SD v2.2 interface

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By Erikie

Champion (324)

Аватар пользователя Erikie

19-05-2009, 14:20

I am allmost ready to have a small lot of 10 PCBs produced for a V2.2 SD interface originally designed by sharksym. There will be 2 SD slots present.
The PCB should fit in a konami size cartridge casing and this casing will not be included.
Total costs for this all will be around €42,50 excl shipping costs for a complete working PCB.
Final costs will be determined after receipt of the first lot of PCBs and getting the first one working Smile
Anyone interested in this device can either respond on this topic or send me an email (evanson (a) quicknet nl)
Be aware that it will take some time for me to get all the stuff and any updates will be posted in this thread.

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By dhau

Paragon (1570)

Аватар пользователя dhau

19-05-2009, 15:04

Wait, wait, so the PCB will have a SCC chip? Or is it replaces SCC with compatible mapper?

By Erikie

Champion (324)

Аватар пользователя Erikie

19-05-2009, 15:05

There will be no SCC chip on this PCB. Mapper logic is built in the CPLD as well as the SD logic.
Also there is no SCC music implementation present. Only SD / MMC logic.

By cax

Prophet (3736)

Аватар пользователя cax

19-05-2009, 16:31

That's the beauty of this SD/MMC card reader - you don't need to find SCC cartridge and break it, and it's cheap.
sinfox's version of SD/MMC drive with SCC chip will cost you 2 times more, and the closest similar device - CF ATA-IDE - costs more than 60 euro.

By muffie

Paladin (933)

Аватар пользователя muffie

19-05-2009, 17:13

Can I use the SD/MMC with a SCC cart on the second slot? Or would I need to adapt the .ROMS to look for the SCC on a different slot?

By dhau

Paragon (1570)

Аватар пользователя dhau

19-05-2009, 17:45

Erikie, please post some photos if possible! Also, do you think it's possible to add soldering space for optional alpha-numeric 16x2 LCD (example) in future versions? That would be kick-buttocks :)

By Erikie

Champion (324)

Аватар пользователя Erikie

19-05-2009, 18:38

this version works in any primary slot and I am still looking into modifying roms / support programs to support expanded slots too
I have no images yet but can make an image of my prototype if you would like to see that?

By Huey

Prophet (2681)

Аватар пользователя Huey

19-05-2009, 20:58

I want one! Count me in.

Another good reason to choose this SD/MMC reader is the fact that it runs on MSX1 too.

By muffie

Paladin (933)

Аватар пользователя muffie

19-05-2009, 21:31

version 2.2 is the fast one right?
I want one too. It came with plastic casing?

By Erikie

Champion (324)

Аватар пользователя Erikie

19-05-2009, 21:37

casing is not included, however I might have one lying around. But you have to drill holes etc yourself then Wink
I hope to start the order for PCBs this week or early next week

By muffie

Paladin (933)

Аватар пользователя muffie

19-05-2009, 22:14

I want a flashing blue LED on mine! Big smile
I can handle the holes!!!

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