【摘要】 基于PCI(外部设备互连 )总线的通用多DSP(数字信号处理器 )目标系统 ,采用 4片级联的定点DSP(ADSP2 181)对 2路采集数据进行处理 ,处理结果可串行送出或通过DSP的IDMA(片内直接存储器存取 )接口送到主机。FPGA完成PCI90 5 4与DSP之间的时序配合、A/D转换器的起停控制逻辑以及采集数据与DSP之间的传输控制。系统应用软件支持DSP程序下载、动态波形显示和数据归档等操作。更多还原

【Abstract】 The general multi-DSP(digital signal processor) target system based on PCI bus is used to process two collected data by four cascaded fixed-point DSPs(ADSP2181) ,the results can be sent to host computer for dynamic display and saving through IDMA port of DSP. The time sequence of PCI9054 and DSP, control logic of A/D converter, transmission control between collected data and DSP are implemented by FPGA. Operations such as file downloading, wave displaying, internal register access and data saving can be supported by application software.更多还原