MSX-Audio BIOS upgrade design released

by sd_snatcher on 09-04-2009, 14:32
Topic: Hardware

Do you remember the MSX-Audio BIOS upgrade for the Philips Music Module? MSXPro kindly released the board design, its schematics and install instructions to the MSX community for free. As you can see in the pictures of the article, it's the cleanest and most elegant way to upgrade your Music Module to support 256KB SampleRAM and the MSX-Audio BIOS.

This board even supports up to 64KB of non mapped plain ROM and 16KB of Work RAM, to allow future expansions of the MSX-Audio BIOS. Maybe MIDI support will be possible in the future too. The original BIOS upgrade article has also been updated for better clarity and now contains three versions of the BIOS.

Relevant link: The MSX Pro website in Portuguese (Google translation)

Comments (9)

By Sander

Founder (1871)

Sander's picture

09-04-2009, 15:39

Excellent news! Is it possible to obtain this kit with all components installed?


Enlighted (5951)

NYYRIKKI's picture

09-04-2009, 21:05

*sigh* Unfortunately I also belong to the group, who do feel the need, but who do not have the needed components, EPROM programmers etc. lying around... Sad

I also hope someone will start to sell this as ready assembed PCB or at least as a DIY-kit with ready programmed EPROM & other needed components packed together.

By Ivan

Ascended (9326)

Ivan's picture

10-04-2009, 10:59

Direct link to the article

Google translation of the article
Link updated.

By Yukio

Paragon (1540)

Yukio's picture

10-04-2009, 12:38

There are third part services for programming EPROM's, people just need to give the ROM image files on floppy disks. I liked the pictures of the Y8950 and the information about the 44256 (256K x 4bits) memory chips.

By OeiOeiVogeltje

Paragon (1409)

OeiOeiVogeltje's picture

18-04-2009, 11:45

my eprom programmer still doesnt work (im probably doing somthing wrong myself)
but making a PCB....

anyone here who can make such thing???

the rest i can do myself (as soon as i found out whats wrong with Willem (the programmer))

By Yukio

Paragon (1540)

Yukio's picture

18-04-2009, 12:50

You are using the simplest programmer. Did you erased the EPROM ?If it is a used EPROM, some weeks of sun light will do the job ...

By OeiOeiVogeltje

Paragon (1409)

OeiOeiVogeltje's picture

18-04-2009, 15:16

its not the simplest

it seems i cant "read" eproms

havent tried burning yet

its being looked at right now

By Yukio

Paragon (1540)

Yukio's picture

19-04-2009, 01:10

Ok, maybe one of the simplest programmers. Not the simplest.

There are commercial PROM/ROM chips with inverted pins, but I do not believe that it is the case. The programmer's should be able to read and write to almost any form of EPROM/PROM chip without problem, maybe some chips could be a little old ...