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AVR as demo platform

category: general [glöplog]
As a sidenote: Maker Faire 2007 - Homebrew CPU O____O

Or if one wants to go really _old_ school: Meccano Difference Engine \o/

Funny things apart: AVR ftw (would be nice if flt's hw was opensource)
added on the 2008-03-31 00:04:08 by bdk bdk
Quote:

just get the Gameboy Player for Game Cube, then you can capture a regular PAL/NTSC video signal :)

or... here's a crazy idea: code a gamecube demo!
added on the 2008-03-31 00:09:55 by xernobyl xernobyl
broderick: he published everything including source and circuit. see link in op
added on the 2008-03-31 00:18:15 by Calexico Calexico
Wow, good to know :)
added on the 2008-03-31 02:24:57 by bdk bdk
It would be more fun to have a competition where people have to develop their own hardware, and then demo on it. We could have a $10 demo compo instead of a 4k or 64k, where the parts cannot cost more than 10 bucks :)
added on the 2008-03-31 04:11:13 by Inopia Inopia
Firecrackers!
added on the 2008-03-31 04:30:57 by bdk bdk
Quote:
Actually, the GBA emus have been full-framerate since 2004 and there are very, very few hardware-level tricks that aren't emulated perfectly.


very few is still too much.
Quote:
We could have a $10 demo compo instead of a 4k or 64k,


Okay, now THAT is a great idea. That would really bring out the low-level hardware hacks.
added on the 2008-03-31 07:02:20 by GbND GbND
Actually I really need to mention how fucking fantastic the AVR emulators and IDE are: I was able to get several projects working on an AT_TINY 4k chip very, very quickly. Since Atmel makes both the hardware and the emulator/IDE, it's all just perfect. You can build, compile, and debug your program even before ordering your chips : D

Of course, the "only pure hardware is pure" whiners will refuse to use this. I'm not sure why.
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=2725
added on the 2008-03-31 07:15:30 by GbND GbND
Quote:
Actually, the GBA emus have been full-framerate since 2004 and there are very, very few hardware-level tricks that aren't emulated perfectly. Go take a look at them before you say things like this! : D


nonsense. i just partook in my first gba demo at breakpoint and can tell you for certain that both VBA (in a horribly bad way) and nocash (in a minor way) screw up the demo. VBA just does lots of things completely wrong (and has waay below full framerate - because we used VBA for sync, i often had to reduce the size of the scene significantly before i could run is fast enough on VBA to set the parameters), nocash generally is pretty tight but still managed to be half a beat off with sync on our demo. half a beat is a pretty long time.

if you *must* use emus, use nocash (and NEVER vba), and make sure the demomaker agrees and has test-ran it on nocash. a gba-to-tv-hack is better, though (except when the video gets upscaled with bilinear filtering and the whole boatload of crap of course :( )
added on the 2008-03-31 09:12:29 by skrebbel skrebbel

We may be losing our favorite geeky wild-demo platform. The microsoft of the microcontroller business is trying to buy out Atmel.

http://blog.makezine.com/archive/2008/10/microchip_along_with_onse.html
added on the 2008-10-26 09:52:46 by Calexico Calexico
knos: Capturing GBA demos is no stress at all once you have a GBA2TV or GBA TV Transverter (two very similar products)...
added on the 2008-10-26 11:07:09 by kusma kusma
Oh, and as has been pointed out: GBND is completely wrong. The GBA emulators are not at all good enough to make decent captures.
added on the 2008-10-26 11:09:46 by kusma kusma
I tried to score the gba2tv or gba tv transverter but they're not that easy to fetch.. plus isn't at least one of them only working on the gba advance classic?
added on the 2008-10-26 11:14:38 by _-_-__ _-_-__
They both only works with the classic GBA. What's the problem with that? And yeah, they can be a bit tricky to score :)
added on the 2008-10-26 11:36:45 by kusma kusma
yeah exactly.. I sold my gba advance classic for a sp a long time ago
added on the 2008-10-26 12:52:43 by _-_-__ _-_-__
Well, the adapters pretty much turns your GBA into a hacked beast anyway, so you'd want to have a separate GBA for capturing anyway. I don't see the problem with that.
added on the 2008-10-26 13:23:16 by kusma kusma
BTW, i'm seeing cheap GBA flashcarts on dealextreme. Grab? They have some EFA lite ones (they might be clones/fakes though), besides a myriad of nonames.
added on the 2008-10-27 22:54:38 by eye eye
Anyone encountered a GBA Transverter yet or is selling one? I'm still trying to find something to capture GBA demos...
added on the 2008-12-04 14:04:31 by raer raer
*bump*

eye: I ordered an EFA lite from dealextreme some time ago. Works well, but has to RTC (which you probably don't really need anyway...).
added on the 2008-12-04 15:30:16 by raer raer
I have one (currently not working because i accidently broke a diode) avr "prototyping" pcb which i made myself. It was a fun thing to do :P

I wanted to make a TV-Pong but i never got the timings right, could be because of the clock source tho.
added on the 2008-12-05 08:04:27 by Akselii Akselii
Quote:
I wanted to make a TV-Pong but i never got the timings right, could be because of the clock source tho.

Yes, the clock is the critical thing =)
added on the 2008-12-05 08:22:23 by sol_hsa sol_hsa
xrl: rawkz! "simple" 2d fx are totally underrated, anyway.. :)
added on the 2008-12-10 03:03:10 by xyz xyz

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