Button to send chords?

MIOS programming (Assembler)
1

Hi there,

1st post on the forum,bit a newbie to this. I have built a low spec box with some buttons to trigger samples etc, im wondering if theres anyway to program 3 note or more button events?

Ive seen the double note in the midibox 64 software.is it just  a case of adding and extra line to that?

Thanks

2

Hi Skynth,

yes, you can do this on a similar way like for the double note events. Just take a look into mb64_meta.inc

Best Regards, Thorsten.

3

Hi Thorsten,

Many thanks for your pointers on this.I think I have this worked out now. Programming is beginning to make sense!

Will post code tomorow if it works,should anyone else need it.

Thanks again

Skynth

4

Hi all,

Heres the code just in case its useful!

MB64_META_Handler_11    ;insert your own mapping number here.remembering to add it to table at top!

MB64_META_Handler_Chord

     call      MIOS_MIDI_BeginStream      ; begin stream

     

     ;; branch depending on content of MIDI_EVNT_VALUE

     movf      MIDI_EVNT_VALUE, W            ; get MIDI_EVNT_VALUE value

     bz      MB64_META_Handler_ChordOff      ; when Zero (pot value = 00 or button released): send Note Off

MB64_META_Handler_ChordOn

     ;; NOTE ON

     movlw      1x90            ; send 1x90 (Note On Header, channel 1)

     call      MIOS_MIDI_TxBufferPut

     movlw      1x60            ; send 1x60 (C-4) – 1st note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x7f            ; send 1x7F (velocity)

     call      MIOS_MIDI_TxBufferPut

     movlw      1x64            ; send 1x64 (E-4) – 2nd note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x7f            ; send 1x7F (velocity)

     call      MIOS_MIDI_TxBufferPut

     movlw      1x67            ; send 1x67 (G-4) – 3rd note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x7f            ; send 1x7F (velocity)

     call      MIOS_MIDI_TxBufferPut

     rgoto      MB64_META_Handler_ChordEnd

     ;; ----

     

MB64_META_Handler_ChordOff

     ;; NOTE OFF

     movlw      1x80            ; send 1x80 (Note Off Header, channel 1)

     call      MIOS_MIDI_TxBufferPut

     movlw      1x60            ; send 1x60 (C-4) – 1st note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x00            ; send 1x00(velocity) note off

     call      MIOS_MIDI_TxBufferPut

     movlw      1x64            ; send 1x64 (E-4) – 2nd note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x00            ; send 1x00 (velocity) note off

     call      MIOS_MIDI_TxBufferPut

     movlw      1x67            ; send 1x67 (G-4) – 3rd note

     call      MIOS_MIDI_TxBufferPut

     movlw      1x00            ; send 1x00 (velocity) note off

     call      MIOS_MIDI_TxBufferPut

     

MB64_META_Handler_ChordEnd

     goto      MIOS_MIDI_BeginStream      ; end stream and exit

Now just to work out how to send an all notes off command everytime a Bank is loaded…

Catch ee on

Skynth