Search found 17 matches

by TylerBarnes
Sun Feb 23, 2020 3:18 pm
Forum: NES Music
Topic: DPCM Loop Mode Frequency Calculation
Replies: 4
Views: 1296

Re: DPCM Loop Mode Frequency Calculation

Ended up getting it to a spot that has rendered me a usable set that I'm decently happy with. Posting fami files, dmc files, and code here for prosperity. Feel free to use the files for your own tracks. Default set ranges from notes D1-C3 Consumes 698 bytes total Contains 10 unique .dmc files With p...
by TylerBarnes
Fri Feb 21, 2020 11:11 pm
Forum: NES Music
Topic: DPCM Loop Mode Frequency Calculation
Replies: 4
Views: 1296

Re: DPCM Loop Mode Frequency Calculation

I know it's not the least bit satisfying to use someone else's work instead of doing it yourself, but I've generated a comprehensive set of every possible triangle-wave-on-DPCM: https://forums.nesdev.com/viewtopic.php?p=154032#p154032 Thanks, that looks great. I see your goal in making that set was...
by TylerBarnes
Fri Feb 21, 2020 12:58 am
Forum: NES Music
Topic: DPCM Loop Mode Frequency Calculation
Replies: 4
Views: 1296

DPCM Loop Mode Frequency Calculation

Hello, Working on a particular problem regarding the loop mode of the DPCM channel. There are a couple thing I would like clarification on, and input on. Since moving from ppMCK/MML to messing around in FamiTracker, I have recently realized that the DPCM channel actually has a mode to loop .dmc samp...
by TylerBarnes
Mon Feb 03, 2020 7:50 pm
Forum: Newbie Help Center
Topic: 'H' in Illegal Opcodes?
Replies: 2
Views: 1253

'H' in Illegal Opcodes?

Trying to understand some of the documentation out there regarding illegal opcodes. I cannot, however, figure out what the capital symbol 'H' is used for on this page for example: http://www.oxyron.de/html/opcodes02.html My assumtion would be the high byte of the address. But it does not have a lege...
by TylerBarnes
Thu Nov 14, 2019 11:14 pm
Forum: Homebrew Projects
Topic: Moonfall: A Zelda Compilation Album on Cart
Replies: 13
Views: 14166

Re: Moonfall: A Zelda Compilation Album on Cart

Thanks. I appreciate the heads up.
by TylerBarnes
Tue Nov 05, 2019 11:18 am
Forum: Newbie Help Center
Topic: Reading Palettes via $2007?
Replies: 6
Views: 3685

Re: Reading Palettes via $2007?

lidnariq wrote:Also note that the oldest NESes, and older Famicoms, don't permit reading the palette at all.
Hmmm, So then I guess my method may just be for nigh then. Compatibility is important, and I can already think of alternative ways for what I want to do without reading from the PPU.

Thanks guys!
by TylerBarnes
Tue Nov 05, 2019 11:13 am
Forum: Newbie Help Center
Topic: Reading Palettes via $2007?
Replies: 6
Views: 3685

Re: Reading Palettes via $2007?

Is this on hardware or on an emulator? Have you tried multiple emulators? Good call, other emulators are having different effects. Was using FCEUX because of the monitors, tried Nestopia with a better result. I will bust out the flash cart when I'm home from work. so those $3Fs you have in the spri...
by TylerBarnes
Tue Nov 05, 2019 1:30 am
Forum: Newbie Help Center
Topic: Reading Palettes via $2007?
Replies: 6
Views: 3685

Reading Palettes via $2007?

Anyone have the secret sauce on reading palettes from the PPU via $2007? I know it is not buffered like normal reads from VRAM since palettes are stored on the PPU itself, but everytime I try to read palettes to save in RAM, I get values from my name table. I'm doing this in my NMI with other graphi...
by TylerBarnes
Fri Oct 25, 2019 1:13 am
Forum: Homebrew Projects
Topic: Moonfall: A Zelda Compilation Album on Cart
Replies: 13
Views: 14166

Re: Zelda Compilation Album on Cart

cool project. for me though i do not run flash in my browser and i think many other people are the same, so might be worth switching the demo over to a javascript emulator instead. i noticed the rom doesnt work for me in mesen but works fine in nestopia though and i think youve done a good job, how...
by TylerBarnes
Wed Oct 23, 2019 8:37 pm
Forum: Homebrew Projects
Topic: Moonfall: A Zelda Compilation Album on Cart
Replies: 13
Views: 14166

Re: Zelda Compilation Album on Cart

Hello, Been a while. However, I finally completed this. Final product being sold in a limited first run. Details, Tracklist, In-Browser Flash Demo, Backstory, Shop for Purchase and other such info can be found on the website for this release. http://www.moonfallcartridge.com https://i.ibb.co/s9yxKBv...
by TylerBarnes
Wed Mar 27, 2019 12:48 am
Forum: Homebrew Projects
Topic: Moonfall: A Zelda Compilation Album on Cart
Replies: 13
Views: 14166

Re: Zelda Compilation Album on Cart

Mirroring solder joints: Seemingly labeled backwards on solder mask. I didn't know the convention 'V' was not for vertical "mirroring" but for vertical "scrolling" Not backwards. http://forums.nesdev.com/viewtopic.php?p=235743#p235743 Yes, 'seemingly' meant here to describe 'To those that assume it...
by TylerBarnes
Tue Mar 26, 2019 11:04 pm
Forum: Homebrew Projects
Topic: Moonfall: A Zelda Compilation Album on Cart
Replies: 13
Views: 14166

Re: Zelda Compilation Album on Cart

Have been unsoldering mask roms to take a break from mml and coding for the time being. And then with boards ready and waiting, I decided to wire up a socket and do some hardware tests. _While there where issues at first_ Wiring confusion: 27C010 vs 27C512 (Solution = lift and ground pin 22 (OE/Vpp)...
by TylerBarnes
Tue Mar 26, 2019 1:44 am
Forum: NES Hardware and Flash Equipment
Topic: First post! EPROM Substitutions and Pinout Confusion?
Replies: 5
Views: 6976

Re: First post! EPROM Substitutions and Pinout Confusion?

Looks like pin 22 on the 27C512 is in the same spot pin 24 would be on the 27C010 so wiring pin 22 to GND is sort of working on console. Though my program is pretty broken now. Not sure if just more wiring error or something else. *Scratches head*
by TylerBarnes
Mon Mar 25, 2019 11:42 pm
Forum: NES Hardware and Flash Equipment
Topic: First post! EPROM Substitutions and Pinout Confusion?
Replies: 5
Views: 6976

Re: First post! EPROM Substitutions and Pinout Confusion?

27C512 only holds 64 KiB; few games have exactly that much PRG. (For whatever reason, NES games usually had 32 or 128 KiB of PRG, but largely skipped 64 KiB). You may be better served either ignoring half the capacity, or making a multicart. For 28-pin sockets, the NES pinout matches the standard; ...
by TylerBarnes
Mon Mar 25, 2019 11:13 pm
Forum: NES Hardware and Flash Equipment
Topic: First post! EPROM Substitutions and Pinout Confusion?
Replies: 5
Views: 6976

Re: First post! EPROM Substitutions and Pinout Confusion?

I'm working on an UNROM board. Have a bunch of 27C512 chips around (28pin) . would these need the wiring suggested here? pin 24 to GND? Not really 100% on what chip this re-wire was meant for. I beeped it out and Pin 24 on the 27c512 is A9 rightly going to NES cart pin 4.