CN103905281A - FC-AE-1553 bus node card capable of interchangeably achieving functions of network controller and network terminal - Google Patents
FC-AE-1553 bus node card capable of interchangeably achieving functions of network controller and network terminal Download PDFInfo
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Abstract
The invention relates to an FC-AE-1553 bus node card capable of interchangeably achieving the functions of a network controller and a network terminal, and belongs to the technical field of high-speed bus interconnection. The FC-AE-1553 bus node card aims to solve the problems that existing FC-AE-1553 bus node cards need to be set respectively to achieve the function of the NC or the function of the NT, configuration is complex, and the function is single. The FC-AE-1553 bus node card is mainly formed by an FC-AE protocol processing unit and an application equipment interface unit, and the functions of two sets of FC-AE-1553 bus nodes are achieved by selecting different configurations on the FC-AE-1553 bus node card, that is, the FC-AE-1553 bus node card has the functions of the NC and the NT of the an FC-AE-1553 network, can serve as the FC-AE-1553 bus node based on a PCIE interface to carry out communication with an upper computer and can also serve as the FC-AE-1553 bus node based on an embedded mode to be connected with an external device. The FC-AE-1553 bus node card is capable of achieving the functions of the two sets of the node cards.
Description
Technical field
The present invention relates to the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function, belong to high-speed bus interconnection technique field.
Background technology
Along with the fast development of electronic technology, aerospace system equipment is also progressively promoting for the requirement of electronic system.The military bus standard of original MIL-STD-1553B can not satisfy the demands.FC-AE-1553 bus, due to can compatible original MIL-STD-1553B bus apparatus, have merged again the high network performance of optical-fibre channel technology, and has become gradually avionics bus standard of new generation.Along with the further investigation to FC-AE-1553 technology, FC-AE-1553 equipment emerges in multitude, and FC-AE-1553 bus node card occurs based on such background just.
FC-AE-1553 bus node card is formulated based on FC-AE-1553 bus protocol, and FC-AE-1553 bus protocol, take optical-fibre channel as basis, presents a kind of hierarchy, as shown in Figure 3: the underlying protocol of FC-AE-1553 bus protocol is fiber channel protocol.In logic, fiber channel protocol is made up of a series of layer functions, and the interface between each layer is defined.Be similar to the seven layer model of OSI and the four-layer structure model of TCP/IP, FC agreement has five tier model architectures.FC-0 is interface and Media layer, is used for defining physical link and characteristic; FC-1 is transmission protocol layer, has defined coding/decoding scheme, byte of sync and ordered set; FC-2 is chain circuit control layer, has defined and has transmitted into the regular and machine-processed of blocks of data; FC-3 is generic service layer; FC-4 is agreement mapping layer, and definition upper-layer protocol is mapped to the method for lower layer protocol.For FC-AE-1553 bus, FC-AE-1553 is high-rise shadowing agreement.The design of FC-AE-1553 bus node card is mainly from the hierarchy of optical-fibre channel, for the feature of FC-AE-1553 agreement, the fiber channel interface of final design is started to be mapped to FC-AE-1553 bus from FC-2 layer, final realization merged FC agreement mutually with 1553B bussing technique, completes the design of FC-AE-1553 bus node card.
FC-AE-1553 bus node card is mainly realized the data between fiber buss and application apparatus in FC-AE-1553 bus network and is connected, and can apply FC-AE fiber optic network at a high speed and carries out transfer of data with highly reliable FC-AE agreement to meet between multiple application apparatuss.
In FC-AE-1553 bus network, there are two kinds of nodes: network controller NC and network terminal NT.NC, as network controller, is the promoter of exchanges data; NT is the NT in network, is the respondent of data exchange command.Any one node in FC-AE-1553 bus network all not only can be used as NC but also can be used as NT, and the role of NC and NT can change mutually.NC is connected with host computer, realizes man-machine interaction by host computer operation interface, and therefore FC-AE-1553 bus node card need possess the function of communicating by letter with host computer.During as NT, FC-AE-1553 bus node card is connected with peripheral hardware, should possess the function of communicating by letter with peripheral data, existing FC-AE-1553 bus node is stuck in while realizing network controller NC and network terminal NT, need to configure respectively different FC-AE-1553 bus node cards to realize respectively network controller NC or network terminal NT function, have the defect of configuration complexity, function singleness.
