PCM90 and sysex

Although I probably can't offer any more expertise than you have already, this would be useful for me and my clients, I'm interested in the process, and happy to help test or whatever else an end-user could do.

Best of luck pushing ahead,
Brian

Hello Brian,

thanks for your concern, it will help me to keep searching.

Olivier Sebillotte schrieb:
> Now I need to send data requests to the PCM to display the loaded
> program's state.
>
> Despite many efforts, I can't do this, I always got 'sysex data
> error..." on the PCM LCD.

Post a patch, and a reference to the sysex documentation of the PCM...

A midi monitor, which would allow you to verify which bytes you sent
would be helpful as well. (You can send the bytes back to Max with the
IAC bus if you are on a Mac...)

F0 You need to know the basics of Midi and Sysex... FE

(If you don't know what these F0 and FE means, you need to learn exactly
that... ;-)

Stefan

--
Stefan Tiedje------------x-------
--_____-----------|--------------
--(_|_ ----|-----|-----()-------
-- _|_)----|-----()--------------
----------()--------www.ccmix.com

Hi Steffan,

thanks for your help

attached is a patcher with everything I tried until now, what works and what doesn't.
plus the midi implementations charts I am refering to.

BTW, yes I did understood your joke, but why do you set a F0 at the end of sysex instead of F7 ?

Olivier

Ok, I finaly found the "rosetta stone" and now I can send data requests to my PCM.
But I have to say that the guys who wrote the PCM's sysex implementation document had in mind something like:

"let's make it so cryptic that no one will ever make a midi editor"

Anyway,

now I come back to you dear friends to ask for a wise advice:

What is the best format to handle complex sysex
integer or hexadecimal ?

The Lexicon's document uses Hexa, L.Objects uses Hexa,
Max 5 objects uses integer.
I feel much confortable with integer but it is just because I never used Hexa.

Experienced Max user advice needed :-)

Thanks a lot

> But I have to say that the guys who wrote the PCM's sysex
> implementation document had in mind something like:
>
> "let's make it so cryptic that no one will ever make a midi editor"

I had a look at the sysex for the Lexicon LXP-1 and LXP-5 many years
ago, and they are also extremely messy.

> What is the best format to handle complex sysex
> integer or hexadecimal ?

I don't understand the question. Integers are integers; the values are
the same whether formatted/presented in decimal, hex, octal or
anything else. If the Lexicon docs write in hex, you probably want to
use that for your constants.

    -- N.

Nick Rothwell / Cassiel.com Limited
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Quote: nick rothwell / cassiel wrote on Sun, 13 July 2008 12:09
----------------------------------------------------

> > What is the best format to handle complex sysex
> > integer or hexadecimal ?
>
> I don't understand the question. Integers are integers; the values are
> the same whether formatted/presented in decimal, hex, octal or
> anything else. If the Lexicon docs write in hex, you probably want to
> use that for your constants.
>
----------------------------------------------------

Hello Nick,
The reason I hesisate is that I think there are more max's objects to handle integer than hexa.
But I can't help to think that if sysex are more comonly used for sysex there must be a reason.

no ?

Quote: Olivier Sebillotte wrote on Sun, 13 July 2008 19:13
----------------------------------------------------
> But I can't help to think that if sysex are more comonly used for sysex there must be a reason.
>
> no ?
----------------------------------------------------
Hi Olivier,

Hex is the way to deal with single bits. And it is shorter than decimal and synth-people are used to it. I personally avoid Hex whenever I can (I am not used to it). If you talk to electronic devices via messages it is really only a question of number formatting.

Nice to meet you here!

Quote: Peter Ostry wrote on Tue, 15 July 2008 02:35
----------------------------------------------------
> Quote: Olivier Sebillotte wrote on Sun, 13 July 2008 19:13
> ----------------------------------------------------
> > But I can't help to think that if sysex are more comonly used for sysex there must be a reason.
> >
> > no ?
> ----------------------------------------------------
> Hi Olivier,
>
> Hex is the way to deal with single bits. And it is shorter than decimal and synth-people are used to it. I personally avoid Hex whenever I can (I am not used to it). If you talk to electronic devices via messages it is really only a question of number formatting.
>
> Nice to meet you here!
>
----------------------------------------------------
Hi Pete, happy to see you here as well ;-)

Thanks for intake, I guess I will go the decimal way.
I just have to make an hexadecimal->decimal table for quick converting.
The apple OSX's calculator has a nice programmer mode btw.

cheers