Search found 45 matches

by Haruka
Thu Nov 08, 2018 5:58 pm
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

Re: Trying to display all tiles of CHR on screen

Using sprite 0 hit check perfectly solved my problem! 0000.png 0001.png Here is the code: #define PPUCTRL (*(unsigned char*)0x2000) #define PPUMASK (*(unsigned char*)0x2001) #define PPUSTAT (*(unsigned char*)0x2002) #define OAMADDR (*(unsigned char*)0x2003) #define OAMDATA (*(unsigned char*)0x2004) ...
by Haruka
Thu Nov 08, 2018 5:48 pm
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

Re: Trying to display all tiles of CHR on screen

To be honnest, if your goal is to have 512 tiles for background instead of the usual 256, and that you're going to do that with a mapper, I'd rather suggest using MMC2 or MMC4 than MMC3. Those mappers were developped exactly for this purpose. MMC3 is much more common than MMC2/MMC4. Easier to find ...
by Haruka
Thu Nov 08, 2018 1:21 am
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

Re: Trying to display all tiles of CHR on screen

Here's a question: if you're generating the patterns externally, why are you restricting yourself to using only 512 tiles? Because 8KB of CHR RAM is enough for my requirement. If you use 16KB of CHR-RAM, instead of 8KB, you'll have enough tiles to fill the entire screen with unique graphics. The on...
by Haruka
Wed Nov 07, 2018 9:34 pm
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

Re: Trying to display all tiles of CHR on screen

MMC3 is a good idea. But currently I don't know how to manipulate MMC3. Maybe I could try searching some sample code.
by Haruka
Wed Nov 07, 2018 8:58 pm
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

Re: Trying to display all tiles of CHR on screen

You could do a sprite 0 split halfway through the screen to change the tiles below a given scanline Well, I believe that is indeed something advanced technique. I'll continue reading the tutorials and trying my best to see if I can make it. but the easier way might be just to hook up bit 4 of $2000...
by Haruka
Wed Nov 07, 2018 5:55 pm
Forum: Newbie Help Center
Topic: [SOLVED]Trying to display all tiles of CHR on screen
Replies: 16
Views: 6771

[SOLVED]Trying to display all tiles of CHR on screen

Hello everyone. I'm trying to display all tiles of CHR on the screen that an NROM can hold. Here is the CHR I've made: 0000.png Here is the code I've written: #define PPUCTRL (*(unsigned char*)0x2000) #define PPUMASK (*(unsigned char*)0x2001) #define PPUSTAT (*(unsigned char*)0x2002) #define PPUADDR...
by Haruka
Tue Oct 02, 2018 5:48 am
Forum: NES Hardware and Flash Equipment
Topic: Kazzo USB rom dumper / dev cart programmer
Replies: 672
Views: 360798

Re: Kazzo USB rom dumper / dev cart programmer

Hello everyone! Recently I'm trying to make a mapper3 flashcart using HVC-CNROM-256 board as a donor. But I don't know how to wire the pins after I removed both ROM chips. So I'm here to see if you guys have ever made such a flashcart and are willing to give me some hints. Here are photos of my dono...
by Haruka
Thu Aug 16, 2018 12:24 am
Forum: NES Hardware and Flash Equipment
Topic: Revive the Joystick 2 MIC functionality on NOAC, possible?
Replies: 10
Views: 6175

Re: Revive the Joystick 2 MIC functionality on NOAC, possibl

QFP package of NOAC is rare nowdays. Most of them are black blob of epoxy. Mine too...
by Haruka
Wed Aug 15, 2018 6:34 pm
Forum: NES Hardware and Flash Equipment
Topic: Revive the Joystick 2 MIC functionality on NOAC, possible?
Replies: 10
Views: 6175

Re: Revive the Joystick 2 MIC functionality on NOAC, possibl

I finally modified a UNROM board to flash cart successfully and burned allpads on it.

$4016 D2 on my NOAC is driven low, not open bus.
IMG_20180816_093117.jpg
A little surprise is that both $4016 D7 and &4017 D7 are driven low!
by Haruka
Mon May 21, 2018 10:18 pm
Forum: Reproduction
Topic: [SOLVED]Family Basic Cartridge Repro, need help
Replies: 3
Views: 9131

Re: Family Basic Cartridge Repro, need help

Problem solved. AT29C256 worked like a charm.
by Haruka
Mon May 21, 2018 9:10 am
Forum: NES Hardware and Flash Equipment
Topic: Revive the Joystick 2 MIC functionality on NOAC, possible?
Replies: 10
Views: 6175

Re: Revive the Joystick 2 MIC functionality on NOAC, possibl

tepples wrote:How is NOAC sending clock pulses to the controller? Does the low-level mode of allpads show that $4016 D2 is open bus, or is it driven low?
Your allpads is mapper0?
However there is no CHR in the ROM.
by Haruka
Thu May 10, 2018 7:43 pm
Forum: Reproduction
Topic: [SOLVED]Family Basic Cartridge Repro, need help
Replies: 3
Views: 9131

Re: Family Basic Cartridge Repro, need help

Thank you for your reply, lidnariq. I know it is an NROM with PRG RAM. I've read the documents of Kazzo and learned something on how to choose flash chips. It seems AM29F040 is the best choice, which benifits from its Command Address Width and something else. However I don't have this chip, neither ...
by Haruka
Thu May 10, 2018 5:21 am
Forum: Reproduction
Topic: [SOLVED]Family Basic Cartridge Repro, need help
Replies: 3
Views: 9131

[SOLVED]Family Basic Cartridge Repro, need help

I'm trying to make a Family Basic Cartridge Reproduction. Recently I've done some lessons and prepared some parts and chips for this work. Before I start, I want to make sure that my direction will not lead me to a dead end: I have 2 AT29C256 flash chips. Is it possible to use them as PRG/CHR roms a...
by Haruka
Fri Mar 23, 2018 10:32 pm
Forum: NES Hardware and Flash Equipment
Topic: Revive the Joystick 2 MIC functionality on NOAC, possible?
Replies: 10
Views: 6175

Re: Revive the Joystick 2 MIC functionality on NOAC, possibl

tepples wrote:How is NOAC sending clock pulses to the controller? Does the low-level mode of allpads show that $4016 D2 is open bus, or is it driven low?
Sounds a good idea! I'll try this and see if it works. Thank you very much!
by Haruka
Fri Mar 23, 2018 9:29 pm
Forum: NES Hardware and Flash Equipment
Topic: Revive the Joystick 2 MIC functionality on NOAC, possible?
Replies: 10
Views: 6175

Revive the Joystick 2 MIC functionality on NOAC, possible?

We all know that some games require the MIC functionality. But it is not available on AV Famicom nor on NOAC Famicom clones. According to this schematic, http://nesdev.com/Ntd_8bit.jpg The MIC signal has two paths: The analog signal is sent and mixed with the audio output, so that we can hear the vo...