DocumentCode :
1810870
Title :
Performance evaluation and improvement of the CPU-CAN controller interface for low-jitter communication
Author :
Cena, Gianluca ; Bertolotti, Ivan Cibrario ; Tingting Hu ; Valenzano, Adriano
Author_Institution :
Nat. Res. Council of Italy, IEIIT, Turin, Italy
fYear :
2012
fDate :
17-21 Sept. 2012
Firstpage :
1
Lastpage :
8
Abstract :
The effectiveness and quality of several distributed control loops are heavily affected by the ability to reduce jitters. This goal can hardly be achieved without understanding all possible causes that can introduce time fluctuations in the communication path between the processor, running the control algorithms, and the (remote) peripheral devices. This is because any of them, in fact, may worsen the timing accuracy of the system as a whole. After the most well-known sources of jitters are put under control, other aspects become more and more important for the overall behavior of the system. This paper tackles the problem of time fluctuations introduced by the interface between the Central Processing Unit (CPU) and the CAN controller in a typical off-the-shelf, single-chip microcontroller and shows why and how they should be considered and handled carefully.
Keywords :
controller area networks; microcontrollers; telecontrol; timing jitter; CPU-CAN controller interface improvement; CPU-CAN controller interface performance evaluation; central processing unit; communication path; control algorithms; distributed control loops; jitter reduction; low-jitter communication; remote peripheral devices; single-chip microcontroller; time fluctuations; timing accuracy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Emerging Technologies & Factory Automation (ETFA), 2012 IEEE 17th Conference on
Conference_Location :
Krakow
ISSN :
1946-0740
Print_ISBN :
978-1-4673-4735-8
Electronic_ISBN :
1946-0740
Type :
conf
DOI :
10.1109/ETFA.2012.6489561
Filename :
6489561
Link To Document :
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