E1.20 RDM (Remote Device Management) Protocol Forums  

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

RDM Timing Discussion Discussion and questions relating to the timing requirements of RDM.

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old March 29th, 2007   #1
Dan Scheurell
Junior Member
Join Date: Mar 2007
Location: Middleton, Wisconsin, USA
Posts: 4
Default Exceeding MAB time

RDM imposes a restriction on the MAB time (88 us) that is new since DMX. Some combinations of external UART and CPU may have difficulty guaranteeing that time (if, for instance, interrupt priorities are relatively fixed and a higher priority interrupt preempts and takes its sweet time.)

It seems like the restriction is based on performance considerations, to prevent the line from laying around idle for too long. In that case, exceeding the spec a bit (say for about 40 us) may not be a tragedy? I can imagine that some RDM devices could assume that the controller has gone, but I'm wondering if, in general, the extra time would go unnoticed.

Dan Scheurell is offline   Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Time between controller packets Dan Scheurell RDM Timing Discussion 1 April 1st, 2007 11:38 PM

All times are GMT -6. The time now is 03:59 AM.

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