| 基于普通MCU实现SENT接口数据的采集 |
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| 引用本文： | 刘永春,王秋花,郭庆波,高发廷.基于普通MCU实现SENT接口数据的采集[J].汽车电器,2021(4):52-54. |
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| 作者姓名： | 刘永春 王秋花 郭庆波 高发廷 |
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| 作者单位： | 中国重汽集团汽车研究总院 |
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| 摘 要： | SENT协议(SAE J2716)为汽车传感器的新型接口标准,它以更高的数据传输速度、可靠性、抗干扰性等优势逐步取代传统传感器与微处理器(MCU)之间模拟信号的传输。本文对SENT协议进行分析研究,提出一种基于普通MCU实现SENT接口数据采集的方法,并利用NXP公司的微处理器实现了SENT协议数据帧的解析,文中给出了具体的软硬件设计方法及测试波形图。该方法能够正确接收SENT传感器数据信息,完美解决了微处理器内部没有SENT模块接口的问题,这对于电子控制单元SENT功能的开发具有十分重要的参考意义。
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| 关 键 词： | SENT协议 微处理器MCU 数据采集 数据帧 |
Data Acquisition of Sent Interface Based on Common MCU |
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| LIU Yong-chun,WANG Qiu-hua,GUO Qing-bo,GAO Fa-ting.Data Acquisition of Sent Interface Based on Common MCU[J].Auto Electric Parts,2021(4):52-54. |
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| Authors: | LIU Yong-chun WANG Qiu-hua GUO Qing-bo GAO Fa-ting |
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| Institution: | (China Heavy Duty Automobile Research Institute,Jinan250000,China) |
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| Abstract: | SENT protocol(SAE j2716)is a new interface standard for automotive sensors,which has higher data transmission speed,reliability,anti-interference and other advantages,and gradually replace the traditional sensor and microprocessor(MCU)analog signal transmission.In this paper,the sent protocol is analyzed and studied,and a method of data acquisition of sent interface based on ordinary MCU is proposed.The data frame of sent protocol is analyzed by using the microprocessor of NXP company.The specific software and hardware design method and test waveform are given.This method can correctly receive the sensor data information of sent and perfectly solve the problem that there is no sent module interface in the microprocessor,which has a very important reference significance for the development of the function of the electronic control unit sent. |
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| Keywords: | sent protocol MCU data acquisition data frame |
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