Interface conversion bridge based on Avalon bus, interface conversion method and system

Abstract

The invention discloses an interface conversion bridge based on an Avalon bus. The interface conversion bridge comprises an external interface module and a data memory, Wherein the external interfacemodule comprises a specified access end and a specified output end; The designated access end is externally connected with an initiating interface controller in an external functional part, is internally connected with a data memory, and is used for sequentially writing the received data into the data memory; And the specified output end is externally connected with a receiving interface controller in an external functional part, is internally connected with a data memory, and is used for reading data from the data memory and sending the read data to the receiving interface controller. The interface conversion bridge can flexibly realize Avalon- And the MM interface and the ST interface are mutually converted, so that the expandability is high. The invention also discloses an Avalon bus interface conversion method and an Avalon bus interface conversion system, which have the above beneficial effects.

Description

technical field [0001] The invention relates to the technical field of heterogeneous acceleration, in particular to an interface conversion bridge based on an Avalon bus, an Avalon bus interface conversion method and system. Background technique [0002] With the increasingly widespread application of heterogeneous acceleration, FPGA-based accelerator cards are also developing rapidly. The accelerator card FPGA is connected to the server host through the PCIE interface, and the server host sends the data to be accelerated to the accelerator card FPGA through the PCIE interface, and the accelerator card FPGA returns relevant data through the PCIE interface after processing. [0003] Most of the internal modules in most FPGAs currently use the Avalon bus for mounting and connection. The Avalon bus has two interfaces, Avalon-MM (memory map) and Avalon-ST (stream), among which the MM type interface reads and writes data through the address, and is mostly used in control functio...

AI Technical Summary

Problems solved by technology

This interface type conversion method has low portability. In many cases, it is necessary to configure multiple sets of logic conversion to adapt to the diversity of different application scenarios, which will prolong the development cycle and reduce the portability and reusability of components; The logic conversion module is integrated in each component, which increases the complexity of the internal functional modules of the component and reduces the competitiveness of the product

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