I would say do two: one as a toggle which could control power, one as a momentary for the reset.

626

(70 replies, posted in Releases)

NO CARRIER wrote:

I just keep checking this thread every few hours to make sure nobody is hating on this shit.

Well, you'd best take a shovel to my head. smile

My criticism: while this album has loads of awesome on the surface, frequent listening can and will ruin the experience for you. After listening to this for nearly a whole day I began to find some of the tracks to be increasingly unsatisfying. Eventually it got so bad I had to put on some prog-house, but when even that did not provide the relief I sought I turned to techno. This is the musical analogue of being driven to drink.

However, I do not have a clear and succinct reason for why I suddenly disliked the tunes, other than that I simply listened to them too much. Now, some music is actually good enough for an entire day of listening, just not this one.

All that being said, it is very very rare for me to come across a chiptune album that can even come close to this. Good work!

xero wrote:

also, ebay has lots of deals search: "potentiometers lot"

This. One of the few reasons I still use eBay sometimes is the obscure part sellers who can have lots at insanely good prices.

Blargg and I were on IRC today and have hashed out all the details and made them into a roadmap for the beta release. The hardware design is essentially locked in, barring any catastrophic issues. Blargg has begun what amounts to a core-rewrite to help get things more stable and properly modularized. The parts for the beta run have been ordered. Once the parts have arrived and the code has reached our benchmark the beta production run will roll out. I expect that the next few days will be fairly intense, but things are finally starting to come together a bit more.

629

(30 replies, posted in General Discussion)

facundo wrote:

tour ruled. train ride home didn't. might have to start doing this in argentina soon. come visit please!

Please accept my condolences on your impending deportation. sad US immigration laws suck. I hope they don't bust anyone else in your family, or anyone else you know.

630

(70 replies, posted in Releases)

Hmm, I'll need to give it a very much closer listen to make absolutely sure, but this album has a good deal of awesome on the surface. I'll report back after I've had a chance to immerse myself in it a bit more.

631

(82 replies, posted in Nintendo Handhelds)

The only reason to do anything with a DMG, especially overkill mods, is because:

IT'S AWESOME!

Keep up the good work, I hope to see this mobo get produced.

632

(82 replies, posted in Nintendo Handhelds)

nitro2k01 wrote:

I think the main problem with GBP is the choice of battery type, (AAA instead of AA) not the DC/DC. Bibin did a modification where he used a Li-Po (IIRC) battery, which increased stability greatly. EMS carts are notorious though, because they have a design flaw which makes it eat more power than it should.

Yeah, that works because then if you overdraw the DC:DC it won't at least bomb out as soon as the batteries have a little voltage dip. I was just thinking, if you're making a new mobo for the DMG, it would be maybe a tad easier to deal with those issues. Again, all my suggestions are pretty much speculative and I'm just suggesting the way you'd do it for a really clean build that's probably totally overkill. Since we're in a thread about replacing the DMG mobo, I though it might as well throw it in there, since a new mobo is also probably overkill. smile

633

(82 replies, posted in Nintendo Handhelds)

nitro2k01 wrote:

Arfink: Picking up noise from address lines: Marginal problem. Insofar that this is a problem, it can be improved by tapping ground off of a location near where you tap the signals.

The ESD argument... No, just no. If you want me to elaborate on why this isn't a problem, I could.

I guess my approach is more coming from the modding-a-stock-DMG standpoint, not so much from the new motherboard. As for ESD, I am mainly referring to some kinds of DIY prosound mods which basically connect right up the CPU audio output pins, which to me is just something you shouldn't do out of the principle of the thing. In actual practice it's probably be OK, but I still wouldn't do it. Same for the noise issue, you can actually add more shielding/ground plane etc. with a new board, so why not.

As for the DC:DC, that's not some scare tactic, I'm just trying to be helpful. I know the DC:DC in gameboys is pretty cheaply made, and it does in fact add alot of noise. Furthermore, replacing the DC:DC would also provide the added benefit of making the gameboy more capable of handing things like EMS carts, backlights, arduinoboys, etc, which draw alot more current than the DC:DC is made to handle. Especially in the GBP this would help to reduce problems with screen dimming and catastrophic crashes due to overdrawing the converter.

634

(82 replies, posted in Nintendo Handhelds)

low-gain wrote:

i think a simple power supply upgrade, and a better output amplifier circuit would be all that is needed to make the dmg's output better.
they didn't design the thing with audio quality in mind.. So they just tossed what ever worked in... and since they were only concerned with the digital
side of the circuit.. again, it just wasn't their main focus....

I really think if a newer supply was designed and installed into a dmg you'd see some serious change in how the thing sounds.
I'm sure the technology of DC:DC converters has improved since the 80's.

I agree with this, and also I would say that the only reason I can think of that Prosound actually does anything is because it bypasses some really crappy audio hardware. Unfortunately, most prosounds I have seen would also not have any shielding or filtering at all, so you'd still pick up noise from the surrounding address lines. Also, with the audio output basically connected directly to the CPU as many prosounds do, you're greatly increasing the risk of ESD damage to the CPU.

I would say the best sound quality on any gameboy, not just the DMG, would come from a combination of replacing the DC:DC converter with a better one, as well as bypassing the cruddy internal filter and amp circuit and instead running through a properly designed filter and op-amp.

blargg wrote:

Only 2A03 sound can be supported by the NSF player, unless you can hotswap a VRC6 cartridge into the NES. arfink hasn't had luck with hotswapping on his NES, and I haven't either with my Munchausen prototype. Apparently it depends on some aspect of the cartridge PCB, because some of my others hotswap just fine.

Ii suddenly occurs to me that on some carts the PCB pins are staggered a bit on the ends, IE, some stick out farther. If the ground and/or power were made to do this then that would allow those pins to be disconnected last when pulling the cart, preventing odd data states which would occur with address lines floating, which would presumably crash the NES during hot-swapping. I will need to check if my memory is correct, and if so, whether it would then be possible to make the Munchausen do something similar, perhaps with an alligator jumper.

I didn't actually manage to show every single feature of the firmware/PC side software in this last video because I was running short on time, so I am thinking of making another short one, maybe 1-2 mins, showing the recovery menu and a few more features of the PC side software that are rather cool, like remote game startup and SRAM backup/loading.

Blargg has been working very hard on the firmware for the cartridge, and I got a chance to test some things out yesterday. I have made up a new video which details alot of the new features and kinda shows it all off. Please watch and enjoy. big_smile

638

(13 replies, posted in General Discussion)

uB they do things like that together at work instead of being able to go home. sad Yeah, lets play games with my co-workers instead of being at home. They work their coders awfully hard, these sorts of things are supposed to help them be sane again.

639

(8 replies, posted in Releases)

It does. NOM NOM NOM I lurvs PC musicdisks!

640

(8 replies, posted in Releases)

OH YES. Linux version would be great, but for now I'm gonna try to load it up in Wine.