CN103617054A

CN103617054A - Device for remotely loading FPGA (field programmable gate array) configuration files and loading method

Info

Publication number: CN103617054A
Application number: CN201310574650.2A
Authority: CN
Inventors: 王经典; 王嘉良; 张隐逊
Original assignee: China Aeronautical Radio Electronics Research Institute
Current assignee: China Aeronautical Radio Electronics Research Institute
Priority date: 2013-11-15
Filing date: 2013-11-15
Publication date: 2014-03-05

Abstract

The invention discloses a device for remotely loading FPGA (field programmable gate array) configuration files. The device comprises a loading device, an FPGA board, an Ethernet interface and a configuration storage. The FPGA board is a module mounted in a case and with the architecture of 'universal processor circuit and FPGA'. The loading device is in remote connection with the FPGA board through the Ethernet interface. The Ethernet interface in the module is led to an interface of a case panel connector. A main-frame interface, namely a PCIE (peripheral component interface express) interface, of the universal processor circuit is connected with an FPGA. The other end of the FPGA is connected with the configuration storage. On the basis of original board hardware, loading data are acquired through the Ethernet interface, remote upgrade is realized through the Ethernet interface which is lead out of the case, and loading of the FPGA configuration files can be realized without taking-out of the case from an airplane, opening of a cover plate of the case and pulling-out of the module, so that maintainability is greatly improved, and wide application range is realized.

Description

A kind of device and loading method of remote loading FPGA configuration file

Technical field

The present invention relates to avionic device field, be specifically related to a kind of implementation method of remote loading FPGA configuration file.

Background technology

In avionic device, the module application of " general processor+field programmable logic FPGA " framework is very extensive.Wherein general processor, as General Porcess Unit, adopts same hardware, execution different software to realize difference in functionality thereby be beneficial to, and has easy-to-use feature flexibly.FPGA(Field Programmable Gate Array) design specialized logic, as specialized processing units, possesses the real-time feature of high speed.And after making modification in the situations such as fpga logic design changes in user's request, discovery potential problems, need to carry out the upgrading of fpga logic, complete the load operation of FPGA configuration file.In the FPGA configuration file loading procedure of Xilinx, loading equipemtn is by JTAG(Joint Test Action Group) link is connected correctly with FPGA device after, by loading software, by FPGA configuration data, the steering logic by FPGA device writes in config memory.

As shown in Figure 1, provide FPGA configuration file and loaded connection diagram.Loading equipemtn is generally has installed the computing machine that loads software, and FPGA board comprises general processor circuit, FPGA device, the circuit such as config memory for FPGA.The circuit that does not relate to FPGA loading is not described herein.In the time of need to loading FPGA configuration file, loading equipemtn and FPGA board connect by JTAG, after energising, enable the loading software of loading equipemtn, and the device on scanning JTAG link, adds load document, then starts configuration file programming process.After programming finishes, check that whether the source file that in config memory, whether file uses with loading equipemtn is consistent, unanimously loading configuration file completes.

Due to the contact point Limited Number of Aerial Electronic Equipment aviation plug, the debugging interface of general processor can be drawn cabinet, and jtag interface is closed in cabinet.And fpga logic design needs to carry out the upgrading of fpga logic make modification in the situations such as user's request variation, discovery potential problems after.During upgrading, just from aircraft, take out cabinet, open cabinet cover plate, even extract module and could upgrade, be not easy to maintenance upgrade.

Summary of the invention

The load mode of the FPGA configuration file existing for prior art is not easy to the defect of maintenance upgrade when reality is used very much, the object of the present invention is to provide a kind of implementation method of remote loading FPGA configuration file.The inventive method, on original board hardware foundation, has increased by Ethernet interface and has obtained loading data, writes the function of config memory via host PC IE interface, increases substantially maintainability.

Goal of the invention of the present invention is achieved by the following technical solution.

A kind of device of supporting remote loading FPGA configuration file, comprise loading equipemtn, FPGA board, Ethernet interface, config memory, FPGA board is the module that is installed on " general processor+field programmable logic FPGA " framework of cabinet inside, the general processor debugging interface of this inside modules, it is Ethernet interface, lead on the port of cabinet panel connector, the host interface of general processor, i.e. PCIE(PCI-Express) interface is connected with FPGA, and the FPGA other end is interconnected with config memory.

