This repo is no longer maintained. Better DosBox support for the OPL2 Audio Board and OPL3 Duo! has been added to DosBox-X

See https://dosbox-x.com/ and https://github.com/joncampbell123/dosbox-x

For configuration in DosBox-X see https://github.com/DhrBaksteen/ArduinoOPL2/wiki/DosBox-X-configuration

DosBox for OPL2 Audio Board

This repository contains a version of DosBox SVN 0.74 that supports OPL2 passthrough to the OPL2 Audio Board over serial port. Install the accompanying Arduino sketch on your Arduino and enjoy real OPL2 audio from DosBox!

• For build instructions see https://www.dosbox.com/wiki/BuildingDOSBox
• To get the OPL2 Audio Board library go to https://github.com/DhrBaksteen/ArduinoOPL2
• More info on the OPL2 Audio Board can be found here: https://www.tindie.com/products/DhrBaksteen/opl2-audio-board/

Configuration

After compiling the source run DosBox to create a default config file dosbox-OPL2 Audio Board.conf. The configuration for the OPL2 Audio Board is part of the [sblaster] section. Set oplemu to opl2board and oplport to the port where your Arduino + OPL2 board is connected. For example COM4. By setting oplemu=opl2board the oplmode will automatically be set to opl2 no matter what value you set.