BBC MIDI Interface

This was inspired by a circuit diagram reflected in the glasses of a person on the cover of a computer magazine. I extrapolated the rest of the circuit and built the interface. After several hours trawling through Stirling University library in 1990 I discovered the original schematic in the April 1987 edition of Electronics Today International. cdv1.gif  74K  Circuit diagram wdv1.gif  183K  Wiring diagram MIDIon.zip  1K  *MIDIon command MIDIon.txt  2K  *MIDIon documentation eti.gif  107K  April 1987 ETI circuit diagram emr.gif  84K  Electromusic Research circuit diagram (incomplete) m2000.gif  48K   Colin Fraser's M2000-compatible MIDI interface. SOUND can be redirected with *MIDIon 08, *MIDIon 0A or *MIDIon 0C for MIDI port 1, 2 or 3. 6850Ports  1K  6850 ACIA ports. M2000 MIDI.gif MIDI.htm notes1.gif notes2.gif pic1.jpg pic2.jpg