复杂电磁环境下I2C总线和RS-232串口的改进

2017 14th International Joint Conference on Computer Science and Software Engineering (JCSSE) Pub Date : 2008-12-12 DOI:10.1109/CSSE.2008.843

Chai Yan-jie, Sun Ji-yin, Gao Jing, Tao Ling-jiao, Ji Jing, Bao Fei-hu

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引用次数: 6

摘要

I2C总线和RS-232串口是嵌入式系统中单片机与外围设备进行数据通信的重要接口。在复杂的电磁环境下，由于接口处理不当，会影响嵌入式系统的性能，导致系统的运行速度和可靠性降低。针对当前嵌入式编程中存在的速度匹配问题，设计了双缓冲器和周期单缓冲器两种缓冲器，分别解决了I2C总线的速度提升问题和RS-232串行传输可靠性问题。实验结果表明，I2C总线与RS-232串口在复杂电磁环境下的通信能够实现快速稳定，达到了理想的目的。

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Improvement of I2C Bus and RS-232 Serial Port under Complex Electromagnetic Environment

I2C bus and RS-232 serial port are the important data communication interfaces between the MCU of embedded system and the peripheral equipment. The embedded system performance will be affected under complex electromagnetic environment by the improper disposal to the interfaces, which results in the low speed and reliability. According to the speed matching problems in current embedded programming, the paper designed two kinds of buffers, the double buffers and cycle single buffer, which separately solved the problems of the speed improvement of I2C bus and the serial transmission reliability of RS-232. The result of the experiment shows that communications of I2C bus and RS-232 serial port under complex electromagnetic environment can be of speediness and stabilization, and the ideal goal has been obtained.

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来源期刊

2017 14th International Joint Conference on Computer Science and Software Engineering (JCSSE)

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