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2002
IEEE

Minimizing CAN Response-Time Jitter by Message Manipulation

9 years 7 months ago
Minimizing CAN Response-Time Jitter by Message Manipulation
Delay variations (jitter) in computations and communications cause degradation of performance in control applications. There are many sources of jitter, including variations in execution time and bus contention. This paper presents methods to reduce the jitter caused by the bit-stuffing mechanism in the Controller Area Network (CAN). By introducing some restrictions, such as a small reduction of available frame priorities, we are able to reduce the number of stuffed bits in the worst case. We also combine this with some of our previous work that reduces the number of stuffed bits in the data part of the frame. We show the actual penalty introduced by forbidding priorities, and we show the overall improvement by using these techniques together in a small case study.
Thomas Nolte, Hans Hansson, Christer Norström
Added 15 Jul 2010
Updated 15 Jul 2010
Type Conference
Year 2002
Where RTAS
Authors Thomas Nolte, Hans Hansson, Christer Norström
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