METHOD FOR CONVERTING AVALON BUS INTO AXI4 BUS

摘要

Provided is a method for converting an Avalon bus into an Axi4 bus. The method comprises: when an Avalon bus is an Avalon_st bus, receiving Avalon_st bus data, performing logic processing on the received Avalon_st bus data, and then outputting corresponding Axi4_st bus data; and when the Avalon bus is an Avalon_mm bus, receiving signals transmitted by various channels of the Avalon_mm bus, framing the signals, and then storing the framed signals in asynchronous FIFO, and when a device corresponding to an Axi4 bus is ready, reading the signals from the asynchronous FIFO, and outputting the signals to corresponding channels of the Axi4 bus according to a timing relationship of the Axi4 bus. The method can convert an Avalon bus into an Axi4 bus without delay and in a clock domain crossing manner, and can realize rapid design and interface matching operations in a cross-platform universal design or code transplantation scheme.