Conference napalm::commusic_v1

2475.0. "ATARI - MIDI - STOS" by OPG::CHRIS (Capacity! What Capacity ?) Tue Oct 23 1990 09:42

    
    	Hello,
    
    		Can anyone help ?
    
    	I am trying the communicate with MIDI equipment using an
    	Atari 520 STFM and a Casio MT-240.
    
    	I am using the STOS programming langauage and I am trying to
    	output to the Casio the notes it can play, i.e.,
    
    
    	1000 OPEN #1, "MIDI"
    	1100 FOR A=0 TO 127
    	1110 PRINT #1,CHR$(144)+CHR$(A)+CHR$(64)
    	1120 WAIT 10
    	1130 NEXT A
    
    	I run this and all that happens is that the same note plays
    	each time.
    
    	I have also tried just sending the CHR$(144) which means note
    	on and that plays one of two notes each time I send it.
    
    	Can anyone enlighten me on what I am doing wrong please ?
    
    
    
    	Chris
    
    	Notes: chrs$(144) = Channel 1 note on
    	       chrs$(A) = Note Number
    	       chrs$(64) = Velocity
    

    Maybe you need to send a NOTE OFF after each note ON that you send???
    
    -Jim (just guessing ...)
    
    

    Agree with -1, should send note off after note on (or note on with
    velocity of 0, depending on SGU)
    
    You may not have to keep sending the note on or note off as some units
    keep whats called "ru nning status" but I'd send them anyway.
    
    I also think tht wait 10 would be far to fast..I don'tknow the ATARI
    though so I could be wrong.
    
    Ken
    

    Thanks for the info I will try.  Thw wait 10 is 10x 1/50 of a second.
    
    
    Chris

    You will probably need a MUCH longer wait in between the note on and
    note-off else you'll probably only get blips.
    
    Ken