【摘要】 设计了以CPLD为核心处理芯片的高速高精度数据采集系统,根据输入信号范围,采用浮点放大器放大适当的倍数,保证了数据采集系统的动态测量范围,提高了数据采集精度;双端口RAM作为A/D转换与CPU之间的桥梁,为高速数据吞吐提供了有力的硬件支持。更多还原

【Abstract】 High speed and precision data acquisition system has been designed with CPLD (complication program logic device) as its kernel processor. According to input signal range, the float-point amplifier enlarges suitable multiples to ensure the dyna extension and the data acquisition precision has been increased. As a bridge between CPU and A/D convertor, the dual port RAM provides hardware support for high-speed data transmission.更多还原