VPX parallel DSP signal processing board card based on SoC online reconstruction

Abstract

The invention discloses a VPX parallel DSP (Digital Signal Processing) board card based on SoC (System on a Chip) online reconstruction. An FPGA (Field Programmable Gate Array) chip is used as a board stage SoC controller; and two DSP chips are used as core operation chips of a DSP board card. During the practical configuration of the DSP chips, the FPGA chip used as the SoC controller can complete the dynamic re-configuration of work code by GE (Gigabit Ethernet) through the hardware resetting on the DSP and the switching on the starting mode; and the flexibility and the real-time performance during the DSP are greatly improved. The DSP chips receive two kinds of high-speed serial bus signals of SRIO (Serial Rapid Input Output) X4 and the GE transmitted through a VPX interface, repacking the transferred PCIE (Peripheral Component Interface Express) X2 high-speed serial bus signal through a PCIE exchange chip, and receives a data signal to be processed and a control instruction; or the DSP chips receive the GE protocol signal of a peripheral component through an RJ45 net port.

Description

technical field [0001] The invention belongs to the technical field of digital signal processing, and more specifically relates to a VPX parallel DSP signal processing board based on SoC online reconstruction. Background technique [0002] With the continuous development of relevant processing algorithms in the field of digital signal processing, the complexity of the algorithms is becoming more and more complex, and the amount of calculation required increases geometrically. Taking the aircraft load as an example, the integrated signal processing load platform of the aircraft implements online dynamic configuration of each unified flexible hardware module in the system according to the requirements of various comprehensive tasks, including radar detection, measurement and control communication, image processing, navigation and positioning. , photoelectric detection, etc., including different mission functions. The signal processing system needs to call the corresponding al...

AI Technical Summary

Problems solved by technology

[0005] (1) Taking FPGA as the core processing chip processing platform as an example, although high-end FPGA chips provide large parallel signal processing bandwidth, their cost is high, and their digital signal processing and computing capabilities are not as good as DSP chips.

At the same time, the design of the single-core DSP chip as the main computing chip is also difficult to provide sufficient signal throughput, and its capabilities are often limited by the limited bandwidth of the communication link

However, the FPGA+DSP design architecture is often a combination of multi-chip FPGA and multi-chip single-core DSP chips, which will inevitably increase the area of ​​the board and does not meet the current trend of miniaturization of signal processing systems. Limited by the requirements of system size and space, its design idea can no longer help the current status of high-speed, large-capacity digital signal processing

[0006] (2) The traditional digital signal processing board uses a parallel bus as the data link between the processors. Such a design has problems such as low transmission rate, low data throughput rate of the processor, and poor real-time performance.

[0007] (3) The communication between the traditional signal processing board and the upper computer of the system generally adopts a single protocol interface such as serial port, USB2.0, and 100M Ethernet. These protocols have disadvantages such as slow transmission rate or short transmission distance, which also affect data Real-time performance of transmission and command issuance

[0008] (4) The design of traditional digital signal processing boards often does not consider the online flexible reconfigurable function, that is, the signal processing board cannot use the dynamic modification of the target code to realize the dynamic reconfiguration of DSP chip resources according to different analysis and processing tasks. structure and multiplexing, so the flexibility of traditional signal processing platforms is relatively lacking

[0009] (5) Traditional signal processing boards often do not have backup data links, and lack of redundant design often results in insufficient system stability and reliability

[0010] To sum up, the traditional embedded information processing platform is difficult to take into account the size and performance, and there are many inherent defects and insurmountable design obstacles

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