Producing the FRS MSX Audio extension board for Music Module

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By DD

Expert (88)

Аватар пользователя DD

19-05-2009, 09:41

Sorry, i don't remember, does the original Toshiba audio module have samples in e.g. Moonblaster, i mean playing back samples? I seem to remember that there was no sample memory at all in the Toshiba, maybe that's the first upgrade sd_snatcher is talking about. I don't have schematics of the Toshiba version.

By Manuel

Ascended (19273)

Аватар пользователя Manuel

19-05-2009, 09:51

DD, yes, that's the first upgrade. He directly goes for 256kB though Smile (And why not...)

By Sander

Founder (1871)

Аватар пользователя Sander

19-05-2009, 22:16

DD: the schematics of the Toshiba version are here: http://msx.retro8bits.com/msxarchives/toshibahx900upgrades.zip

It doesn't uses a print! It uses a SIMM30 module for memory.

By sunrise

Paragon (1091)

Аватар пользователя sunrise

20-05-2009, 07:02

@sander: Could you give an answer to my questions although one is answered indirectly via your answer to DD

By Sander

Founder (1871)

Аватар пользователя Sander

20-05-2009, 22:36

From the looks of it, this board only fits a Music Module. There's also other wiring needed and I don't think the toshiba will have enough vertical space inside to facilitate the extension board.
Philips:
img35.imageshack.us/img35/2870/filippo1.jpg
img35.imageshack.us/img35/7599/filippo2.jpg
Toshiba:
img35.imageshack.us/img35/8196/tostibah.jpg

By OeiOeiVogeltje

Paragon (1426)

Аватар пользователя OeiOeiVogeltje

21-05-2009, 11:51

the eprom on that thing is a 27c256
i have lots of those here.... (the 27c512 that are in the Toshiba too)

By sd_snatcher

Prophet (3642)

Аватар пользователя sd_snatcher

29-05-2009, 02:48

the eprom on that thing is a 27c256
i have lots of those here.... (the 27c512 that are in the Toshiba too)

In fact, the better choice is:

- 27C256 for the Toshiba
- 27C512 for the Music Module

By sd_snatcher

Prophet (3642)

Аватар пользователя sd_snatcher

17-12-2009, 21:24

Does anyone know how stable that latest msx audio bios from FRS is?

Have a look at this thread.

By Sander

Founder (1871)

Аватар пользователя Sander

17-12-2009, 21:55

Which one is newer? The beta rom from the frs site, or the link in that old thread (nms 1205 rom)

By sd_snatcher

Prophet (3642)

Аватар пользователя sd_snatcher

17-12-2009, 22:21

Which one is newer? The beta rom from the frs site, or the link in that old thread (nms 1205 rom)

The 1.2pre4 beta is newer.

The one on the old thread was the original 1.0 version, with a small patch to skip the I/O port configuration and allow it to run on the NMS-1205. (The FS-CA1 had reconfigurable I/O ports, while both the NMS-1205 and the HX-MU900 have fixed I/O ports).

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