| 两片ADS7863与TMS320F28335的接口设计 |
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| 引用本文： | 高瑛,谢战洪,王大鹏.两片ADS7863与TMS320F28335的接口设计[J].通信技术,2011,44(7):126-129. |
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| 作者姓名： | 高瑛 谢战洪 王大鹏 |
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| 作者单位： | 郑州机电工程研究所,河南,郑州,450015 |
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| 摘 要： | 为了实现DSP芯片与串行A/D芯片的多信号通信,设计了TMS320F28335的多通道缓冲串口（McBSP,Multi-channel Buffered Serial Port）与两片串行A/D转换器ADS7863的硬件与软件接口。在硬件接口设计中两片ADS7863与同样的McBSP引脚连接,A/D转换结果被同一个数据接收引脚接收。该系统设计可以使DSP扩展更多的ADS7863芯片,从而可以采集更多的信号。其次,该设计中A/D转换器与McBSP串口直接相连,不需要占用并行数据总线,避免了总线冲突。通过在CCS环境下编程、调试,得到了满意的实验结果,验证了该接口设计的正确性。
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| 关 键 词： | TMS320F28335 A/D转换器 ADS7863 多通道缓冲串口 |
Design on Interface Between the Two Pieces of Serial AD Converter ADS7863 and TMS320F28335 |
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| GAO Ying,XIE Zhan-hong,WANG Da-peng.Design on Interface Between the Two Pieces of Serial AD Converter ADS7863 and TMS320F28335[J].Communications Technology,2011,44(7):126-129. |
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| Authors: | GAO Ying XIE Zhan-hong WANG Da-peng |
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| Affiliation: | GAO Ying,XIE Zhan-hong,WANG Da-peng (Zhengzhou Institute of Mechanics and Electrics,Zhengzhou Henan 450015,China) |
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| Abstract: | The hardware and software interface between TMS320F28335(McBSP,multi-channel buffered serial port) and two pieces of ADS7863 is designed for the realization of multi-signal communication between DSP and serial A/D converter.In this hardware interface design,two pieces of ADS7863 is conected to the same McBSP pins,and A/D conversion results are received by the same data receiving pin.The system design could make the DSP expand more ADS7863 chips and thus collect more signals,and furthermore,the A/D converter... |
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| Keywords: | TMS320F28335 A/D converter ADS7863 multi-channel buffered serial port |
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