for MegaDrive/Genesis
| Address | Type | Details |
|---|---|---|
| 0xA12010 | command | see section commands |
| 0xA12011 | argument | argument for each command |
| 0xA1201F | command clock | increment it for command execution |
| 0xA12020 | mcd status | 0-ready, 1-init, 2-cmd busy |
| Code | Type | Arguments | Details |
|---|---|---|---|
| 0x11 | PLAY | decimal no. of track (1-99) | playback will be stopped in the end of track |
| 0x12 | PLAY LOOP | decimal no. of track (1-99) | playback will restart the track when end is reached |
| 0x13 | PAUSE | vol fading time. 1/75 of sec (75 equal to 1 sec) instant stop if 0 |
pause playback |
| 0x14 | RESUME | none | resume playback |
| 0x15 | VOL | volume 0-255 | set cdda volume |
| 0x16 | NOSEEK | 0-on(default state), 1-off(no seek delays) |
seek time emulation switch |
| 0x1A | PLAYOF | #1 = decimal no. of track (1-99) #2 = offset in sectors from the start of the track to apply when looping |
play cdda track and loop from specified sector offset |
- Include msu-drv.bin in your binary and call it as function for initialization.
- Function will return 0 if driver loaded successfully or 1 if MCD hardware not detected.
- Driver ready for commands processing when 0xA12020 sets to 0
| content | Details |
|---|---|
| msu-drv.bin | compiled driver binary |
| msu-md-drv | driver sources |
| msu-md-sample | driver usage sample |
support files and firmware download | buy
- Cyclone IV FPGA
- 16MB PSRAM and 1MB SRAM memory
- High quality 6-layers PCB with hard gold surface finish
- Supported ROM formats: Genesis, 32X[1], Mega-CD, Master System, NES[2]
- Ram cart for Mega-CD
- CD bios swap function turns off region locks for Mega-CD games
- Hardware MegaKey turns off region locks for Genesis games
- YM2413 core for Master System games
- SVP core support
- Pier Solar mapper support
- In-game menu. You can save game or return to system menu without physical reset
- In-game menu supported for Genesis and Master System modes
- Full EEPROM saves support
- Real time clock for logging date and time of saves
- ARM based 32bit I/O co-processor for SD and USB operations acceleration
- Up to 1024 files per folder or unlimited if file sorting is disabled
- Multi slot save states. 100 save states slots for each game
- Instant ROM loading
- USB port for development and system update without removing SD card
- Battery voltage monitoring. Battery can be replaced in time if it runs dry
- Game Genie cheats support
[1] 32X games require 32X addon to be attached.
[2] NES core has limited compatibility. Refer to user manual for details.
NES core currently supported only for NTSC systems.
For Mega-SG "Zero lag" option should be turned off for NES games (accurate Genesis timings required).