Abstract：Various kinds of state data and the driver’S cabin sounds when shipping sails are main bases in the accident investigation and analysis after shipwreck．Through analyzing the object，VxWorks is chosen as the OS，and ES1969F Audio Chip with ISA interface is chosen as the main control chip．The connection with ISA is analyzed．By choosing the configuruation of PnP and the DMA mode1．the initialization and the work― ing model of ES1869F are determined，finishing the function of gathering sounds．
Key words：Vxworks；DMA；ISA；ES1869；Pc／104
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