A kind of online upgrading method of dsp and fpga system

A technology for upgrading files and upgrading modes, which is applied in the directions of instruments, computing, and electrical digital data processing, etc., can solve the problems of complexity and lack of interface methods, and achieve low hardware design complexity, low software design complexity, and simple interface design Effect

Active Publication Date: 2020-05-08
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
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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

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  • A kind of online upgrading method of dsp and fpga system
  • A kind of online upgrading method of dsp and fpga system
  • A kind of online upgrading method of dsp and fpga system

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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 an online upgrading method for DSP and FPGA systems, which is used to solve the problem of online upgrading of programs in DSP and FPGA digital signal processing systems. The technical solution is to complete the interconnection between the upper computer and the DSP processor through the universal serial bus interface, and transfer the DSP and FPGA program files that need to be upgraded to the DSP processor, and the automatic upgrade algorithm of the DSP controls the flash memory of the DSP or FPGA. upgrade. A set of SPI interface bus of DSP is used to complete the hardware connection and erasing of two Flash, and the bus address decoding is completed through a multiplexer to avoid bus conflicts. The present invention simultaneously completes program upgrades of two chips, DSP and FPGA, without dismantling equipment, has simple interface, and low complexity of software and hardware design, and provides a simple and effective method for online upgrade of digital signal processing systems.

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....

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/654
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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