Normal Data acquisition and processing system are based on DSP at present.The core processer of signal acquisition and processing syestem based on TMS320C6205 is DSP.Data acquisition and processing can be done at the same time.The processing results can be transferred to master computer by PCI bus.The difficult of hardware developments can be reduced by this DSP′s PCI interface,and this system can beadapted of different signals by modified processing software.