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Todd
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MegaSD Firmware releases

17 Jul 2019, 15:08

This topic is for people to keep track of new firmware releases and fixes/changes to the MegaSD.

Not all firmwares are released to the public. Some are internal, some are shared with testers in our Discord. However I like to document them here for historical and information purposes. Public releases will be described as such.


MegaSD firmware version 1.01R10 - Unreleased to Public

MEGACD
- Improve detection of actual megacd. It will now try to write and read from registers, and ignore the peripheral flag.
- Add option to enable Low Pass filter to PCM output, to match actual megacd audio.
- Add option to enable CDDA Treble boost filter to CDDA, to match actual megacd audio.
- Add option to simulate exact megacd Graphics processing chip speed, to match actual megacd framerate in some games.
- Add support to load a bios from the SD when a real megacd is connected. It also simulates a RAM cart so saves can be
transferred from a real megacd to megasd.
- Add "Switch!" to games requiring seek time emulation.

MD
- Fix in game menu not working in Castlevania
- Add SuperFighterTeam mappers

SMS
- Increase FM volume

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Re: MegaSD Firmware releases

17 Jul 2019, 21:20

New MegaSD firmware version 1.01R11 - Unreleased to Public

MEGACD
- Add "Panic!" to games with forced seek emulation

MD
- Fix Psy-O-Blade backup RAM mapping
- Fix "The Story of Thor"/"Beyond Oasis" and "Phantasy Star IV" backup RAM not enabled.

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Re: MegaSD Firmware releases

19 Jul 2019, 16:18

MegaSD Firmware 1.01R12


MD
- Use large rom mapper by default if roms are >4MB (and they don't use any special mapper)
- Includes fix for Bad Apple demo

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Re: MegaSD Firmware releases

30 Jul 2019, 14:56

Firmware 1.02R01 - Unreleased to Public

- Fix sprites not appearing in some games until unpausing if restoring to paused state
- Add Virtua Racing. SSP160x core used with permisson from Sergey Dvodnenko

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Re: MegaSD Firmware releases

04 Aug 2019, 16:35

New MegaSD firmware 1.02R02 - Unreleased to Public

- Add Reset to defaults option
- Fix backup ram not working properly when using the enhanced SSF2 mapper

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Re: MegaSD Firmware releases

07 Aug 2019, 15:16

New MegaSD Firmware 1.02R03 - Unreleased to Public

- Fix The Terminator (and probably others) not detecting the end of track when playing the last track of the CD
- Megadrive Games with save RAM overlaying ROM area will now have save RAM enabled by default, instead of requiring whitelisting

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Re: MegaSD Firmware releases

12 Aug 2019, 17:29

New MegaSD Firmware 1.02R04 - Unreleased to Public

- Fix Final fight freezing randomly and on continue screen.
- Fix Corpse killer hang when skipping cutscenes.
- Fix SMS bankswitching in some console models
- Fix Make My Video audio/video desync and glitches
- Fix some pier solar reprints not working in MD+ mode
- Fix Flux not detecting megacd in MegaSG console

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Re: MegaSD Firmware releases

17 Aug 2019, 16:09

MegaSD Firmware 1.02 R04 Public Release!

- Fix sprites not appearing in some games until unpausing if restoring to paused state
- Add Virtua Racing. SSP160x core used with permisson from Sergey Dvodnenko
- Add Reset to defaults option
- Fix backup ram not working properly when using the enhanced SSF2 mapper
- Fix The Terminator (and probably others) not detecting the end of track when playing the last track of the CD
- Megadrive Games with save RAM overlaying ROM area will now have save RAM enabled by default, instead of requiring whitelisting
- Fix Final fight freezing randomly and on continue screen.
- Fix Corpse killer hang when skipping cutscenes.
- Fix SMS bankswitching in some console models
- Fix Make My Video audio/video desync and glitches
- Fix some pier solar reprints not working in MD+ mode
- Fix Flux not detecting megacd in MegaSG console


HOW TO UPDATE

Place the firmware file in the SDCard and boot MegaSD. After the MegaSD splash, a message will pop up notifying a new software update is available. Press A button to update or B button to continue to the menu.
While updating DON'T TURN YOUR CONSOLE OFF. It will take some time depending on the systems needing update (up to 1 minute), you'll see progress bars to ensure it's working properly.


You can find this in the Downloads section: https://downloads.terraonion.com/login

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Re: MegaSD Firmware releases

30 Aug 2019, 17:11

MegaSD Firmware 1.03 R04 - Testers release

- Support importing raw saves from other flashcarts and from MegaSG. Just rename them to MegaSD save name in the BUP folder.
- Add RAM cheats for CD games
- Add CD+G support. Supports subchannel data in .SUB files or embedded in .BIN files (CDG track type) with either scrambled or unscrambled subchannel data.
- Add Mode 2 Form 2 sectors support to CDC. Fixes wonder library sound clips in Grolier encyclopedia.
- Allow selection of which BIOS region to use when playing Audio CD and MD+ games.
- Allow loading a BIOS for SMS games. Just place the bios in the BIOS folder, named BIOS.SMS . Running BIOS-less is still recommended as MegaSD has its own initializing code.
- Prepare firmware to support game screenshots and info
- Fix American Laser Games PCM audio channels playing at wrong times.
- Fix PCM audio channels looping not generating the proper addresses. Fixes Snatcher long random transition delays.
- Fix auto region patch priorities.
- Fix "3 ninjas kick back" black screen after game over
- Fix some transparent pixels in the bottom right TV showing pixels of the game names
- Fix Wonder Boy 3 SMS FM sound not working. Region patching will still be needed for non japanese consoles.
- Add forced seek time to more Wolfteam games

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Re: MegaSD Firmware releases

03 Sep 2019, 16:19

MegaSD Firmware 1.03 R06 - Testers release

- Detect gamepads plugged after the megasd menu has started. This fixes some gamepad converters.
- Adds SRAM for some Megadrive games without save RAM header
- Fixes in game menu buttons not working in some Megadrive games (Batman Returns)
- Fix Escape 2042 not booting in MD+ mode.

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