| LonWorks节点中主从处理器之间I2C接口的设计 |
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| 引用本文： | 杨帅,薛岚,刘利宏,吴红兵.LonWorks节点中主从处理器之间I2C接口的设计[J].电子科技,2009,22(7):62-65. |
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| 作者姓名： | 杨帅 薛岚 刘利宏 吴红兵 |
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| 作者单位： | 淮安信息职业技术学院电气工程系,江苏,淮安,223003 |
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| 基金项目： | 黑龙江省教育厅科学技术研究基金资助项目(11513037);;江苏省淮安信息学院数字化资源建设基金资助项目(B073403) |
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| 摘 要： | 为提高LonWorks总线的控制能力,设计了以单片机AT89S51为主的处理器、神经元芯片MC143150为从处理器的LonWorks节点,主处理器和从处理器之间的接口采用I2C通信总线,节省了神经元芯片的I/O硬件资源,同时也减小了节点的体积。LonWorks节点利用Neuron芯片中声明的I2C对象和单片机AT89S51模拟的I2C总线完成主、从处理器间的数据交换。测试证明,主从处理器采用I2C总线的节点,具有良好的通信性能。
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| 关 键 词： | LonWorks 节点 AT89S51 MC143150 I2C |
Design of the I2C Interface for the LonWorks Node Based on the Architecture of the Host/Slave Processor |
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| Yang Shuai,Xue Lan,Liu Lihong,Wu Hongbing.Design of the I2C Interface for the LonWorks Node Based on the Architecture of the Host/Slave Processor[J].Electronic Science and Technology,2009,22(7):62-65. |
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| Authors: | Yang Shuai Xue Lan Liu Lihong Wu Hongbing |
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| Institution: | Department of Electric Engineering;Huai'an College of Information and Technology;Huai'an 223003;China |
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| Abstract: | In order to improve the control capability of LonWorks fieldbus,a LonWorks node with Microcontroller AT89S51 as the host processor and Neuron chip MC143150 as the slave processor is designed.The interface between the host processor and slave processor is designed using the I2C bus,thus saving I/O hardware resources of the Neuron chip and decreasing the size of the node.Data exchange in the LonWorks node is completed through the I2C object declared in the Neuron chip and the I2C bus simulated in Microcontrol... |
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| Keywords: | LonWorks node AT89S51 MC143150 I2C |
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