Design of A Reusable SPI Bus Using FPGA

SPI protocol with its simple rules and fast communication speed characteristics is getting more and more widely used.In this paper,according to the standard of SPI bus,a mode of SPI0 interface circuit design is proposed by using the comprehensive Verilog HDL language and the corresponding handware circuit is completed on the FPGA.The test results show that the designed SPI bus interface meets the practical application requirements.