A USB data real-time monitoring system and method based on FPGA

Abstract

The invention relates to a USB data real-time monitoring system and method based on FPGA, and belongs to the technical field of electronics and communication. The invention comprises an FPGA chip, a USB transceiver module I, a USB transceiver module II and a DDR3 SDRAM memory. The FPGA chip includes a ULPI data transceiver module I, a ULPI data transceiver module II, a ULPI control module I, a ULPI control module II, a data temporary storage module and an FPGA signal processing and coordination module; As that FPGA of the invention is used as a relay, the data on the USB bus can be unpacked, stored and forwarded after the USB transmission line is accessed without a PC, so that the non-invasive USB data real-time monitor and collection from the data level can be realized.

Description

technical field [0001] The invention relates to an FPGA-based USB data real-time monitoring system and method, belonging to the technical field of electronics and communication. Background technique [0002] FPGA (Field-Programmable Gate Array), the full name is Field Programmable Gate Array. It emerged as a semi-custom circuit in the field of application-specific integrated circuits (ASIC), which not only solves the shortcomings of custom circuits, but also overcomes the shortcomings of the limited number of original programmable device gates. The circuit design completed in hardware description language (Verilog or VHDL) can be quickly burned into FPGA for testing through simple synthesis and layout, which is the mainstream technology of IC verification. FPGAs can be produced quickly, can be modified to correct errors in the program and are cheaper to manufacture. At the same time, FPGA can realize a lot of logic functions. Due to the flexible and changeable internal str...

AI Technical Summary

Problems solved by technology

Although there are portable mobile computers now, they can be easily carried and used at any time, but considering some special working environment and work costs, if we are inconvenient, or it is not allowed to use a PC to monitor the data on the transmission line Real-time monitoring of data, and forwarding and preprocessing of real-time monitoring data, then we need other equipment for data transfer and preprocessing

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