Summary of the invention
The present invention seeks to arrange respectively to realize network controller NC or network terminal NT function in order to solve existing FC-AE-1553 bus node calorie requirement, the problem that has configuration complexity and function singleness, provides a kind of interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function.
The interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function of the present invention, it comprises FC-AE protocol processing unit, PCIE interface, RS422 interface, optical fiber interface and power interface,
FC-AE protocol processing unit comprises master controller, logic controller, optical fiber communication modules and memory space expansion module,
Power interface provides the interface of power supply for master controller, logic controller and optical fiber communication modules, optical fiber communication modules andlogic control device is connected with optical fiber interface, and logic controller is also connected with PCIE interface, RS422 interface, master controller and memory space expansion module;
Master controller is for being mapped to FC-AE-1553 bus protocol by the fiber channel protocol of FC-AE-1553 bus protocol bottom, form FC-AE-1553 standard agreement frame, define the transformat of FC-AE-1553 standard agreement frame simultaneously and control the exchanges data in FC-AE-1553 bus network;
Logic controller is for being mapped to logic interfacing by the FC-2 layer logical AND FC-4 layer upper-layer protocol of the fiber channel protocol of FC-AE-1553 bus protocol, and distribution and the scheduling of the local bus that is connected with master controller of realization;
Optical fiber communication modules is used for the described physical interface of FC-0 layer of the fiber channel protocol of realizing FC-AE-1553 bus protocol, completes the mutual conversion of photosignal;
Memory space expansion module is as the expansion of logic controller memory block, for data cached and program;
Optical fiber interface is for realizing being connected of optical fiber communication modules and optical fiber, and PCIE interface and RS422 interface are Applied layer interface;
When described bus node card is as network controller NC, logic controller is connected with host computer by PCIE interface, carries out transfer of data, realizes the remote monitoring of host computer;
When described bus node card is as network terminal NT, logic controller is connected with peripheral hardware by RS422 interface, carries out transfer of data, realizes the exchanges data with peripheral hardware;
Described bus node card includes as the data transmission procedure of network controller NC or network terminal NT: the packet that user is passed to the data of coming and be packaged into FC-AE-1553 compatibility, then sends by the optical fiber interface being connected with optical fiber communication modules; The data that optical fiber communication modules is received are converted to the Frame of FC-AE-1553 form after decoding according to respective protocol, frame data are peeled off layer by layer, send application peripheral hardware after extracted valid data information to.
Described bus node card is as network controller NC, and logic controller is connected with host computer by PCIE interface, and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: control data, order data, failure diagnosis data are sent to logic controller via PCIE interface, be transferred to master controller via logic controller, in master controller, be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller, logic controller carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment, after optical fiber communication modules converts light signal to, are sent in optical fiber via optical fiber interface;
The detailed process of data receiver is: light signal is sent to optical fiber communication modules via optical fiber interface, optical fiber communication modules converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller, then in master controller, be decoded into standard FC-AE-1553 packet, master controller extracted valid data information in FC-AE-1553 packet also sends logic controller to again, finally sends host computer by logic controller to through PCIE interface.
Described bus node card is as network terminal NT, and logic controller is connected with peripheral hardware by RS422 interface, and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: the data of application peripheral hardware are transferred to logic controller via RS422 interface, be transferred to master controller via logic controller, in master controller, be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller, logic controller carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment, after optical fiber communication modules converts light signal to, are sent in optical fiber via optical fiber interface;
The detailed process of data receiver is: light signal is sent to optical fiber communication modules via optical fiber interface, optical fiber communication modules converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller, then in master controller, be decoded into standard FC-AE-1553 packet, master controller extracted valid data information in FC-AE-1553 packet also sends logic controller to again, finally sends application peripheral hardware by logic controller to through RS422 interface.
Advantage of the present invention: FC-AE-1553 bus node card of the present invention is mainly made up of FC-AE protocol processing unit and application apparatus interface unit.The present invention can be by selecting different Configuration two to overlap the function of FC-AE-1553 bus node on a FC-AE-1553 bus node card, it is the function that this FC-AE-1553 bus node card has FC-AE-1553 network N C and NT concurrently, both the FC-AE-1553 bus node having can be used as based on PCIE interface is communicated by letter with host computer, can be used as again based on embedded FC-AE-1553 bus node and connect peripheral hardware, met the fervent demand of engineering field to FC-AE-1553 bus node equipment.Be applicable to the interconnected and BIT technical field of high-speed bus.
