High-speed real-time data recording system based on fpga

Abstract

The invention relates to an FPGA-based high-speed real-time data recording system. The system comprises an FPGA chip, an NVRAM array, a NAND Flash, an SD card and an RTC real-time clock circuit, wherein a dual-port RAM, a parallel bus control unit, a PCI-E control unit, a data management unit, an NVRAM management unit, a NAND Flash management unit, an SD card management unit and an RTC management unit are arranged inside the FPGA chip, wherein the parallel bus control unit and the PCI-E control unit are connected with the dual-port RAM, communication is conducted between the NVRAM management unit and the NVRAM array, between the NAND Flash management unit and the NAND Flash, between the SD card management unit and the SD card, and between the RTC management unit and the RTC real-time clock circuit, and communication is conducted between the parallel bus control unit as well as the PCI-E control unit and an application host of a real-time control system. By the adoption of the system, high-speed real-time storage of mass data can be achieved, data sorting is achieved during data storage, trigger storage of sudden failures is achieved, real-time reading and writing are achieved, and losing of data stored when an outage occurs is avoided.

Description

technical field [0001] The invention relates to the technical field of electronic control, in particular to a high-speed real-time data recording system. Background technique [0002] The real-time control system has strict requirements on the response time of the system. In some real-time control systems, the main processor not only needs to handle various complex calculations and task scheduling, but also needs to manage various communication interfaces, which puts forward high requirements on the performance of the main processor. [0003] In the on-board real-time control system of the EMU, the main processor not only needs to run system logic, execute complex algorithms and maintain high-speed real-time communication with each execution unit, but also needs to deal with Ethernet, MVB network, CAN network, RS485 network, so the main processor The amount of information processed is quite large. In such a huge amount of data, it is necessary to record a lot of key data i...

AI Technical Summary

Problems solved by technology

In such a huge amount of data, it is necessary to record a lot of key data in real time and capture fault data. If the main processor completes the classification and storage management of all data, it will inevitably increase the burden on the main processor and affect Real-time response of main processor

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