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Virtual link memory address indexing system and method based on FPGA

A virtual link and indexing system technology, applied in database indexing, structured data retrieval, special data processing applications, etc., can solve problems such as slow query speed, achieve the effects of saving memory space, fast query speed, and saving FPGA resources

Pending Publication Date: 2022-05-13
SHANGHAI AVIATION ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention solves the problem of slow query speed in the prior art, and provides a novel FPGA-based virtual link memory address indexing system and method

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  • Virtual link memory address indexing system and method based on FPGA
  • Virtual link memory address indexing system and method based on FPGA
  • Virtual link memory address indexing system and method based on FPGA

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Embodiment Construction

[0015] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0016] See figure 1 , what is shown in the figure is an FPGA-based virtual link memory address indexing system. FPGA-based virtual link memory address index system, including virtual link memory, memory read interface, memory write interface and index management module, the index management module has an index management table, and the index management table has a configuration field and an index field . At the beginning of power-on, the index management mo...

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Abstract

The invention discloses a virtual link memory address indexing system and method based on an FPGA, the system comprises a virtual link memory, a memory read interface, a memory write interface and an index management module, an index management table is established in the index management module, the index management table is provided with a configuration domain and an index domain, the configuration domain is used for corresponding to a virtual link configuration table, and the index domain is used for corresponding to the virtual link configuration table. The index domains are used for corresponding index addresses. The method has the beneficial effects that 1, index management is carried out on the virtual link according to configuration; 2, memory space and FPGA resources are saved; and 3, the query speed is high.

Description

technical field [0001] The present invention relates to avionics full-duplex switched Ethernet (abbreviation: AFDX), in particular, an FPGA-based virtual link memory address indexing system and method. Background technique [0002] As airborne communication has higher and higher requirements for bus carrying capacity and determinism, AFDX is more and more widely used in airborne communication because of its high speed, high load and strong determinism. [0003] FPGA, or Field Programmable Array, is more and more widely used in the development of protocol chips because of its concurrent execution, fast operation speed and strong flexibility. [0004] At present, there are not many domestic manufacturers of AFDX protocol chip research and development, and in accessible academic papers, the ARM core (or other cores) integrated in the FPGA is also used to manage the index table. However, the process executed by ARM is executed sequentially, and the advantage of concurrent execu...

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Application Information

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IPC IPC(8): G06F16/22
CPCG06F16/2228G06F16/2272G06F16/2282
Inventor 张丽
Owner SHANGHAI AVIATION ELECTRIC
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