Good spot Shawn, Yes the YMF262 was used on many incarnations of the SoundBlaster board for supporting the Adlib sound standard which is FM synthesis based. The SoundBlaster standard on the other hand is sample based and requires the use of DMA transfers, we do not yet have DMA on the S100 bus so I didn't go down that route choosing rather to concentrate on something more easily achievable.
regards David On Sunday, May 31, 2015 at 6:48:56 PM UTC+1, Kryoclasm (Shawn) wrote: > That is the chip from the old Soundblaster isn't it? > How about calling it the "S-100 GAME BLASTER"? > > Very good work on the board. I'm sure I won't be ready to use one for many > moons. :( > > Shawn > > On Sunday, May 31, 2015 at 8:07:32 AM UTC-8, David Fry wrote: >> >> Hi Everyone, >> >> I recently mentioned in a recent post that I would be announcing a >> S100 board that I have been working on over the last five months or so. >> I have not yet come up with any name for the board so I currently refer >> to it by it's functionality which is aimed to add some multimedia >> functionality to the S100 PC platform. >> >> Basically the board provides Yamaha OPL3 (Adlib) sound card function, A >> IBM compatible Joystick/Game port, and a PC compatible NS16550 serial port. >> >> Each circuit function can be addressed via separate and independent 8 OR >> 16 bit port addresses so 8/16 bit port addresses do not have to be related >> to one another, >> in other words if the 16550 serial port is mapped at 16 bit port 03F8H >> the 8 bit mapping doesn't have to be F8H it can be some other address of >> your choice. >> >> I have completed and built the first prototype version as shown in the >> picture attached and I am pleased to announce that after correcting a few >> bugs that slipped through >> the net, the board seems to work as intended. My S100 system now has OPL3 >> Adlib sound under MSDOS (Mario game), and the joystick port and serial port >> have been tested >> by writing software under the Z80 platform (need to start learning x86 >> soon). >> >> The real purpose of this post is to gauge what level of interest there >> may be for this board in anticipation of a production release possibly in >> the later part of this year (2015), and also >> to extend an opportunity for a number of the more technical members to >> participate in a second prototype either by building up a board or by >> circuit analysis. >> >> I have uploaded the KiCad files (OPL3 Proto V1.zip) and _OPL3GAL.PDS >> file (for the GAL) to my N8VEM user folder for constructive >> comment/suggestions. >> http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=David%20Fry >> >> If for any reason you cannot get to these files email me off board and I >> will forward them to you. >> >> Best Regards >> >> David Fry >> >> >> -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
