Search found 60 matches
- Fri Feb 19, 2016 6:35 am
- Forum: Megadrive/Genesis
- Topic: SMS direct to Genesis
- Replies: 1
- Views: 3417
Re: SMS direct to Genesis
I have gotten it to work, but only partially. It took so long because I had to enable SMS mode on my Nomad which was a nightmare. In any case, The program runs and sounds fine but the graphics are glitched. Some pixels repeat, and everything is very faded out. Is this a problem with RAM/VRAM? Do I h...
- Thu Feb 18, 2016 1:14 am
- Forum: Megadrive/Genesis
- Topic: SMS direct to Genesis
- Replies: 1
- Views: 3417
SMS direct to Genesis
Hi there, Im trying to get a simple 32Kbyte SMS ROM to run directly on the Sega Genesis. From what I understand, I need to ground B30 (!S_RESET) and if I want support for the pause button, I will need to connect B9 to VCC, B10 to GND and Pull B11 high, with a button connected between it and GND. Thi...
- Mon Dec 01, 2014 9:51 pm
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
Small update. I can now read the content of carts directly to the PC! I am simply using bit manipulation within loops and pin arrays. I need to clean up the code first and write some intelligent functions (read header first, check for cart/backwards cart, etc) and then I can write a simple GUI and m...
- Wed Nov 19, 2014 10:35 pm
- Forum: Hardware
- Topic: Current Consumption Measurements of Various Game Cartridges
- Replies: 9
- Views: 20302
- Tue Nov 18, 2014 1:01 am
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
- Mon Nov 17, 2014 4:15 am
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
- Thu Nov 13, 2014 4:14 pm
- Forum: Hardware
- Topic: Just a Simple Cartridge Port Probing Adapter
- Replies: 10
- Views: 10480
- Thu Nov 13, 2014 4:02 pm
- Forum: Hardware
- Topic: Just a Simple Cartridge Port Probing Adapter
- Replies: 10
- Views: 10480
Hey db, looks nice. Reminds me of the probe board I made for gameboy....sadly these things don't want to sell.
http://store.kitsch-bent.com/product/kk_gb_brkout
http://store.kitsch-bent.com/product/kk_gb_brkout
- Fri Oct 24, 2014 9:38 pm
- Forum: Demos
- Topic: YMDj - A Native Sega Genesis/Megadrive Music Tracker.
- Replies: 46
- Views: 36453
I have just literally registered here just for this. I absolutely love the idea of having a proper tracker that is made enterely for the hardware, within the hardware. However. I am not really happy about the UI myself, those colors and those fonts would make working on a CRT ( or most monitors, fo...
- Tue Oct 21, 2014 9:09 pm
- Forum: Demos
- Topic: YMDj - A Native Sega Genesis/Megadrive Music Tracker.
- Replies: 46
- Views: 36453
I have just literally registered here just for this. I absolutely love the idea of having a proper tracker that is made enterely for the hardware, within the hardware. However. I am not really happy about the UI myself, those colors and those fonts would make working on a CRT ( or most monitors, fo...
- Thu Oct 16, 2014 11:51 pm
- Forum: Cartridge
- Topic: Writing to 8-bit SRAM
- Replies: 6
- Views: 13183
Is that really all there is to it though? He said something about "making the !LDSW pin go low" and I know squat about that. !LDSW is the write strobe for the lower byte. Whenever there's a write that involves the low byte, this pin goes low (the ! indicates an active low signal). So it will go low...
- Thu Oct 16, 2014 3:46 am
- Forum: Cartridge
- Topic: Writing to 8-bit SRAM
- Replies: 6
- Views: 13183
Writing to 8-bit SRAM
How do I write to my SRAM? As all of you know, the SRAM in official games is connected only to the Lower byte of the data bus, and writing is enabled by making the !LDSW pin go low.
My parallel SRAM is located between 0x200000 and 0x23FFFF. please help me write bytes to it.
My parallel SRAM is located between 0x200000 and 0x23FFFF. please help me write bytes to it.
- Wed Oct 15, 2014 10:01 pm
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
Here: // Cold reset void DoColdReset() // MRES/VRES --______-- { PORTB = 0xFF; PORTD = 0x00; delay(1000); PORTD = 0x03; } // Warm reset void DoWarmReset() // VRES --______-- { PORTB = 0xFF; PORTD = 0x02; delay(100); PORTD = 0x03; } // Read word word DoReadWord(long Adr) // ASEL - $000000..$7FFFFF /...
- Wed Oct 15, 2014 12:56 pm
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
- Wed Oct 15, 2014 4:19 am
- Forum: Hardware
- Topic: Possible DIY USB Genesis/MD Reader/writer
- Replies: 11
- Views: 15954
Possible DIY USB Genesis/MD Reader/writer
I eventually want to make a fully capable reader/writer supporting many mappers, roms and rams, but for now I spent the night working on this. It is a Gen/MD cart reader and writer based on the Arduino MEGA using the EXTernal MEMory interface. I have used the exmem interface for normal external RAM ...