Design and implement of RS485 high speed data communications protocol

Lizhong Geng; Peng Wang; Cheng Ma; Huibo Jia

Design and implement of RS485 high speed data communications protocol

Lizhong Geng, Peng Wang, Cheng Ma, Huibo Jia

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

This paper describes a RS485 communications protocol for high-speed baseband communications. The inter symbol interference (ISI) is reduced by an efficient bit synchronization signal detection scheme. Sampling begins at the beginning of the input signals to get exact digital results. The frame synchronization uses 8B/10B coding and guarantees bit synchronization. The protocol was implemented on a field programmable gate array (FPGA)with test results indicating that the protocol achieves 14.5 Mb/s along a 220 meters line.

Original language	English
Pages (from-to)	1311-1314
Number of pages	4
Journal	Qinghua Daxue Xuebao/Journal of Tsinghua University
Volume	48
Issue number	8
State	Published - Aug 2008
Externally published	Yes

Keywords

Communication protocol
Field programmable gate array (FPGA)
RS485 bus

Cite this

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AB - This paper describes a RS485 communications protocol for high-speed baseband communications. The inter symbol interference (ISI) is reduced by an efficient bit synchronization signal detection scheme. Sampling begins at the beginning of the input signals to get exact digital results. The frame synchronization uses 8B/10B coding and guarantees bit synchronization. The protocol was implemented on a field programmable gate array (FPGA)with test results indicating that the protocol achieves 14.5 Mb/s along a 220 meters line.

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Design and implement of RS485 high speed data communications protocol

Abstract

Keywords

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