File System for Digital Signal Processing Equipment Based on FPGA

A file system for digital signal processing equipment based on FPGA is designed. The ZYNQ-7000 FPGA is the processing center of the file system. An NVMe hard disk is connected to the GTx bank of FPGA as a PCIe device. FPGA and DSP chips interconnect through SRIO switch chip. Data which needs to be memorized comes from DSP through X4 SRIO interface. In FPGA, PL side receives command and data from DSP. PL buffers data to be memorized in different double port RAMs according to the command.PS reads data from buffer rams according to command data reading from command buffer rams and writes data to a responding subarea. Experiments show the designed file system memorizes data from DSP in real time. When data packet is 128 KB, writing data rate can be 550 MB/s.