USB mouse on 84+

Andy_J · Post by **Andy_J** » Mon 11 Jul, 2005 9:07 pm

No, it should still work with the basic getKey since it actually does its work with GetCSC.

avatardelta · Post by **avatardelta** » Mon 25 Jul, 2005 7:56 pm

sweet. so, we could play mp3's later????
form usb flash drives of course

Andy_J · Post by **Andy_J** » Mon 25 Jul, 2005 10:53 pm

Of course not. The calculator can't output sound very well, and decoding an MP3 would be way too hard for it to do. If you really want a portable MP3 player, go buy one.

mnc2fan · Post by **mnc2fan** » Wed 17 Aug, 2005 3:54 am

Have any of you guys visited TI Calc? If you haven't check out the new developments of the USB device driver for the 84+ and 84+SE

Now support for thumb drives, which has some good capabilities for the 84+SE now. As what I can see is that it doesn't have to decode the video, so this seems to mean is that mp3s might be more possible than some of us may think. These are only my speculations though, so this isn't written any where.

Just check the video out, it may take a while to download but it is definitally worth the wait!

Jim e · Post by **Jim e** » Wed 17 Aug, 2005 4:12 am

MP3....no way. If Michael is tenacious enough to try it and succeeds. Well then he has surely set himself up for being declared a GOD OF TI!!!!!11!
But i can image a 1bit WAV player. So super crappy sound could be possible. And I can diffenate imagine sound plus video.

CoBB · Post by **CoBB** » Wed 17 Aug, 2005 6:56 am

mnc2fan wrote:As what I can see is that it doesn't have to decode the video, so this seems to mean is that mp3s might be more possible than some of us may think.

Then they aren't mp3s any more, just some bad quality pcm file, as it has been for years. Unless they find a way to properly modulate the link port without having to use up all the CPU time there's nothing to be excited about.

Timendus · Post by **Timendus** » Wed 17 Aug, 2005 10:07 am

How about a USB hub with a memory stick and external USB speakers hooked up..?

This is certainly REALLY cool, too bad the 83's don't have a USB port...

mnc2fan · Post by **mnc2fan** » Wed 17 Aug, 2005 5:06 pm

Well instead of mp3's lets just call it audio. Audio that doesn't have to be decoded like you said pcm files.

Remember before he made the USB driver no one believed you could use the usb port like you can on the compy. So if you think about it, modulating the link port to use minimum cpu power is possible, just no one knows how. Just give it time...

CoBB · Post by **CoBB** » Wed 17 Aug, 2005 5:41 pm

Well, there is a difference, because the USB port itself was undocumented, while we know exactly how to play digital sound through the link port. That involves assembling a certain pulse sequence which can only be done by the CPU. The only way to delegate this task would require a piece of hardware that can do this specific calculation autonomously. However, it's unlikely that TI added builtin sound support.

Timendus · Post by **Timendus** » Wed 17 Aug, 2005 5:53 pm

Do I remember correctly that someone tried to play sound with an interrupt routine and that it turned out to be impossible..?

Andy_J · Post by **Andy_J** » Wed 17 Aug, 2005 8:31 pm

USB Hub? That's a whole 'nother can of worms. Bandwidth would be crappier too. Go read my whole long post on ticalc if you want the nitty gritty.

Of course, they'll probably do it like they did for video and I'll have to eat my words.

mnc2fan · Post by **mnc2fan** » Wed 17 Aug, 2005 10:18 pm

Ok someone said something about an external video card for the calc, so how about an external usb sound card with its own decoding abilities.

Look no more than tigerdirect

I have no clue if it requires more than 100mA, but at the most you would have to supply it with its own battery power if you couldn't supply it with enought power.

With the bandwidth of the USB port being dragged down you can have sofware to tell the port to have all data packaged as one.

Jim e · Post by **Jim e** » Wed 17 Aug, 2005 11:21 pm

Timendus wrote:Do I remember correctly that someone tried to play sound with an interrupt routine and that it turned out to be impossible..?

I did, it worked pretty well, I even got PCM audio through okay.

mnc2fan · Post by **mnc2fan** » Thu 18 Aug, 2005 12:27 am

QuadPlayer

Jim e I don't know if this is the one you did or yours is on your web page

Jim e · Post by **Jim e** » Thu 18 Aug, 2005 12:39 am

Web page....Ahh, I foregot about that.*removes* That's outdated.

Quadplayer was something done by an intelligent person, Ben Ryves. Me, mine was half assed weekend project with a modified glaxain.

I should really do something with that.