The present invention is when as FC-AE-1553 bus node based on PCIE interface, can control and monitor the work of each node in FC-AE bus network, complete the data communication with each bus node, and realize the test functions such as power-on self-test, cycle self check and the failure diagnosis of each bus node by host computer, realize the function such as parameter configuration, data injection of universal measurement equipment by bus node.
Accompanying drawing explanation
Fig. 1 is the theory diagram of FC-AE-1553 bus node card of the present invention;
Fig. 2 is the logic diagram of the specific embodiment of the invention five;
Fig. 3 is the hierarchy schematic diagram of FC-AE-1553 bus protocol.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function described in present embodiment, it comprises FC-AE protocol processing unit 1, PCIE interface 2, RS422 interface 3, optical fiber interface 4 and power interface 5
FC-AE protocol processing unit 1 comprises master controller 1-1, logic controller 1-2, optical fiber communication modules 1-3 and memory space expansion module 1-4,
Power interface 5 provides the interface of power supply for master controller 1-1, logic controller 1-2 and optical fiber communication modules 1-3, optical fiber communication modules 1-3 andlogic control device 1-2 is connected with optical fiber interface 4, and logic controller 1-2 is also connected with PCIE interface 2, RS422 interface 3, master controller 1-1 and memory space expansion module 1-4;
Master controller 1-1 is for being mapped to FC-AE-1553 bus protocol by the fiber channel protocol of FC-AE-1553 bus protocol bottom, form FC-AE-1553 standard agreement frame, define the transformat of FC-AE-1553 standard agreement frame simultaneously and control the exchanges data in FC-AE-1553 bus network;
Logic controller 1-2 is for being mapped to logic interfacing by the FC-2 layer logical AND FC-4 layer upper-layer protocol of the fiber channel protocol of FC-AE-1553 bus protocol, and distribution and the scheduling of the local bus that is connected with master controller 1-1 of realization;
Optical fiber communication modules 1-3 is used for the described physical interface of FC-0 layer of the fiber channel protocol of realizing FC-AE-1553 bus protocol, completes the mutual conversion of photosignal;
Memory space expansion module 1-4 is as the expansion of logic controller 1-2 memory block, for data cached and program;
Optical fiber interface 4 is for realizing being connected of optical fiber communication modules 1-3 and optical fiber, and PCIE interface 2 and RS422 interface 3 are Applied layer interface;
When described bus node card is as network controller NC, logic controller 1-2 is connected with host computer by PCIE interface 2, carries out transfer of data, realizes the remote monitoring of host computer;
When described bus node card is as network terminal NT, logic controller 1-2 is connected with peripheral hardware by RS422 interface 3, carries out transfer of data, realizes the exchanges data with peripheral hardware;
Described bus node card includes as the data transmission procedure of network controller NC or network terminal NT: the packet that user is passed to the data of coming and be packaged into FC-AE-1553 compatibility, then sends by the optical fiber interface 4 being connected with optical fiber communication modules 1-3; The data that optical fiber communication modules 1-3 is received are converted to the Frame of FC-AE-1553 form after decoding according to respective protocol, frame data are peeled off layer by layer, send application peripheral hardware after extracted valid data information to.
In present embodiment, FC-AE protocol processing unit 1 mainly realizes opto-electronic conversion and fiber data and user data is changed mutually.Optical fiber interface 4 mainly comprises the optical fiber connector and optical fiber radome etc.Logic controller 1-2 is the core logic device of bus node card, and master controller 1-1 is for realizing the Core Feature of FC-AE-1553 bus node card.
Embodiment two: present embodiment is described below in conjunction with Fig. 1, present embodiment is described further execution mode one, described in present embodiment, bus node card is as network controller NC, logic controller 1-2 is connected with host computer by PCIE interface 2, and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: control data, order data, failure diagnosis data are sent to logic controller 1-2 via PCIE interface 2, be transferred to master controller 1-1 via logic controller 1-2, in master controller 1-1, be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller 1-2, logic controller 1-2 carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment are converted to after light signal through optical fiber communication modules 1-3, be sent in optical fiber via optical fiber interface 4;
The detailed process of data receiver is: light signal is sent to optical fiber communication modules 1-3 via optical fiber interface 4, optical fiber communication modules 1-3 converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller 1-2, then in master controller 1-1, be decoded into standard FC-AE-1553 packet, master controller 1-1 extracted valid data information in FC-AE-1553 packet also sends logic controller 1-2 to again, finally sends host computer by logic controller 1-2 to through PCIE interface 2.
