Search found 6 matches
- Thu Aug 29, 2019 12:01 pm
- Forum: Megadrive/Genesis
- Topic: Sega Tech Docs archive
- Replies: 26
- Views: 381773
Re: Sega Tech Docs archive
Microtec manuals for assembler and C compiler: https://www.yumpu.com/en/document/view/9309425/assembler-linker-librarian https://www.yumpu.com/en/document/view/15619344/c-compiler-mikrofh-konstanzde Mirrored the PDF files if you don't feel like registering: https://www.dropbox.com/s/p6bu5gczw06s68q/...
- Thu May 02, 2019 4:03 pm
- Forum: Cartridge
- Topic: Size limits
- Replies: 36
- Views: 50462
Re: Size limits
Isn't 32X just masking this range? A130EC read (also write?) will just never make it to the cartridge, right?
BTW does SSF2 mapper return something when reading its range?
BTW does SSF2 mapper return something when reading its range?
- Thu May 02, 2019 3:52 pm
- Forum: Cartridge
- Topic: Size limits
- Replies: 36
- Views: 50462
Re: Size limits
What's going on exactly on A130EC with 32X? Had a quick look online, games do read there for a keyword (so effectively EC-EF), but mapper is only dealing with writes, not reads.I am missing something there ? :? Also are the standard board holes exact potitions available somewhere? Thoses are quite o...
- Thu May 02, 2019 1:02 pm
- Forum: Cartridge
- Topic: Size limits
- Replies: 36
- Views: 50462
Re: Size limits
Yeah it looks like it's possible with the same CPLD chip (100% macrocell & pin usage, I guess it was made for the task heh). It might however not 100% replicate the SEGA mapper as there's not enough pins to catch A4-A7. This means writing 0xA13003 will be the same effect as writing 0xA130F3. Not a h...
- Wed May 01, 2019 2:44 pm
- Forum: Cartridge
- Topic: Size limits
- Replies: 36
- Views: 50462
Re: Size limits
Happen to be disgressing a bit from NeoGeo lately and I did prototype such a Gb card for the megadrive. Wasn't aware of the !time signal back then so this test card is designed to switch banks by writing to the ROM region (0x0-0x3fffff). Was able to barely fit 7 selectable windows in CPLD, so it can...
- Wed May 01, 2019 9:35 am
- Forum: Cartridge
- Topic: Sega Genesis > Arduino Comunication
- Replies: 4
- Views: 9463
Re: Sega Genesis > Arduino Comunication
It is fairly simple if you only need genesis > arduino communication (not bidirectionnal) You need two things wired to arduino: - a decoded write signal. A couple basic logic gates will do that for you, setup depends on the signal/memory range you are looking for. - data bus. Obvious reason, wire 8 ...