i'm chris, from boston MA, trying to make chip & connect GB to renoise with arduinoboy. love GB programming & pixel art / demo creation, looking for talented ppl to work with on GB art/tools/demos...
177 May 15, 2012 4:37 pm
Re: Welcome to CM.O! (Introduction Thread) (676 replies, posted in General Discussion)
178 May 14, 2012 8:32 pm
Re: DMG No Power (4 replies, posted in Nintendo Handhelds)
clean the battery contacts with sand paper and make sure the batteries aren't dead -_-
179 May 14, 2012 6:23 pm
Re: ::VOTE FOR THE FINAL BATTLE :: Saskrotch's Weekend Battle Challenge (180 replies, posted in Collaborations)
pixls wrote:
loooooooool
180 May 14, 2012 5:36 pm
Re: Cooshinator 's New Release (DMG001) (29 replies, posted in Releases)
reminds me of dubmood, i like this style of chip a lot, high high replay value 
keep it up
181 May 14, 2012 5:25 pm
Re: gameboy developers? idea/ bounty (33 replies, posted in Nintendo Handhelds)
nickmaynard wrote:
but i think it would be awesome to write programs for a portable device.
thats why I keep coming back to it, I'm also a genesis fanboy but 16bit (scary asm) and non portable keep me away.
@nickmaynard, I can email you the resources I was talking about if you want..I'll come back and edit this post with the roms I made when I'm home.
I'd be down to work with someone whos got pixel / asm skills.. get at me!
182 May 14, 2012 4:22 pm
Re: gameboy developers? idea/ bounty (33 replies, posted in Nintendo Handhelds)
i have a pile of source code from other GB demos + tools (like rollercoaster) if anyone wants them, great for learning. GB dev is a little over my head, I did everything I wanted to do (timer, palette fade, hblank effect, read input, made a stop watch) but with all the little things you have to consider its tough to be creative. Making demos or tools working in a team would be aweeeeeeeeesooooooomeeeeeeee
183 May 14, 2012 4:17 pm
Re: gameboy developers? idea/ bounty (33 replies, posted in Nintendo Handhelds)
who wants to talk more about GB dev because I know i do
184 May 14, 2012 4:09 pm
Re: Whats the story with the demo scene and open source? (21 replies, posted in General Discussion)
anyone here into the GB demoscene? http://gameboy.modermodemet.se/ there's a chunk of demos on that site with source included...
185 May 11, 2012 4:30 pm
Re: The DMG's 5th Sound Channel? (97 replies, posted in Nintendo Handhelds)
egr wrote:
I'll gladly snag some off eBay and have them sent to you
186 May 11, 2012 2:28 pm
Re: The DMG's 5th Sound Channel? (97 replies, posted in Nintendo Handhelds)
boomlinde wrote:
My additional chip vote goes to YM2413
187 May 6, 2012 4:17 am
Re: c64 graphics seminar (5 replies, posted in Graphics, Artwork & Design)
ya this is awesome
188 Apr 27, 2012 5:07 pm
Re: sega genesis line out mod? (12 replies, posted in Sega)
If you look in the top right of the first image you see the CXA chip with only one audio out. Directly below that is the LM358, listed as 1/2, because only half is used to amplify the audio. You can clearly see right before the LM358 that the audio signals get merged into one signal. The other half is used to amplify some other signal from basically the other side of the board, I got lost following the trace many times, if this chip isn't intact the system wont boot up.
189 Apr 27, 2012 5:03 pm
Re: sega genesis line out mod? (12 replies, posted in Sega)
Genesis Model 1 schematics:
http://i.imgur.com/jcTCW.png
http://i.imgur.com/1Vptj.gif
http://i.imgur.com/pmxh1.gif
190 Apr 27, 2012 4:50 pm
Re: sega genesis line out mod? (12 replies, posted in Sega)
Ive been looking for an opportunity to bring this up. I did a bunch of research into this, trying to get line level stereo out on megadrive model 1. I have a ton of photos and saved docs so I'll come back later and post them.
I could be wrong on any of these points as this is just a hobby for me so please correct me if I am.
Everything i read online was people either tapping the amp for the headphone jack or the CXA chip, both of which I found less than satisfying.. the headphone amp for obvious reasons and the CXA chip because, from what i saw in the schematic i found and from looking at the board, the separate channels get merged before an op amp, then passed through the CXA as a buffer, then sent out the back. So not true "stereo" line level out..
What i did was copy the capacitor / resistor values from the op amp configuration and picked up the un amped, un merged signals before the amp, brought them to my own board with another op amp, amplified them seperately (dual amp), then sent them out the back. This keeps the headphone jack working uninterrupted, you don't need a cable hanging off the front of your genesis to get stereo audio, and to my knowledge this is the "cleanest" signal possible...
I tried making a track with TFM music maker that panned hard left to hard right, then used the dead fish rom maker to get it on my everdrive, only to realize my CRT only has 1 speaker...
is this something I should bring further?