| Summary: | 碩士 === 國立中山大學 === 電機工程學系研究所 === 96 === Thanks to the booming of car electronics in recent years, more car electronics devices are installed in ve-hicles. These devices are connected by in-vehicle communication networks. In this thesis, we present the tran-sceiver and clock generator design for the physical layer of a FlexRay-based in-vehicle communication protocol.
Regarding the transceiver design, a LVDS-like transmitter is proposed to drive the twisted pair of the bus. By contrast, a 3-comparator scheme is used to carry out the required bit-slicing and state recognition at the re-ceiver end.
The reliability and safety are the priority design factors for electronics. A robust 20 MHz clock generator with process, supply voltage, and temperature compensation, a sub-1 MHz oscillator, and a temperature detector are included in our clock generator design.
All of these designs are implemented by using a typical 0.18 um single-poly six-metal CMOS process. The proposed prototypical transceiver has been tested by a thermo chamber to justify its operation in the required temperature rage, i.e., -40°C to 125°C. Moreover, the compatibility of our design is also verified in a real FlexRay-based network. The maximum throughput of the proposed prototypical transceiver can reach 40 Mbps.
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