音视频数据采集接口电路设计及实现

针对普通缓存器存储溢出或者读空的问题，对音视频数据采集系统的接口电路进行了设计和实现。该接口电路可实现压缩后的音频和视频数据的FPGA缓存和PCI总线传输。利用乒乓操作的方法控制缓存器的切换，以保证数据的无缝传输。仿真试验结果表明，所设计的接口电路，其准确性和稳定性均满足项目要求，且具有较好的工程使用价值。

Design and Realization of the Audio and Video Signal Acquisition Interface Circuit

In this paper, the interface circuit of an audio and video data acquisition system is designed and realized to solve the problem of buffer memory overflow or read empty issue. The interface circuit is designed for audio and video compression data FPGA cache and PCI bus transfer. The method of controlling the use of ping-pong operation switch buffer ensures seamless transfer of data. Simulation results show that the accuracy and stability of the interface circuit designed meets the project requirements and has good engineering application value.