USBDI API is well documented and there are many existing drivers that can be taken as examples.
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« Reply #11 on: 29 March, 2012, 17:37:47 »
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nice work Smiley
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« Reply #12 on: 31 March, 2012, 19:34:00 »
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And here is an early preview of the USB support: http://ndlessly.wordpress.com/2012/03/31/usb-hacking/
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« Reply #13 on: 31 March, 2012, 19:44:43 »
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Awesome!!
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« Reply #14 on: 31 March, 2012, 20:42:48 »
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That is great ExtendeD. Good job Cheesy

Question, though: will Nspire audio also sound like the VHS tape in the movie The Ring? TI-84+/Casio music sound got that kind of static too (unless chiptune based rather than wav)

http://djomni.57o9.org/prizmlaportedusoleil.mp3
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