通过在FPGA内部的数据源产生40Mbps的数据，FPGA对数据进行缓冲后，每52ms左右向主机发出一次中断，请求进行DMA传输，每次DMA的大小为228352字节。另附C++上位机软件代码(By generating 40Mbps data from the data source inside the FPGA, the FPGA buffers the data and sends an interrupt to the host every 52ms or so, requesting a DMA transmission, each time the size of the DMA is 228352 bytes. Attached the C++　code)