Bc2000 (for the BCF2000 & BCR2000)

--- In bc2000@yahoogroups.com, "gil.brand33" <gil.brand33@...> wrote:
> I would like (if possible) to configure an _existing _BCR preset to send 
> three SysEx messages in a _single press_ of button #4.
> 
> 
> If (Button #4 = *Off*) then send:/The *default* state
> 
> F0 01 20 01 2A 33 02 00 F7/Set value of x02 to parameter x33
> 
> F0 01 20 01 2A 35 01 00 F7/Set value of x01 to parameter x35
> 
> F0 01 20 01 2A 38 01 00 F7/Set value of x01 to parameter x38
> 
> ------------------------------------------------------------------------------------- 
> 
> 
> If (Button #4 = *On*) then send:
> 
> F0 01 20 01 2A 33 03 00 F7/Set value of x03 to parameter x33
> 
> F0 01 20 01 2A 35 00 00 F7/Set value of x00 to parameter x35
> 
> F0 01 20 01 2A 38 02 00 F7/Set value of x02 to parameter x38
> 
> Is it possible, or do I have to use extra buttons for such a task?

It can be done in one button, but it's very tricky, because of a bug in the BCR affecting SysEx messages in ".tx" statements.
(See BCMI ("BC MIDI Implementation.pdf"), sections 14.6.3/4).

In any case the script below circumvents this bug:

$rev R1
$button 4
  .showvalue on
  .default 2
  .mode toggle
  .minmax 2 3
  .tx $F0 $01 $20 $01 $2A $33 val $00 $F7
  .tx $F0 $01 $20 $01 $2A $35 ifn $01 $00 $F7 ifp $00 $00 $F7
  .tx $F0 $01 $20 $01 $2A $38 ifn $01 $00 $F7 ifp $02 $00 $F7
$end

> In any case,
> - What "*.mode*" should I use for the button(s)?

I think you want "toggle", as used above.
See BCMI section 15.9.

> - Can I, and should I omit the "*.minmax*" & "*.default*" macros for 
> that purpose?

".minmax" is essential.

I'm never sure myself about ".default".
Maybe you can try to make sense of what BCMI section 14.3 says about it...

> After sending the above code (completed of course) to the BCR through 
> the "Script Editor", should I just press "Store" twice in order to write 
> the changes to my current preset?
> 
> Is there anything else I should do before/after sending the script?

Maybe Royce can answer these questions.

Hope this helps,
Mark.