Search found 750 matches
- Mon Oct 14, 2024 1:54 pm
- Forum: Hardware
- Topic: Sega Genesis Game Cartridge PCB with dual DIP32 8-Bit Mask ROM's
- Replies: 2
- Views: 7839
Re: Sega Genesis Game Cartridge PCB with dual DIP32 8-Bit Mask ROM's
Some games uses 8bit ROM and 74x373 as data bit extender (it keep high byte while low goes directly from ROM itself). CAS2 pin required.
- Sun Aug 11, 2024 5:10 am
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 156
- Views: 206328
Re: HDD (or flash) instead of a CD, questions...
I saw DSView is based on sigrok...does it mean decoder follow the same rule than for sigrok ? if yes, I already know how I could write a command/status decoder and a subcode decoder ;) There was version #2, which was more like Sigrok, and now there is version #3, which is basically a Sigrok-style s...
- Fri Aug 09, 2024 7:01 pm
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 156
- Views: 206328
Re: HDD (or flash) instead of a CD, questions...
The records I'd like are listed on the "Signals" part of this page . Be free to ask me because some of them are a little cryptic ;) You already did some of them but unfortunately, I didn't save the pictures and so they're lost. I'm very sorry about that. Like you see, you can take your time. Okay, ...
- Fri Aug 09, 2024 8:26 am
- Forum: Hardware
- Topic: HDD (or flash) instead of a CD, questions...
- Replies: 156
- Views: 206328
Re: HDD (or flash) instead of a CD, questions...
next step : capture data with my Saleae -> see you in some months ;) 7 years passed since 2017 and I didn't use the Saleae mainly anymore. I still have it but Dreamsource is much handle and you can easily make any decoder you ever need just python it with prefered TXT editor. You can even unzip the...
- Mon May 20, 2024 4:45 am
- Forum: Announcement
- Topic: The world has changed
- Replies: 6
- Views: 11800
Re: The world has changed
Genny dev today is equal to SDGK dev so everyone is on SGDK support's Discord. Discord allows quick question/answer, etc... so it's a very good media for that. NesDev has his own discord server. With the whole spectrum of NesDev topics/rooms. Does SpritesMind only have a discord server specifically...
- Tue Sep 05, 2023 6:40 am
- Forum: Hardware
- Topic: FPGA version
- Replies: 26
- Views: 82226
- Wed Aug 23, 2023 5:29 pm
- Forum: Hardware
- Topic: FPGA version
- Replies: 26
- Views: 82226
Re: FPGA version
Ok, our team almost done reverse engineering MD ASICs with it's decap. Some of team members was made a hardware level emulator and even FPGA one. Now my turn to finish this project. Finally I done with this: https://i.ibb.co.com/TYJFQ2P/IMG-1526.jpg This is Megadrive that rebuild on custom PCB with ...
- Mon Aug 07, 2023 3:32 pm
- Forum: Announcement
- Topic: Nuked MD - decap-based cycle-accurate Mega Drive emulator (software & FPGA)
- Replies: 8
- Views: 82673
- Wed Jun 21, 2023 4:26 pm
- Forum: Sound
- Topic: New Documentation: An authoritative reference on the YM2612
- Replies: 865
- Views: 2498677
Re: New Documentation: An authoritative reference on the YM2612
As I already said here we opened the MD decapping project. One of it branch is was YM2612/YM3438 FM chip. Now the new dedicated to FM chip project is started and almost die perfect verilog model is available here . Testbench: https://github.com/nukeykt/Nuked-OPN2-FPGA/raw/main/imgstore/testbench.jpg...
- Fri Apr 28, 2023 9:35 am
- Forum: Megadrive/Genesis
- Topic: M68K Bus Control and Vdp
- Replies: 26
- Views: 57012
Re: M68K Bus Control and Vdp
Okay. The decapping really confirmed the fact that the ZA[0] pin of arbiter 315-5364 is indeed a /UDS signal synchronized with the VCLK signal.
- Mon Apr 17, 2023 5:33 pm
- Forum: Hardware
- Topic: Decapping more Genesis chips
- Replies: 17
- Views: 82313
Re: Decapping more Genesis chips
Okay. We open the GIT repository about SEGA chips for everyone. The link is: https://github.com/emu-russia/SEGAChips
Now you can help to the project if you want to. Or just use our datasets in yours projects. Welcome.
Now you can help to the project if you want to. Or just use our datasets in yours projects. Welcome.
- Fri Nov 18, 2022 6:41 am
- Forum: Megadrive/Genesis
- Topic: 10 MB Flat cart using discrete logic
- Replies: 13
- Views: 41893
Re: 10 MB Flat cart using discrete logic
You done it wrong. /ASEL is /CS for whole 8MB region. I'll just leave it here. https://i.ibb.co/YhqNCb8/SEGAMAP.png Also your 2NAND logic with /ASEL and /CE0 can burn your console because there must be 2OR logic. So, if you disconnect /CE0 and connect 13 pin to 12 you'll get the right result. Yes, /...
- Thu Nov 17, 2022 5:05 pm
- Forum: Megadrive/Genesis
- Topic: 10 MB Flat cart using discrete logic
- Replies: 13
- Views: 41893
Re: 10 MB Flat cart using discrete logic
/AS didn't asserted when DMA does access. So yes, using /ASEL is a good idea.
- Sat Mar 05, 2022 5:58 am
- Forum: Hardware
- Topic: Decapping more Genesis chips
- Replies: 17
- Views: 82313
Re: Decapping more Genesis chips
Hello again. Despite all the horror that is happening in the world, we continue the decapping project of Sega Megadrive/Genesis chips. Today I'll show you some quick previews at 10x magnifying level. 315-5364 https://i.imgur.com/3fUK6nn.jpeg TA-04 https://i.imgur.com/WMumyad.jpg 315-5309 https://i.i...