Embodiment three: present embodiment is described below in conjunction with Fig. 1, present embodiment is described further execution mode one or two, described in present embodiment, bus node card is as network terminal NT, logic controller 1-2 is connected with peripheral hardware by RS422 interface 3, and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: the data of application peripheral hardware are transferred to logic controller 1-2 via RS422 interface 3, be transferred to master controller 1-1 via logic controller 1-2, in master controller 1-1, be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller 1-2, logic controller 1-2 carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment are converted to after light signal through optical fiber communication modules 1-3, be sent in optical fiber via optical fiber interface 4;
The detailed process of data receiver is: light signal is sent to optical fiber communication modules 1-3 via optical fiber interface 4, optical fiber communication modules 1-3 converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller 1-2, then in master controller 1-1, be decoded into standard FC-AE-1553 packet, master controller 1-1 extracted valid data information in FC-AE-1553 packet also sends logic controller 1-2 to again, finally sends application peripheral hardware by logic controller 1-2 to through RS422 interface 3.
Embodiment four: present embodiment is described below in conjunction with Fig. 1, present embodiment is described further execution mode one, two or three, described in present embodiment, logic controller 1-2 adopts programmable logic controller (PLC) FPGA to realize, and its model is XC6VLX240T-1FFG1156.
Described programmable logic controller (PLC) FPGA adopts Xilinx Virtex-6 chip to realize.
Embodiment five: present embodiment is described below in conjunction with Fig. 1 and Fig. 2, present embodiment is described further execution mode one, two, three or four, and master controller 1-1 comprises DSP digital signal processor 1-11, SDRAM1-12 and FLASH1-13 described in present embodiment;
Logic controller 1-2 comprises fiber optic protocols transmitting-receiving logical one-21, buffering area control logic 1-22, PCIE interface logic 1-23, shared storage interface logic 1-24, local bus 1-25, local bus interface logical one-26 and two 422 bus control logic 1-27;
Optical fiber communication modules 1-3 has four passages, adopts four identical integrated module of optical transceiver SFP to realize;
Memory space expansion module 1-4 comprises DDR SDRAM1-41 and Platform FLASH1-42;
RS422 interface 3 has two passages, and each passage comprises 422 interface 3-1 and level transferring chip 3-2;
Fiber optic protocols transmitting-receiving logical one-21 have the identical optical-fibre channel in four tunnels, an integrated module of optical transceiver SFP of the corresponding connection of each road optical-fibre channel, the identical optical-fibre channel in four tunnels all connects local bus 1-25, and local bus 1-25 also connects buffering area control logic 1-22, shared storage interface logic 1-24, local bus interface logical one-26 and two 422 bus control logic 1-27;
Buffering area control logic 1-22 connects respectively DDR SDRAM1-41 and Platform FLASH1-42;
Shared storage interface logic 1-24 connects PCIE interface logic 1-23, and PCIE interface logic 1-23 connects PCIE interface 2;
Local bus interface logical one-26 connect DSP digital signal processor 1-11, and DSP digital signal processor 1-11 connects respectively SDRAM1-12 and FLASH1-13;
A corresponding level transferring chip 3-2, the 422 interface 3-1 of the corresponding connection of level transferring chip 3-2 of connecting of each 422 bus control logic 1-27;
PCIE interface logic 1-23 is for realizing being connected of PCIE interface 2 and shared memory interface logical one-24, and shared storage interface logic 1-24 is used for that PCIE interface 2 is converted to unified memory access interface and is mounted to local bus 1-25;
422 bus control logic 1-27 are for being mounted to local bus 1-25 by RS422 interface 3;
Buffering area control logic 1-22 is used for DDR SDRAM1-41 and Platform FLASH1-42 to be mounted to local bus 1-25,
Fiber optic protocols transmitting-receiving logical one-21 are for realizing FC-2 and the FC-4 layer of optical fiber transceiving agreement, realize the conversion of link layer data frame format, definition link layer data transmission mechanism, realize CRC check, data traffic control, define the interface to FC-AE-1553 agreement by optical-fibre channel data-mapping simultaneously, and optical-fibre channel data are sent to local bus 1-25;
Local bus interface realizes logical one-26 being connected of DSP digital signal processor 1-11 and local bus 1-25;
SDRAM1-12 is for realizing the data buffer storage of DSP digital signal processor 1-11; FLASH1-13 is used for storing the sheet internal program of DSP digital signal processor 1-11, does not lose with the program power down that guarantees to be loaded in sheet;
DDR SDRAM1-41 is used for realizing the data buffer storage of logic controller 1-2; Platform FLASH1-42 is used for the sheet internal program of stored logic controller 1-2, does not lose with the program power down that guarantees to be loaded in sheet.
