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Hardware - MMC Drive Interface...

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Author

MMC Drive Interface...

usuario_msx2
msx freak
Posts: 150
Posted: October 12 2005, 09:34   
Yes, you must go to page 1(this post) you can see schematic (SCC FlashRom) you need:

74LS30,
74LS138,
74LS74A,
74LS125A,
Atmel AT29c040A(512kb flash)
2 100k resistors

Best regards
msx_pc
msx novice
Posts: 26
Posted: February 06 2006, 10:56   
Hello..im wondering if the mmc drive also working in msx usb gamereader to load some applications as a normal drive.

who can confirm that to me or tried also before?
sharksym
msx novice
Posts: 20
Posted: April 18 2007, 18:22   
Hello~

I have released new MMC/SD Disk Bios v1.64.
If you intrested, please check below file.
http://my.dreamwiz.com/sharksym/MMC_Drive.zip

Many functions are added and improved.
Please, see history.txt.

--------------------------------------------------
MMC/SD Disk Interface Cartridge v1.64 (2004,2007)
By Yeongman Seo (E-mail:sharksym@hitel.net)
--------------------------------------------------

2007.04.19 v1.64
-Add SymbOS Disk driver routine
-Change Read routine (speed optimized)

2007.03.06 v1.61
-Fix Format-Routine Bug

2007.03.04 v1.60
-Add Drive C: for System-Disk only
-Add DiskMan.exe for Windows

2007.02.13 v1.50
-Fix Diskman.com to allocate more than 256 Blocks.

2007.02.09 v1.50
-Add SHIFT Key force to Boot directly.
(Koei games runs with CTRL+SHIFT Key)

2007.02.08 v1.40
-Change Base DiskROM
-Fix Slot Select Bug
-Fix for FEEDBACK

2007.01.08 v1.20
-Add Flashrom Disk for DOS1
(MMCDISK1.ROM for DOS1 system
MMCDISK2.ROM for DOS2 system)
-System Disk can be settup upto 23.0MB disk
-Add DSKCOPY.COM
*.dsk file can be copied to MMC/SD block
You may enjoy it without additional FDD
-Some Bug fixed at Diskman.com
-INIT_MMC.COM & XCHG_MMC.COM are renamed
to INITMMC.COM & XCHGMMC.COM
-Chage Disk access routine for faster speed in DOS2
(DISKMAN.COM, ATLOAD.COM, DSKCOPY.COM)
-[STOP] Key can be used for Multi-Disk changing.

2004.10.26 v1.10
-Support Disk 7 Type
360KB,720KB,1.44MB,2.88MB,5.76MB,11.5MB,23.0MB
-Support Multi-DIsk of 9disks
-Add [View MMC Area] Menu
-Add [INIT_MMC.COM] for Install
-Add & Change Schematic for faster speed
-Change Install.bat, Autoexec.bat
-Change Multi-Disk changer
-Fix ROM-Disk Size (480KB)


2004.09.14 v1.00
-First Release
-Support 2DD(720KB) only
-XCHG_MMC.COM : MMC Exchanger
-DISKMAN.COM : MMC Disk Manager
-ATLOAD.COM : Flash Downloader


sharksym
msx novice
Posts: 20
Posted: April 18 2007, 18:53   
SymbOS is running on MSXturboR with MMC/SD Drive.


cax

msx professional
Posts: 1021
Posted: April 19 2007, 15:48   
Cool ! Would be nice if somebody will produce such a device from the customer's cartridge.
My soldering skills are not good enough to build it.
jltursan
online
msx professional
Posts: 887
Posted: April 19 2007, 16:28   
I'm not either good at soldering . Would it be possible for someone to get the responsability to build this hardware?. If I'm not wrong, it's the first "alien" hardware to be supported under SymbOS providing its own driver
SaebaMSX
msx freak
Posts: 253
Posted: April 19 2007, 17:37   
The LPE-MMC is based on this hardware design, AFAIK. In fact I own it, I think Sapphire brought me it from Madrid years ago.
Sd-Snatcher
msx freak
Posts: 255
Posted: April 19 2007, 22:17   
Could be posible to work with SDIO cards?

Now i suposse it works in SPI mode. true?
nikodr
msx addict
Posts: 491
Posted: April 20 2007, 12:39   
I have a f1 spirit scc,but to me it seems a little complicated to do alone and i am afraid i would kill a nice scc cartridge.Congratulations to the person who made this possible though!2 thumbs up.However because i lack the needed skills to do it i will probably go for a sunrise cartridge.

Best
cax

msx professional
Posts: 1021
Posted: May 02 2007, 11:18   
So, is there anybody who'd like to make some money by doing modding for SCC cartridge owners ?
nikodr
msx addict
Posts: 491
Posted: May 02 2007, 11:52   
Anyone?
SaebaMSX
msx freak
Posts: 253
Posted: May 02 2007, 19:42   
I talked some years ago with usuario_msx2 in a Barcelona MSX meeting about making an SCC+MMC cart. He made it by himself but thought it was better not to do it since it is too much complicated (too many small cables together ). So it is a bit insane to create it, I think nobody will do it for you. Instead of it you could get an MMC reader from Leonardo Padial (it is based on that Sharksym design). It is not expensive and all these cables are gone since it is built in CPLD. OK, you won't have an SCC there... but who cares?
novi^skt
msx friend
Posts: 7
Posted: May 17 2007, 19:44   
hi is possible upload this img? the link is broken...
thanks!

Quote:

A friend from Spain built this item as well







Prodatron
msx master
Posts: 1110
Posted: May 17 2007, 21:46   
@Sharksym: Thanx a lot for the drivers. Great work! Sorry, didn't read this before, that they are available for download. If it's ok for you, I would like to add them to the download page of the SymbOS site?
sharksym
msx novice
Posts: 20
Posted: June 18 2008, 18:52   
Hello~
Is there some one still has interests on this device?
Here's latest BIOS v3.10.
http://my.dreamwiz.com/sharksym/MMC_Drive.zip

Please, check History & Readme files for more information.

--------------------------------------------------
MMC/SD Drive v3.10 (2004,2008)
By Yeongman Seo (E-mail:sharksym@hitel.net)
--------------------------------------------------

This is the MMC/SD Disk interface cartridge.
It works as External Disk Device.
It supports built-in Flash-ROM disk & two MMC/SD Disk.
Flash-ROM disk is rewritable as normal FDD works.
DOS2 v2.20 Kernel is integrated.
BASIC'n v2.1 is integrated.
FAT16 is supported by Okei's FAT16 driver.
SymbOS driver is supported.
BIOS support both Hardware of V1 & V2.


The BIOS ROM file consists of:
- DISK Driver with DOS v1 Kernel (16KB),
- DISK Driver with DOS v2.20 Kernel (64KB),
- BASIC'n v2.1 (16KB)
- FlashROM and MMC/SD Driver (32KB),
- Flash-ROM Disk-Image (384KB).
Total 512KB in size.


 
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