Stream data and AXI interface communication device

Abstract

The invention discloses a stream data and AXI interface communication device which comprises a transmission control module, an FIFO module, an interface communication module and a state signal storageregister; the transmission control module takes charge of receiving an acquisition starting signal of an upper computer, monitoring a data volume of a DDR and controlling acquired data to be stored into the DDR; the FIFO module is used for carrying out data rate conversion on the acquired data and carrying out data caching to organize AXI burst writing for once; the interface communication modulereads data from an FIFO, packages the data into a data format stipulated in an AXI4 protocol and then writes the data into a DDR storage; and the state signal storage register is used for storing anacquisition starting control signal and a DDR storage stored data volume state signal which are sent out by upper computer software. The stream data and AXI interface communication device supports stream data of a master end to be mapped into a random size of address space at a slave end, so that a PCIE data transmission rate is improved; and the stream data and AXI interface communication devicesupports user-defined settings so as to have high compatibility.

Description

technical field [0001] The invention relates to data collection and transmission technology, in particular to a communication device for stream data and AXI interface. Background technique [0002] With the rapid development of information technology, the amount of data processed by people has also increased significantly. Data transmission is an important part of data processing, and people have higher and higher requirements for data transmission speed. Society plays an important role. [0003] As the third-generation high-performance I / O bus, PCIE has changed from a parallel bus to a serial bus compared with the previous generation PCI bus, and uses high-speed differential signals to reduce bus signals and greatly increase the transmission rate. Existing high-speed data transmission systems are mostly based on PCIE1.0, PCIE2.0, USB3.0, Gigabit Ethernet ports, etc., but their transmission rate still cannot meet the data transmission rate requirements of modern radar echo ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a communication device for stream data and AXI interface, which solves the problem of lack of solutions for directly encapsulating ordinary stream data into AXI4 data in the current technology

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