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J2716 SENT - Single Edge Nibble Transmission, Updates and Status
Technical Paper
2011-01-1034
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
The SAE J2716
SENT (Single Edge Nibble Transmission) Protocol has entered production with a number of announced products. The SENT protocol is a point-to-point scheme for transmitting signal values from a sensor to a controller. It is intended to allow for high resolution data transmission with a lower system cost than available serial data solution. The SAE SENT Task Force has developed a number of enhancements and clarifications to the original specification which are summarized in this paper.
The most significant updates include the following:
- Adding an optional pause pulse which can make the frame length independent of the SENT message data content
- Defining a new enhanced serial message encoding as an optional replacement for the original short serial data message
- Clarifying the diagnostics and remedial actions for successive calibration pulse comparisons
- Adding recommended processing of a zero nibble in addition to the data in the checksum calculation to protect against a common error in the last data nibble and checksum
- Adding a new recommended circuit topology to better support 3.3V receiver systems
- Updating specification of data formats and protocols for mass air flow (MAF), Temperature and Pressure applications.
- Adding new communication protocols to take advantage of the new Enhanced Serial Message
- Adding EMC Susceptibility testing guidelines
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Authors
- Mark Costin - General Motors Company
- Robert Horner - General Motors Company
- Johannes Jaegers - Hella KGaA Hueck & Co
- Dirk Daecke - Robert Bosch GmbH
- Alex Grossmann - Robert Bosch GmbH
- Bernhard Opitz - Robert Bosch GmbH
- Machiel ten Brinke - Sensata Technologies
- Tim Tiek - Sensata Technologies
- Eric Visser - Sensata Technologies
Topic
Citation
Costin, M., Horner, R., Jaegers, J., Daecke, D. et al., "J2716 SENT - Single Edge Nibble Transmission, Updates and Status," SAE Technical Paper 2011-01-1034, 2011, https://doi.org/10.4271/2011-01-1034.Also In
References
- SAE International Surface Vehicle Information Report “SENT-Single Edge Nibble Transmission for Automotive Applications,” SAE Standard J2716 April 2007
- SAE International Surface Vehicle Information Report “SENT-Single Edge Nibble Transmission for Automotive Applications,” SAE Standard J2716 Feb. 2008
- SAE International Surface Vehicle Information Report “SENT-Single Edge Nibble Transmission for Automotive Applications,” SAE Standard J2716 2009
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- Hella CIPOS® Contactless Inductive Position Sensor http://www.hella.com/cipos
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- Melexis Rotary Position Sensor IC, MLX90324
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- Beaurenaut, L. Eggiman, C. Gastinger, F. Platzdasch, H. et al. “Single-Edge Nibble Transmission: Challenges and Evolutions,” SAE Technical Paper 2009-01-0125 2009 10.4271/2009-01-0125