root@ail.co.uk (Operator) (07/19/88)
Does anybody know where I can get a Midi Interface for an Atari 800XL (Preferably in the UK). Rgds Michael Vines
foster_663@oscar.ccm.udel.edu (02/22/91)
I was wondering if any one knew of a company which makes an interface for MIDI (i.e. keyboards) conrtoll and sequencer programming. I own a 130XE and a 600XL so I could use the 'Expanded Cartridge Interface'. If no one knows where to find one, would it be possible to build one which uses the joystick ports as output/input ? I have several old ANTIC and ANALOG magazines which explain how to use the ports for some types of computer controll of external devives (such as a speech synthesizer) but none of them are very explicit. ( I did hear a company called Hybrid Arts made one ONCE but...) Any info would be most helpful Sean Foster U of Delaware (Dela WHERE?)
terpin@acsu.buffalo.edu (christophe d terpin) (02/23/91)
In article <45418@nigel.ee.udel.edu> foster_663@oscar.ccm.udel.edu writes: > I was wondering if any one knew of a company which makes an interface >for MIDI (i.e. keyboards) conrtoll and sequencer programming. I own a 130XE >and a 600XL so I could use the 'Expanded Cartridge Interface'. > If no one knows where to find one, would it be possible to build >one which uses the joystick ports as output/input ? (stuff deleted) I've built a simple MIDI interface that hooks to the SERIAL port of my Atari 800 and my CASIO CZ synth. Surprisingly, the serial port speed can be boosted up to the 31K baud rate that MIDI requires by modifying some of the POKEY registers. The interface consists of a 7404 inverter chip, a transistor, several resistors, a serial port plug, and two midi plugs. A few simple programs in assembly & basic are used to record and playback through the synthesizer. I've also written a CIO "V:" handler so that I can use it just like any other device from BASIC. If anyone's interested, I can post the schematic and software. Christopher Terpin terpin@autarch.acsu.buffalo.edu V086MVJD@UBVMSA