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Implementation and Verification of Automotive CAN-FD Controller

차량용 CAN-FD 제어기의 구현 및 검증

  • Lee, Jong-Bae (School of Electronic Engineering, Soongsil University) ;
  • Lee, Seongsoo (School of Electronic Engineering, Soongsil University)
  • Received : 2017.09.05
  • Accepted : 2017.09.19
  • Published : 2017.09.30

Abstract

CAN (controller area network) suffers from data bottleneck since the number of in-vehicle electronic modules significantly increases. To mitigate this problem, CAN-FD (CAN with flexible data rate) has been proposed. Transmission speed is same with CAN in arbitration phase but much higher than CAN in data phase, which successfully achieves both compatibility and efficiency. In this paper, a CAN-FD controller was designed in Verilog HDL and it was implemented and verified in FPGA. The designed controller can perform CAN-FD version 1.0 and CAN version 2.0A, 2.0B. Synthesized in 0.18um technology, its size is about 46,300 gates.

차량 내부의 전자 장치가 급증함에 따라 CAN(controller area network)에 데이터 병목 현상이 발생하기 시작했다. 이에 따라 CAN을 개량한 CAN-FD(CAN with flexible data rate) 버스가 개발되었는데, 버스 중재 단계(arbitration phase)에서는 CAN과 동일한 속도로 전송하되 데이터 전송 단계(data phase)에서는 훨씬 빠른 속도로 전송함으로서 호환성과 효율성을 모두 높였다. 본 논문에서는 CAN-FD 규격 1.0과 CAN 규격 2.0A, 2.0B를 모두 만족하는 CAN-FD 제어기를 Verilog HDL를 사용하여 설계하고 FPGA로 구현한 뒤 동작을 검증하였다. 0.18um 공정을 사용하여 합성한 결과는 약 46,300 게이트이다.

Keywords

References

  1. 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
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