Bc2000 (for the BCF2000 & BCR2000)

--- In bc2000@yahoogroups.com, "gil.brand33" <gil.brand33@...> wrote:
> Regarding the usage of "val" in a ".tx" command:
> I want to configure an encoder to send values of 30-250:
> $encoder 1
> .minmax 30 250
> .default 60
> .tx $F0 $01 $20 $01 $2A $42 <val> $F7
> .resolution 96 96 96 96
> .showvalue on
> .mode bar
> 
> For my synth, "val" here should be 2-Byte long, for example:
> If decimal value is 49 --> hex value is x31 and the ".tx" line (after splitting
> MSB & LSB), should actually be:
> 
> .tx $F0 $01 $20 $01 $2A $42 $01 $03 $F7
> 
 
> For value of 164, which in hex is xA4, same line should be:
> 
> .tx $F0 $01 $20 $01 $2A $42 $04 $0A $F7
> 
> So, I need to split the "val" nibbles (val[0:7] and val[8:15]) and "pad" them with "zeroes"...
>

If I understand your intention correctly, you want to send the enocder value's bits 0-3 ("low nibble") as bits 0-3 of the first byte, and its bits 4-7 ("high nibble") as bits 0-3 of the second byte, with in both cases the output byte's bits 4-7 being 0.

> Would the following syntax work:
> .tx $F0 $01 $20 $01 $2A $42 $0val0.7 $0val8.15 $F7

I've never tried this, but I can't imagine that these concatenations of $0 plus "val..." work.
In any case you can't use "val0.7" or "val8.15"; these identifiers simply don't exist in BCL. (See BCMI section 14.6.1.)

Instead, try this:
.tx $F0 $01 $20 $01 $2A $42 val0.3 val4.7 $F7
Doesn't this achieve exactly what you want?

Hope this helps,
Mark.