General signal processing board card based on multi-core DSP (digital signal processor)

Abstract

The invention discloses a general signal processing board card based on a multi-core DSP (digital signal processor). An FPGA (field programmable gate array) serves as a master control core, and two multi-core DSP chips are connected through a high-speed serial bus and supportable to SRIO (serial rapid input / output) and PCIE (peripheral component interconnect express) protocols. Each DSP is connected with an expandable external memory and a gigabit Ethernet interface, and the DSPs are connected mutually through the high-speed serial bus and supportable to Hyperlink, SRIO and PCIE protocols. The FPGA and a VPX connector are mutually connected through a gigabit transceiver and supportable to SRIO, PCIE and Ethernet protocols. Mounting positions of an external memory chip, a DSP chip and an FPGA chip on a printed board of the general signal processing board card are compatible positions allowing placement of other chips in the series respectively and accord with 6U standards in size. The problems of poor universality, small data throughput, low storing rate and low processing speed of existing signal processing board cards are solved, and the general signal processing board card has the advantages of quickness in processing, high storing rate, large data throughput and high universality and can be widely applied to fields of communication, radar, guided missiles, remote sensing, image processing and the like.

Description

technical field [0001] The invention belongs to the technical field of digital signal processing, and mainly relates to a general digital signal processing board design technology based on a single-chip FPGA plus multi-chip multi-core DSP chips for digital signal processing, specifically a multi-core DSP-based general digital signal processing board Card, can be widely used in communications, radar, missiles, remote sensing, image processing and other fields. Background technique [0002] With the continuous development of digital signal processing technology, the complexity of algorithms in communication, radar, image processing and other fields is increasing. Usually, dedicated digital signal processing boards are used in satellite communication, airborne radar, missile-borne radar, and image processing systems. It can be used for data processing in boundary scan, image detection, target recognition, etc., but as the quality and real-time requirements of signal processing ...

AI Technical Summary

Problems solved by technology

[0004] 1. Traditional digital signal processing boards require a large number of processor chips to be connected in series in order to achieve stronger processing capabilities. The increase in the number of processor chips will inevitably occupy a larger board area, and the number of processor chips is large Sometimes it is even necessary to design multiple signal processing boards for processing, but the existing digital signal processing system is developing towards miniaturization, the system itself has limited space for signal processing boards, and the availability of traditional digital signal processing boards and practicability can no longer meet the status quo of big data processing

[0005] 2. Traditional digital signal processing boards use Flash, SRAM or SDRAM for memory expansion. Due to the shortcomings of these memories, such as low storage capacity or low transmission rate, they cannot handle large quantities of data in the process of increasing digital signal processing. high speed storage

[0006] 3. Traditional digital signal processing boards use parallel bus or universal serial bus resources to interconnect processors. Due to the low transmission rate of these bus protocols, the data throughput between processors is small and the real-time performance of the system is reduced.

[0007] 4. The upper computer control of traditional digital signal processing boards generally adopts protocol interfaces such as serial port, USB2.0, PCI, and 100M Ethernet. Because these protocols have the disadvantages of slow transmission rate or short transmission distance or both, Real-time playback of data is limited

[0008] 5. The traditional digital signal processing board generally does not consider the compatible pin package between the processor chip and other chips of the same series in the design of the printed circuit board (PCB). If the board card needs to be upgraded, the PCB needs to be redesigned circuit, prolonging the design cycle and increasing the design cost

[0009] 6. Traditional digital signal processing boards generally use custom connectors and custom board sizes, so that they can only be used in specific environments, and their versatility is not high

[0010] To sum up, the traditional digital signal processing boards have large board size, low system stability, small memory capacity and low speed, small data throughput between processors, short transmission distance and low transmission speed for host computer control, and general-purpose boards. The performance is poor, and it can no longer meet the current situation of increasing algorithm complexity and increasing data volume in the process of digital signal processing.

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