The using method of supporting the device of remote loading FPGA configuration file, loading method is as follows:

1, loading equipemtn is connected by Ethernet interface is long-range with FPGA board;

2, loading equipemtn and FPGA board energising, checks whether successful connection of ethernet link;

3,, after Ethernet successful connection, the loading software of start-up loading equipment, imports configuration file the storage unit of general processor circuit;

4, general processor circuit finishes receiving after profile data, by PCIE host interface to FPGA device data writing;

5, fpga logic is after receiving profile data, to config memory data writing;

6, after configuration file all writes, the data of being read back in config memory by general processor circuit, and deliver to loading equipemtn;

7, relatively whether configuration file source data is consistent with readback data for loading equipemtn, unanimously loads successfully.

The present invention supports the device of remote loading FPGA configuration file, on original board hardware foundation, has increased by Ethernet interface and has obtained loading data, writes the function of config memory via host PC IE interface, is convenient to safeguard and upgrading.Apparatus of the present invention can be carried out remote upgrade through drawing the Ethernet interface of cabinet, without taking out cabinet from aircraft, without opening cabinet cover plate, without extracting module, can realize the loading of FPGA configuration file, increase substantially maintainability, applied widely, be adapted to the fpga logic upgrading of " general processor+FPGA " framework in many off-the-shelf items, be also applicable to the research and development of new projects, there is significant market outlook and economic benefit.

Accompanying drawing explanation

Fig. 1 is that existing FPGA configuration file loads connection diagram;

Fig. 2 is the apparatus structure schematic diagram that the present invention supports remote loading FPGA configuration file.

Embodiment

Below in conjunction with accompanying drawing 2, further illustrate the present invention and how to realize.

Embodiment

As shown in Figure 2, a kind of device of supporting remote loading FPGA configuration file, comprise loading equipemtn, FPGA board, Ethernet interface, config memory, FPGA board is the module that is installed on " general processor circuit+field programmable logic FPGA " framework of cabinet inside, the general processor debugging interface of this inside modules, be Ethernet interface, lead on the port of cabinet panel connector the host interface of general processor, be that PCIE interface is connected with FPGA, the FPGA other end is interconnected with config memory.

During use, first loading equipemtn is connected by Ethernet interface is long-range with FPGA board; The energising of loading equipemtn and FPGA board, checks whether successful connection of ethernet link; After Ethernet successful connection, the loading software of start-up loading equipment, imports configuration file the storage unit of general processor circuit; General processor circuit finishes receiving after profile data, by PCIE host interface to FPGA device data writing; Fpga logic is after receiving profile data, to config memory data writing; After configuration file all writes, the data of being read back in config memory by general processor circuit, and deliver to loading equipemtn; Whether loading equipemtn relatively configuration file source data is consistent with readback data, unanimously loads successfully.

Claims

1. a device of supporting remote loading FPGA configuration file, comprise loading equipemtn, FPGA board, Ethernet interface, config memory, it is characterized in that: FPGA board is the module that is installed on " general processor circuit+field programmable logic FPGA " framework of cabinet inside, loading equipemtn is connected by Ethernet interface is long-range with FPGA board, the Ethernet interface of inside modules leads on the port of cabinet panel connector, the host interface of general processor circuit is that PCIE interface is connected with FPGA, and the FPGA other end is interconnected with config memory.

2. a kind of device of supporting remote loading FPGA configuration file according to claim 1, is characterized in that: described loading equipemtn is that the computing machine that loads software has been installed.

3. the loading method of support remote loading FPGA configuration file device according to claim 1 and 2, comprises the steps:

1), loading equipemtn is connected by Ethernet interface is long-range with FPGA board;

2), the energising of loading equipemtn and FPGA board, check whether successful connection of ethernet link;

3), after Ethernet successful connection, the loading software of start-up loading equipment, imports configuration file the storage unit of general processor circuit;

4), general processor finishes receiving after profile data, by PCIE host interface to FPGA device data writing;

5), fpga logic is after receiving profile data, to config memory data writing;

6), after configuration file all writes, data of being read back in config memory by general processor circuit, and deliver to loading equipemtn;

7), relatively whether configuration file source data consistent with readback data for loading equipemtn, unanimously load successfully.