基于VC33芯片的多路高速同步数据采集系统硬件设计

介绍了以一款浮点数DSP芯片TMS320VC33为控制核心的16通道高速同步数据采集系统的硬件设计。采用了锁相环电路对周期信号进行同步跟踪和控制采样，通过4片4通道高速模／数转换器AD7865与TMS320VC33接口来实现数据采集，并使用复杂可编程逻辑器件（CPLD）来实现采集系统硬件模块的地址分配。该数据采集系统已应用在无功发生器STATCOM的研制中，为STATCOM的设计提供了完善的前端处理电路。

Hardware Design of Multi-Channel High-Speed Synchronous Data Acquisition System Based on VC33

Introduction was made to the hardware design of sixteen-channel high-speed synchronous data acquisition system with float point digital single processor chip TMS320VC33 as control core,adopting phase-locked loop(PLL)circuit to have cyclic signal tracked and sampled simultaneously.Date acquisition was achieved via 4 pieces of four-channel high-speed A/D converter AD7865 with TMS320VC33 interface,and complex programmable logic device(CPLD)was used to realize acquisition system hardware mod-ule adress distribution.The data acquisition system has already been applied in the manufacture of reactive generator STATCOM,pro-viding it with complete front end processing circuit.