在FPGA中建立一个FIFO可用宇内部传输测试使用，也可以用于两个单片机之间的数据传输，同时还上传了基于DSP的SPI设置的FPGA源码-Create a FIFO in the FPGA internal transmission test using the available buildings, can also be used for data transfer between two microcontrollers, but also upload a set of DSP-bas