In present embodiment, SDRAM1-12 is synchronous DRAM, and FLASH1-13 is flash memory, and DDR SDRAM1-41 is Double Data Rate synchronous dynamic random access memory, and Platform FLASH1-42 is configurable memory.The model of DDR SDRAM1-41 is DDR3SODIMM, is produced by JEDEC company.The model of Platform FLASH1-42 is XCF128X, is produced by XILINX company.
It is the chip realization of SFP (22)-LX-SM that integrated module of optical transceiver SFP adopts the model of Huawei Company.Integrated module of optical transceiver SFP is connected on bus node card by the optical fiber connector, by carrying optical fiber transceiving passage slot grafting incoming fiber optic.
The model of DSP digital signal processor 1-11 is TMS320DM642, is produced by TI company; The model of SDRAM1-12 is IS42S32400, is produced by ISSI company; The model of FLASH1-13 is S29GL512P90TFI01, is produced by SPANSION company.
The eight passage PCIE interface 2 end points IP kernels realizations that PCIE interface logic 1-23 carries by calling Xilinx Virtex-6 in FPGA, and be connected with the PCIE slot of host computer mainboard by the golden finger on PCIE interface 2 boards.RS422 interface 3 adopts 2 channels designs, and baud rate is customizable, mainly comprises 422 interface 3-1 and level transferring chip 3-2, and RS422 interface 3 is connected by 422 bus control logic 1-27 andlogic control device 1-2 of FPGA inside.The model of level transferring chip 3-2 is MAX488ESA, is produced by MAXIM company.
Local bus 1-25 is the transfer of data hinge of logic controller 1-2, and it is by the interrupt arbitrage bus right to use.
In present embodiment, when FC-AE-1553 bus node card is during as network controller NC, data transmission procedure is as follows:
Take receive path as example: the light signal in optical fiber carries out opto-electronic conversion through integrated module of optical transceiver SFP and becomes after digital electric signal, send into four optical-fibre channels of fiber optic protocols transmitting-receiving logical one-21, in fiber optic protocols transmitting-receiving logical one-21, be decoded into link layer fiber data frame and send into local bus 1-25 by FC-4 layer mapping logic interface, local bus 1-25 interrupts controlling data is sent to and in DSP digital signal processor 1-11, is decoded into standard FC-AE-1553 packet extracted valid data.The operations such as test such as finally valid data are sent to shared storage interface logic 1-24 through local bus 1-25, finally import host computer into, host computer receives data, power-on self-test, cycle self check and the failure diagnosis of execution bus node.Data transmission procedure is contrary with the receiving course of receive path.
When FC-AE-1553 bus node card is during as network terminal NT, data transmission procedure is as follows:
Take sendaisle as example: peripheral data is sent into local bus 1-25 through 422 interface 3-1, level transferring chip 3-2 and 422 bus control logic 1-27, local bus 1-25 interrupts controlling data is sent to and in DSP digital signal processor 1-11, is packaged into standard FC-AE-1553 packet, send fiber optic protocols transmitting-receiving logical one-21 to through local bus 1-25 again, in fiber optic protocols transmitting-receiving logical one-21, convert fiber data frame to and be sent to optical fiber communication modules 1-3, converting light signal to and send in optical fiber.Its DRP data reception process is contrary with the process of transmitting of sendaisle.
