« previous next »
Pages: [1]   Go Down

Author Topic: TI84+ Generating Video!!  (Read 5287 times)

0 Members and 3 Guests are viewing this topic.

Offline Keoni29

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2466
  • Rating: +291/-16
    • View Profile
    • My electronics projects at 8times8
TI84+ Generating Video!!
« on: October 27, 2011, 05:11:00 am »
I really don't know if it's possible to generate a proper 1-bit video signal with a TI 84+, but I ran some tests and this is my best result:

It alternates the linkports' state rapidly, but it's still too slow to generate a full white screen. I used AXE, but I think I have to use very optimized ASM to generate better video. Even then it won't be possible to do anything else but video playback.
« Last Edit: October 27, 2011, 05:11:35 am by Keoni29 »
Logged
If you like my work: why not give me an internet?







Offline Sorunome

  • Fox Fox Fox Fox Fox Fox Fox!
  • Support Staff
  • LV13 Extreme Addict (Next: 9001)
  • *************
  • Posts: 7920
  • Rating: +374/-13
  • Derpy Hooves
    • View Profile
    • My website! (You might lose the game)
Re: TI84+ Generating Video!!
« Reply #1 on: October 27, 2011, 12:17:52 pm »
haha, nice! :)
Logged

THE GAME
Also, check out my website
If OmnomIRC is screwed up, blame me!
Click here to give me an internet!

Offline DrDnar

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 546
  • Rating: +97/-1
    • View Profile
Re: TI84+ Generating Video!!
« Reply #2 on: October 27, 2011, 12:26:12 pm »
Ben Ryves already did a proof-of-concept to that effect. Have fun---projects like this can really teach you a lot.
Logged
"No tools will make a man a skilled workman, or master of defense, nor be of any use to him who has not learned how to handle them, and has never bestowed any attention upon them. . . . Yes, [] the tools which would teach men their own use would be beyond price."—Plato's The Republic, circa 380 BC

Offline aeTIos

  • Nonbinary computing specialist
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 3915
  • Rating: +184/-32
    • View Profile
    • wank.party
Re: TI84+ Generating Video!!
« Reply #3 on: October 27, 2011, 02:25:36 pm »
Seems a cool project either. Did you use a FULL?
« Last Edit: October 27, 2011, 02:25:50 pm by aeTIos »
Logged
I'm not a nerd but I pretend:

Offline apcalc

  • The Game
  • CoT Emeritus
  • LV10 31337 u53r (Next: 2000)
  • *
  • Posts: 1393
  • Rating: +120/-2
  • VGhlIEdhbWUh (Base 64 :))
    • View Profile
Re: TI84+ Generating Video!!
« Reply #4 on: October 27, 2011, 04:58:40 pm »
Very nice!  Great work! :)
Logged

Offline Keoni29

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2466
  • Rating: +291/-16
    • View Profile
    • My electronics projects at 8times8
Re: TI84+ Generating Video!!
« Reply #5 on: October 27, 2011, 05:02:22 pm »
Quote from: aeTIos on October 27, 2011, 02:25:36 pm
Seems a cool project either. Did you use a FULL?
Yes I did :( Pure optimized asm might do the trick, cuz I got big white scanlines when I rubbed the wire over the battery
Logged
If you like my work: why not give me an internet?







Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55943
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: TI84+ Generating Video!!
« Reply #6 on: October 27, 2011, 05:29:21 pm »
Interesting. I'M curious how much this can be pushed in terms of graphical display. I remember seeing Benryves' project a few years ago and was amazed.

By the way does this work only on PAL TVs or will it work on NTSC ones too?
Logged

Offline Keoni29

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2466
  • Rating: +291/-16
    • View Profile
    • My electronics projects at 8times8
Re: TI84+ Generating Video!!
« Reply #7 on: October 28, 2011, 12:52:02 pm »
It's actually easier on ntsc tv's cuz it's a lower frequency thats needded. I really dunno if it matters since modern tv's support both
Logged
If you like my work: why not give me an internet?







Pages: [1]   Go Up
« previous next »