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DSP (digital signal processor) and FPGA (field programmable gate array) system on-line updating method

A technology for upgrading files and upgrading modes, which is applied in the fields of instruments, electrical digital data processing, program control devices, etc., can solve the problems of complexity and insufficient interface methods, and achieves low hardware design complexity, strong operability, and interface design. concise effect

Active Publication Date: 2017-06-30
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a simple and efficient online upgrade method for DSP and FPGA systems in order to overcome the shortcomings of the existing online upgrade method in terms of complexity and interface mode

Method used

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  • DSP (digital signal processor) and FPGA (field programmable gate array) system on-line updating method
  • DSP (digital signal processor) and FPGA (field programmable gate array) system on-line updating method
  • DSP (digital signal processor) and FPGA (field programmable gate array) system on-line updating method

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0025] According to an embodiment of the present invention, a kind of DSP and FPGA system online upgrading method of the present invention is specifically implemented as follows:

[0026] At first the chip model in the present embodiment is introduced: what the FPGA chip selects is the CycloneV series 5CEFA9F23 of Altera Company, and what its memory selects is the serial configuration Flash EPCS128 of Altera Company; what the DSP chip selects is the C674x series TMS320C6748 of TI Company, its ...

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Abstract

The invention discloses a DSP (digital signal processor) and FPGA (field programmable gate array) system on-line updating method, which is used for solving the problem of program online updating of a DSP and FPGA digital signal processing system. The method has the technical scheme that through a universal serial bus interface, the interconnection between a host computer and a DSP is completed; a DSP and FPGA program file to be updated is transmitted to the DSP; a Flash memory of the DSP or the FPGA is controlled to be updated by a DSP automatic updating algorithm; one group of SPI interface bus of the DSP is used for completing the hardware connection and erasing and writing of two Flashes; the bus address coding is completed through a multiplexer; the bus conflict is avoided. The program updating of the two chips of DSP and FPGA is simultaneously completed under the condition without dismounting the equipment; the interface is simple; the software and hardware design complexity is low; a simple and effective method is provided for the online updating of the digital signal processing system.

Description

technical field [0001] The invention relates to the technical field of digital signal processing, in particular to an online upgrading method for DSP and FPGA systems. Background technique [0002] In the current digital signal processing system, the DSP+FPGA dual-chip combination that can simultaneously complete logic signal processing and high-efficiency data calculation is a common choice. DSP and FPGA programs are usually stored in Flash, and NorFlash with SPI interface is popular because of its less bus bit width and simple hardware design. The usual program upgrade method is to use the JTAG download line to complete the update of the program in the Flash by using the dedicated JTAG interface of the DSP and FPGA after disassembling the device. However, in many applications, it is complicated and cumbersome to disassemble the device, so there is a need for a method for updating programs online by using a general-purpose serial interface without disassembling the device....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
CPCG06F8/654
Inventor 刘盟超王振岭赵彦雷李新亮王黎
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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