E1.20 RDM (Remote Device Management) Protocol Forums  

Go Back   E1.20 RDM (Remote Device Management) Protocol Forums > RDM Developer Forums > RDM General Implementation Discussion

RDM General Implementation Discussion General Discussion and questions relating to implementing RDM in a product.

Reply
 
Thread Tools Search this Thread Display Modes
Old July 21st, 2006   #1
anstein
Junior Member
 
Join Date: Jul 2006
Posts: 2
Default RDM V1.0 and Art-Net

I'm looking for some clarification regarding an Art-Net RDM implentation that may be solved by someone who has an old RDM draft/review spec.

The Art-Net specification states for RDM data within an Art-Net packet:

The RDM data packet including the StartCode

The current Art-Net software from Artistic Licence, however, sends packets in a format that is incompatible to the E1.20-2006 specification, it especially starts RDM messages within Art-Net packets with SC_SUB_MESSAGE (0x01) instead of SC_RDM (0xcc).

Was there an older review/draft specification where RDM messages did start with 0x01 instead of 0xcc?
anstein is offline   Reply With Quote
Old July 23rd, 2006   #2
sblair
Administrator
 
Join Date: Feb 2006
Posts: 433
Send a message via AIM to sblair Send a message via MSN to sblair
Default

The Art-Net implementation of RDM was done based on a variation of several early drafts. I would advise against coding to the draft versions and instead wait for Artistic Licence to update to the final version of E1.20.

The Art-Net implementation was done using the prototype Start Code SC_RDM of 0xF0. Now that RDM is actually released all RDM communication is done using the official 0xCC Start Code.

SC_SUB_MESSAGE has always been present and always been 0x01. You will find a numerous incompatabilities and differences between the draft version that was implemented in Art-Net and the final version that has been released.

Again, I would encourage you to only code to the release version and await the update from Artistic Licence to the release version as well.
__________________
Scott M. Blair
RDM Protocol Forums Admin
sblair is offline   Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 06:06 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.