Casio CZ/ VZ/ FZ - Pro Series

If you have a legible copy of Casio's Guidebook for MIDI (Nov. 1985), 
look on page 19.  MIDI was young back in 1985, and Casio was a 
pioneer in synths.  As a result, despite the standards, some oddities 
popped up.

Casio (in the CZ line) uses a handshaking protocol that does NOT have 
an F7 byte after every part of the conversation.  [F7 is hexidecimal 
code that represents the end of a system exclusive message].

If your VB program doesn't handle the handshake properly, you will 
have problems.

Here's the conversation from p. 19.

Computer does Send Request 1 [patch data]:
F0 44 00 00 7n 10 dd   [where n = channel #  - 1 and dd = memory bank]

CZ replies:
F0 44 00 00 7n 30

Computer replies:
7n 31

Then CZ sends "Tone Data" followed by an F7

Computer replies with F7.

I have not done VB programming, so I can't help you there.

[The Guidebook posted in files is illegible.  I have a PDF that is 
clearer and will try to post it.]

--- In CZsynth@yahoogroups.com, "h2a2p" <h2a2p@y...> wrote:
> I have been playing around with my CZ-5000 and some Visual Basic
> (VB) programming.

[snip]

> I have two MIDI programming guides for the CZ that I am learning 
> from, but I can't seem to figure out exactly how to communicate the 
> Sysex data to the CZ, for example to change patch parameters or
> load a new patch.

[snip]

> Does anyone out here have any VB source code that might help me out 
> to see some examples of sysex communications with the CZ?

My CZ sysex I/O was in 6502/6510 asm for the Commodore 64/128.  I may 
have the source code in an MS-DOS text file.  If so, I my algorithm 
may be useful to you.  Hmmmm.  Just checked.  I have a few other C64 
midi source codes, but not the one showing the CZ handshaking.

Other ideas: A while ago Daniel Krüger made available a CZBankManager 
program.  I think he used C or C++, though.  You might want to search 
the archives and see if he can help.

Hope this helps.

--Dr. Steve