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차량용 SENT 인터페이스의 설계 및 구현

Design and Implementation of Automotive SENT Interface

  • Lee, Jong-Bae (School of Electronic Engineering, Soongsil University) ;
  • Lee, Seongsoo (School of Electronic Engineering, Soongsil University)
  • 투고 : 2017.09.11
  • 심사 : 2017.09.26
  • 발행 : 2017.09.30

초록

SENT(single edge nibble transmission)는 차량에 탑재되는 다양한 센서와 ECU(electronic control unit)간의 직렬 통신 프로토콜이다. SENT는 디지털 파형을 사용하기 때문에 트랜시버 회로가 필요 없고 구조가 간단하며 가격이 저렴하여 주로 센서 내장형 통신 인터페이스로 주로 사용된다. 본 논문에서는 Verilog HDL을 이용하여 SAE J2716 규격을 만족하는 SENT 인터페이스를 설계하였다. 또한 이를 FPGA로 구현하고 테스트 보드를 제작하여 동작을 확인하였다. 0.18um 공정으로 합성하였을 때의 게이트 수는 약 2,500 게이트이다.

SENT (single edge nibble transmission) is a serial communication protocol between automotive sensors and ECU (electronic control unit). SENT exploits digital waveform, so it has a simple and cheap architecture without transceiver circuits. Usually it is exploited as an embedded communication interface in the sensors. In this paper, a SENT interface was designed in Verilog HDL, fully complying with SAE J2716. It was implemented in FPGA, and verified on a test board. When it was synthesized, the gate count is about 2,500 gates in 0.18um technology.

키워드

참고문헌

  1. ISO 11898-1:2015, "Road Vehicles-Controller Area Network (CAN)-Part 1: Data Link Layer and Physical Signalling," https://www.iso.org/standard/63648.html
  2. J. Lee and S. Lee, "Design and Verification of Automotive CAN Controller," j.inst.Korean.electr.electron.eng, vol. 21, no. 2, pp. 162-165, 2017.
  3. ISO 17987-1:2016, "Road Vehicles-Local Interconnect Network (LIN)-Part 1: General Information and Use Case Definition," https://www.iso.org/standard/61222.html
  4. J. Lee and S. Lee, "Design and Verification of Automotive LIN Controller," j.inst.Korean.electr.electron.eng, vol. 20, no. 3, pp. 333-336, 2016.
  5. SAE J2716 APR2016, "SENT-Single Edge Nibble Transmission for Automotive Applications," http://standards.sae.org/j2716_201604/