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基于TMS320F28335的高速数据采集电路设计

更新时间:2020-09-13 06:42:31 大小:490K 上传用户:IC老兵查看TA发布的资源 标签:tms320f28335数据采集 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对超声波流量计中高速数据采集的需求,采用32位浮点实时MCU芯片TMS320F28335和高速A/D转换器ADS805E设计了一种12位分辨率,20MSPS的高速数据采集电路。数据接口通过外部扩展接口Xintf扩展,使用DMA高速读取转换后的数据,控制接口通过GPIO口实现。文中给出了硬、软件设计及测试结果,该接口电路具有高性能,接口简单,低成本等特点,已经在研制的超声波流量计中应用。

A data acquisition circuit with the function of 12-bit resolution,20 MHz sampling frequency data acquisition is designed based on 32-bit floating-point real-time MCU chip TMS320F28335 and high-speed A/D converter ADS805E,aiming to be used in ultrasonic flowmeter data interface is achieved by expanding ADS805E through external interface(XINTF),transferring the converted date by high-speed control interface is realized by dware circuit,bottom-layer software and testing results are given in the s circuit owns following advantages,such as,excellent performance,simple interface,and low cost,etc,and it has been applied in the ultrasonic flowmeter developed by our group.

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基于TMS320F28335的高速数据采集电路设计.pdf 490K

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