Sysex commands for MIDI Timepiece AV/Micro Express

Moderator: James Steele

Forum rules
Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. with Windows
Post Reply
spitcher
Posts: 2
Joined: Mon Jan 05, 2009 4:04 pm
Primary DAW OS: Unspecified

Sysex commands for MIDI Timepiece AV/Micro Express

Post by spitcher »

Hello - We use the above devices in a system to generate or receive timecode. Does anyone know where I can find documentation on the sysex commands for them including those to set the timecode and to start and stop sending?

Thanks,

Stan
1nput0utput
Posts: 1477
Joined: Thu Aug 02, 2007 4:21 am
Primary DAW OS: MacOS
Location: USA

Re: Sysex commands for MIDI Timepiece AV/Micro Express

Post by 1nput0utput »

I don't think there are sysex messages that will locate/start/stop the MTP-AV or Micro Express. For those functions, you would want to transmit MMC to the interface.
The leading cause of wrong answers is asking the wrong questions.
spitcher
Posts: 2
Joined: Mon Jan 05, 2009 4:04 pm
Primary DAW OS: Unspecified

Re: Sysex commands for MIDI Timepiece AV/Micro Express

Post by spitcher »

Thanks for the reply. We are currently using what I believe are sysex messages to do this. They are some number of bytes starting with0xF0 and ending with 0xF7. For example here is the command we use to start the device:

//////////////////////////////////////////////////////////////////////////////////////
// Start Device Command
char szStart[] = {(char)0xF0, (char)0x7F, (char)0x00, (char)0x06, (char)0x03, (char)0xF7};

I believe a former engineer here determined these commands by using Clock works and a USB sniffer. Seems there should be documentation for them somewhere?

Can you explain what you mean by "transmit MMC to the interface"? I am somewhat new to all of this.

Thanks,

Stan
Post Reply