说明：  基于FPGA的B超数据采集功能，根据输入图像的束同步与帧同步信号，采用中断控制进入FIFO的图像数据的读写操作！
(FPGA-based B-data collection capabilities, according to the input image beam synchronization and frame synchronization signal used to control access to FIFO interrupt the operation of image data read and write!)