Claims (5)
1. an interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function, it is characterized in that, it comprises FC-AE protocol processing unit (1), PCIE interface (2), RS422 interface (3), optical fiber interface (4) and power interface (5)
FC-AE protocol processing unit (1) comprises master controller (1-1), logic controller (1-2), optical fiber communication modules (1-3) and memory space expansion module (1-4),
Power interface (5) is the interface that master controller (1-1), logic controller (1-2) and optical fiber communication modules (1-3) provide power supply, optical fiber communication modules (1-3) andlogic control device (1-2) is connected with optical fiber interface (4), and logic controller (1-2) is also connected with PCIE interface (2), RS422 interface (3), master controller (1-1) and memory space expansion module (1-4);
Master controller (1-1) is for being mapped to FC-AE-1553 bus protocol by the fiber channel protocol of FC-AE-1553 bus protocol bottom, form FC-AE-1553 standard agreement frame, define the transformat of FC-AE-1553 standard agreement frame simultaneously and control the exchanges data in FC-AE-1553 bus network;
Logic controller (1-2) is for the FC-2 layer logical AND FC-4 layer upper-layer protocol of the fiber channel protocol of FC-AE-1553 bus protocol is mapped to logic interfacing, and distribution and the scheduling of the local bus that is connected with master controller (1-1) of realization;
Optical fiber communication modules (1-3), for realizing the described physical interface of FC-0 layer of fiber channel protocol of FC-AE-1553 bus protocol, completes the mutual conversion of photosignal;
Memory space expansion module (1-4) is as the expansion of logic controller (1-2) memory block, for data cached and program;
Optical fiber interface (4) is for realizing being connected of optical fiber communication modules (1-3) and optical fiber, and PCIE interface (2) and RS422 interface (3) are Applied layer interface;
When described bus node card is as network controller NC, logic controller (1-2) is connected with host computer by PCIE interface (2), carries out transfer of data, realizes the remote monitoring of host computer;
When described bus node card is as network terminal NT, logic controller (1-2) is connected with peripheral hardware by RS422 interface (3), carries out transfer of data, realizes the exchanges data with peripheral hardware;
Described bus node card includes as the data transmission procedure of network controller NC or network terminal NT: the packet that user is passed to the data of coming and be packaged into FC-AE-1553 compatibility, then sends by the optical fiber interface (4) being connected with optical fiber communication modules (1-3); The data that optical fiber communication modules (1-3) is received are converted to the Frame of FC-AE-1553 form after decoding according to respective protocol, frame data are peeled off layer by layer, send application peripheral hardware after extracted valid data information to.
2. the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function according to claim 1, it is characterized in that, described bus node card is as network controller NC, logic controller (1-2) is connected with host computer by PCIE interface (2), and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: control data, order data, failure diagnosis data are sent to logic controller (1-2) via PCIE interface (2), be transferred to master controller (1-1) via logic controller (1-2), in master controller (1-1), be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller (1-2), logic controller (1-2) carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment are converted to after light signal through optical fiber communication modules (1-3), be sent in optical fiber via optical fiber interface (4),
The detailed process of data receiver is: light signal is sent to optical fiber communication modules (1-3) via optical fiber interface (4), optical fiber communication modules (1-3) converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller (1-2), then in master controller (1-1), be decoded into standard FC-AE-1553 packet, master controller (1-1) extracted valid data information in FC-AE-1553 packet also sends logic controller (1-2) again to, finally send host computer by logic controller (1-2) to through PCIE interface (2).
3. the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function according to claim 1 and 2, it is characterized in that, described bus node card is as network terminal NT, logic controller (1-2) is connected with peripheral hardware by RS422 interface (3), and the detailed process of carrying out transfer of data is:
Described transfer of data comprises that data send and data receiver:
The detailed process that data send is: the data of application peripheral hardware are transferred to logic controller (1-2) via RS422 interface (3), be transferred to master controller (1-1) via logic controller (1-2), in master controller (1-1), be packaged into standard FC-AE-1553 packet, again standard FC-AE-1553 packet is sent back to logic controller (1-2), logic controller (1-2) carries out fiber channel protocol processing to the standard FC-AE-1553 packet receiving, data after treatment are converted to after light signal through optical fiber communication modules (1-3), be sent in optical fiber via optical fiber interface (4),
The detailed process of data receiver is: light signal is sent to optical fiber communication modules (1-3) via optical fiber interface (4), optical fiber communication modules (1-3) converts light signal to digital electric signal, digital electric signal becomes standard link layer blocks of data through optical-fibre channel logical decode in logic controller (1-2), then in master controller (1-1), be decoded into standard FC-AE-1553 packet, master controller (1-1) extracted valid data information in FC-AE-1553 packet also sends logic controller (1-2) again to, finally send application peripheral hardware by logic controller (1-2) to through RS422 interface (3).
