The hardware may be re-arranged slightly between now and the final board layout, but Orpheus II contains exactly the same intell […]
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underthebridge wrote on 2022-07-19, 14:39:
To be clear- is the MPU intelligent mode like the PCMidi card and does it use the musicquest drivers?
The hardware may be re-arranged slightly between now and the final board layout, but Orpheus II contains exactly the same intelligent-mode PCMIDI hardware as the stand-alone board and Orpheus I. As always, you have the choice between the standard Roland driver or the Music Quest version. They haven't made any official announcement, that I am aware of, stating whether the intelligent-mode hardware will be standard equipment or optional, as on Orpheus I, particularly given the problems with parts availability.
underthebridge wrote on 2022-07-19, 14:39:
Say at a given time I wanted to, for instance, use just GUS + Crystal part, or GUS + OPL3, or GUS by itself to save resources. Would it conflict if driver is disabled in windows?
As far as I'm aware, the PCMIDI portion cannot be disabled. It is not managed via Plug and Play, and occupies either I/O base 300H or 330H, depending on jumper settings (disabled is not one of the available options). Similarly, in order for OPL3 to work, at least part of the CS4237 hardware must be configured and enabled on the bus. InterWave features without the CS4237 being active full-time should be possible, but is not currently supported by any initialisation software. Currently, the internal, experimental version of ORPHINIT is the only software that has any sane level of support for Orpheus II. These are features that I might consider for a future version, but it can start to get complicated, so I'm not making any promises.
If anyone else decides to implement support for the new card, and which features they support, is entirely up to them. As of now, there are no other options; that is something that potential buyers should know.
Under Windows, you won't have the same level of control. I don't think anyone has experimented in detail with which parts can be disabled without affecting performance, compatibility or stability. However, "disabling" the PCMIDI driver will not cause the hardware to become inactive.