基于DSP的高精度数据采集设计与实现

High-accuracy Data Acquisition and Realization Based of DSP

本文介绍了TMS320VC5402多通道缓冲串口的结构,接收数据的方式,音频A/D转换器CS5360的特点、工作方式。利用DSP多通道缓冲串口(McBSP)的同步收发模式,将McBSP直接与A/D芯片串行输出连接,无须任何转换而得到A/D的输出数据。同时,利用DSP的可编程定时器输出引脚TOUT0作为A/D转换器的主时钟,简化了系统设计,实现了高精度数据采集的功能。

The thesis introduces the structure of TMS320VC5402 multi-channel buffer serial port(McBSP), and the mode of DSP receiving data, characteristic,working way of audio frequency A/D converter CS5360.Util-ize DSP McBSP synchronous receiving and dispatching mode of data,McBSP being joined with the serial output of A/D chip, receiving A/D export data without any conversion, besides, utilize the programmable timer of DSP output pin TOUTO as master clock of A/D converter.The system design is reduced and realized the function that the high-accuracy data collected.