4. the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function according to claim 3, it is characterized in that, described logic controller (1-2) adopts programmable logic controller (PLC) FPGA to realize, and its model is XC6VLX240T-1FFG1156.
5. the interchangeable FC-AE-1553 bus node card of realizing network controller and network termination function according to claim 4, is characterized in that,
Master controller (1-1) comprises DSP digital signal processor (1-11), SDRAM (1-12) and FLASH (1-13);
Logic controller (1-2) comprises fiber optic protocols transmitting-receiving logic (1-21), buffering area control logic (1-22), PCIE interface logic (1-23), shared storage interface logic (1-24), local bus (1-25), local bus interface's logic (1-26) and two 422 bus control logics (1-27);
Optical fiber communication modules (1-3) has four passages, adopts four identical integrated module of optical transceiver SFP to realize;
Memory space expansion module (1-4) comprises DDR SDRAM (1-41) and Platform FLASH (1-42);
RS422 interface (3) has two passages, and each passage comprises 422 interfaces (3-1) and level transferring chip (3-2);
Fiber optic protocols transmitting-receiving logic (1-21) has the identical optical-fibre channel in four tunnels, an integrated module of optical transceiver SFP of the corresponding connection of each road optical-fibre channel, the identical optical-fibre channel in four tunnels all connects local bus (1-25), and local bus (1-25) also connects buffering area control logic (1-22), shared storage interface logic (1-24), local bus interface's logic (1-26) and two 422 bus control logics (1-27);
Buffering area control logic (1-22) connects respectively DDR SDRAM (1-41) and Platform FLASH (1-42);
Shared storage interface logic (1-24) connects PCIE interface logic (1-23), and PCIE interface logic (1-23) connects PCIE interface (2);
Local bus interface's logic (1-26) connects DSP digital signal processor (1-11), and DSP digital signal processor (1-11) connects respectively SDRAM (1-12) and FLASH (1-13);
The corresponding level transferring chip (3-2) that connects of each 422 bus control logics (1-27), corresponding 422 interfaces (3-1) that connect of level transferring chip (3-2);
PCIE interface logic (1-23) is for realizing being connected of PCIE interface (2) and shared memory interface logic (1-24), and shared storage interface logic (1-24) is mounted to local bus (1-25) for PCIE interface (2) is converted to unified memory access interface;
422 bus control logics (1-27) are for being mounted to local bus (1-25) by RS422 interface (3);
Buffering area control logic (1-22) is for DDR SDRAM (1-41) and Platform FLASH (1-42) are mounted to local bus (1-25),
Fiber optic protocols transmitting-receiving logic (1-21) is for completing FC-2 data link layer and the FC-4 agreement mapping layer of fiber channel protocol, realize the conversion of link layer data frame format, definition link layer data transmission mechanism, realize CRC check, data traffic control, define the interface to FC-AE-1553 agreement by optical-fibre channel data-mapping simultaneously, and optical-fibre channel data are sent to local bus (1-25);
Local bus interface's logic (1-26) realizes being connected of DSP digital signal processor (1-11) and local bus (1-25);
SDRAM (1-12) is for realizing the data buffer storage of DSP digital signal processor (1-11); FLASH (1-13) is used for storing the sheet internal program of DSP digital signal processor (1-11), does not lose with the program power down that guarantees to be loaded in sheet;
DDR SDRAM (1-41) is used for realizing the data buffer storage of logic controller (1-2); Platform FLASH (1-42) is used for the sheet internal program of stored logic controller (1-2), does not lose with the program power down that guarantees to be loaded in sheet.
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| CN104991880A (en) * | 2015-06-03 | 2015-10-21 | 北京浩正泰吉科技有限公司 | FC-AE-ASM communication board card based on PCI-E interface |
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| CN112486877A (en) * | 2020-11-05 | 2021-03-12 | 中国航空工业集团公司西安航空计算技术研究所 | Outfield guarantee and test platform of universal FC conversion interface module |
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| CN115102620A (en) * | 2022-07-11 | 2022-09-23 | 天津市英贝特航天科技有限公司 | Optical fiber 1553B bus communication device |
| CN115102620B (en) * | 2022-07-11 | 2024-05-28 | 天津市英贝特航天科技有限公司 | Optical fiber 1553B bus communication device |
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